APPENDIX A SECTION 4(F) RESOURCE EVALUATION
Appendix A Section 4(f) Resource Evaluation
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 1
APPENDIX A SECTION 4(F) RESOURCE EVALUATION
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To: Ron Kiaaina, P.E. Date: October 26, 2021
Project Manager
California Department of Transportation, District 4
From: Kanda Raj
Project Manager
Alameda County Transportation Commission
(1) SUBJECT: I-80/ASHBY AVENUE INTERCHANGE (STATE ROUTE 13 [SR-13]) IMPROVEMENT PROJECT – SECTION 4(F) RESOURCE EVALUATION
(2) PROJECT DESCRIPTION
The Interstate 80 (I-80)/Ashby Avenue Interchange (interchange) is located on I-80 between post miles (PM) 4.58 on I-80 and 13.90 on State Route (SR) 13 in the cities of Berkeley and Emeryville, in Alameda County. The I-80/Ashby Avenue Interchange Improvement Project (proposed project) would replace the existing elevated interchange connector ramps with a new bridge over I-80, realign access to the West Frontage Road, and introduce a new bicycle and pedestrian overcrossing (BPOC) and connection from 65th Street/Shellmound Street to the San Francisco Bay Trail. The proposed project consists of one Build Alternative which would improve safety, traffic, pedestrian, and bicycle operations. Figure 1 shows the project location. Figure 2 shows the proposed improvements. (3) REGULATORY BACKGROUND
Section 4(f) of the Department of Transportation Act of 1966, codified in federal law as 49 United States Code (USC) 303, declares that “it is the policy of the United States Government that special effort should be made to preserve the natural beauty of the countryside and public park and recreation lands, wildlife and waterfowl refuges, and historic sites.” Section 4(f) specifies that the Secretary of Transportation may approve a transportation program or project requiring the use of publicly-owned land of a public park, recreation area, or wildlife and waterfowl refuge of national, state, or local significance, or land of an historic site of national, state, or local significance (as determined by the federal, state, or local officials having jurisdiction over the park, area, refuge, or site) only if:
there is no prudent and feasible alternative to using that land; and the program or project includes all possible planning to minimize harm to the park, recreation area, wildlife and waterfowl refuge, or historic site resulting from the use.
The environmental review, consultation, and any other action required in accordance with applicable federal laws for this proposed project is being, or has been, carried out by the California Department of Transportation (Caltrans) under its assumption of responsibility pursuant to NEPA Assignment by the Federal Highway Administration (23 USC 327). To determine impacts of transportation projects on Section 4(f) properties, there are three main types of use: direct use, temporary use, and constructive use. A project may result in a de minimis impact under direct or temporary use, but not constructive use.
Direct, temporary, and constructive use are defined below, as well as de minimis findings. 3 (4)
(5)
(6)
(7) Figure 1 Project Location
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4 (8) Figure 2 Build Alternative
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(9) Direct Use
A direct use of a Section 4(f) resource occurs when the property is permanently incorporated into a transportation facility. This may occur as a result of a full or partial acquisition of the property, permanent easement, or temporary easements that exceed regulatory requirements noted under temporary use, below.
(10) Temporary Use
A temporary use of a Section 4(f) resource occurs when there is a temporary occupancy of property that is considered adverse in terms of the preservationist purpose of the Section 4(f) statute. Under the Federal Highway Administration/Federal Transit Administration (FHWA/FTA) regulations (23 CFR 774.13), a temporary occupancy of property does not constitute a use of a Section 4(f) resource when all the following conditions are satisfied:
Duration is temporary (i.e., less than the time needed for construction of the project) and there should be no change in ownership of the land.
Scope of work is minor (i.e., both the nature and the magnitude of the changes to the Section 4(f) property are minimal).
There are no anticipated permanent adverse physical impacts, nor will there be interference with the protected activities, features, or attributes of the property, on either a temporary or permanent basis.
The land being used must be fully restored (i.e., the property must be returned to a condition which is at least as good as that which existed prior to the project).
There must be documented agreement of the official(s) with jurisdiction over the Section 4(f) resource regarding the above conditions.
(11) Constructive Use
A constructive use of a Section 4(f) resource occurs when a transportation project does not permanently incorporate land from the resource, but the proximity of the project results in impacts (e.g., noise, vibration, visual, and property access) that are so severe that the protected activities, features, or attributes that qualify a resource for protection under Section 4(f) are substantially impaired. For example, a constructive use can occur under one of the following conditions:
The projected increase in noise attributable to the project substantially interferes with the use and enjoyment of a noise-sensitive facility protected by Section 4(f).
The project substantially impairs aesthetic features of a resource protected by Section 4(f), where such features are considered important contributing elements to the value of the resource. An example of such an effect would be locating a proposed transportation facility in such proximity that it obstructs or eliminates views considered part of a National Register of Historic Places (NRHP) eligible, architecturally significant, or historical building’s Section 4(f) eligibility. Another example would be locating a proposed transportation facility in such proximity that it detracts from the setting of a park or historic site which derives its value in substantial part due to its setting.
The project results in access restrictions that substantially diminishes the utility of a significant publiclyowned park, recreation area, or historic site. (12) De Minimis Findings
Section 6009(a) of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), Pub. L. 109-59, amended existing Section 4(f) legislation at 23 USC 138 and 49 USC 303, to simplify the processing and approval of projects that would result in de minimis impacts (minor impacts) 7 04-ALA-80/13-PM 4.58/13.90
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on lands protected by Section 4(f). The requirements of Section 4(f) would be considered satisfied if the project would have only a “de minimis impact” on the Section 4(f) resource. The provision allows avoidance, minimization, and mitigation measures to be considered in making a de minimis determination. A de minimis impact is defined in 23 CFR 774.17 as follows:
For parks, recreation areas, and wildlife and waterfowl refuges, a de minimis impact would not adversely affect the features, attributes, or activities qualifying the property for protection under Section 4(f).
For historic sites, a de minimis impact means that, in accordance with 36 CFR 800, no historic property is affected by the project or the project would have “no adverse effect” on the property in question.
Officials with jurisdiction over a 4(f) resource must concur in writing with a de minimis determination.
For recreational or refuges properties, concurrence from the officials having jurisdiction over the properties is required. For historical sites, concurrence from the State Historic Preservation Officer is required.
(13) CONSTRUCTION ACTIVITIES
Construction activities for the proposed project would include excavation, drilling, dewatering, pavement demolition, bridge demolition, mass grading, concrete form work, pavement installation, storm system installation, landscaping and irrigation, sign installation, striping operations, and traffic control. Construction work would be done primarily during daylight hours from 7:00 a.m. to 6:00 p.m.
However, nighttime work and temporary street closures would be necessary for some project elements, to avoid major disruption to traffic and to avoid safety hazards such as demolition of the existing connectors. The most notable street closure relating to 4(f) resources is the temporary closure of West Frontage Road which will limit vehicular access to two public parks. Nighttime construction activities are anticipated to avoid disruption to traffic along I-80. Temporary construction easements would be required for construction equipment storage, staging, and laydown from Berkeley near Aquatic Park and from Emeryville along Shellmound Street.
(14) OPERATIONAL ACTIVITIES
Operation of the new bridge, pedestrian overcrossing and realigned West Frontage Road could include constructive use impacts such as noise impacts to parks. The potential for operational impacts will also be analyzed.
(15) SECTION 4(F) ANALYSIS
For the purposes of this evaluation, two terms describing the study area will be used in order to be consistent with standard conventions. When evaluating potential historic and archaeological resources, the term Area of Potential Effects (APE) will be used. The APE is defined as the geographical area(s) within which an undertaking may cause changes in the character or use of historic and archaeological properties (see Figure 3). The term Environmental Study Limits (ESL) will be used to discuss the area where recreational resources are located. Figure 4 shows the locations of the Section 4(f) resources discussed below.
8 (16)
(17)
(18) Figure 2 Area of Potential Affect
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9 Figure 4 Section 4(f) Resources
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10 APPENDIX A SECTION 4(F) RESOURCE EVALUATION
The resources in this Section 4(f) analysis include: one historic resource, the KRE Radio Station building and four public recreational resources. Christie Park in Emeryville would be defined as a 4(f) resources, but is too far away from the project location to be subject to an impact or use during operation or construction of the proposed project. Therefore they are not included in the analysis below. (19) CULTURAL RESOURCES
(20) KRE Radio Station Building
The KRE Radio Station building, located 200 feet north of the I-80 onramp, is the only NRHP eligible historic property present within the APE. Other resources evaluated for historical significance included a State-owned bridge, three bridge overcrossings, four buildings, and Berkeley Aquatic Park, which overlaps with the proposed project’s APE. These resources were found to have no historical significance.
Construction Impacts
Project construction would not directly or indirectly impact the KRE Radio Station Building. The boundaries of the historic property are limited to the KRE radio station building and do not include the transmitting tower scheduled for removal and replacement, or any other portions of the subject parcel.
As such, the proposed project would not have any effects on historic properties/historical resources pursuant to 36 CFR 800.4(d)(1). Therefore, there would be no use of the Section 4(f) resource.
Operational Impacts
Portions of ROW would be acquired from the northeast quadrant of the interchange near the KRE radio station building. The acquisition would be necessary for the construction of the Bay Street connector to Ashby Avenue. A permanent construction easement would also be required for future wall maintenance. The project team will work with the property owner in making the appropriate modifications. This acquisition would not impact the KRE Radio Building and would not affect its eligibility status.
(21) Archeological Resources
No known archaeological sites are located within the APE. Therefore, no known archaeological sites would be affected by the proposed project.
(22) PUBLIC RECREATIONAL RESOURCES
The following public recreational resources are present in the project area and are discussed in detail below: Berkeley Aquatic Park, San Francisco Bay Trail, Point Emery, and Christie Park. (23) Berkeley Aquatic Park
The Berkeley Aquatic Park provides a wide range of recreational opportunities, including bird-watching, boating, hiking, and a "Dream Land for Kids" play area, as well as a habitat for bird and aquatic life. The park is located north of the Ashby Avenue Interchange and overlaps with the ESL.
Construction Impacts
Access
The proposed relocation of one guy wire for the KRE transmitting tower would require construction activity along Bay Street. However, Bay Street and the southern access point to Berkeley Aquatic Park will be maintained during construction. No interruptions to access are anticipated in the Berkeley Aquatic Park area.
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Noise
Construction noise has the potential to affect Berkeley Aquatic Park due to the relative distance between the project location and the park (less than 1,000 feet). The highest maximum instantaneous noise levels would result from demolition, bridge work, paving, and utility equipment. Construction noise for all receptors would be short-term and intermittent.
The proposed project would be subject to construction noise provisions listed in the Berkeley Municipal Code, (Section 5.13.05). Noise levels during construction would be temporary and the majority of construction activities would be limited to daytime construction hours: 7:00 a.m. to 6:00 p.m. However, there would be several intervals where construction activities would occur at night (outside of the limitations imposed by the municipal codes) along the mainline of I-80 and along the San Francisco Bay Trail. Nighttime activities would be necessary to avoid major disruption for tasks that could interfere with traffic or create safety hazards such as demolition of the existing connectors.
Nighttime work would include demolition, placement of the precast girder, and construction of new foundations. The proposed project would require an exception from Caltrans Standard Specification, Section 14-08.02 for this use of concrete saws. Standard Caltrans noise control measures would be implemented to minimize or reduce the potential for noise impacts from project construction. As such, the proposed project would not have effects related to construction noise on Berkeley Aquatic Park Section 4(f) resources. Therefore, no constructive use of Berkeley Aquatic Park would occur.
Operational Impacts
Access
Once the proposed project is constructed, bicyclists and pedestrians at the Berkeley Aquatic Park can utilize the pedestrian overcrossing at 65th Street to access the regional San Francisco Bay Trail on the other side of I-80. This is a noted gap closure and part of the stated purpose of the proposed project.
Therefore, no use or operational impacts are anticipated.
Noise
Once the proposed project is constructed, traffic and operations will resume with the new interchange configuration. Berkeley Aquatic Park would not be subject to additional operational noise impacts from the interchange, because the volume of traffic along the closest segment (new eastbound I-80 onramp) would be similar to existing conditions. Therefore, no constructive use or operation impacts are anticipated.
(24) San Francisco Bay Trail
The San Francisco Bay Trail is a planned 500-mile walking and cycling path that connects 47 cities across 9 counties all along the San Francisco Bay shoreline. Besides amenities along the San Francisco Bay Shoreline, the San Francisco Bay Trail provides connection to other multimodal facilities, such as Berkeley Aquatic Park, Point Emery, and marinas in Emeryville. It also provides an active transportation corridor.1 The San Francisco Bay Trail passes through the ESL west of the Ashby Avenue Interchange. 1 The San Francisco Bay Trail “The Bay Trail Plan,” 2021. Available here: https://baytrail.org/about-thetrail/welcome-to-the-san-francisco-bay-trail/. Last accessed: June 29, 2021. 12 04-ALA-80/13-PM 4.58/13.90
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Construction Impacts
Access
During construction of the proposed outfall south of Point Emery, for approximately 4 weeks, a temporary bicycle detour around the outfall construction area would be implemented to maintain full access to the San Francisco Bay Trail. However, public access along the San Francisco Bay Trail would be maintained at all times. All temporarily disturbed areas would be fully restored to pre-project conditions once temporary impacts are complete. Therefore, no use or impacts to the San Francisco Bay Trail would occur during construction.
Noise
As with Berkeley Aquatic Park, the San Francisco Bay Trail is close enough to the construction area that it will be subject to noise impacts during construction. The highest maximum instantaneous noise levels would result from demolition, bridge work, paving, and utility equipment. Construction noise for all receptors would be short-term and intermittent.
Noise levels during construction would be temporary and the majority of construction activities would be limited to daytime construction hours: 7:00 a.m. to 6:00 p.m. However, there would be several intervals where construction activities would occur at night (outside of the limitations imposed by the municipal codes) along the mainline of I-80 and along the San Francisco Bay Trail. Nighttime activities would be necessary to avoid major disruption for tasks that could interfere with traffic or create safety hazards such as demolition of the existing connectors.
Nighttime work would include demolition, placement of the precast girder, and construction of new foundations. The proposed project would require an exception from Caltrans Standard Specification, Section 14-08.02 for this use of concrete saws. Standard Caltrans noise control measures would be implemented to minimize or reduce the potential for noise impacts from project construction. As such, the proposed project would not have effects related to construction noise on the San Francisco Bay Trail. Therefore, no constructive use of the San Francisco Bay Trail would occur.
Operational Impacts
Access
Once the proposed project is constructed, more users would have access to the San Francisco Bay Trail from the connection provided by the pedestrian overcrossing over I-80 at 65th Street. Public access to the trail would not be reduced as a result of operation of the proposed project, and any minor effects on the resource would be minimized, mitigated, and avoided. No operational uses of or impacts to the San Francisco Bay Trail are anticipated.
Noise
Once the proposed project is constructed, traffic and operations will resume with the new interchange configuration. The San Francisco Bay Trail would not be subject to operational noise impacts from the interchange because the volume of traffic along the West Frontage Road would be similar to existing conditions. Therefore, no constructive use or operation impacts are anticipated. 13 04-ALA-80/13-PM 4.58/13.90
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(25) Point Emery
Point Emery is a small peninsular beach-front park featuring unobstructed views of the San Francisco Bay maintained by the City of Emeryville. The park features a driveway access at Point Emery Lane and also has a beach access path, and a small hiking path that connects to the San Francisco Bay Trail. Point Emery also has several launch points to San Francisco Bay for small sport watercraft and is popular destination for kayakers, stand-up paddlers, kiteboarders and windsurfers. Point Emery has a surface parking lot with 13 standard parking spaces and one handicapped parking space, and is located west of the I-80 Ashby Avenue Interchange within the ESL.
Construction Impacts
Access
The temporary closure of West Frontage Road from University Avenue would prohibit vehicular access to Point Emery located west of the interchange and approximately 14 associated parking spaces. Point Emery can be accessed during the temporary closure of West Frontage Road via the San Francisco Bay Trail, thus maintaining pedestrian access during construction. However, vehicular access and small watercraft launching would not be available during the temporary street closure. Signage and notification of alternate facilities would be included as part of the TMP. Once the West Frontage Road realignment is complete, vehicular access to Point Emery as well the parking lot would be fully restored.
The TMP would minimize impacts to access to Point Emery during construction.
Noise
Point Emery is close enough to the construction area that it will be subject to noise impacts during construction. The highest maximum instantaneous noise levels would result from demolition, bridge work, paving, and utility equipment. Construction noise for all receptors would be short-term and intermittent.
Standard Caltrans noise control measures would be implemented to minimize or reduce the potential for noise impacts from project construction. As such, the proposed project would not have effects related to construction noise on the San Francisco Bay Trail. Therefore, no constructive use of Point Emery would occur.
Operational Impacts
Access
The pedestrian overcrossing would enhance recreational access to Point Emery. Therefore, the proposed project would have no operational or use impacts to Point Emery.
Noise
Once construction of the proposed project has been completed, Point Emery will resume its normal operations and all access and on-street parking will be restored. The alignment of West Frontage Road would occur further away from Point Emery after construction. Therefore, the proposed project would have no operational or use impacts to Point Emery related to noise. (26) Christie Park
Christie Park is a small neighborhood park located approximately 0.5 mile south of the project location and includes an ocean-themed children’s playground and a dog park. However, Christie Park is located 14 04-ALA-80/13-PM 4.58/13.90
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too far away from the project location to be impacted by the construction or operation of the proposed project.
(27) SUMMARY OF FINDINGS
The proposed project would not result in any direct use or temporary occupancy of historic or recreational resources. Potential increases in noise attributable to the proposed project would be temporary and would not substantially impair features or attributes of Berkeley Aquatic Park, San Francisco Bay Trail, Point Emery, or Christie Park. Detours during construction periods would be temporary and only during the construction period and would be managed as part of the TMP. The proposed project would not result in a constructive use of the described Section 4(f) resources. The proposed project would not result in a use of any other Section 4(f) resources.
PREPARED BY:___________________________________ DATE: ____________ Andrew Metzger
Project Manager, Circlepoint
APPROVED BY:___________________________________ DATE: ____________ Wahida Rashid
Caltrans Branch Chief, Environmental Planning
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16 APPENDIX B TITLE VI POLICY STATEMENT
Appendix B Title VI Policy Statement
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 1
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INTERCHANGE IMPROVEMENT PROJECT 2
APPENDIX B TITLE VI POLICY STATEMENT
INTERSTATE 80 ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 3
APPENDIX B TITLE VI POLICY STATEMENT
INTERSTATE 80 ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 4
APPENDIX C ENVIRONMENTAL COMMITMENTS RECORD
Appendix C Environmental Commitments Record
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 1
APPENDIX C ENVIRONMENTAL COMMITMENTS RECORD
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY Appendix C Environmental Commitment Record (ECR)
In order to be sure that all of the environmental measures identified in this document are executed at the appropriate times, the following mitigation program (as articulated on the proposed Environmental Commitments Record [ECR] which follows) would be implemented. During project design, avoidance, minimization, and /or mitigation measures will be incorporated into the project’s final plans, specifications, and cost estimates, as appropriate. All permits will be obtained prior to implementation of the project. During construction, environmental and construction/engineering staff will ensure that the commitments contained in this ECR are fulfilled. Following construction and appropriate phases of project delivery, long-term mitigation maintenance and monitoring will take place, as applicable. As the following ECR is a draft, some fields have not been completed, and will be filled out as each of the measures is implemented. Note: Some measures may apply to more than one resource area. Duplicative or redundant measures have not been included in this ECR.
ID No. Task and Brief Description Source Project Timing Responsible Staff PF CON-1 Adhere to Caltrans’s standard specifications for noise control, dust abatement, demolition,
hazardous materials, and other good
housekeeping measures and best management
practices (BMPs) for the construction site.
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PF CON-2 The contractor will be responsible for securing all work zones in and around the construction sites,
including staging areas within Caltrans, City of
Emeryville, and City of Berkeley ROW. Security
of the project work zones will be the
responsibility of the contractor until completion of
construction.
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF COM-1
Access to all private properties will be
maintained by the contractor during construction.
