Agenda packet — Suisun City City Council, April 1, 2025 (part 2 of 2)

program the traffic signal at the East Tabor Avenue/Sunset Avenue intersection to optimized traffic operations.

Figure 1 illustrates the proposed improvements and additional features along the corridor.

Cost Estimate
Based on the conceptual understanding of the preferred alternative, Fehr & Peers estimated that the cost to construct the preferred alternative would range from $250,000 to $440,000. The cost estimates are based on construction costs from similar projects throughout California from 2022 to 2024 and include an allowance for planning, engineering, environmental clearance, construction-related soft costs, construction management inspection, and contingency. The cost estimate does not include any costs related to relocation or reconstruction of underground utilities that may or may not be present in the project vicinity or potential right-of-way acquisition.

Planned Projects
Based on discussions with City of Suisun City staff, there are two anticipated projects along the corridor which would contribute a fair share fee toward the preferred alternative:
• Olive Residential Development: 70 single-family residential dwelling units to be located on a vacant parcel along Olive Avenue
• Cannabissary: a 2,494 square foot marijuana dispensary to be located on a vacant parcel at the Railroad Avenue/Humphrey Drive intersection
Methodology & Fair Share Calculations
To calculate each project’s fair share fee, Fehr & Peers calculated the projects trip generation and estimated the number of planned project vehicle trips that would utilize the East Tabor Avenue/Railroad Avenue intersection. The number of planned project vehicle trips was divided by the growth in traffic volumes at the study location between Existing and Cumulative conditions to estimate the planned project’s fair share.

Table 1 summarizes the planned project’s trip generation and cumulative traffic contribution.

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March 13, 2025

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Table 1: Planned Projects Trip Generation1 and Cumulative Traffic Contribution Project/
Land Use
ITE
Code Size Units
AM Peak Hour PM Peak Hour
% of Project
Trips Utilizing
East Tabor Ave/
Railroad Ave
Cumulative
Traffic
Contribution2
In Out Total In Out Total AM PM AM PM
Olive Avenue Residential
Single Family
Detached 210 70 du 12 37 49 42 24 66 59% 59% 7% 8%
Cannabissary
Marijuana
Dispensary 882 2.494 ksf 14 12 26 24 23 47 58% 55% 4% 6% Notes:

1. Trip generation calculations based on ITE Trip Generation Manual, 11th Edition ITE Code 210 (Single Family Detached):

AM Rate: 0.7; In: 25%; Out: 75%
PM Rate: 0.94; In: 63%; Out: 37%
ITE Code 882 (Marijuana Dispensary):

AM Rate: 10.54; In: 52%; Out: 48%
PM Rate: 18.92; In: 50%; Out: 50%

2. Cumulative traffic contribution is the percentage of project trips utilizing East Tabor Avenue/Railroad Avenue divided by the estimated cumulative growth. The cumulative growth is based on the difference between existing traffic data and estimated cumulative volumes under preferred alternative Option B, presented in the Railroad Avenue Realignment Report (January 2025).

Olive Avenue Residential
The Olive Avenue Residential project is estimated to generate 49 AM and 66 PM peak hour trips.

Approximately 60-percent of the peak hour trips are anticipated to use the East Tabor Avenue/Railroad Avenue intersection, which represents approximately 8% of the anticipated growth at the intersection. Therefore, the estimated Olive Avenue Residential project fair share contribution could range from $18,000 to $37,000.

Cannabissary
The Cannabissary project is estimated to generate 26 AM and 47 PM peak hour trips.

Approximately 60-percent of the peak hour trips are anticipated to use the East Tabor Avenue/Railroad Avenue intersection, which represents approximately 5% of the anticipated growth at the intersection. Therefore, the estimated Cannabissary project fair share contribution could range from $10,000 to $25,000.