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PF COM-2
Caltrans will coordinate relocation work with the
affected utility companies to minimize disruption
of services to customers in the area during
construction. If previously unknown underground
utilities are encountered, Caltrans will coordinate
with the utility provider to develop plans to
address the utility conflict, protect the utility if
needed, and limit service interruptions. Any
short-term, limited service interruptions of known
utilities will be scheduled well in advance, and
appropriate notification will be provided to users.
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PF COM-3 Caltrans will coordinate with emergency service providers to avoid emergency service delays by
ensuring that all providers are aware well in
advance of lane closures. Proactive public
information systems, such as changeable
message signs, would notify travelers of pending
construction activities. A TMP will also be
developed as part of the project to address traffic
impacts from staged construction, lane closures,
and specific traffic handling concerns such as
emergency access during project construction.
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Design through
Construction
Traffic Operations
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF COM-4 During the design phase, prepare a TMP that
includes plans for traffic rerouting, a detour plan
(if required), and public information procedures
with participation from local agencies, transit
services, local communities, business
associations, and affected drivers. Early and
well-publicized announcements and other public
information measures will be implemented prior
to and during construction to minimize confusion,
inconvenience, and traffic congestion. If detours
are required, detour routes will be planned in
coordination with Caltrans and the cities of
Berkeley and Emeryville traffic departments and
will be noticed to emergency service providers,
transit operators, and I-80 users in advance.
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Caltrans, Alameda
CTC, and Traffic
Operations.
PF COM-5 During construction of the project, some onstreet parking restrictions may be required on a temporary basis. A public outreach program will
be implemented throughout the construction
period to keep the public informed of the
construction schedule and scheduled parking
and roadway closures, including detour routes
and, if available, alternative parking.
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Construction
Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM UTL-1 Detailed utility coordination and verification will be required during the project’s design phase
project. The locations of the utilities will not be
positively identified until final design, in
coordination with the affected utility owners. Any
potential utility conflicts identified during the
design phase will be avoided if possible. If
relocation is necessary, such utilities would be
relocated to locations acceptable to the utility
provider within the right-of-way. If utilities cannot
be relocated within Caltrans’ ROW, additional
detailed screening of the relocation areas will be
required. Coordination with all utility owners
within the project location will continue during the
design and construction phases of the proposed
project.
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Section
2.1.8 Final Design through
Construction
Caltrans, Alameda
CTC
AMM UTL-2 Emergency service providers will be notified prior to construction of any temporary road closures
and/or detours as part of the Transportation
Management Plan (TMP). Caltrans would
prepare and implement a TMP as a part of PF
TRA-1, described in Section 2.1.5, Traffic and
Transportation. The TMP will specify all
timeframes for all lane closures and detours.
Implementation of the TMP will reduce shortterm operational effects to police, fire, and emergency service providers that may result
from construction of the proposed project.
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Section
2.1.8 Design through
Construction
Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF TRA-1 A Transportation Management Plan (TMP) would
be developed as part of the project construction
planning phase. The TMP would address
potential impacts to circulation of all modes of
travel (i.e., transit, bicycles, pedestrians, and
vehicles). Roadway and/or pedestrian access to
all occupied businesses and respective parking
lots would be maintained during project
construction. The TMP would include an
evaluation of potential detour impacts and would
also include measures to minimize, avoid, and/or
mitigate impacts to alternate routes. The TMP
would address coordination with local agencies
for traffic through or near the construction zone.
Staging areas would be located within the
existing Caltrans ROW.
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Section
2.1.9 Design through
Construction
Caltrans, Alameda
CTC
AMM TRA-1
The I-80 mainline closures would occur at night
for the placement of the pre-cast girders for the
proposed Ashby overcrossing, demolition of the
remaining original ramp structures over I-80 and
false work erection and removal for the bike and
pedestrian overcrossing. All closures and
detours will be advertised well in advance as part
of the public information campaign and
emergency/law enforcement will also be notified.
Draft IS/EA
2.1.9 Construction Contractor
AMM TRA-2
During the construction of West Frontage Road,
vehicular detours and closure would be
anticipated in Stages 1, 2, and 3.
Draft IS/EA
Section
2.1.9 Construction Contractor
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Mainline traffic would be transitioned temporarily
onto the right shoulder to accommodate the
median falsework support structure for BPOC.
Lane closure plans would be developed for
nighttime closures at each construction stage.
Draft IS/EA
Section
2.1.9 Construction Contractor
AMM TRA-4
The Potter Street eastbound I-80 on-ramp would
remain open until the construction of the new onramp and then it would be permanently closed and replaced by the new on-ramp.
Draft IS/EA
Section
2.1.9 Construction Contractor
AMM TRA-5
During the construction of the new outfall area, a
temporary detour around the construction area
will be implemented to ensure the continuous
access and function of the San Francisco Bay
Trail.
Draft IS/EA
Section
2.1.9 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF VIS-1
Vegetation Removal Measures. Includes the
following:
• Minimize the removal of groundcover,
shrubs, and mature trees to the maximum
extent possible, utilizing open areas for
contractor staging/storage areas.
• Protect existing vegetation outside the
clearing and grubbing limits from the
contractor’s operations, equipment, and
materials storage.
• Place high visibility temporary fencing
around vegetation to be protected before
roadway work begins.
• Provide truck watering of vegetation
when automated irrigation is interrupted
by construction.
Draft IS/EA
Section 1.0
Preliminary Design
through Construction
Caltrans, Alameda
CTC, Contractor
PF VIS-2 Fund required replacement planting through the parent roadway contract to be completed as a
separate contract, (within 2 years of roadway
completion,) with a three-year plant
establishment period (PEP), unless the
estimated cost is below $300,000 (then only oneyear PEP).
Draft IS/EA
Section 1.0
Preliminary Design
through Construction
Caltrans, Alameda
CTC
PF VIS-3 Revegetation Planting Measures. All disturbed
areas shall receive hydroseeded treatment of
erosion control grasses, and if appropriate,
locally native grasses.
Draft IS/EA
Section 1.0
Preliminary Design
through Construction
Caltrans, Alameda
CTC
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF VIS-4 Landscape Plantings. Use drought-tolerant
plants, including California native species, as
part of the planting palette where regionally
appropriate. Planting must be maintainable, low
maintenance, durable, and site appropriate.
Draft IS/EA
Section 1.0
Preliminary Design
through Construction
Caltrans, Alameda
CTC
PF VIS-5 Landscape Plantings. Plantings within the State right-of-way will follow the 1997 Caltrans Plant
Setback and Spacing Guide. Use of turf is
prohibited within the State right-of-way
Draft IS/EA
Section 1.0
Preliminary Design
through Construction
Caltrans, Alameda
CTC
PF VIS-6 Light and Glare. As directed by Caltrans,
appropriate light and glare screening measures
will be used at the construction staging areas
including the use of downward cast lighting.
Shielding will be used to the extent feasible for
new lighting apparatuses within the project area.
Lighting of the transportation facilities would be
shielded and directed to only areas that required
for operations and safety, to the maximum extent
feasible.
Draft IS/EA
Section 1.0
Design Caltrans, Alameda
CTC
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF VIS-7 Construction Impact Measures. Caltrans will use standard construction equipment and protocol for
the Build Alternative.
▪ Place unsightly materials, equipment
storage and staging so that they are not
visible within the foreground of the
highway corridor and local streets to the
maximum extent feasible. Where such
siting is unavoidable, material and
equipment shall be visually screened to
minimize visibility from the roadway and
nearby sensitive off-road receptors.
▪ Revegetate all areas disturbed by
construction, staging and storage per PF
VIS-1 through PF VIS-7
Limit all construction lighting to within the area of
work and avoid light trespass through the use of
directional lighting and shielding as needed.
Draft IS/EA
Section
2.1.10 Construction Contractor
AMM VIS-1 To avoid the inadvertent creation of areas that appeal to human usage (e.g., open areas under
bridge structures and isolated vacant lots), the
final design will include measures to discourage
the creation of encampments. Vacant areas
under new ramp bridges will be fenced off. Other
measures such as brush removal and placement
of larger landscaping space fillers, such as
boulders, undulating landforms, mixed size
cobbled paving, etc., may also be considered in
the final design.
Draft IS/EA
Section
2.1.10 Final Design Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM VIS-2 Aesthetic Treatments. To reduce the visual
impact of new retaining walls and bridge
structures, aesthetic treatments consisting of
color, texture and/or patterning will be applied to
reduce visual impacts.
▪ New concrete retaining walls should
receive architectural treatment that is
context sensitive.
▪ Treatments of color, pattern and/or
texture are required in order to reduce
visual impacts, glare, and the possible
incidence of graffiti.
Draft IS/EA
Section
2.1.10 Design through
Construction
Caltrans, Alameda
CTC, Contractor
▪
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM VIS-3 Additional Construction Impact Measures.
• Any roadside vegetation and irrigation
systems that are damaged or removed
during project construction shall be
replaced according to Caltrans policy and
the requirements of the Cities of Berkeley
and Emeryville.
• When trenching for utilities, avoid
trenching within drip lines of trees and
screening shrubs. Directional drilling that
would avoid damaging root systems of
established plant material shall be used,
when reasonable, as opposed to open
trenching to install new conduit in places
where work within the drip line would be
required. Trees and screening shrubs
shall be protected from damage during
construction.
• Provide highway planting within Caltrans
right-of-way where feasible. Caltrans
safety-setback requirements would apply
for all plantings within State right-of-way.
Provide street trees, shrubs, and
groundcover on local streets where
feasible.
Draft IS/EA
Section
2.1.10 Construction Contractor
PF CUL-1 If cultural materials are discovered during
construction, all earthmoving activity within and
around the immediate discovery area will be
diverted until a Caltrans qualified archaeologist is
contacted to assess the nature and significance
of the find.
Draft IS/EA
Section
2.1.11 Construction Caltrans, Alameda
CTC, Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF CUL-2 If Caltrans Professionally Qualified Staff
determines that cultural materials contain human
remains, State Health and Safety Code Section
7050.5 states that further disturbances and
activities shall stop in any area or nearby area
suspected to overlie remains. Caltrans’ Cultural
Resources Studies Office will contact the
Alameda County Coroner. Pursuant to CA PRC
Section 5097.98, if the remains are thought by
the coroner to be Native American, the coroner
will notify the NAHC, which will then notify the
Most Likely Descendent. Caltrans, District 4,
Cultural Resources Studies Office will work with
the Most Likely Descendent on the respectful
treatment and disposition of the remains. Further
provisions of PRC 5097.98 are to be followed as
applicable
Draft IS/EA
Section
2.1.11 Construction Contractor
PF WQ-1 Temporary construction site BMPs will be
implemented during construction to prevent any
construction materials or debris from entering
storm drains or drainage ditches within the
project vicinity. Permanent erosion control BMPs
will be implemented to prevent silt and sediment
from entering drainage facilities and discharging
into the Bay.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF WQ-2 The design features to address water quality
impacts are a condition of the Caltrans MS4
Permit, MRP, CGP, and other regulatory agency
requirements. Details of these features or BMPs
will be developed and incorporated into the
project design and operations prior to
construction. With implementation of these
design features or BMPs, short-term
construction-related water quality impacts and
permanent water quality impacts will be avoided
or minimized.
Draft IS/EA
Section
2.2.2 Design Caltrans, Alameda
CTC
PF WQ-3 The CGP, Caltrans, and local standards require
the project’s contractor to implement an SWPPP
to comply with the conditions of the CGP. The
SWPPP will be submitted by the contractor and
approved by Caltrans prior to the start of
construction. The SWPPP will detail the
measures needed to prevent temporary water
quality impacts resulting from construction
activities. The SWPPP will also include
development of a Construction Site Monitoring
Program that details procedures and methods
related to the visual monitoring, sampling, and
analysis plans.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF WQ-4 Prior to any soil disturbance, a Notice of Intent will be filed with the SWRCB’s Storm Water
Multiple Application and Report Tracking
System. In addition to filing a Notice of Intent, all
dischargers must electronically file Permit
Registration Documents, Notice of Termination,
changes of information, sampling and monitoring
information, annual reporting, and other required
compliance documents through the SWRCB’s
Storm Water Multiple Application and Report
Tracking System.
Draft IS/EA
Section
2.2.2 Construction Contractor
PF WQ-5 Temporary impacts to water quality during
construction will be avoided or minimized by
implementing temporary construction site BMPs.
Typical construction site BMPs that shall be
considered for this project include soil
stabilization, sediment control, tracking control,
non-stormwater management, and waste
management and materials pollution control.
These BMPs are discussed in greater detail in
Chapter 2. The selected BMPs are consistent
with the practices required under the CGP. The
actual minimum temporary construction site
BMPs necessary for the project to comply with
the CGP, Caltrans, and local standards will be
determined during the design phase.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF WQ-6 Dewatering activities and the clean water
diversion will comply with the Caltrans Standard
Specifications and Field Guide to Construction
Site Dewatering, and, if required, a separate
dewatering permit will be obtained prior to the
start of construction.
Draft IS/EA
Section
2.2.2 Construction Contractor
PF WQ-7
A spill on the roadway will trigger immediate
response actions to report, contain, and mitigate
the incident. The California Office of Emergency
Services has developed a Hazardous Materials
Incident Contingency Plan, which provides a
program for response to spills involving
hazardous materials. The plan designates a
chain of command for notification, evacuation,
response, and cleanup of spills.
Draft IS/EA
Section
2.2.2 Construction Contractor
PF WQ-8
Drainage features, such as energy dissipation
devices (e.g., flared end sections and tee
dissipaters), will be considered at drainage
outfalls to reduce the velocity and dissipate flows
as they discharge from the culvert.
Draft IS/EA
Section
2.2.2 Design Caltrans, Alameda
CTC
PF WQ-9
Rock slope protection will be placed at culvert
outfalls and within drainage ditches and swales
where water flow may cause erosion.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF WQ-10
Permanent erosion control measures will be
applied to all exposed areas once grading or soil
disturbance work is completed as a permanent
measure to achieve final slope stabilization.
These measures may include hydraulically
applying a combination of hydroseed,
hydromulch, straw, tackifier, and compost to
promote vegetation establishment and installing
fiber rolls to prevent sheet flow from
concentrating and causing gullies. For steeper
slopes or areas that may be difficult for
vegetation to establish, measures such as
netting, blankets, or slope paving can be
considered to provide permanent stabilization.
Draft IS/EA
Section
2.2.2 Construction Contractor
PF WQ-11
The proposed added impervious area is minimal;
therefore, the potential increase in sedimentladen flows is expected to be minimal. Existing drainage facilities are expected to be modified or
removed and new drainage features installed to
convey runoff. The MRP prioritizes the use of
low-impact development measures for
stormwater treatment controls. These measures
are harvesting and use, infiltration,
evapotranspiration, and biotreatment. Other
conventional treatment measures (e.g., basins
and vaults) are allowable under special
conditions outlined in the permit.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF WQ-12
Given the site and design limitations, other
conventional-type treatment measures that
capture and treat stormwater runoff may need to
be considered for this project; these devices can
include basins, media filters, or tree well filters. In coordination with Caltrans, the City of Berkeley,
and the City of Emeryville, nonstandard
treatment measures will also be considered,
such as the use of low flow pumps to convey
runoff to a treatment facility. The final drainage
design, selection of treatment BMP types and
locations, and determination of impervious area
treated will be refined during the design phase
when detailed design information is developed.
Draft IS/EA
Section
2.2.2 Design Caltrans, Alameda
CTC
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY AMM WQ-1 Temporary Construction BMPs. Pursuant to the
Construction General Permit, a SWPPP would
be developed, which includes guidance for
design staff to incorporate special provisions into
construction contracts to include measures to
protect sensitive areas and to prevent and
minimize storm water and non-storm water
discharges.
The SWPPP would reference the Caltrans
Construction Site BMPs Manual. This manual is
comprehensive and includes many other
protective measures and guidance to prevent
and minimize pollutant discharges. Temporary
BMPs to be completed, at a minimum, are
outlined below.
Construction Site BMPs would minimize
temporary effects that could occur during
construction by carrying out the following
measures:
▪ Temporary soil stabilization, such as the
use of plastic covers for stockpiles and
high visibility fences to designated areas
of off-limits to the contractor.
▪ Temporary sediment control, which
usually consists of using devices to
physically block sediment runoff. Such
devices include fiber rolls, silt fences,
gravel bag berms, and hydraulic mulch.
These devices can either divert, detain,
or protect disturbed soil from erosion.
Wind erosion control measures:
▪ Dust and soil tracking control to prevent
construction equipment from tracking soil
and dust around and outside of the
construction area. Points of entrances
and exits to the construction site would
Draft IS/EA
Section
2.2.2 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 20
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff be stabilized to reduce the tracking of
mud and dirt onto public roads.
▪ Management of water used during
construction to prevent further runoff and
excess water use.
▪ Waste management and materials
pollution control, especially for concrete
washout facilities. The contractor would
specify vehicle washing areas to contain
concrete waste materials.
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY AMM WQ-2 Design Pollution Prevention BMPs. Design
Pollution Prevention BMPs would be
employed to minimize hydromodification
impacts, and may include but are not limited
to:
▪ Attenuation of peak stormwater flow
through passive or active measures to
ensure peak flow volumes do not
increase with project completion. Passive
measures may include runoff detention
and/or self-retaining areas), and active
measures may include subsurface pipe
arrays or vaults with metered discharge.
▪ Soil modification to enhance local
infiltration capacities.
▪ Increased on-site pervious area. This
would include planting additional areas of
vegetation and/or laying mulch in place of
concrete, where feasible.
▪ Energy dissipation zones/devices to
reduce erosion potential: Necessary
erosion control would be applied to
unlined ditches to minimize erosion
downstream from potentially increased
discharge.
▪ Temporary or long-term preservation of
existing vegetation which would avoid
any disturbance beyond what would be
necessary to widen the existing
transportation facilities.
▪ Drainage measures to convey
concentrated culvert/storm drain
discharge- lined or reinforced drainage
swales/ditches, appropriate culvert outfall
and inlet structures for improved
hydraulic performance
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff ▪ Revegetation and installation of
temporary erosion protection measures
(e.g., erosion control blankets, mulch, coir
logs, straw wattles etc.). When
practicable, slope stability and erosion
concerns would be reduced by
maintaining or matching existing slopes.
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY AMM WQ-3 Treatment BMPs. Post-construction
treatment BMPs would ensure the proposed
project does not increase stormwater
volumes in the existing stormwater
conveyance channels. Treatment BMPs may
include but are not limited to the following
measures, with infiltration-based measures
receiving higher priority, where feasible:
Infiltration-Based BMPs:
▪ Biofiltration (bioswales, infiltration
trenches/galleries) to reduce sediment
and other contaminant runoff
▪ Bioretention facilities (flow-through) to
manage stormwater volumes during
precipitation
▪ Earthen media filters to retain and filter
runoff
▪ Detention or retention (wet) basins to
remove soluble pollutants
Capture and Treatment BMPs:
▪ Multi-chamber treatment trains to treat
stormwater in areas with limited space
▪ Media filters (vault type) to also treat
stormwater in small sites that are highly
urbanized and may be highly polluted
▪ Dry weather flow diversion to stop or
impede water flow during dry weather
▪ Lined detention devices to reduce the
velocity of stormwater flow
▪ Gross solids removal devices (in-line
filters) to remove litter, debris, and
vegetation from stormwater runoff
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM WQ-4 Minimize Impacts to Aquatic Resources.
Work within the San Francisco Bay will be
limited to the smallest area possible to
complete the proposed construction
activities. Prior to conducting work within San
Francisco Bay, Caltrans will implement a
cofferdam spanning planned in-water work
areas to avoid water quality impacts and
potential impacts to aquatic habitat for
wildlife. Additionally, along San Francisco
Bay and in the vicinity of the Radio Tower
Pond and the Model Yacht Basin, Caltrans
will delineate project limits with high-visibility
fencing to avoid ground disturbance adjacent
to work and access areas.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM WQ-5 Operations and Maintenance BMPs.
Maintenance BMPs are preventative
measures to ensure that minimal pollutants
are discharged to surface waters via
Caltrans’ storm water drainage systems.
Maintenance activities involve the use of a
variety of products. Under normal, intended
conditions of use, these materials are not
considered pollutants of concern. However, if
these products are used, stored, spilled, or
disposed of in a way that may cause them to
contact storm water or enter storm water
drainage systems, they may become a
concern for water quality. Maintenance
activities are performed in dry weather to
minimize impacts to water quality; however,
conditions may exist which require these
activities be conducted in wet weather.
Maintenance BMPs are outlined in the
Caltrans Storm Water Quality Handbook,
Maintenance Staff Guide.
Draft IS/EA
Section
2.2.2 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF GEO-1 With respect to worker safety during
construction, OSHA requires employers to
comply with hazard-specific safety and health
standards. Pursuant to Section 5(a) (1) of
OSHA, employers must provide their
employees with a workplace free from
recognized hazards likely to cause death or
serious physical harm. Potential seismicrelated hazards to workers during construction are expected to be less than
substantial with compliance with the OSHA
and Caltrans standard design and
construction guidelines.
Draft IS/EA
Section 1.0/
Section
2.2.3 Construction Contractor
PF GEO-2 As part the design phase, expansive soils
shall be addressed through treatment or
removal as designated on construction plans,
to reduce the potential for structural damage.
Treatment of expansive soil may include lime
or other additives to reduce expansion
potential. Expansive soils may also be
replaced with a non-expansive fill material to
a depth where the seasonal moisture content
variation becomes relatively insignificant. The
appropriate depth shall be determined by a
qualified structural engineer.
Draft IS/EA
Section 1.0/
Section
2.2.3 Final Design Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY PF GEO-3 As part of the final design phase, Caltrans
requires preparation of structure foundation
reports and geotechnical design reports that
incorporate the results of subsurface field work
and laboratory testing. Site-specific subsurface
soil conditions, slope stabilities, and groundwater
conditions within the project location would be
verified during the preparation of these reports.
The identification of site-specific soil conditions
within the project location would be used to
determine the appropriate final design for
foundations that would support the project’s
structures. If corrosive soils are identified at
locations where new subsurface foundations
and/or piles are proposed (e.g., bridge
foundations, culverts, etc.), specially coated
rebar or alternative pipe culverts would be
specified in the contract documents.
Caltrans’ standard design and construction
guidelines incorporate engineering standards
that address seismic risks. Proposed structures,
such as retaining walls and overhead ramp
supports, constructed within the geologic study
area, would consider seismically induced
liquefaction and settlement during the final
design phase.
The final design phase would also include the
evaluation of the Design Response
Spectrum, which measures the ground
motion or acceleration caused by the input of
a vibration from an earthquake at a specific
location and can help in understanding how
structures would respond to earthquakes in a
given place. This information would be used
to inform the final design of project
structures.
Draft IS/EA
Section 1.0/
Section
2.2.3 Final Design Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM PAL-1 Paleontological Mitigation Plan. Prior to
construction, a Paleontological Mitigation Plan
(PMP) shall be drafted and would include
provisions for periodic spot checks to check for
the presence of unanticipated paleontological
resources during deeper excavations. Full-time
monitoring shall be required if unanticipated
paleontological resources are observed. In the
event of unanticipated paleontological resource
discoveries during project related activities, work
in the immediate vicinity of the discovery shall be
halted until it can be evaluated by a qualified
paleontologist.
Draft IS/EA
Section
2.2.4 Construction Contractor
PF HW-1
Caltrans specification SSP 14-11.12 (2015B) will
be included in the contract specifications and
implemented during construction to contain any
debris produced during removal of yellow
thermoplastic and yellow paint.
Draft IS/EA
Section 1.0
and/or
Section
2.2.5 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY AMM HAZ-1 During the final design phase, a Preliminary Site Investigation (PSI) of the project location shall be
performed to investigate hazardous materials
concerns related to soil, groundwater, and
construction materials identified in the Phase I
ISA.
▪ A workplan for the PSI shall be submitted
to Caltrans for review and approval. The
workplan shall include Caltrans guidance
for evaluating the potential reuse of ADLcontaminated soils in accordance with the Caltrans and DTSC’s Soil Management
Agreement for Aerially Deposited LeadContaminated Soils. ▪ The completed PSI shall be submitted to
Caltrans for review and approval.
▪ All environmental investigations
completed for the proposed project shall
be provided to the project contractors to
incorporate into their Health and Safety
and Hazard Communication programs.
▪ Based on the findings and
recommendations of the PSI, special soil,
groundwater, and construction materials
management and disposal procedures for
hazardous materials may be required.
Additionally, detailed construction worker
health and safety measures may be
required during construction.
▪ The following components shall be
included in the PSI:
▪ Representative soil and/or groundwater
sampling shall be conducted by a
licensed professional to evaluate the
potential presence of hazardous
materials in soil and groundwater as a
Draft IS/EA
Section
2.2.5 Final Design Caltrans, Alameda
CTC
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY part of the PSI. Sampling shall be
performed in accordance with the work
plan approved by Caltrans and shall
address the groundwater contamination
concerns identified in Table 2.2-5.
▪ Soil samples collected to evaluate ADL
shall be analyzed for total lead and
soluble lead to evaluate whether the
Department of Toxic Substances
Control’s variance issued to Caltrans
could apply. If applicable, the variance
would determine whether the leadaffected soils could be reused as fill within the project location.
▪ Soil and groundwater analytical results
shall also be screened against the San
Francisco Bay RWQCB’s Environmental
Screening Levels to determine
appropriate actions to ensure
construction worker protection and the
protection of future site users and the
environment. Samples shall also be
screened against hazardous waste
thresholds to determine soil management
options.
If soil and/or groundwater contaminants are
found, the regulatory authorities (federal, state or
local) may require that the soils be removed or
specially managed through hazardous waste
closure plans, contingency plans, remediation
orders, permits, or other administrative actions.
The responsible party (i.e., property owner of the
contaminated area) would comply with the
instructions in those plans, orders, permits, or
actions. Based on the areas of groundwater
concern identified in the IS/EA, implementation
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff of special soil and/or groundwater remediation
and handling efforts during construction is
anticipated to cost approximately $250,000.
Implementation of subsurface sampling for the
entire project location is anticipated to cost
approximately $200,000. The soil and
groundwater sampling would likely be a threemonth endeavor, assuming property access and approval of the work plan is obtained in a timely
fashion.
AMM HAZ-2 At a minimum, groundwater from dewatering of
excavations, if any, would be stored in Baker
tank(s) during construction activities and the
water would be characterized prior to disposal or
recycling. Similarly, excavated soil would be
stockpiled for waste characterization and testing.
This would be in addition to the pre
characterization of groundwater quality during
the Preliminary Site Investigation.
Draft IS/EA
Section
2.2.5 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM HAZ-3 In accordance with Caltrans protocol, a site
safety plan shall be prepared and implemented
prior to initiation of any construction/development
activities to reduce health and safety hazards to
workers and the public. In accordance with
Caltrans’ Standard Special Provision 07-330, the
contractor shall be required to prepare a Lead
Compliance Plan to prevent or minimize worker
exposure.
Lead Compliance Plan measures to address
ADL could include removing ADL soil, and/or
balancing soil removal and fill to maximize reuse
of ADL soil in the project location without
generating hazardous waste. Handling of
material containing ADL must result in no visible
dust migration. An effective means of controlling
dust must always be available when handling
material in work areas containing ADL at
hazardous waste concentrations.
Draft IS/EA
Section
2.2.5 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM HAZ-4 Hazardous building materials surveys shall be conducted by a qualified professional. All
structures that would be removed or modified
shall be inspected. Lead-based paint and
asbestos-containing material shall be included in
the hazardous materials building surveys. All
loose and peeling lead-based paint and
asbestos-containing material shall be removed
by a certified contractor(s) in accordance with
local, state, and federal requirements. All other
hazardous building materials shall be removed
from structures in accordance with California
OSHA regulations.
Draft IS/EA
Section
2.2.5 Construction Caltrans-approved
qualified professional
AMM HAZ-5 Yellow thermoplastic and yellow paint striping and markings on existing roadways shall be
tested for lead chromate prior to disturbance or
removal in accordance with Chapter 7 of
Caltrans’ Construction Manual. Yellow stripe and
pavement markings shall also be treated as a
hazardous waste; a lead compliance plan shall
be implemented, and residues shall be tested for
hazardous-waste classification prior to off-site
disposal. This work shall be completed in
accordance with Caltrans Standard Special
Provision 14 001.
Draft IS/EA
Section
2.2.5 Construction Contractor
AMM HAZ-6 Asphalt-concrete and Portland-cement concrete grindings shall be reused in accordance with San
Francisco Bay RWQCB guidelines for Caltrans’
projects or transported offsite for recycling or
disposal.
Draft IS/EA
Section
2.2.5 Construction Contractor
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF AQ-1 Water or dust palliative shall be applied to the site and equipment as often as necessary to
control fugitive dust emissions. Fugitive
emissions generally shall meet a “no visible dust”
criterion either at the point of emissions or at the
right-of-way line depending on local regulations
Draft IS/EA
Section 1.0
and Section
2.2.6 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY PF AQ-2 Measures to reduce PM10, PM2.5, and diesel
particulate matter from construction shall be
incorporated to the extent feasible to ensure that
short-term health impacts to nearby sensitive
receptors are avoided.
Such measures may include:
• All exposed surfaces (e.g., parking areas,
staging areas, soil piles, graded areas,
and unpaved access roads) shall be
watered two times per day.
• All haul trucks transporting soil, sand, or
other loose material offsite shall be
covered.
• All visible mud or dirt track-out onto
adjacent public roads shall be removed
using wet power vacuum street sweepers
at least once per day. The use of dry
power sweeping is prohibited.
• All vehicle speeds on unpaved roads
shall be limited to 15 mph.
• All roadways, driveways, and sidewalks
to be paved shall be completed as soon
as possible.
• Idling times shall be minimized either by
shutting equipment off when not in use or
reducing the maximum idling time to 5
minutes (as required by the California
airborne toxics control measure Title 13,
Section 2485 of California Code of
Regulations). Clear signage shall be
provided for construction workers at all
access points.
• All construction equipment shall be
maintained and properly tuned in
Draft IS/EA
Section 1.0
and Section
2.2.6 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 36
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff accordance with manufacturer’s
specifications. All equipment shall be
checked by a certified mechanic and
determined to be running in proper
condition prior to operation. At a
minimum, all equipment should meet the
current ARB fleet standards.
▪ A publicly visible sign with the
telephone number and person to
contact with the contractor regarding
dust complaints shall be posted. This
person shall respond and take
corrective action within 48 hours. The
BAAQMD phone number shall also be
visible to ensure compliance with
applicable regulations.
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 37
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF NOI-1 ▪ Limit paving and demolition activities to
between 7:00 a.m. and 7:00 p.m., where
feasible.
▪ Equip all internal combustion engine driven
equipment with intake and exhaust mufflers
that are in good condition and appropriate for
the equipment.
▪ Prohibit unnecessary idling (greater than 5
minutes in duration) of internal combustion
engines within 100 feet of residences.
▪ Avoid staging of construction equipment
within 200 feet of residences and locate all
stationary noise-generating construction
equipment, such as air compressors,
portable power generators, or self-powered
lighting systems as far as practical from
noise-sensitive receptors.
▪ Utilize “quiet” air compressors and other
“quiet” equipment where such technology
exists.
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 38
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF NOI-2 Inspection of equipment by the contractor will ensure that all equipment onsite is working
properly, in good condition, and effectively
muffled. All equipment will have sound-control
devices no less effective than those provided on
the original equipment. Each internal combustion
engine used for any purpose on the job or
related to the job shall be equipped with a muffler
of a type recommended by the manufacturer. No
internal combustion engine should be operated
on the jobsite without an appropriate muffler.
Idling equipment will be turned off.
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Contractor
PF NOI-3 Construction activities shall be minimized in the study area during evening, nighttime, weekend,
and holiday periods. Noise impacts are typically
minimized when construction activities are
performed during daytime hours; however,
nighttime construction may be desirable (e.g., in
commercial areas where businesses may be
disrupted during daytime hours) or necessary to
avoid major traffic disruption.
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Contractor
PF NOI-4 Restrict the hours of vibration-intensive
equipment or activities such as vibratory rollers
so that impacts to study area users are minimal
(e.g., restrict the hours to weekdays during
daytime hours).
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Contractor
PF NOI-5 The Resident Engineer will be responsible to
collect and respond to any complaints related to
construction noise.
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Resident Engineer
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF NOI-6 Truck loading, unloading, and hauling operations will be minimized so that noise and vibration are
kept to a minimum through the study area to the
greatest possible extent.
Draft IS/EA
Section 1.0
and Section
2.2.7 Construction Contractor
PF BIO-1 Adjacent to the riparian area along the Radio
Tower Pond and San Francisco Bay, project
limits will be delineated to avoid ground
disturbance adjacent to work and access areas.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
PF BIO-2 Implement project site BMPs as follows:
• Access routes and the number and size
of staging, access, and work areas will be
limited to existing paved, gravel, or other
previously compacted surfaces as
identified in the project plans. Movement
of heavy equipment to and from the site
will be restricted to established roadways.
• Routes and boundaries will be clearly
marked prior to initiating ground
disturbance.
Temporary impacts to water quality during
construction will be avoided or minimized by
implementing temporary construction site BMPs.
These will be implemented during construction
to prevent any off-site movement of construction
materials, sediment, or debris. Permanent
erosion control BMPs will be implemented to
prevent silt and sediment from entering drainage
facilities and discharging to the Bay.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 40
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF BIO-3 Wetlands Protection: The potential for adverse effects to water quality will be avoided by
implementing temporary and permanent BMPs
outlined in the Caltrans’ Stormwater Guide. An
SWPPP will be developed for the project and will
comply with the Caltrans SWMP. The SWPPP
will reference the Caltrans Construction Site
BMP Manual, which includes protection
measures that are regularly incorporated into
projects to prevent and minimize pollutant
discharges.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
PF BIO-4 Water Quality Protection: A water quality
inspector will inspect the site after a rain event to
ensure that the stormwater BMPs are adequate.
Corrective action will be taken per Caltrans
Standard Specifications for any identified
deficiencies
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor, Water
quality inspector
PF BIO-5 Before commencing construction, a qualified
Caltrans-approved biologist will conduct an
education program for all project personnel.
Species to be covered will include but not be
limited to nesting birds. The program will also
include information on the protected species and
the habitats likely to be found within or adjacent
to the BSA, requirements of federal and state
laws pertaining to these species, identification of
measures implemented to conserve the species
and habitats within the study area, and
distribution of a fact sheet conveying this
information to the personnel who may enter the
BSA.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Caltrans-approved
biologist
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INTERCHANGE IMPROVEMENT PROJECT 41
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF BIO-6 Trees, shrubs, and native vegetation will be
preserved in place to the extent practicable.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
PF BIO-7 The work in San Francisco Bay will be limited to the smallest area possible to complete the
proposed construction activities.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
PF BIO-8 The names and qualifications of biological
monitors will be submitted for agency approval
prior to initiating construction activities. Caltransand agency-approved biologists will be onsite during work within San Francisco Bay, including
installation and removal of the cofferdam, or as
otherwise required by regulatory agency permits
and approvals.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Caltrans- and agencyapproved biologists INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 42
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF BIO-9 Before construction of the new outfall, a qualified Caltrans-approved biologist will conduct an
education program for all project personnel.
Species to be covered will include southern DPS
green sturgeon, Sacramento River winter-run
Chinook salmon, Central California Coast
steelhead, Central Valley steelhead, and longfin
smelt. The program will include information on
the protected species and the habitats likely to
be found within the BSA, requirements of federal
and state laws pertaining to these species,
identification of measures implemented to
conserve the species and habitats within the
study area, and distribution of a fact sheet
conveying this information to the personnel who
may enter the BSA.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Caltrans- and agencyapproved biologists INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 43
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF BIO-10 Avoid Spread and Introduction of Invasive Plants Caltrans will require the following practices to
minimize the potential to introduce or spread
invasive plant species:
▪ Prior to initial disturbance, invasive plant
locations will be identified, mapped, and
cleared. All vegetation material removed
will be adequately contained and
disposed of in a landfill or incinerated offsite, with caution exercised to prevent seed dispersal.
▪ Construction equipment shall be certified
as “weed-free” by Caltrans before
entering the construction site. If
necessary, onsite wash stations shall be
established for construction equipment
under the guidance of Caltrans in order to
avoid/minimize the spread of invasive
plants and/or seed within the construction
area.
After project fulfillment, areas where vegetation
is removed will be hydroseeded with native seed
from a local source or planted with landscape
species that occur on neighboring areas and
maintained per Caltrans standards to reduce the
risk of non-native and invasive species
establishment. Drought-tolerate and/or native
species should be planted in landscaped areas
to the extent practicable.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff PF BIO-11 Invasive Species: The landscaping included in the project will not use species listed on the
California list of invasive species.
Draft IS/EA
Section 1.0
and Section
2.3 Construction Contractor
AMM BIO-1 Avoid Regulated Trees and Replace Where Tree
Removal is Unavoidable - Caltrans will avoid the
removal of trees by minimizing the area of
disturbance where feasible. A Caltrans-approved
arborist will be retained to identify areas where
tree pruning activities can occur rather than tree
removal. The removed or damaged trees will be
replaced within the BSA to the extent possible.
Trees will be replaced at a 1:1 ratio with native
trees and will be irrigated for up to five years.
Draft IS/EA
Section 2.3
Construction Contractor
AMM BIO-2 Limit In-Water Work Area to Smallest Area
Possible - Work within the San Francisco Bay
and wetlands will be limited to the smallest area
possible to complete the proposed construction
activities. Additionally, along San Francisco Bay
and in the vicinity of the Radio Tower Pond and
the Model Yacht Basin, Caltrans will delineate
the Project limits with high-visibility fencing to
avoid ground disturbance adjacent to work and
access
Draft IS/EA
Section 2.3
Construction Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY AMM BIO-3 Nesting Bird Avoidance would avoid initiating vegetation clearing, ground-disturbance, and
other construction activities during the nesting
bird season (February 1 to September 30) to the
extent feasible. Caltrans will remove trees,
inactive nests, and other nesting substrate (e.g.,
trees, shrubs, structures, emergent vegetation)
and install nest exclusion measures (e.g., nonmono-filament netting, bird spikes, plastic sheeting, mesh, and fill cavities) during nonnesting season (October 1 to January 31) to the extent possible. Demolition of structures will be
conducted during the non-nesting season to the
extent feasible. If initiation of vegetation clearing,
ground-disturbance, or other construction
activities during the nesting bird season is
unavoidable, Caltrans will retain a qualified
biologist with experience conducting nesting bird
surveys. The biologist will conduct a preconstruction survey for active bird nests no more than three days prior to the start of construction
activities. The biologist will conduct a survey of
suitable nesting habitat within the BSA and an
immediately surrounding 250-foot area during
the nesting season to ensure that no active bird
nests (including those belonging to Alameda
song sparrow or saltmarsh common
yellowthroat) are present prior to vegetation
removal or project-related disturbance,
whichever occurs first.
If an active nest is identified, a no-disturbance
buffer will be established until the young are no
longer dependent on the nest for survival as
determined by the biologist. The no-disturbance
buffer is generally 250 feet for raptors and 50
Draft IS/EA
Section 2.3
Construction Contractor, CDFW,
Qualified biologist
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 46
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff feet for other birds. The no-disturbance buffer
shall be 100 feet around active nests of Alameda
song sparrow and saltmarsh common
yellowthroat.
If construction activities stop for a period of five
days or more during the nesting bird season
within a portion of the proposed project (beyond
250 feet of ongoing construction activities), a
subsequent nesting bird survey will be conducted
by a biologist no more than three days prior to
resumption of construction at that location.
Should work within the no-disturbance buffer of
an active nest be necessary, the biologist will
monitor work occurring within no-disturbance
buffer around an active nest to determine if the
nest or nesting behavior is affected by
construction activities. If the biologist determines
that nesting behavior is affected by construction
activities, then construction within the nodisturbance buffer will cease immediately and equipment and personnel will leave the buffer.
No-disturbance buffer modifications can be made
based on the professional opinion and
observations of the biologist, the degree of
background noise, and the physical situation of
the nest through coordination between the
biologist and CDFW.
AMM BIO-4 No In-Water Work During the Wet Season –
Caltrans would avoid conducting in-water work
during the typical wet season, between
November 1 and March 31.
Draft IS/EA
Section 2.3
Construction Contractor
INTERSTATE 80/ASHBY AVENUE
INTERCHANGE IMPROVEMENT PROJECT 47
APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff AMM BIO-5 Cofferdams Will Be Utilized to Create a Dry Work Area – Prior to conducting work within San
Francisco Bay Area, Caltrans will require a
cofferdam spanning planned in-water work areas
to create a dry work area and to avoid water
quality impacts and potential impacts to aquatic
habitat for wildlife. Cofferdams will be installed at
low tide to minimize the potential for fish
stranding in the work area. If installation of the
cofferdam is anticipated to take more than one
day, fish could potentially become stranded
within the partially installed cofferdam during
normal tidal cycles. A qualified Caltransapproved biologist would work with the contractor to install the cofferdam while
minimizing the potential for fish stranding. If
listed threatened or endangered species are
identified, the qualified Caltrans approved
biologist will consult with CDFW and/ or NMFS.
Draft IS/EA
Section 2.3
Construction Contractor
AMM BIO-6 No In-water Work in San Francisco Bay during
Fish Migration Periods (November and June) –
Caltrans will not conduct any in-water work within
the San Francisco Bay between November and
June to avoid potential impacts on protected fish
(steelhead, Chinook salmon, green sturgeon,
and longfin smelt) during peak migration periods
to suitable spawning habitat. No pile driving
activities will be conducted at night and any night
lighting used will be shielded to prevent fugitive
light from being cast into the San Francisco Bay
or natural vegetation outside of the Project limits
Draft IS/EA
Section 2.3
Construction Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX C AVOIDANCE, MINIMIZATION, AND/OR MITIGATION SUMMARY ID No. Task and Brief Description Source Project Timing Responsible Staff Compensatory
Mitigation
Measure BIO1
Caltrans will provide compensatory mitigation to
offset the unavoidable impacts to aquatic
resources (i.e., new outfall). Compensatory
mitigation would occur at a minimum one-to-one
ratio for permanent impacts (impact area to
compensation area) to assure no-net-loss of
waters of the U.S., and the final mitigation ratio
will ultimately be determined through Caltrans’
coordination with the USACE during the Section
404 permitting process in accordance with permit
requirements. Compensatory mitigation may
occur through one or a combination of: on- or offsite mitigation, the purchase of mitigation bank credits, and/or payment of an in-lieu fee. On- and
off-site mitigation options include preservation,
enhancement, and restoration of the values and
functions of wetlands and other waters of the
U.S.
Draft IS/EA
Section 2.3
Construction Contractor
INTERSTATE 80/ASHBY AVENUE
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APPENDIX D SPECIES LIST
Appendix D: Species List
APPENDIX D SPECIES LIST
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Sacramento Fish And Wildlife Office
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
Phone: (916) 414-6600 Fax: (916) 414-6713
In Reply Refer To:
Consultation Code: 08ESMF00-2020-SLI-1414
Event Code: 08ESMF00-2020-E-04485
Project Name: Ashby-80
July 3, 2021
Subject: List of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project To Whom It May Concern:
The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, under the jurisdiction of the U.S. Fish and Wildlife Service (Service) that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the Service under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.).
Please follow the link below to see if your proposed project has the potential to affect other species or their habitats under the jurisdiction of the National Marine Fisheries Service:
http://www.nwr.noaa.gov/protected_species/species_list/species_lists.html New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
07/03/2021 Event Code: 08ESMF00-2020-E-04485 2
The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat.
A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12.
If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at:
http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require development of an eagle conservation plan (http://www.fws.gov/windenergy/ eagle_guidance.html). Additionally, wind energy projects should follow the wind energy guidelines (http://www.fws.gov/windenergy/) for minimizing impacts to migratory birds and bats.
Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http:// www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/towers.htm; http:// www.towerkill.com; and http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/ comtow.html.
We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office.
07/03/2021 Event Code: 08ESMF00-2020-E-04485 3
Attachment(s):
▪ Official Species List
07/03/2021 Event Code: 08ESMF00-2020-E-04485 1
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action".
This species list is provided by:
Sacramento Fish And Wildlife Office
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
(916) 414-6600
This project's location is within the jurisdiction of multiple offices. Expect additional species list documents from the following office, and expect that the species and critical habitats in each document reflect only those that fall in the office's jurisdiction:
San Francisco Bay-Delta Fish And Wildlife
650 Capitol Mall
Suite 8-300
Sacramento, CA 95814
(916) 930-5603
07/03/2021 Event Code: 08ESMF00-2020-E-04485 2
Project Summary
Consultation Code: 08ESMF00-2020-SLI-1414
Event Code: 08ESMF00-2020-E-04485
Project Name: Ashby-80
Project Type: TRANSPORTATION
Project Description: road improvements
Project Location:
Approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/place/37.84826904431802N122.29865693725202W Counties: Alameda, CA
07/03/2021 Event Code: 08ESMF00-2020-E-04485 3
Endangered Species Act Species
There is a total of 12 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries1, as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions.
1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.
Mammals
NAME STATUS
Salt Marsh Harvest Mouse Reithrodontomys raviventris
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/613
Endangered
Birds
NAME STATUS
California Clapper Rail Rallus longirostris obsoletus
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/4240
Endangered
California Least Tern Sterna antillarum browni
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/8104
Endangered
Western Snowy Plover Charadrius nivosus nivosus
Population: Pacific Coast population DPS-U.S.A. (CA, OR, WA), Mexico (within 50 miles of Pacific coast)
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/8035
Threatened
07/03/2021 Event Code: 08ESMF00-2020-E-04485 4
Reptiles
NAME STATUS
Alameda Whipsnake (=striped Racer) Masticophis lateralis euryxanthus There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/5524
Threatened
Green Sea Turtle Chelonia mydas
Population: East Pacific DPS
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/6199
Threatened
Amphibians
NAME STATUS
California Red-legged Frog Rana draytonii
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/2891
Species survey guidelines:
https://ecos.fws.gov/ipac/guideline/survey/population/205/office/11420.pdf Threatened
Fishes
NAME STATUS
Delta Smelt Hypomesus transpacificus
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/321
Threatened
Tidewater Goby Eucyclogobius newberryi
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/57
Endangered
Insects
NAME STATUS
San Bruno Elfin Butterfly Callophrys mossii bayensis
There is proposed critical habitat for this species. The location of the critical habitat is not available.
Species profile: https://ecos.fws.gov/ecp/species/3394
Endangered
07/03/2021 Event Code: 08ESMF00-2020-E-04485 5
Flowering Plants
NAME STATUS
California Seablite Suaeda californica
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/6310
Endangered
Santa Cruz Tarplant Holocarpha macradenia
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/6832
Threatened
Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION.
07/03/2021 Event Code: 08ESMF00-2020-E-04485 6
United States Department of the Interior
FISH AND WILDLIFE SERVICE
San Francisco Bay-Delta Fish And Wildlife
650 Capitol Mall
Suite 8-300
Sacramento, CA 95814
Phone: (916) 930-5603 Fax: (916) 930-5654
http://[email protected]
In Reply Refer To: July 3, 2021
Consultation Code: 08FBDT00-2020-SLI-0132
Event Code: 08FBDT00-2020-E-00298
Project Name: Ashby-80
Subject: List of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project To Whom It May Concern:
The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.).
New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat.
07/03/2021 Event Code: 08FBDT00-2020-E-00298 2
A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12.
If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at:
http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require development of an eagle conservation plan (http://www.fws.gov/windenergy/ eagle_guidance.html). Additionally, wind energy projects should follow the wind energy guidelines (http://www.fws.gov/windenergy/) for minimizing impacts to migratory birds and bats.
Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http:// www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/towers.htm; http:// www.towerkill.com; and http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/ comtow.html.
We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office.
Attachment(s):
▪ Official Species List
07/03/2021 Event Code: 08FBDT00-2020-E-00298 1
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action".
This species list is provided by:
San Francisco Bay-Delta Fish And Wildlife
650 Capitol Mall
Suite 8-300
Sacramento, CA 95814
(916) 930-5603
This project's location is within the jurisdiction of multiple offices. Expect additional species list documents from the following office, and expect that the species and critical habitats in each document reflect only those that fall in the office's jurisdiction:
Sacramento Fish And Wildlife Office
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
(916) 414-6600
07/03/2021 Event Code: 08FBDT00-2020-E-00298 2
Project Summary
Consultation Code: 08FBDT00-2020-SLI-0132
Event Code: 08FBDT00-2020-E-00298
Project Name: Ashby-80
Project Type: TRANSPORTATION
Project Description: road improvements
Project Location:
Approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/place/37.84826904431802N122.29865693725202W Counties: Alameda, CA
07/03/2021 Event Code: 08FBDT00-2020-E-00298 3
Endangered Species Act Species
There is a total of 9 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries1, as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions.
1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.
Mammals
NAME STATUS
Salt Marsh Harvest Mouse Reithrodontomys raviventris Endangered No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/613
Birds
NAME STATUS
California Clapper Rail Rallus longirostris obsoletus
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/4240
Endangered
California Least Tern Sterna antillarum browni
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/8104
Endangered
Western Snowy Plover Charadrius nivosus nivosus
Population: Pacific Coast population DPS-U.S.A. (CA, OR, WA), Mexico (within 50 miles of Pacific coast)
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/8035
Threatened
07/03/2021 Event Code: 08FBDT00-2020-E-00298 4
Reptiles
NAME STATUS
Alameda Whipsnake (=striped Racer) Masticophis lateralis euryxanthus There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/5524
Threatened
Amphibians
NAME STATUS
California Red-legged Frog Rana draytonii
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/2891
Threatened
Fishes
NAME STATUS
Delta Smelt Hypomesus transpacificus
There is final critical habitat for this species. Your location is outside the critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/321
Threatened
Insects
NAME STATUS
San Bruno Elfin Butterfly Callophrys mossii bayensis
There is proposed critical habitat for this species. The location of the critical habitat is not available.
Species profile: https://ecos.fws.gov/ecp/species/3394
Endangered
Flowering Plants
NAME STATUS
California Seablite Suaeda californica
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/6310
Endangered
Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION.
National Marine Fisheries Service List
I-80/Ashby Avenue (SR-13)
Interchange Improvements Project NES
EA 04-256200
83 Project ID 04-1800-0225
Quad Name Oakland West
Quad Number 37122-G3
Date July 3, 2021
Source Nmfs_wcr_ca_species_list_december_2016.kmz
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) - X
SRWR Chinook Salmon ESU (E) - X
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) - X
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat - X
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
Quad Name Richmond
Quad Number 37122-H3
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) - X
SRWR Chinook Salmon ESU (E) - X
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) - X
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat - X
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
Quad Name Oakland East
Quad Number 37122-G2
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) -
SRWR Chinook Salmon ESU (E) -
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) -
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
Quad Name Hunters Point
Quad Number 37122-F3
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) -
SRWR Chinook Salmon ESU (E) -
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) -
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
Quad Name San Leandro
Quad Number 37122-F2
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) -
SRWR Chinook Salmon ESU (E) -
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) -
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
Quad Name San Francisco South
Quad Number 37122-F4
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) - X
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) -
SRWR Chinook Salmon ESU (E) -
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) -
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat - X
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat -
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) - X
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat - X
ESA Sea Turtles
East Pacific Green Sea Turtle (T) - X
Olive Ridley Sea Turtle (T/E) - X
Leatherback Sea Turtle (E) - X
North Pacific Loggerhead Sea Turtle (E) - X
ESA Whales
Blue Whale (E) - X
Fin Whale (E) - X
Humpback Whale (E) - X
Southern Resident Killer Whale (E) - X
North Pacific Right Whale (E) - XSei
Whale (E) - X
Sperm Whale (E) - X
ESA Pinnipeds
Guadalupe Fur Seal (T) - X
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans - X
MMPA Pinnipeds - X
Quad Name San Francisco North
Quad Number 37122-G4
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) - X
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) - X
SRWR Chinook Salmon ESU (E) - X
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) - X
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat - X
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat - X
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) - X
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) - X
Olive Ridley Sea Turtle (T/E) - X
Leatherback Sea Turtle (E) - X
North Pacific Loggerhead Sea Turtle (E) - X
ESA Whales
Blue Whale (E) - X
Fin Whale (E) - X
Humpback Whale (E) - X
Southern Resident Killer Whale (E) - X
North Pacific Right Whale (E) - XSei
Whale (E) - X
Sperm Whale (E) - X
ESA Pinnipeds
Guadalupe Fur Seal (T) - X
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans - X
MMPA Pinnipeds - X
Quad Name San Quentin
Quad Number 37122-H4
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) - X
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) - X
SRWR Chinook Salmon ESU (E) - X
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) - X
Eulachon (T) -
sDPS Green Sturgeon (T) - X
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat - X
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat - X
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat - X
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat - X
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH - X
Coastal Pelagics EFH - X
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds - X
uad Name Briones Valley
Quad Number 37122-H2
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) -
SRWR Chinook Salmon ESU (E) -
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) - X
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) -
Eulachon (T) -
sDPS Green Sturgeon (T) -
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat -
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat -
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat -
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Steller Sea Lion Critical Habitat -
Essential Fish Habitat
Coho EFH - X
Chinook Salmon EFH - X
Groundfish EFH -
Coastal Pelagics EFH -
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult the NMFS Long Beach office 562-980-4000
MMPA Cetaceans -
MMPA Pinnipeds -
California Natural Diversity Database Species List
I-80/Ashby Avenue (SR-13)
Interchange Improvements Project NES
EA 04-256200
84 Project ID 04-1800-0225
Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Query Criteria:
Quad<span style='color:Red'> IS </span>(San Francisco North (3712274)<span style='color:Red'> OR </span>San Francisco South (3712264)<span style='color:Red'> OR </span>Oakland East (3712272)<span style='color:Red'> OR </span>Oakland West (3712273)<span style='color:Red'> OR </span>Hunters Point (3712263)<span style='color:Red'> OR </span>San Leandro (3712262)<span style='color:Red'> OR </span>San Quentin (3712284)<span style='color:Red'> OR </span>Richmond (3712283)<span style='color:Red'> OR </span>Briones Valley (3712282))
Species Element Code Federal Status State Status Global Rank State Rank Rare Plant
Rank/CDFW
SSC or FP
Accipiter cooperii
Cooper's hawk
ABNKC12040 None None G5 S4 WL
Adela oplerella
Opler's longhorn moth
IILEE0G040 None None G2 S2
Allium peninsulare var. franciscanum
Franciscan onion
PMLIL021R1 None None G5T2 S2 1B.2
Ambystoma californiense
California tiger salamander
AAAAA01180 Threatened Threatened G2G3 S2S3 WL
Amorpha californica var. napensis
Napa false indigo
PDFAB08012 None None G4T2 S2 1B.2
Amsinckia lunaris
bent-flowered fiddleneck
PDBOR01070 None None G3 S3 1B.2
Antrozous pallidus
pallid bat
AMACC10010 None None G5 S3 SSC
Aquila chrysaetos
golden eagle
ABNKC22010 None None G5 S3 FP
Archoplites interruptus
Sacramento perch
AFCQB07010 None None G2G3 S1 SSC
Arctostaphylos franciscana
Franciscan manzanita
PDERI040J3 Endangered None G1 S1 1B.1
Arctostaphylos imbricata
San Bruno Mountain manzanita
PDERI040L0 None Endangered G1 S1 1B.1
Arctostaphylos montana ssp. ravenii
Presidio manzanita
PDERI040J2 Endangered Endangered G3T1 S1 1B.1
Arctostaphylos montaraensis
Montara manzanita
PDERI042W0 None None G1 S1 1B.2
Arctostaphylos pacifica
Pacific manzanita
PDERI040Z0 None Endangered G1 S1 1B.1
Arctostaphylos pallida
pallid manzanita
PDERI04110 Threatened Endangered G1 S1 1B.1
Ardea alba
great egret
ABNGA04040 None None G5 S4
Ardea herodias
great blue heron
ABNGA04010 None None G5 S4
Arenaria paludicola
marsh sandwort
PDCAR040L0 Endangered Endangered G1 S1 1B.1
Commercial Version -- Dated July, 3 2021 -- Biogeographic Data Branch Page 1 of 8 Report Printed on Saturday, July 3, 2021 Information Expires 1/3/2022 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Species
Asio flammeus
short-eared owl
Element Code
ABNSB13040
Federal Status
None
State Status
None
Global Rank
G5
State Rank
S3
Rare Plant
Rank/CDFW
SSC or FP
SSC
Astragalus tener var. tener
alkali milk-vetch
PDFAB0F8R1 None None G2T1 S1 1B.2
Athene cunicularia
burrowing owl
ABNSB10010 None None G4 S3 SSC
Banksula incredula
incredible harvestman
ILARA14100 None None G1 S1
Bombus caliginosus
obscure bumble bee
IIHYM24380 None None G4? S1S2
Bombus occidentalis
western bumble bee
IIHYM24250 None Candidate
Endangered
G2G3 S1
Branta hutchinsii leucopareia
cackling (=Aleutian Canada) goose
ABNJB05035 Delisted None G5T3 S3 WL
Caecidotea tomalensis
Tomales isopod
ICMAL01220 None None G2 S2S3
Callophrys mossii bayensis
San Bruno elfin butterfly
IILEPE2202 Endangered None G4T1 S1
Calochortus pulchellus
Mt. Diablo fairy-lantern
PMLIL0D160 None None G2 S2 1B.2
Calochortus tiburonensis
Tiburon mariposa-lily
PMLIL0D1C0 Threatened Threatened G1 S1 1B.1
Calystegia purpurata ssp. saxicola
coastal bluff morning-glory
PDCON040D2 None None G4T2T3 S2S3 1B.2
Carex comosa
bristly sedge
PMCYP032Y0 None None G5 S2 2B.1
Carex praticola
northern meadow sedge
PMCYP03B20 None None G5 S2 2B.2
Castilleja affinis var. neglecta
Tiburon paintbrush
PDSCR0D013 Endangered Threatened G4G5T1T2 S1S2 1B.2
Centromadia parryi ssp. congdonii
Congdon's tarplant
PDAST4R0P1 None None G3T1T2 S1S2 1B.1
Centromadia parryi ssp. parryi
pappose tarplant
PDAST4R0P2 None None G3T2 S2 1B.2
Charadrius alexandrinus nivosus
western snowy plover
ABNNB03031 Threatened None G3T3 S2S3 SSC
Chloropyron maritimum ssp. palustre
Point Reyes salty bird's-beak
PDSCR0J0C3 None None G4?T2 S2 1B.2
Commercial Version -- Dated July, 3 2021 -- Biogeographic Data Branch Report Printed on Saturday, July 3, 2021
Information Expires 1/3/2022
Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Chorizanthe cuspidata var. cuspidata
San Francisco Bay spineflower
PDPGN04081 None None G2T1 S1 1B.2
Chorizanthe robusta var. robusta
robust spineflower
PDPGN040Q2 Endangered None G2T1 S1 1B.1
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Rare Plant
Rank/CDFW
Species Element Code Federal Status State Status Global Rank State Rank SSC or FP Cicindela hirticollis gravida
sandy beach tiger beetle
IICOL02101 None None G5T2 S2
Cicuta maculata var. bolanderi
Bolander's water-hemlock
PDAPI0M051 None None G5T4T5 S2? 2B.1
Circus hudsonius
northern harrier
ABNKC11011 None None G5 S3 SSC
Cirsium andrewsii
Franciscan thistle
PDAST2E050 None None G3 S3 1B.2
Cirsium hydrophilum var. vaseyi
Mt. Tamalpais thistle
PDAST2E1G2 None None G2T1 S1 1B.2
Cirsium occidentale var. compactum
compact cobwebby thistle
PDAST2E1Z1 None None G3G4T2 S2 1B.2
Clarkia concinna ssp. automixa
Santa Clara red ribbons
PDONA050A1 None None G5?T3 S3 4.3
Clarkia franciscana
Presidio clarkia
PDONA050H0 Endangered Endangered G1 S1 1B.1
Coastal Terrace Prairie
Coastal Terrace Prairie
CTT41100CA None None G2 S2.1
Collinsia corymbosa
round-headed Chinese-houses
PDSCR0H060 None None G1 S1 1B.2
Collinsia multicolor
San Francisco collinsia
PDSCR0H0B0 None None G2 S2 1B.2
Corynorhinus townsendii
Townsend's big-eared bat
AMACC08010 None None G3G4 S2 SSC
Coturnicops noveboracensis
yellow rail
ABNME01010 None None G4 S1S2 SSC
Danaus plexippus pop. 1
monarch - California overwintering population
IILEPP2012 None None G4T2T3 S2S3
Dicamptodon ensatus
California giant salamander
AAAAH01020 None None G3 S2S3 SSC
Dipodomys heermanni berkeleyensis
Berkeley kangaroo rat
AMAFD03061 None None G3G4T1 S1
Dirca occidentalis
western leatherwood
PDTHY03010 None None G2 S2 1B.2
Dufourea stagei
Stage's dufourine bee
IIHYM22010 None None G1G2 S1
Egretta thula
snowy egret
ABNGA06030 None None G5 S4
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Elanus leucurus
white-tailed kite
ABNKC06010 None None G5 S3S4 FP
Emys marmorata
western pond turtle
ARAAD02030 None None G3G4 S3 SSC
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Rare Plant
Rank/CDFW
Species Element Code Federal Status State Status Global Rank State Rank SSC or FP Enhydra lutris nereis
southern sea otter
AMAJF09012 Threatened None G4T2 S2 FP
Erethizon dorsatum
North American porcupine
AMAFJ01010 None None G5 S3
Eriogonum luteolum var. caninum
Tiburon buckwheat
PDPGN083S1 None None G5T2 S2 1B.2
Eryngium jepsonii
Jepson's coyote-thistle
PDAPI0Z130 None None G2 S2 1B.2
Eucyclogobius newberryi
tidewater goby
AFCQN04010 Endangered None G3 S3 SSC
Eumetopias jubatus
Steller (=northern) sea-lion
AMAJC03010 Delisted None G3 S2
Euphydryas editha bayensis
Bay checkerspot butterfly
IILEPK4055 Threatened None G5T1 S1
Extriplex joaquinana
San Joaquin spearscale
PDCHE041F3 None None G2 S2 1B.2
Falco peregrinus anatum
American peregrine falcon
ABNKD06071 Delisted Delisted G4T4 S3S4 FP
Fissidens pauperculus
minute pocket moss
NBMUS2W0U0 None None G3? S2 1B.2
Fritillaria liliacea
fragrant fritillary
PMLIL0V0C0 None None G2 S2 1B.2
Geothlypis trichas sinuosa
saltmarsh common yellowthroat
ABPBX1201A None None G5T3 S3 SSC
Gilia capitata ssp. chamissonis
blue coast gilia
PDPLM040B3 None None G5T2 S2 1B.1
Gilia millefoliata
dark-eyed gilia
PDPLM04130 None None G2 S2 1B.2
Grindelia hirsutula var. maritima
San Francisco gumplant
PDAST470D3 None None G5T1Q S1 3.2
Haliaeetus leucocephalus
bald eagle
ABNKC10010 Delisted Endangered G5 S3 FP
Helianthella castanea
Diablo helianthella
PDAST4M020 None None G2 S2 1B.2
Helminthoglypta nickliniana bridgesi
Bridges' coast range shoulderband
IMGASC2362 None None G3T1 S1S2
Hemizonia congesta ssp. congesta
congested-headed hayfield tarplant
PDAST4R065 None None G5T2 S2 1B.2
Hesperevax sparsiflora var. brevifolia
short-leaved evax
PDASTE5011 None None G4T3 S2 1B.2
Hesperolinon congestum
Marin western flax
PDLIN01060 Threatened Threatened G1 S1 1B.1
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Rare Plant
Rank/CDFW
Species Element Code Federal Status State Status Global Rank State Rank SSC or FP Heteranthera dubia
water star-grass
PMPON03010 None None G5 S2 2B.2
Hoita strobilina
Loma Prieta hoita
PDFAB5Z030 None None G2? S2? 1B.1
Holocarpha macradenia
Santa Cruz tarplant
PDAST4X020 Threatened Endangered G1 S1 1B.1
Horkelia cuneata var. sericea
Kellogg's horkelia
PDROS0W043 None None G4T1? S1? 1B.1
Horkelia marinensis
Point Reyes horkelia
PDROS0W0B0 None None G2 S2 1B.2
Hydroporus leechi
Leech's skyline diving beetle
IICOL55040 None None G1? S1?
Hydroprogne caspia
Caspian tern
ABNNM08020 None None G5 S4
Hypogymnia schizidiata
island tube lichen
NLT0032640 None None G2G3 S2 1B.3
Ischnura gemina
San Francisco forktail damselfly
IIODO72010 None None G2 S2
Isocoma arguta
Carquinez goldenbush
PDAST57050 None None G1 S1 1B.1
Lasionycteris noctivagans
silver-haired bat
AMACC02010 None None G5 S3S4
Lasiurus blossevillii
western red bat
AMACC05060 None None G5 S3 SSC
Lasiurus cinereus
hoary bat
AMACC05030 None None G5 S4
Lasthenia conjugens
Contra Costa goldfields
PDAST5L040 Endangered None G1 S1 1B.1
Laterallus jamaicensis coturniculus
California black rail
ABNME03041 None Threatened G3G4T1 S1 FP
Layia carnosa
beach layia
PDAST5N010 Endangered Endangered G2 S2 1B.1
Leptosiphon rosaceus
rose leptosiphon
PDPLM09180 None None G1 S1 1B.1
Lessingia germanorum
San Francisco lessingia
PDAST5S010 Endangered Endangered G1 S1 1B.1
Lichnanthe ursina
bumblebee scarab beetle
IICOL67020 None None G2 S2
Malacothamnus arcuatus PDMAL0Q0E0 None None G2Q S2 1B.2 Commercial Version -- Dated July, 3 2021 -- Biogeographic Data Branch Page 7 of 8 Report Printed on Saturday, July 3, 2021 Information Expires 1/3/2022 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
arcuate bush-mallow
Masticophis lateralis euryxanthus
Alameda whipsnake
ARADB21031 Threatened Threatened G4T2 S2
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Species
Meconella oregana
Oregon meconella
Element Code
PDPAP0G030
Federal Status
None
State Status
None
Global Rank
G2G3
State Rank
S2
Rare Plant
Rank/CDFW
SSC or FP
1B.1
Melospiza melodia maxillaris
Suisun song sparrow
ABPBXA301K None None G5T3 S3 SSC
Melospiza melodia pusillula
Alameda song sparrow
ABPBXA301S None None G5T2? S2S3 SSC
Melospiza melodia samuelis
San Pablo song sparrow
ABPBXA301W None None G5T2 S2 SSC
Microcina leei
Lee's micro-blind harvestman
ILARA47040 None None G1 S1
Microcina tiburona
Tiburon micro-blind harvestman
ILARA47060 None None G1 S1
Microseris paludosa
marsh microseris
PDAST6E0D0 None None G2 S2 1B.2
Microtus californicus sanpabloensis
San Pablo vole
AMAFF11034 None None G5T1T2 S1S2 SSC
Monardella sinuata ssp. nigrescens
northern curly-leaved monardella
PDLAM18162 None None G3T2 S2 1B.2
Monolopia gracilens
woodland woollythreads
PDAST6G010 None None G3 S3 1B.2
Mylopharodon conocephalus
hardhead
AFCJB25010 None None G3 S3 SSC
Neotoma fuscipes annectens
San Francisco dusky-footed woodrat
AMAFF08082 None None G5T2T3 S2S3 SSC
Northern Coastal Salt Marsh
Northern Coastal Salt Marsh
CTT52110CA None None G3 S3.2
Northern Maritime Chaparral
Northern Maritime Chaparral
CTT37C10CA None None G1 S1.2
Nycticorax nycticorax
black-crowned night heron
ABNGA11010 None None G5 S4
Nyctinomops macrotis
big free-tailed bat
AMACD04020 None None G5 S3 SSC
Pentachaeta bellidiflora
white-rayed pentachaeta
PDAST6X030 Endangered Endangered G1 S1 1B.1
Phalacrocorax auritus
double-crested cormorant
ABNFD01020 None None G5 S4 WL
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Plagiobothrys chorisianus var. chorisianus
Choris' popcornflower
PDBOR0V061 None None G3T1Q S1 1B.2
Plagiobothrys diffusus
San Francisco popcornflower
PDBOR0V080 None Endangered G1Q S1 1B.1
Plagiobothrys glaber
hairless popcornflower
PDBOR0V0B0 None None GH SH 1A
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Rare Plant
Rank/CDFW
Species Element Code Federal Status State Status Global Rank State Rank SSC or FP Plebejus icarioides missionensis
Mission blue butterfly
IILEPG801A Endangered None G5T1 S1
Polemonium carneum
Oregon polemonium
PDPLM0E050 None None G3G4 S2 2B.2
Polygonum marinense
Marin knotweed
PDPGN0L1C0 None None G2Q S2 3.1
Rallus obsoletus obsoletus
California Ridgway's rail
ABNME05011 Endangered Endangered G5T1 S1 FP
Rana boylii
foothill yellow-legged frog
AAABH01050 None Candidate
Threatened
G3 S3 SSC
Rana draytonii
California red-legged frog
AAABH01022 Threatened None G2G3 S2S3 SSC
Reithrodontomys raviventris
salt-marsh harvest mouse
AMAFF02040 Endangered Endangered G1G2 S1S2 FP
Riparia riparia
bank swallow
ABPAU08010 None Threatened G5 S2
Rynchops niger
black skimmer
ABNNM14010 None None G5 S2 SSC
Sanicula maritima
adobe sanicle
PDAPI1Z0D0 None Rare G2 S2 1B.1
Scapanus latimanus insularis
Angel Island mole
AMABB02032 None None G5THQ SH
Scapanus latimanus parvus
Alameda Island mole
AMABB02031 None None G5THQ SH SSC
Senecio aphanactis
chaparral ragwort
PDAST8H060 None None G3 S2 2B.2
Serpentine Bunchgrass
Serpentine Bunchgrass
CTT42130CA None None G2 S2.2
Silene scouleri ssp. scouleri
Scouler's catchfly
PDCAR0U1MC None None G5T4T5 S2S3 2B.2
Silene verecunda ssp. verecunda
San Francisco campion
PDCAR0U213 None None G5T1 S1 1B.2
Sorex vagrans halicoetes
salt-marsh wandering shrew
AMABA01071 None None G5T1 S1 SSC
Spergularia macrotheca var. longistyla
long-styled sand-spurrey
PDCAR0W062 None None G5T2 S2 1B.2
Speyeria callippe callippe
callippe silverspot butterfly
IILEPJ6091 Endangered None G5T1 S1
Spirinchus thaleichthys
longfin smelt
AFCHB03010 Candidate Threatened G5 S1
Stebbinsoseris decipiens
Santa Cruz microseris
PDAST6E050 None None G2 S2 1B.2
Commercial Version -- Dated July, 3 2021 -- Biogeographic Data Branch Page 11 of 8 Report Printed on Saturday, July 3, 2021 Information Expires 1/3/2022 Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
Rare Plant
Rank/CDFW
Species Element Code Federal Status State Status Global Rank State Rank SSC or FP Sternula antillarum browni
California least tern
ABNNM08103 Endangered Endangered G4T2T3Q S2 FP
Streptanthus albidus ssp. peramoenus
most beautiful jewelflower
PDBRA2G012 None None G2T2 S2 1B.2
Streptanthus glandulosus ssp. niger
Tiburon jewelflower
PDBRA2G0T0 Endangered Endangered G4T1 S1 1B.1
Stuckenia filiformis ssp. alpina
slender-leaved pondweed
PMPOT03091 None None G5T5 S2S3 2B.2
Suaeda californica
California seablite
PDCHE0P020 Endangered None G1 S1 1B.1
Symphyotrichum lentum
Suisun Marsh aster
PDASTE8470 None None G2 S2 1B.2
Taxidea taxus
American badger
AMAJF04010 None None G5 S3 SSC
Thaleichthys pacificus
eulachon
AFCHB04010 Threatened None G5 S3
Thamnophis sirtalis tetrataenia
San Francisco gartersnake
ARADB3613B Endangered Endangered G5T2Q S2 FP
Trachusa gummifera
San Francisco Bay Area leaf-cutter bee
IIHYM80010 None None G1 S1
Trifolium amoenum
two-fork clover
PDFAB40040 Endangered None G1 S1 1B.1
Trifolium hydrophilum
saline clover
PDFAB400R5 None None G2 S2 1B.2
Triphysaria floribunda
San Francisco owl's-clover
PDSCR2T010 None None G2? S2? 1B.2
Triquetrella californica
coastal triquetrella
NBMUS7S010 None None G2 S2 1B.2
Tryonia imitator
mimic tryonia (=California brackishwater snail)
IMGASJ7040 None None G2 S2
Valley Needlegrass Grassland
Valley Needlegrass Grassland
CTT42110CA None None G3 S3.1
Vespericola marinensis
Marin hesperian
IMGASA4140 None None G2 S2
Viburnum ellipticum
oval-leaved viburnum
PDCPR07080 None None G4G5 S3? 2B.3
Xanthocephalus xanthocephalus
yellow-headed blackbird
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 Zapus trinotatus orarius
Point Reyes jumping mouse
Selected Elements by Scientific Name
California Department of Fish and Wildlife
California Natural Diversity Database
ABPBXB3010 None
None
G5
S3
SSC
AMAFH01031 None
None
G5T1T3Q
S1S3
SSC
Record Count: 164
Information Expires 1/3/2022 Report Printed on Saturday, July 3, 2021 California Native Plant Society Inventory of Rareand
Endangered Plants
I-80/Ashby Avenue (SR-13) EA 04-256200
Interchange Improvements Project NES 85 Project ID 04-1800-0225 *The database uI
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construction. View updates and changes made since May 2019 here.
Plant List
48 matches found. Click on scientific name for details
Search Criteria
Found in Quads 3712273, 3712283, 3712282, 3712272 3712262 and 3712263; Modify Search Criteria Export to Excel Modify Columns Modify Sort Display Photos Scientific Name Common Name Family Lifeform Blooming
Period
CA Rare
Plant Rank
State
Rank
Global
Rank
Amsinckia lunaris bent-flowered
fiddleneck
Boraginaceae annual herb Mar-Jun 1B.2 S3 G3
Androsace elongata ssp.
acuta
California
androsace
Primulaceae annual herb Mar-Jun 4.2 S3S4 G5?T3T4
Arctostaphylos pallida pallid manzanita Ericaceae perennial evergreen shrub Dec-Mar 1B.1 S1 G1
Astragalus tener var.
tener alkali milk-vetch Fabaceae annual herb Mar-Jun 1B.2 S1 G2T1 Balsamorhiza macrolepis big-scale
balsamroot Asteraceae perennial herb Mar-Jun 1B.2 S2 G2 Calochortus pulchellus Mt. Diablo fairylantern Liliaceae perennial bulbiferous herb Apr-Jun 1B.2 S2 G2
Calochortus umbellatus Oakland star-tulip Liliaceae perennial bulbiferous herb Mar-May 4.2 S3? G3?
Calystegia purpurata ssp.
saxicola
coastal bluff
morning-glory
Convolvulaceae perennial herb (Mar)AprSep 1B.2 S2S3 G4T2T3 Castilleja ambigua var.
ambigua
johnny-nip Orobanchaceae annual herb
(hemiparasitic) Mar-Aug 4.2 S3S4 G4T4
Centromadia parryi ssp.
congdonii
Congdon's tarplant Asteraceae annual herb MayOct(Nov) 1B.1 S1S2 G3T1T2 Chloropyron maritimum ssp. palustre Point Reyes bird's-beak Orobanchaceae annual herb (hemipa
rasitic) Jun-Oct
2 1B.2
S2
G4?T
Chorizanthe cuspidata
var. cuspidata
Chorizanthe robusta var.
San Francisco Bay
spineflower Polygonaceae annual herb AprJul(Aug) 1B.2 S1 G2T1 robusta robust spineflower Polygonaceae annual herb Apr-Sep 1B.1 S1 G2T1 Cirsium andrewsii Franciscan thistle Asteraceae perennial herb Mar-Jul 1B.2 S3 G3 Clarkia concinna ssp.
automixa
Santa Clara red
ribbons Onagraceae annual herb (Apr)MayJun(Jul) 4.3 S3 G5? T3 Presidio clarkia Onagraceae annual herb May-Jul 1B.1 S1 G1
Clarkia franciscana
Dirca occidentalis western
leatherwood
Thymelaeaceae perennial deciduous
shrub
JanMar(Apr) 1B.2 S2 G2
Eriogonum luteolum var.
caninum Tiburon buckwheat Polygonaceae annual herb May-Sep 1B.2 S2 G5T2 Eryngium jepsonii Jepson's coyote
thistle Apiaceae perennial herb Apr-Aug 1B.2 S2? G2?
Extriplex joaquinana San Joaquin
spearscale Chenopodiaceae annual herb Apr-Oct 1B.2 S2 G2 Fissidens pauperculus minute pocket
moss
Fissidentaceae moss 1B.2 S2 G3?
Fritillaria liliacea fragrant fritillary Liliaceae perennial bulbiferous herb Feb-Apr 1B.2 S2 G2
Gilia capitata ssp.
chamissonis
blue coast gilia Polemoniaceae annual herb Apr-Jul 1B.1 S2 G5T2 Gilia millefoliata dark-eyed gilia Polemoniaceae annual herb Apr-Jul 1B.2 S2 G2 Helianthella castanea Diablo helianthella Asteraceae perennial herb Mar-Jun May1B.2 S2 G2
Hoita strobilina Loma Prieta hoita Fabaceae perennial herb Jul(AugOct) 1B.1 S2? G2?
Holocarpha macradenia Santa Cruz
tarplant Asteraceae annual herb Jun-Oct 1B.1 S1 G1
Horkelia cuneata var.
sericea Kellogg's horkelia Rosaceae perennial herb Apr-Sep 1B.1 S1? G4T1? Iris longipetala coast iris Iridaceae perennial
rhizomatous herb Mar-May 4.2 S3 G3
Lasthenia conjugens
Contra Costa
goldfields Asteraceae annual herb Mar-Jun 1B.1 S1 G1
Lathyrus jepsonii var.
jepsonii Delta tule pea
Fabaceae perennial herb
MayJul(AugSep)
1B.2 S2 G5T2
Polemoniaceae annual herb Apr-Jul 4.2 S4? G4?
Leptosiphon acicularis bristly leptosiphon Papaveraceae annual herb Mar-Apr 1B.1 S2 G2G3 Meconella oregana Oregon meconella
Asteraceae annual herb Mar-May 3.2 S3S4 G3G4
Micropus amphibolus Mt. Diablo
cottonweed
Monardella antonina ssp.
antonina
San Antonio Hills
monardella Lamiaceae perennial
rhizomatous herb Jun-Aug 3 S1S3 G4T1T3Q
Monolopia gracilens woodland
woolythreads
Asteraceae annual herb (Feb)MarJul 1B.2 S3 G3
Plagiobothrys chorisianus
var. chorisianus
Choris'
popcornflower Boraginaceae annual herb Mar-Jun 1B.2 S1 G3T1Q Plagiobothrys diffusus San Francisco
popcornflower Boraginaceae annual herb Mar-Jun 1B.1 S1 G1Q Clarkia franciscana
Polygonum marinense Marin knotweed Polygonaceae annual herb (Apr)MayAug(Oct) 3.1 S2 G2Q Ranunculus lobbii Lobb's aquatic
buttercup
Ranunculaceae annual herb
(aquatic) Feb-May 4.2 S3 G4
Sanicula maritima adobe sanicle Apiaceae perennial herb Feb-May 1B.1 S2 G2 Spergularia macrotheca
var. longistyla
long-styled sandspurrey
Caryophyllaceae perennial herb FebMay(Jun) 1B.2 S2 G5T2 most beautiful Brassicaceae annual herb (Mar)Apr- 1B.2 S2 G2T2 Streptanthus albidus ssp.
peramoenus
jewelflower Sep(Oct)
Stuckenia filiformis ssp.
alpina
slender-leaved
pondweed Potamogetonaceae
perennial
rhizomatous herb
(aquatic)
May-Jul 2B.2 S2S3 G5T5
Suaeda californica California seablite Chenopodiaceae perennial evergreen shrub
Jul-Oct 1B.1 S1 G1
Trifolium hydrophilum saline clover Fabaceae annual herb Apr-Jun 1B.2 S2 G2
Triphysaria floribunda San Francisco
owl's-clover Orobanchaceae annual herb
Apr-Jun 1B.2 S2? G2?
Viburnum ellipticum oval-leaved
viburnum Adoxaceae perennial deciduous
shrub
May-Jun 2B.3 S3? G4G5
Suggested Citation
California Native Plant Society, Rare Plant Program. 2020. Inventory of Rare and Endangered Plants of California (online edition, v8-03 0.39). Website http://www.rareplants.cnps.org [accessed 27 May 2020].
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Special-status Plant Species
I-80/Ashby Avenue (SR-13)
Interchange Improvements Project NES
EA 04-256200
86 Project ID 04-1800-0225
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Special-status Plant Species
Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Allium peninsulare var.
franciscanum
Franciscan onion -/-/1B.2
Broadleafed upland forest, chaparral,
cismontane woodland. Openings in forest or
woodland or in chaparral. 30-735 m
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Amorpha californica var. napensis
Napa false indigo -/-/1B.2
Cismontane woodland, valley and foothill
grassland, coastal bluff scrub. 3-795 m.
Not likely to occur. Suitable
cismontane woodland and coastal
bluff scrub habitat are absent in
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed.
Additionally, the BSA is outside of
the known range for this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Amsinckia lunaris
bent-flowered fiddleneck -/-/1B.2
Cismontane woodland, valley and foothill
grassland, coastal bluff scrub. 3-795 meters
above mean sea level (amsl). Blooms May-June.
Not likely to occur. Suitable
cismontane woodland and coastal
bluff scrub habitat are absent in
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. One
CNDDB occurrence record is
known from within two miles of
the BSA observed in 1883,
centered on downtown Oakland.
Area is developed and no habitat
remains.
N/A
Arctostaphylos franciscana
Franciscan manzanita FE/-/1B.1
Chaparral. Serpentine outcrops in chaparral. 30-
215 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
1 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Arctostaphylos imbricata
San Bruno Mountain
manzanita -/SE/1B.1
Chaparral, coastal scrub. Mostly known from a
few sandstone outcrops in chaparral. 275-305
m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Arctostaphylos montana ssp.
ravenii
Presidio manzanita
FE/SE/1B.1
Chaparral, coastal prairie, coastal scrub. Open,
rocky serpentine slopes. 20-215 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Arctostaphylos montaraensis
Montara manzanita -/-/1B.2
Chaparral, coastal scrub. Slopes and ridges. 270-
460 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Arctostaphylos pacifica
Pacific manzanita -/SE/1B.1
Coastal scrub, chaparral. 320 m. Not likely to occur. Suitable habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Arctostaphylos pallida
pallid manzanita FT/SE/1B.1
Broadleafed upland forest, closed-cone
coniferous forest, chaparral, cismontane
woodland, coastal scrub. Grows on uplifted
marine terraces on siliceous shale or thin chert.
May require fire. 180-460 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Arenaria paludicola
marsh sandwort FE/SE/1B.1
Marshes and swamps. Growing up through
dense mats of Typha, Juncus, Scirpus, etc. in
freshwater marsh. Sandy soil. 3-170 m.
Not likely to occur. Marsh habitat
within the BSA is estuarine, and
not suitable for this species. No
CNDDB occurrence records are
known from within two miles of
the BSA.
No effect.
2 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Astragalus tener var. Tener
alkali milk-vetch -/-/1B.2
Alkali playa, valley and foothill grassland, vernal
pools. Low ground, alkali flats, and flooded
lands; in annual grassland or in playas or vernal
pools. 1-170 meters (amsl). Blooms MarchJune.
Not likely to occur. Suitable
vernal pool habitat is absent in
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. One
CNDDB occurrence record is
known from within two miles of
the BSA observed in 1882. Area is
fully developed and no habitat
remains.
N/A
Calochortus pulchellus
Mt. Diablo fairy-lantern -/-/1B.2
Chaparral, cismontane woodland, riparian
woodland, valley and foothill grassland. On
wooded and brushy slopes. 30-915 meters.
Blooms April through June.
Not likely to occur. Suitable
chaparral and cismontane and
riparian woodland habitats are
absent from the BSA and the
limited grassland cover within the
BSA is relatively fragmented and
disturbed. Additionally, the BSA is
outside of the known range for
this species. No CNDDB
occurrence records are known
from within two miles of the BSA.
N/A
Calochortus tiburonensis
Tiburon mariposa-lily FT/ST/1B.2 Valley and foothill grassland. On open, rocky, slopes in serpentine grassland. 50-150 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
Additionally, the BSA is outside of
the known range for this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Calystegia purpurata ssp. saxicola
coastal bluff morning-glory -/-/1B.2
Coastal dunes, coastal scrub, coastal bluff scrub,
north coast coniferous forest. 10-105 meters.
Blooms March through September.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
3 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Carex comosa
bristly sedge -/-/2B.1
Marshes and swamps, coastal prairie, valley and
foothill grassland. Lake margins, wet places; site
below sea level is on a Delta island. -5-1,620
meters. Blooms May through September.
Not likely to occur. Marsh habitat
within the BSA is estuarine, and
not suitable for this species. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Carex praticola
northern meadow sedge -/-/2B.2
Meadows and seeps. Moist to wet meadows.
15-3200 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Castilleja affinis var. neglecta
Tiburon paintbrush FE/ST/1B.2
Valley and foothill grassland. Rocky serpentine
sites. 120-400 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
Centromadia parryi ssp.
congdonii
Congdon’s tarplant
-/-/1B.1
Valley and foothill grassland. Alkaline soils,
sometimes described as heavy white clay. 0-230
meters (amsl). Blooms May-October.
Not likely to occur. Marginally
suitable grassland habitat is
present from the BSA, yet the
limited grassland cover within the
BSA is relatively fragmented and
disturbed. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
Centromadia parryi ssp. parryi
pappose tarplant -/-/1B.2
Chaparral, coastal prairie, meadows and seeps,
coastal salt marsh, valley and foothill grassland.
Vernally mesic, often alkaline sites. 1-500 m.
Not likely to occur. Marginally
suitable grassland and salt marsh
habitat is present from the BSA,
yet the areas within the BSA is
relatively fragmented and
disturbed. Additionally, the BSA is
outside of the known range for
this species. No CNDDB
occurrence records are known
from within two miles of the BSA.
N/A
4 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Chloropyron maritimum ssp.
palustre
Point Reyes salty bird'sbeak
-/-/1B.2
Coastal salt marsh. Usually in coastal salt marsh
with Salicornia, Distichlis, Jaumea, Spartina, etc.
0-115 meters. Blooms June through October.
Not likely to occur. Small patches
of coastal salt marsh habitat
occurs on the margins of the
Radio Tower Pond and Model
Yacht Basin. The isolated and
previously disturbed nature of
these areas make occurrence of
this species unlikely. Two possibly
extirpated CNDDB occurrences
are known from within two miles
of the BSA, observed in 1880 and
1906.
N/A
Chorizanthe cuspidata var.
cuspidata
San Francisco Bay spineflower
-/-/1B.2
Coastal bluff scrub, coastal dunes, coastal
prairie, coastal scrub. Closely related to C.
pungens. Sandy soil on terraces and slopes. 3-
215 meters. Blooms April through August.
Not likely to occur. Suitable
habitat is absent from the BSA.
One extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1881.
N/A
Chorizanthe robusta var. robusta
robust spineflower FE/-/1B.1
Cismontane woodland, coastal dunes, coastal
scrub, chaparral. Sandy terraces and bluffs or in
loose sand. 9-245 meters. Blooms April through
September.
Not likely to occur. Suitable
habitat is absent from the BSA.
One extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1881.
No effect.
Cicuta maculate var. bolanderi
Bolander's waterhemlock -/-/2B.1 Marshes and swamps, fresh or brackish water. 0-200 meters. Blooms July through September.
Not likely to occur. Small patches
of brackish marsh habitat occurs
on the margins of the Radio
Tower Pond and Model Yacht
Basin. The isolated and previously
disturbed nature of these areas
make occurrence of this species
unlikely. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
5 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Cirsium andrewsii
Franciscan thistle -/-/1B.2
Coastal bluff scrub, broadleaved upland forest,
coastal scrub, coastal prairie. Sometimes
serpentine seeps. 0-150 meters. Blooms March
through July.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA
N/A
Cirsium hydrophilum var. vaseyi
Mt. Tamalpais thistle -/-/1B.2
Broadleafed upland forest, chaparral, meadows
and seeps. Serpentine seeps and streams in
chaparral and woodland. 180-610 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
Additionally, the BSA is outside of
the known range for this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Cirsium occidentale var.
compactum
compact cobwebby thistle
-/-/1B.2
Chaparral, coastal dunes, coastal prairie, coastal
scrub. On dunes and on clay in chaparral; also in
grassland. 5-245 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
Additionally, the BSA is outside of
the known range for this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Clarkia concinna ssp. automixa
Santa Clara red ribbons - / - /4.3
Cismontane woodland, chaparral. On slopes
and near drainages. 90-1500 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Clarkia franciscana
Presidio clarkia FE/SE/1B.1
Coastal scrub, valley and foothill grassland.
Serpentine outcrops in grassland or scrub. 20-
305 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Collinsia corymbosa
round-headed Chinesehouses -/-/1B.2
Coastal dunes. 0-30 m. Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
6 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Collinsia multicolor
San Francisco collinsia -/-/1B.2
Closed-cone coniferous forest, coastal scrub. On
decomposed shale (mudstone) mixed with
humus; sometimes on serpentine. 10-275 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Dirca occidentalis
western leatherwood -/-/1B.2
Broadleafed upland forest, chaparral, closedcone coniferous forest, cismontane woodland, north coast coniferous forest, riparian forest,
riparian woodland. On brushy slopes, mesic
sites; mostly in mixed evergreen & foothill
woodland communities. 20-640 meters (amsl).
Blooms January-March.
Not likely to occur. Suitable
chaparral and woodland habitat
are absent from the BSA. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Eriogonum luteolum var. caninum
Tiburon buckwheat -/-/1B.2
Chaparral, valley and foothill grassland,
cismontane woodland, coastal prairie.
Serpentine soils; sandy to gravelly sites. 60-640
m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Eryngium jepsonii
Jepson's coyote-thistle -/-/1B.2 Vernal pools, valley and foothill grassland. Clay. 3-305 meters (amsl). Blooms April-August.
Not likely to occur. Suitable
vernal pool habitat is absent from
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Extriplex joaquinana
San Joaquin spearscale -/-/1B.2
Chenopod scrub, alkali meadow, playas, valley
and foothill grassland. In seasonal alkali
wetlands or alkali sink scrub with saltgrass
(Distichlis spicata), alkali heath (Frankenia), and
others. 1-835 meters (amsl). Blooms AprilOctober.
Not likely to occur. Suitable
chenopod scrub and alkali
meadow habitat are absent from
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. One
possibly extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1929.
N/A
7 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Fissidens pauperculus
minute pocket moss -/-/1B.2
North coast coniferous forest. Moss growing on
damp soil along the coast. In dry streambeds
and on stream banks. 30-1025 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Fritillaria liliacea
fragrant fritillary -/-/1B.2
In cismontane woodland, coastal prairie, coastal
scrub, and valley and foothill grassland. Often
associated with serpentine soils. 3-410 meters
(amsl). Blooms February-April.
Not likely to occur. Suitable
coastal prairie, scrub, and
woodland habitat are absent from
the BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Gilia capitate ssp. chamissonis
blue coast gilia -/-/1B.1 Coastal dunes, coastal scrub. 3-200 meters.
Blooms April through July.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA
N/A
Gilia millefoliata
dark-eyed gilia -/-/1B.2 Coastal dunes. 1-60 meters. Blooms April through July.
Not likely to occur. Suitable
habitat is absent from the BSA.
One extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1863.
N/A
Grindelia hirsutula var. maritima
San Francisco gumplant - / - /3.2
Coastal scrub, coastal bluff scrub, valley and
foothill grassland. Sandy or serpentine slopes,
sea bluffs. 15-305 m.
Not likely to occur. Suitable
coastal prairie and coastal bluff
scrub habitat are absent from the
BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
8 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Helianthella castanea
Diablo helianthella -/-/1B.2
Broadleafed upland forest, chaparral,
cismontane woodland, coastal scrub, riparian
woodland, valley and foothill grassland. Usually
in chaparral/oak woodland interface in rocky,
azonal soils. Often in partial shade. 45-1070
meters (amsl). Blooms March-June.
Not likely to occur. Suitable
chaparral and cismontane
woodland habitat are absent from
the BSA. Limited grassland cover
within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Hemizonia congesta ssp.
congesta
congested-headed hayfield
tarplant
-/-/1B.2
Valley and foothill grassland. Grassy valleys and
hills, often in fallow fields; sometimes along
roadsides. 5-520 m.
Not likely to occur. Limited
grassland cover within the BSA is
relatively fragmented and
disturbed. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
Hesperevax sparsiflora var.
brevifolia
short-leaved evax
-/-/1B.2
Coastal bluff scrub, coastal dunes, coastal
prairie. Sandy bluffs and flats. 0-640 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Hesperolinon congestum
Marin western flax FT/ST/1B.1
Chaparral, valley and foothill grassland. In
serpentine barrens and in serpentine grassland
and chaparral. 60-400 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Heteranthera dubia
water star-grass -/-/2B.2
Marshes and swamps. Alkaline, still or slowmoving water. Requires a pH of 7 or higher, usually in slightly eutrophic waters. 15-1,510
meters. Blooms July through October.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
9 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Hoita strobilina
Loma Prieta hoita -/-/1B.1 Chaparral and oak woodland. < 600 meters (amsl). Blooms June-August.
Not likely to occur. Suitable
chaparral and oak woodland
habitat are absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Holocarpha macradenia
Santa Cruz tarplant FT/SE/1B.1
Coastal prairie, coastal scrub, valley and foothill
grassland. Light, sandy soil or sandy clay; often
with nonnatives. 10-220 meters (amsl). Blooms
June-October.
Not likely to occur. Suitable
grassland habitat is present in the
BSA, yet the limited grassland
cover within the BSA is relatively
fragmented and disturbed. One
extirpated CNDDB occurrence is
known from within two miles of
the BSA observed in 1916.
No effect.
Horkelia cuneate var. sericea
Kellogg's horkelia -/-/1B.1
Closed-cone coniferous forest, coastal scrub,
coastal dunes, chaparral. Old dunes, coastal
sandhills; openings. 5-215 meters. Blooms April
through September.
Not likely to occur. Suitable
habitat is absent from the BSA.
One possibly extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1863.
N/A
Horkelia marinensis
Point Reyes horkelia -/-/1B.2
Coastal dunes, coastal prairie, coastal scrub.
Sandy flats and dunes near coast; in grassland
or scrub plant communities. 2-775 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Hypogymnia schizidiata
island tube lichen - / - / 1B.3
Chaparral, closed-cone coniferous forest. On
bark and wood of hardwoods and conifers. 255-
545 m.
Not expected. Tree species within
the BSA are largely planted, and
are not anticipated to support
this lichen. No CNDDB occurrence
records are known from within
two miles of the BSA
N/A
10 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Isocoma arguta
Carquinez goldenbush -/-/1B.1
Valley and foothill grassland. Alkaline soils, flats,
lower hills. On low benches near drainages and
on tops and sides of mounds in swale habitat.
1-50 meters. Blooms August through
December.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Lasthenia conjugens
Contra Costa goldfields FE/-/1B.1
Vernal pools, swales, low depressions, in open
grassy areas. 1-470 meters (amsl). Blooms
March-June.
Not likely to occur. Suitable
vernal pool, swale, and low
depression habitat are absent
from the BSA. No CNDDB
occurrence records are known
from within two miles of the BSA.
No effect.
Layia carnosa
beach layia FE/SE/1B.1
Coastal dunes, coastal scrub. On sparsely
vegetated, semi-stabilized dunes, usually
behind foredunes. 0-30 meters. Blooms March
through July.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
Leptosiphon rosaceus
rose leptosiphon -/-/1B.1 Coastal bluff scrub. 10-140 meters. Blooms April through July.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Lessingia germanorum
San Francisco lessingia -/-/1B.1
Coastal scrub. On remnant dunes. Open sandy
soils relatively free of competing plants. 3-155
m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA
N/A
Malacothamnus arcuatus
arcuate bushmallow -/-/1B.1
Chaparral, cismontane woodland. Gravelly
alluvium. 1-735 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
11 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Meconella oregana
Oregon meconella -/-/1B.1
Coastal prairie, coastal scrub. Open, moist
places. 60-640 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Microseris paludosa
marsh microseris -/-/1B.2
Closed-cone coniferous forest, cismontane
woodland, coastal scrub, valley and foothill
grassland. 3-610 m.
N/A
Monardella sinuata ssp.
nigrescens
northern curly-leaved
monardella
-/-/1B.2
Coastal dunes, coastal scrub, chaparral, lower
montane coniferous forest. Sandy soils. 10-245
m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Monolopia gracilens
woodland woollythreads -/-/1B.2
Serpentine grassland, open chaparral, oak
woodland. 100-1200 meters (amsl). Blooms
March-July
Not likely to occur. Suitable
chaparral and woodland habitat
are absent from the BSA and the
limited grassland cover within the
BSA is relatively fragmented and
disturbed, and is not serpentine.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Pentachaeta bellidiflora
white-rayed pentachaeta FE/SE/1B.1
Valley and foothill grassland, cismontane
woodland. Open dry rocky slopes and grassy
areas, often on soils derived from serpentine
bedrock. 35-610 meters above msl. Blooms
March-May.
Not likely to occur. Suitable
chaparral and woodland habitat
are absent from the BSA and the
limited grassland cover within the
BSA is relatively fragmented and
disturbed, and is not serpentine.
No CNDDB occurrence records
are known from within two miles
of the BSA.
No effect.
12 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Plagiobothrys chorisianus var.
chorisianus
Choris' popcornflower
-/-/1B.2
Chaparral, coastal scrub, coastal prairie. Mesic
sites. 15-160 meters. Blooms March through
June.
Not likely to occur. Suitable
habitat is absent from the BSA.
One extirpated CNDDB
occurrence is known from within
two miles of the BSA observed in
1890.
N/A
Plagiobothrys diffusus
San Francisco popcornflower -/SE/1B.1
Valley and foothill grassland, coastal prairie.
Historically from grassy slopes with marine
influence. 45-360 m.
Not likely to occur. Suitable
coastal prairie habitat is absent
from the BSA and the limited
grassland cover within the BSA is
relatively fragmented and
disturbed. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
Plagiobothrys glaber
hairless popcornflower -/-/1A
Meadows and seeps, marshes and swamps.
Coastal salt marshes and alkaline meadows. 5-
125 meters (amsl). Blooms March-May.
Not likely to occur. Small patches
of coastal salt marsh habitat
occurs on the margins of the
Radio Tower Pond and Model
Yacht Basin. The isolated and
previously disturbed nature of
these areas make occurrence of
this species unlikely. No CNDDB
occurrence records are known
from within two miles of the BSA.
N/A
Polemonium carneum
Oregon polemonium -/-/2B.2 Coastal prairie, coastal scrub, lower montane coniferous forest. 15-1525 m.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
13 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Polygonum marinense
Marin knotweed -/-/3.1
Marshes and swamps. Coastal salt marshes and
brackish marshes. 0-10 meters. Blooms April
through October.
Not likely to occur. Small patches
of coastal salt marsh habitat
occurs on the margins of the
Radio Tower Pond and Model
Yacht Basin. The isolated and
previously disturbed nature of
these areas make occurrence of
this species unlikely. One CNDDB
occurrence is known from within
two miles of the BSA observed in
1863.
N/A
Sanicula maritima
adobe sanicle -/SR/1B.1
Meadows and seeps, valley and foothill
grassland, chaparral, coastal prairie. Moist clay
or ultramafic soils. 30-240 meters. Blooms
February through May.
Not likely to occur. Suitable
coastal prairie, meadow/seep,
and chaparral habitat is absent
from the BSA and the limited
grassland cover within the BSA is
relatively fragmented and
disturbed. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
Senecio aphanactis
chaparral ragwort -/-/2B.2
Chaparral, cismontane woodland, coastal scrub.
Drying alkaline flats. 20-855 meters (amsl).
Blooms January-April.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA
N/A
Silene scouleri ssp. scouleri
Scouler's catchfly -/-/2B.2
Coastal bluff scrub, coastal prairie, valley and
foothill grassland. 5-315 m.
Not likely to occur. Suitable
coastal prairie and coastal bluff
scrub habitat is absent from the
BSA and the limited grassland
cover within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
14 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Silene verecunda ssp. verecunda
San Francisco campion -/-/1B.2
Coastal scrub, valley and foothill grassland,
coastal bluff scrub, chaparral, coastal prairie.
Often on mudstone or shale; one site on
serpentine. 30-645 m.
Not likely to occur. Suitable
coastal prairie, coastal scrub,
coastal bluff scrub, and chaparral
habitat is absent from the BSA
and the limited grassland cover
within the BSA is relatively
fragmented and disturbed. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Spergularia macrotheca var.
longistyla
long-styled sand-spurrey
-/-/1B.2
Marshes and swamps, meadows and seeps.
Alkaline. 0-220 meters (amsl). Blooms FebruaryMay.
Not likely to occur. Suitable
alkaline habitat is absent from the
BSA. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
Stebbinsoseris decipiens
Santa Cruz microseris -/-/1B.2
Broadleafed upland forest, closed-cone
coniferous forest, chaparral, coastal prairie,
coastal scrub, valley and foothill grassland.
Open areas in loose or disturbed soil, usually
derived from sandstone, shale or serpentine, on
seaward slopes. 90-750 m.
Not likely to occur. Suitable
coastal prairie, coastal scrub,
coastal bluff scrub, and chaparral
habitat is absent from the BSA
and the limited grassland cover
within the BSA is relatively
fragmented and disturbed.
Additionally, the BSA is outside of
the known range of this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Streptanthus albidus ssp.
peramoenus
most beautiful jewelflower
-/-/1B.2
Chaparral, valley and foothill grassland,
cismontane woodland. Serpentine outcrops, on
ridges and slopes. 90-1040 meters (amsl).
Blooms April-September.
Not likely to occur. Suitable
alkaline habitat is absent from the
BSA. No CNDDB occurrence
records are known from within
two miles of the BSA.
N/A
15 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Streptanthus glandulosus ssp.
niger
Tiburon jewelflower
FE/SE/1B.1 Valley and foothill grassland. Shallow, rocky serpentine slopes. 30-150 m.
Not likely to occur. Suitable
alkaline habitat is absent from the
BSA. No CNDDB occurrence
records are known from within
two miles of the BSA.
No effect.
Stuckenia filiformis ssp. alpine
slender-leaved pondweed -/-/2B.2
Freshwater wetlands, shallow, clear water of
lakes, and drainage channels. 300-2150 meters
(amsl). Blooms May-July.
Not likely to occur. Marsh habitat
within the BSA is estuarine, and
not suitable for this species. No
CNDDB occurrence records are
known from within two miles of
the BSA.
N/A
Suaeda californica
California seablite FE/-/1B.1
Marshes and swamps. Margins of coastal salt
marshes. 0-5 meters. Blooms July through
October.
Not likely to occur. Small patches
of coastal salt marsh habitat
occurs on the margins of the
Radio Tower Pond and Model
Yacht Basin. These areas were
surveyed on foot by a botanist
during reconnaissance surveys
and this species was not
observed. One CNDDB occurrence
is known from within two miles of
the BSA observed in 2008. This is
an introduced population of this
species located at the Emeryville
Crescent marsh.
No effect.
Symphyotrichum lentum
Suisun Marsh aster -/-/1B.2
Marshes and swamps (brackish and
freshwater). Most often seen along sloughs
with Phragmites, Scirpus, blackberry, Typha,
etc. 0-15 m.
Not likely to occur. Small patches
of coastal salt marsh habitat
occurs on the margins of the
Radio Tower Pond and Model
Yacht Basin. No CNDDB
occurrence records are known
from within two miles of the BSA.
N/A
16 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Trifolium amoenum
two-fork clover FE/-/1B.1
Valley and foothill grassland, coastal bluff scrub.
Sometimes on serpentine soil, open sunny sites,
swales. Most recently cited on roadside and
eroding cliff face. 5-310 m.
Not likely to occur. Suitable
coastal bluff scrub habitat is
absent from the BSA and the
limited grassland cover within the
BSA is relatively fragmented and
disturbed. No CNDDB occurrence
records are known from within
two miles of the BSA.
No effect.
Trifolium hydrophilum
saline cover -/-/1B.2
Found in freshwater marshes, depressions, and
vernal pools. Also, in mesic, alkaline valley and
foothill grassland below 300 meters (amsl).
Blooms April-June.
Not likely to occur. Marsh habitat
within the BSA is estuarine, and
not suitable for this species. Two
extirpated CNDDB occurrence
records are known from within
two miles of the BSA observed in
1883 and 1893.
N/A
Triphysaria floribunda
San Francisco owl's-clover -/-/1B.2
Coastal prairie, coastal scrub, valley and foothill
grassland. On serpentine and non-serpentine
substrate (such as at Pt. Reyes). 1-150 meters.
Blooms April through June.
Not likely to occur. Suitable
coastal prairie and coastal scrub,
habitat is absent from the BSA
and the limited grassland cover
within the BSA is relatively
fragmented and disturbed.
Additionally, the BSA is outside of
the known range of this species.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
Triquetrella californica
coastal triquetrella -/-/1B.2
Coastal bluff scrub, coastal scrub. Grows within
30m from the coast in coastal scrub, grasslands
and in open gravels on roadsides, hillsides,
rocky slopes, and fields. On gravel or thin soil
over outcrops. 10-100 meters.
Not likely to occur. Suitable
habitat is absent from the BSA.
No CNDDB occurrence records
are known from within two miles
of the BSA.
N/A
17 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State/CRPR) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species
Determination
Viburnum ellipticum
oval-leaved viburnum -/-/2B.3 Chaparral, cismontane woodland, lower montane coniferous forest. 215-1400 m.
Not likely to occur. Suitable
habitat is absent from the BSA,
and the BSA is outside the
elevation range of this species.
One CNDDB occurrence is known
from within two miles of the BSA
observed in 1914.
N/A
18 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project “Potential to Occur” Categories Definitions
Likely to occur = record is known from within 2 miles of the BSA or was observed in the BSA, and suitable habitat is present in the BSA.
May occur = record known from within 2 miles of the BSA but only marginal habitat exists in the BSA, but the occurrence is outside of the BSA.
Not likely to occur = BSA is outside of species’ range, record is possibly or presumed extirpated, or no marginal habitat present.
Status Legend
Federal
FE = Federally endangered
FT = Federally threatened
FPE = Federally proposed endangered
FPT = Federally proposed threatened
FC = Federal candidate for listing as threatened or
endangered
State
SR = State rare
SE = State endangered
ST = State threatened
CRPR (California Rare Plant Rank)
1A = Plants Presumed Extirpated in California and Either Rare or Extinct Elsewhere
1B = Plants Rare, Threatened, or Endangered in California and Elsewhere
2A = Plants Presumed Extirpated in California, But More Common Elsewhere
2B = Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere
Other
CNDDB= California Natural Diversity Database
N/A = Not Applicable
19 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project This page intentionally left blank
20 California Department of Transportation and Alameda County Transportation Commission Special-status Wildlife Species
I-80/Ashby Avenue (SR-13)
Interchange Improvements Project NES
EA 04-256200
87 Project ID 04-1800-0225
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Special-Status Wildlife Species
Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Invertebrates
Bombus occidentalis
western bumble bee -/SCE
Populations are currently restricted to high elevation
sites in the Sierra Nevada Mountains and scattered
occurrences along the California coast. Requires
abundant rodent burrows for subterranean nests or
brush piles, as well as sufficient wildflowers for food sources. Threatened by habitat loss, herbicides, and
pesticides.
Not likely to occur. The BSA is
within the species current range, but
suitable burrows and wildflowers
are largely absent. There is one
CNDDB occurrence record known
from 1965 within two miles of the
BSA, from a location spanning
Emeryville, north Oakland, and
south Berkeley. Additionally, the
application of herbicides along I-80
and roads further reduces the
potential for this species to occur.
N/A
Callophrys mossii
bayensis
San Bruno elfin butterfly
FE/-
Coastal, mountainous areas with grassy ground
cover, mainly in the vicinity of San Bruno Mountain,
San Mateo County. Colonies are located on steep,
north-facing slopes within the fog belt. Larval host
plant is Sedum spathulifolium.
Not likely to occur. Suitable habitat
is absent from the BSA and the BSA
is outside of the species’ known
range. No CNDDB occurrence
records are known from within two
miles of the BSA.
No effect.
1 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Danaus plexippus
monarch butterfly –
California overwintering
population (pop. 1)
-/-
Dense Eucalyptus, Monterey pine, and live oak
groves along Coastal California that provide shelter
from prevailing winds.
Not likely to occur. Suitable
aggregation substrate is absent from
the BSA, as linear tree groves along
roads and urban areas do not
provide adequate shelter from wind.
There is one CNDDB occurrence
record known from 2015 within two
miles of the BSA, from a location
east of the central portion of the
Berkeley Aquatic Park Lagoon (near
the western terminus of Carleton
Street). This observation location is
significantly outside of the BSA,
where no project activities would
occur.
N/A
Euphydryas editha
bayensis
Bay checkerspot
butterfly
FT/-
Current range includes San Francisco Peninsula, San
Mateo County, and Santa Clara County. Formerly San
Francisco Bay area to Mount Diablo and Hollister.
Restricted to native grasslands on outcrops of
serpentine soil in the vicinity of San Francisco Bay.
Plantago erecta is the primary host plant;
Orthocarpus densiflorus and O. purpurscens are the
secondary host plants.
Not likely to occur. Suitable
serpentine grassland habitat is
absent from the BSA. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Plebejus icarioides
missionensis
Mission blue butterfly
FE/-
Currently restricted to San Francisco Bay Area at
Twin Peaks area of SF, For Baker in Marin County,
and San Bruno Mountain in San Mateo County.
Typically found at elevations around 700 feet amsl.
Requires varied lupine (Lupinus variicolor), silver
lupine (L. albifrons), or western lupine (L. formosus)
as larval host plants.
Not likely to occur. The BSA is
located outside of the species’
range. Larval host plants are not
expected to occur within the BSA,
given the degree of ruderal and
nonnative grassland in upland areas.
No CNDDB occurrence records are
known from within two miles of the
BSA.
No effect.
2 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Speyeria callippe callippe
Callippe silverspot
butterfly
FE/-
Inner coast range of northwest Contra Costa County
south to Castro Valley in Alameda County, and San
Francisco south to La Honda in San Mateo County.
Coastal dune, bluff, scrub, and prairie typically in
areas sheltered from wind below 810 feet above
mean sea level (amsl) and within 3 miles of the
Coast. Larval hostplants are violets, typically Viola
adunca, and adult foodplants are Grindelia hirsutula,
Abronia latifolia, mints, Monardella spp., Cirsium
vulgare, and Erigeron glaucus.
Not likely to occur. Suitable coastal
dune, bluff, scrub, and prairie
habitat sheltered from wind is
absent from the BSA. Larval host
plants are not expected to occur
within the BSA, given the degree of
ruderal and nonnative grassland in
upland areas. No CNDDB occurrence
records are known from within two
miles of the BSA.
No effect.
Amphibians
Ambystoma
californiense
California tiger
salamander
FT/ST
Need vernal pools or other seasonal freshwater
sources for breeding, and adjacent underground
refuges, especially ground squirrel burrows.
Not likely to occur. Suitable
freshwater aquatic and upland
habitat is absent from the BSA. No
CNDDB occurrence records are
known from within two miles of the
BSA.
No effect.
Dicamptodon ensatus
California giant
salamander -/SSC
Known from wet coastal forests near streams and
seeps from Mendocino County south to Monterey
County, and east to Napa County. Aquatic larvae
found in cold, clear streams, occasionally in lakes
and ponds. Adults known from wet forests under
rocks and logs near streams and lakes.
Not likely to occur. Suitable
freshwater aquatic and upland
forest habitat is absent from the
BSA. No CNDDB occurrence records
are known from within two miles of
the BSA.
N/A
Rana boylii
foothill yellow-legged
frog -/SCT, SSC
Lowlands & foothills in or near permanent sources of
deep water with dense, shrubby or emergent
riparian vegetation.
Not likely to occur. The BSA is
located outside of the species’
known range, isolated by
development from suitable habitat
in the East Bay Hills, and suitable
habitat is absent from the BSA. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
3 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Rana draytonii
California red-legged
frog
FT/SSC
Lowlands and foothills in or near permanent sources
of deep water with dense, shrubby or emergent
riparian vegetation. Requires 11-20 weeks of
permanent water for larval development. Must have
access to estivation habitat. Streams, freshwater
pools, and ponds with emergent vegetation.
Not likely to occur. Suitable aquatic
freshwater habitat is absent from
the BSA and is significantly isolated
from known populations in the East
Bay Hills by urbanization. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Reptiles
Chelonia mydas
green sea turtle FT/-
Global oceans spanning the equator, including the
western U.S. coast north to southern Alaska.
Typically found nearshore areas, bays, lagoons, on
reefs, and seagrass beds. Juveniles are opportunistic
feeders, but adults that have completed their pelagic
migration phase typically feed on algae and
seagrasses.
Not likely to occur. Species is not
expected to occur along the shallow
shoreline of San Francisco Bay (SF
Bay). Habitat in the Aquatic Park
lagoon, Model Yacht Basin, and
Radio Tower Pond is not optimal.
These areas are restricted from the
SF Bay with a small number of
culverts limiting connectivity. No
CNDDB occurrence records are
known from within two miles of the
BSA.
No effect.
Emys (=Actinemys)
marmorata
western pond turtle -/SSC
A thoroughly aquatic turtle of ponds, marshes,
rivers, streams and irrigation ditches, usually with
aquatic vegetation, below 6,000 feet elevation amsl.
Needs basking sites and suitable adjacent upland
(sandy banks or grassy open fields) habitat for egglaying.
May occur. Marginal brackish to
marine aquatic habitat is present in,
the Aquatic Park lagoon, Model
Yacht Basin, and Radio Tower Pond,
but this would only provide
temporary refuge for the species.
Suitable permanent aquatic habitat
is present in the freshwater wetland
east of the lagoon. Non-native redeared sliders are present in the lagoon. No CNDDB occurrence
records are known from within two
miles of the BSA, but this species is
known to range widely throughout
the region.
N/A
4 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Masticophis lateralis
euryxanthus
Alameda whipsnake
FT/ST
Typically found in chaparral and scrub habitats but
will also use adjacent grassland, oak savanna and
woodland habitats. Mostly south-facing slopes and
ravines, with rock outcrops, deep crevices or
abundant rodent burrows, where shrubs from a
vegetative mosaic with oak trees and grasses.
Not likely to occur. BSA is outside of
the species’ range. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Thamnophis sirtalis
tetrataenia
San Francisco garter
snake
FE/SE, FP
Vicinity of freshwater marshes, ponds and slowmoving streams in San Mateo County and extreme northern Santa Cruz County. Prefers dense cover and
water depths of at least one foot. Upland areas near
water are also very important.
Not likely to occur. BSA is outside of
the species’ range. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Birds
Accipiter cooperii
Cooper’s hawk -/-
(MBTA)
Residents of forest and woodlands habitats; also
inhabit suburbs with adequate nesting habitat. Nests
in oaks, pines, spruces, Douglas-firs along flat ground with dense wooded areas. Nests can be found
amongst a horizontal branch 25-50 feet high.
May occur. Clusters of trees
represent suitable nesting substrate
in the BSA. No CNDDB occurrence
records are known from within two
miles of the BSA, but this species is
not typically tracked in CNDDB.
N/A
Aquila chrysaetos
golden eagle -/FP
Rolling foothills, mountain areas, sage-juniper flats,
& desert. Cliff-walled canyons provide nesting
habitat in most parts of range; also, large trees in
open areas.
Not likely to occur. Suitable nesting
substrate is absent from the BSA,
and the high degree of background
noise and human activity further
reduces the potential for this
species to occur. No CNDDB
occurrence records are known from
within two miles of the BSA.
N/A
Ardea alba
great egret
-/-
(MBTA)
Forages in freshwater, brackish, and marine
wetlands, as well flooded agricultural fields and
occasionally grasslands. Nests in colonies in trees
located adjacent to waterbodies, rivers, estuaries,
and marshes.
Likely to occur. Trees along the
Aquatic Park lagoon represent
suitable nesting substrate, and the
lagoon and SF Bay shoreline
represent suitable foraging habitat.
No CNDDB occurrence records are
known from within two miles of the
BSA, but this species is not typically
tracked in CNDDB.
N/A
5 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Ardea herodias
great blue heron
-/-
(MBTA)
Forages in freshwater, brackish, and marine
wetlands, as well flooded agricultural fields. Nests in colonies in trees located adjacent to waterbodies,
rivers, estuaries, and marshes.
Likely to occur. Trees along the
Aquatic Park lagoon represent
suitable nesting substrate, and the
lagoon and SF Bay shoreline
represent suitable foraging habitat.
No CNDDB occurrence records are
known from within two miles of the
BSA, but this species is not typically
tracked in CNDDB.
N/A
Asio flammeus
short-eared owl -/SSC
Permanent resident along the Coast from Del Norte
County to Monterey County (rare in summer north
of SF Bay), north of Nevada County in Sierra Nevada,
plains east of the Cascades, and Mono County.
Forages and nests in grasslands, marshes, and some
agricultural lands.
Not likely to occur. Suitable nesting
and foraging substrate is
significantly limited by development
and human activity in the BSA, and
the high degree of background noise
and vehicle further reduces the
potential for this species to occur.
No CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Athene cunicularia
burrowing owl -/SSC
Yearlong resident of open, dry grassland and desert
habitats, as well as in grass, forb and open shrub
stages of pinyon-juniper and ponderosa pine
habitats. Open, dry annual or perennial grasslands,
deserts & scrublands characterized by low-growing
vegetation. Subterranean nester, dependent upon
burrowing mammals, most notably, the California
ground squirrel (Spermophilus beecheyi).
Not likely to occur. Suitable foraging
habitat is significantly fragmented
by development in the BSA, and
substantial burrow complexes (e.g.,
nesting habitat) are absent from the
BSA. Population known from parks
primarily north of University
Avenue, but foraging habitat is
substantially limited within the BSA.
Nearby, trees, fences, and
overpasses represent potential
predator perches, which further
reduce the potential for this species
to occur. No CNDDB occurrence
records are known from within two
miles of the BSA.
N/A
6 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Branta hutchinsii
leucopareia
cackling (=Aleutian
Canada) goose
-/-
(MBTA)
Entire California population winters in Butte Sink and
migrates to Los Banos, Modesto, the SacramentoSan Joaquin Delta, and East SF Bay reservoirs. Breeds outside of California. Roosts in large marshes, stock
pond edges, flooded agricultural fields, and reservoir
edges. Forages in pastures, meadows, and grain
fields.
Not likely to occur. This species
does not nest in California.
N/A
Charadrius alexandrinus
nivosus
western snowy plover
FT/SSC
Sandy beaches, salt pond levees & shores of large
alkali lakes. Needs sandy, gravelly or friable soils for nesting.
Not likely to occur. Suitable beach
and sandy, gravelly or friable soil
substrate isolated from predators is
absent from the BSA. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Circus hudsonius
(formerly cyaneus)
northern harrier -/SSC
California coast from Del Norte County south to San
Luis Obispo, east of California Cascades, northern
2/3 of Central Valley, and portion of Great Basin
within California. Nests in marshes and moist fields,
forages over open areas.
May occur. Marginal foraging
habitat is present in grassland and
ruderal portions of the BSA, but the
small fragmented areas of grassland,
routine vegetation management,
and frequent noise and human
activity are expected to preclude
this species from nesting within the
BSA. There is one CNDDB occurrence
record known from 2002 within two
miles of the BSA at Eastshore State
Park.
N/A
Coturnicops
noveboracensis
yellow rail -/SSC
Shallow brackish and freshwater marshes, wet
meadows, and occasionally rice fields. Summer
resident in eastern Sierra Nevada in Mono County.
Not likely to occur. Suitable foraging
habitat is present along shorelines
and wetlands in portions of the BSA,
but frequent noise and human
activity are expected to preclude
this species from nesting within the
BSA. No CNDDB occurrence records
are known from within two miles of
the BSA.
N/A
7 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Egretta thula
snowy egret
-/-
(MBTA)
Year-round in San Francisco Bay, Sacramento-San
Joaquin Delta, Central Valley, Salton Sea, and
Colorado River. Winters along the Southern
California coast and migrates through the southern
2/3 of the state. Nests in colonies on thick
vegetation on islands in salt and freshwater marshes
and swamps. Forages in estuaries, marshes, tidal
channels, shallow marine bays, agricultural fields,
and other wetlands.
Likely to occur. Suitable foraging
habitat is present along shorelines
and wetlands in portions of the BSA,
but frequent noise and human
activity are expected to preclude
this species from nesting within the
BSA. No CNDDB occurrence records
are known from within two miles of
the BSA, but the species is known to
occur within the region.
N/A
Elanus leucurus
white-tailed kite -/FP
Nests in rolling foothills/valley margins with
scattered oaks and river bottomlands or marshes
next to deciduous woodland. Open grasslands,
meadows, or marshes for foraging close to isolated,
dense-topped trees for nesting and perching.
May occur. Marginal foraging
habitat is present in grassland and
ruderal portions of the BSA, but the
small fragmented areas of grassland,
routine vegetation management,
and frequent noise and human
activity reduce the potential for this
species to occur. Similarly, marginal
nest trees are present along I-80,
Ashby, and connecting ramps, but
the degree of background noise and
human activity is expected to
preclude nesting. There is one
CNDDB occurrence record known
from 1994 within two miles of the
BSA at the marina south of Cesar
Chavez Park.
N/A
Falco peregrinus anatum
American peregrine
falcon
FD/SD, FP
Year-round throughout most of California, except for
northern Sierra Nevada, Central Valley, and interior
Southern California. Forages near wetlands, lakes,
rivers, or other water; on cliffs, banks, dunes,
mounds; also, human-made structures. Nest consists
of a scrape or a depression or ledge in an open,
elevated site (cliffs, tall isolated trees, high bridges, and power transmission towers).
Not likely to occur. Suitable nesting
substrate is absent from the BSA
and the degree of noise and human
activity reduce the likelihood for this
species to occur. No CNDDB
occurrence records are known from
within two miles of the BSA.
N/A
8 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Geothlypis trichas
sinuosa
saltmarsh common
yellowthroat
-/SSC
Resident of fresh and salt water marsh and swamps
throughout San Francisco Bay. Requires thick,
continuous cover down to water surface for
foraging, and tall grasses, bulrush patches, and/or
willows for nesting.
Not likely to occur. Suitable dense,
continuous marsh habitat is absent
from the BSA. The degree of noise,
night lighting, and human activity is
expected to preclude nesting from
the BSA. There is one CNDDB
occurrence record known from 1989
within two miles of the BSA, north of
the Bay Bridge Toll Plaza.
N/A
Haliaeetus
leucocephalus
bald eagle
FD/SE, FP
Occurs mainly along coasts, rivers, and lakes; nests in tall trees or in cliffs, usually within 1 mile of water.
Nests in large, old-growth, or trees with open
branches, especially ponderosa pine. Roosts
communally in winter. Feeds mostly on fish.
Not likely to occur. Suitable Nesting
substrate is absent from the BSA
and the degree of noise and human
activity reduce the likelihood for this
species to occur. No CNDDB
occurrence records are known from
within two miles of the BSA.
N/A
Hydroprogne caspia
Caspian tern
-/-
(MBTA)
Breeds along coastal regions in San Francisco Bay
and Monterey Bay, as well as Lake Tahoe and
northern Siskiyou and Modoc counties. Nests in
colonies at shorelines of salt marshes, freshwater
lake islands, barrier islands, river islands, and dredge spoil islands. Forages in open water areas for fish.
Likely to occur. Suitable foraging
habitat in SF Bay and the lagoon,
Model Yacht Basin, and Radio Tower
Pond, but suitable nesting habitat
isolated from predators is absent
from the BSA. No CNDDB occurrence
records are known from within two
miles of the BSA, though the species
is known from the general region.
N/A
9 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Laterallus jamaicensis
coturniculus
California black rail -/ST, FP
Inhabits freshwater marshes, wet meadows and
shallow margins of saltwater marshes bordering
larger bays. Needs water depths of about 1 inch that
do not fluctuate during the year and dense
vegetation for nesting habitat.
Not likely to occur. Suitable foraging
habitat is present in the lagoon,
Model Yacht Basin, and Radio Tower
Pond, but the paucity of emergent
vegetation, degree of noise, and
routine human activity reduces the
likelihood for this species to occur.
Suitable nesting habitat is absent
from the BSA. There is one CNDDB
occurrence record known from 1999
within two miles of the BSA, north of
the Bay Bridge Toll Plaza.
N/A
Melospiza melodia
maxillaris
Suisun song sparrow -/SSC
Resident of brackish-water marshes surrounding
Suisun Bay. Inhabits cattails, bulrush, and other
sedges, and Salicornia; also known to frequent
tangles bordering sloughs.
Not likely to occur. The BSA is
outside of the species’ range.
N/A
Melospiza melodia
pusillula
Alameda song sparrow -/SSC
Resident of tidal salt marshes bordering south arm of
San Francisco Bay. Found in pickleweed marshes.
Nests in Grindelia and Salicornia along channels.
Not likely to occur. Sufficient
pickleweed-dominated marsh
habitat is absent from the BSA, with
only small isolated patches occurring
along the shore of the Model Yacht
Basin and Radio Tower Pond. Trees,
fences, light poles, and other
elevated structures are suitable
raptor perches that are present near
these areas and further reduce the
potential for the species to occur or
nest in the BSA. There are 3 CNDDB
occurrence records known within
two miles of the BSA, from locations
south of the Emeryville Peninsula,
north of the Bay Bridge Toll, Plaza,
and along the SF Bay shoreline
within and north of the BSA. The
observation made within and north
of the BSA was made in 1942.
N/A
10 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Melospiza melodia
samuelis
San Pablo song sparrow -/SSC
Resident of salt marshes along the north side of San
Francisco and San Pablo bays. Inhabits tidal sloughs
with Salicornia marshes; nests in Grindelia bordering
slough channels, and Baccharis pilularis.
Not likely to occur. The BSA is
outside of the species’ range.
N/A
Nycticorax nycticorax
black-crowned night
heron
-/-
(MBTA)
Year-round resident in California Coast and Coast
Range, Cascades, and along the Colorado River.
Migrates throughout the remainder of the State.
Nests colonially within a tree or cattails over or near water. Forages in freshwater, brackish, and salt
marshes; rivers; mud flats; other water bodies; and
wet agricultural fields.
Likely to occur. Suitable foraging
habitat is present along the SF Bay
shoreline, Aquatic Park lagoon,
Model Yacht Basin, and Radio Tower
Pond, but the degree of noise and
human activity are expected to
preclude the species from
establishing a rookery in the BSA. No
CNDDB occurrence records are
known from within two miles of the
BSA, but this species is not typically
tracked in the CNDDB.
N/A
Phalacrocorax auritus
double-crested
cormorant
-/-
(MBTA)
Colonial nester of large aquatic water bodies and
sometimes breed in colonies on smaller ponds or
lagoons. Require high perching areas and nest on the
ground on rocks with no vegetation, or atop of trees.
Likely to occur. Suitable foraging
habitat is present along the SF Bay
shoreline, Aquatic Park lagoon,
Model Yacht Basin, and Radio Tower
Pond, and the species is routinely
seen at these locations. However,
the degree of noise and human
activity are expected to preclude the
species from establishing a nesting
colony in the BSA.
N/A
Rallus obsoletus
California Ridgway’s rail FE/SE, FP
Saltwater and brackish marshes traversed by tidal
sloughs in the vicinity of San Francisco Bay.
Associated with abundant growths of pickleweed,
but feeds away from cover on invertebrates from
mud-bottomed sloughs.
Not likely to occur. Suitable tidal
marsh habitat is absent from the
BSA. There is one CNDDB occurrence
record known from 2006 within two
miles of the BSA, along the SF Bay
shoreline south of the Emeryville
Peninsula to immediately north of
the Bay Bridge Toll Plaza.
No effect.
11 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Riparia riparia
bank swallow -/ST
Colonial nester; nests primarily in riparian and other
lowland habitats west of the desert. Requires
vertical banks/cliffs with fine-textured/sandy soils
near streams, rivers, lakes, or ocean to dig nesting
hole.
Not likely to occur. Suitable nesting
habitat (vertical banks/cliffs with
sandy substrate) is absent from the
BSA. No CNDDB occurrence records
are known from within two miles of
the BSA.
N/A
Rynchops niger
black skimmer -/SSC
Nests on gravel bars, low islets, and sandy beaches,
in unvegetated sites. Nesting colonies usually less
than 200 pairs.
Not likely to occur. Suitable nesting
habitat is insufficient and near
routinely busy roads, trails, and
beaches within the BSA. Species may
occasionally forage along the SF Bay
shoreline. No CNDDB occurrence
records are known from within two
miles of the BSA.
N/A
Sternula antillarum
browni
California least tern
FE/SE, FP
Nests along the coast from San Francisco Bay south
to northern Baja California. Colonial breeder on bare
or sparsely vegetated, flat substrates: sand beaches,
alkali flats, landfills, or paved areas. Forages in open water, marine habitat.
Not likely to occur. Suitable nesting
habitat isolated from predators is
absent from the BSA. The degree of
vehicle noise and human activity
further reduces the potential for this
species to occur within the BSA.
Species is known to forage in SF Bay,
and may occasionally forage along
the Bay and lagoon. No CNDDB
occurrence records are known from
within two miles of the BSA.
No effect.
Xanthocephalus
xanthocephalus
yellow-headed blackbird -/SSC
Central Valley and southeastern California yearround. Winters in southern Arizona, Texas, New Mexico, and Mexico. Occurs in the Great Basin to
Canada during summer. Nests in freshwater
emergent wetlands with dense vegetation & deep
water. Often along borders of lakes or ponds. Nests
only where large insects such as Odonata are
abundant, nesting timed with maximum emergence
of aquatic insects.
Not likely to occur. Suitable
emergent marsh nesting habitat is
insufficient and near routinely busy
roads within the BSA. The degree of
vehicle noise and human activity
further reduces the potential for this
species to occur within the BSA. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
12 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Mammals
Antrozous pallidus
pallid bat
-/SSC
(WBWG:
High
Priority)
Deserts, grasslands, shrublands, woodlands &
forests. Most common in open, dry habitats with
rocky areas for roosting. Roosts must protect bats
from high temperatures. Very sensitive to
disturbance of roosting sites.
Not likely to occur. Some structures
may be suitable for roosting, but the
BSA is surrounded by low
fragmented foraging habitat and the
degree of background noise, night
lighting, and human activity reduces
the potential for this species to
occur. There is one CNDDB
occurrence record within two miles
of the BSA from an observation
made in 1945 in central Berkeley.
N/A
Corynorhinus townsendii
Townsend's big-eared
bat
-/SSC
(WBWG:
High
Priority)
Throughout California in a wide variety of habitats.
Most common in mesic sites. Roosts in the open,
hanging from walls and ceilings. Roosting sites
limiting. Extremely sensitive to human disturbance.
Not likely to occur. Marginal
roosting habitat occurs in tree
clusters in the BSA, but the degree
of background noise, night lighting,
and human activity reduces the
potential for this species to occur.
No CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Enhydra lutris nereis
southern sea otter FT/FP
San Mateo County to Santa Barbara County. Found
in kelp forests and forage for snails, urchins, clams,
crabs, abalone, muscles, and other invertebrates.
Not likely to occur. Significant
development is present along the SF
Bay shoreline in the BSA and the
lagoon, Model Yacht Basin, and
Radio Tower Pond are significantly
restricted from SF Bay (i.e., only
connected via culverts). Species is
not expected to occur along the
shallow shoreline of SF Bay. The
degree of background noise, night
lighting, and human activity reduces
the potential for this species to
occur. No CNDDB occurrence
records are known from within two
miles of the BSA.
No effect.
13 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Eumetopias jubatus
Steller (=northern) sealion
FD/SSC
Northern rim of the Pacific Ocean from northern
Japan to central California. Typically, in coastal
waters on the continental shelf, and give birth on
beaches (gravel, rock, or sand substrate), shoreline
ledges, and rocky reefs.
Not likely to occur. Significant
development is present along the SF
Bay shoreline in the BSA and the
lagoon, Model Yacht Basin, and
Radio Tower Pond are significantly
isolated from SF Bay (i.e., only
connected via culverts). Species is
not expected to occur along the
shallow shoreline of SF Bay. The
degree of background noise, night
lighting, and human activity reduces
the potential for this species to
occur. No CNDDB occurrence
records are known from within two
miles of the BSA.
N/A
Lasiurus blossevillii
western red bat
-/SSC
(WBWG:
High
Priority)
Roosts primarily in trees, 2-40 feet above ground,
from sea level up through mixed conifer forests.
Prefers habitat edges and mosaics with trees that
are protected from above and open below with open
areas for foraging.
Not likely to occur. Marginally
suitable roosting and fragmented
foraging habitat present in the BSA,
but the degree of background noise,
night lighting, and human activity
reduces the potential for this
species to occur. No CNDDB
occurrence records are known from
within two miles of the BSA.
N/A
Lasiurus cinereus
hoary bat
-/-
(WBWG:
Medium
Priority)
Ranges from tree limit in Canada south to
Guatemala, and from Brazil to Argentina and Chile.
Coniferous forests and deciduous woodlands. Roosts
are typically near clearings at the ends of branches.
Not likely to occur. Some structures
may be suitable for roosting, but the
BSA is surrounded by fragmented
foraging habitat and the degree of
background noise, night lighting,
and human activity reduces the
potential for this species to occur.
There are two CNDDB occurrence
records known from within two
miles of the BSA, from locations in
northwest Oakland (1951) and
central Berkeley (1972).
N/A
14 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Microtus californicus
sanpabloensis
San Pablo vole -/SSC
Salt marshes of San Pablo Creek, on the south shore
of San Pablo Bay. Constructs burrow in soft soil.
Feeds on grasses, sedges and herbs. Forms a
network of runways leading from the burrow
Not likely to occur. The BSA is
outside of the species’ range. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Neotoma fuscipes
annectens
San Francisco duskyfooted woodrat
-/SSC
Forest habitats of moderate canopy and moderate to
dense understory. May prefer chaparral and
redwood habitats. Constructs nests of shredded
grass, leaves and other material. May be limited by
availability of nest-building materials.
Not likely to occur. Substantial
forest habitat with moderate to
dense cover is absent from the BSA.
No CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Nyctinomops macrotis
big free-tailed bat
-/SSC
(WBWG:
Medium
Priority)
Primarily across southwestern US north to southern
Utah and central Colorado. Low-lying arid areas in
Southern California. Needs high cliffs or rocky
outcrops for roosting sites. Feeds principally on large moths.
Not likely to occur. Suitable high
cliff and rocky outcrop habitat is
absent from the BSA and
substantial, continuous patches
occur nearby. There is one CNDDB
occurrence record known from
within two miles of the BSA, from an
observation in central Berkeley
made in 1916.
N/A
15 California Department of Transportation and Alameda County Transportation Commission Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Reithrodontomys
raviventris
salt marsh harvest
mouse
FE/SE, FP
Only in the saline emergent wetlands of San
Francisco Bay and its tributaries. Pickleweed is
primary habitat, but may occur in other marsh
vegetation types and in adjacent upland areas. Does
not burrow; builds loosely organized nests. Requires
higher areas for flood escape.
Not likely to occur. Sufficient
pickleweed-dominated saltmarsh is
absent from the BSA, as only small
isolated patches occur along the
shore of the Model Yacht Basin and
Radio Tower Pond. Trees, fences,
light poles, and other elevated
structures are suitable raptor
perches that are present near these
areas and further reduce the
potential for the species to occur or
nest in the BSA. Substantial,
continuous patches of pickleweed
marsh do not occur nearby. There is
one CNDDB occurrence record
known from 1986 within two miles
of the BSA, along the SF Bay
shoreline south of the Emeryville
Peninsula to immediately north of
the Bay Bridge Toll Plaza.
No effect.
Scapanus latimanus
parvus
Alameda Island mole -/SSC
Endemic to Alameda Island. Found in a variety of
habitats, especially annual and perennial grasslands.
Prefers moist, friable soils. Avoids flooded soils.
Not likely to occur. The BSA is
outside of the species’ range. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
16 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Sci. Name
Common Name
Status
(Fed/State) Habitat Potential to Occur in Biological Study Area (BSA) Federally-Listed
Species Determination
Sorex vagrans halicoetes
salt-marsh wandering
shrew
-/SSC
Salt marshes of the south arm of San Francisco Bay.
Medium high marsh 6-8 ft above sea level where
abundant driftwood is scattered among Salicornia.
Not likely to occur. Sufficient
pickleweed-dominated saltmarsh is
absent from the BSA, as only small
isolated patches occur along the
shore of the Model Yacht Basin and
Radio Tower Pond. Trees, fences,
light poles, and other elevated
structures are suitable raptor
perches that are present near these
areas and further reduce the
potential for the species to occur or
nest in the BSA. Substantial,
continuous patches of pickleweed
marsh do not occur nearby. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Taxidea taxus
American badger
-/SSC
Most abundant in drier open stages of most shrub,
forest, and herbaceous habitats, with friable soils.
Needs sufficient food, friable soils and open,
uncultivated ground. Preys on burrowing rodents.
Digs burrows.
Not likely to occur. Suitable
grassland habitat is fragmented and
significantly isolated by urban
development within the BSA. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
Zapus trinotatus orarius
Point Reyes jumping
mouse -/SSC
Known from Point Reyes Peninsula, Marin Headlands
Peninsula. Found in wet coastal meadows with
loose, humus-filled dark soils associated with
redwood forests; deciduous woody vegetation along
streams and seeps, and (occasionally) in grassy areas
under forest canopy.
Not likely to occur. The BSA is
outside of the species’ range. No
CNDDB occurrence records are
known from within two miles of the
BSA.
N/A
“Potential to Occur” Categories Definitions
Likely to occur = record is known from within 2 miles of the BSA or was observed in the BSA, and suitable habitat is present in the BSA.
May occur = record known from within 2 miles of the BSA but only marginal habitat exists in the BSA, but the occurrence is outside of the BSA.
Not likely to occur = BSA is outside of species’ range, record is possibly or presumed extirpated, or no marginal habitat present. 17 California Department of Transportation and Alameda County Transportation Commission
Natural Environment Study
I-80/Ashby Avenue (SR-13) Interchange Improvements Project Status Legend
Federal
FE = federally endangeredFT = federally threatened
FPE = federally proposed endangeredFPT = federally proposed threatened FC = federal candidate for listing as threatened orendangered FD = federally delisted
Other
State
SR = state rare
SE = state endangeredST = state threatened FP = fully protected SSC = species of special concern
SC = state candidateSCE = state candidate
endangered SCT = state candidate
threatened
WBWG (Western Bat Working Group) Priority
(available: wbwg.org/matrices/species-matrix/)
High = species “considered the highest priority for funding, planning, and conservation actions. Information about status and threats to most species could result in effectiveconservation actions being implemented should a commitment to management exist. Species is imperiled orare at high risk of imperilment.”
Moderate = species warrants “evaluation, more research, and conservation actions of both the specie and possible threats. The lack of meaningful information is a major obstacle in adequately assessing species’ status and shouldbe considered a threat.” MBTA = Migratory Bird Treaty Act (applies to active nests) CNDDB = California Natural Diversity Database
NA = Not Applicable
18 California Department of Transportation and Alameda County Transportation Commission