This concludes our fair share calculations memorandum for the East Tabor Avenue/Railroad Avenue project. For questions, please contact Sarah Chan. 173
Laurel Creek
E Tabor AveE Tabor Ave
Meadowlark DrMeadowlark Dr
Air Base PkwyAir Base Pkwy
Railroad AveRailroad Ave
Sunset AveSunset Ave
Olive AveOlive Ave
Humphrey DrHumphrey Dr
Worley RdWorley Rd
Blossom AveBlossom Ave
Grande CirGrande Cir
Grande CirGrande Cir
Manor PlManor Pl
King/f_isher WayKing/f_isher Way
Falcon DrFalcon Dr Cormorant DrCormorant Dr
Clay Bank RdClay Bank Rd
Villa CtVilla Ct

SUISUN CITY

FAIRFIELD
1 2
3 4
AWSC

SSSC SSSC
FF FF
Reprogram
traﬀic signal
Construct raised curb extensions and concrete median with mountable curb and install appropriate signage indicating no left turns at the intersection.

This project alternative would cost approximately $250K–$440K Notes:

1. These cost estimates are based on construction costs from similar projects in Northern and Southern California based on 2022 to 2024 cost data.

2. These cost estimates include an allowance for planning, engineering, environmental clearance, construction-related soft costs (such as mobilization and traﬀic control), construction management inspection, and contingency.

3. These cost estimates do not include any costs related to relocation or reconstruction of underground utilities that may or may not be present in the project vicinity or impacts to and potential right-of-way acquisition.

WC24-4088_5_ImpCost-2
Prohibited Lefts at Railroad Avenue Project Alternative — Improvements and Cost Estimate Figure 1
Study Intersection Signalized Intersection All Way Stop Controlled Intersection Side Street Stop Controlled Intersection (Free East-West Movements on Tabor)
Right Turn Movements Only
#

AWSC SSSC
FF
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General Plan Amendment to Eliminate a
Planned Roadway Realignment
California Environmental Quality Act
Categorical Exemption Report
prepared by
City of Suisun
701 Civic Center Boulevard
Suisun City, California 94585
Contact: John Kearns, Principal Planner
prepared with the assistance of
Rincon Consultants, Inc.
4825 J Street, Suite 200
Sacramento, California 95819
June 2023
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Table of Contents

California Environmental Quality Act Categorical Exemption Report i Table of Contents
Categorical Exemption Report ................................................................................................................ 1

1. Introduction ................................................................................................................................ 1

2. Project Area and Existing Conditions .......................................................................................... 2

3. Project Description ..................................................................................................................... 2

4. Consistency Analysis ................................................................................................................... 5

5. Summary ..................................................................................................................................... 7

6. References .................................................................................................................................. 8 Figures
Figure 1 Project Location Map ........................................................................................................ 3 Figure 2 Project Area Map............................................................................................................... 4

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Categorical Exemption Report

California Environmental Quality Act Categorical Exemption Report 1 Categorical Exemption Report
This report serves as the documentation of an environmental analysis performed by Rincon Consultants, Inc. for a proposed General Plan amendment to remove the Railroad Avenue realignment from East Tabor Avenue to Olive Avenue from the General Plan Vehicular Transportation Network Diagram (proposed project). The intent of the analysis is to document how and why the project is eligible for Class 1 Categorical Exemptions (CE), pursuant to the California Environmental Quality Act (CEQA). This report provides an introduction, project description, and evaluation of the project’s consistency with the requirements for a Class 1 CE. The report demonstrates that the project is eligible for Class 1 CE.

1. Introduction
Section 15301 of the State CEQA Guidelines states that a Class 1 CE is for the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration to existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of existing or former use. Sections 15301(a) through (p) provide a non-inclusive list of example projects that are covered under a Class 1 CE. The key consideration is whether the project involves negligible or no expansion of use.” Among the examples listed in the Guidelines under this exemption are existing highways and streets, sidewalks, gutters, bicycle and pedestrian trails, and similar facilities that do not create additional automobile lanes.

Additionally, State CEQA Guidelines Sections 15300.2(a) through (f) list specific exceptions for which, if applicable, a CE may not be used. These exceptions are as follows:
a) Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located – a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive environment be significant. Therefore, these classes are considered to apply all instances, except where the project may impact on an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies.
b) Cumulative Impact. All exemptions for these classes are inapplicable when the cumulative impact of successive projects of the same type in the same place, over time is significant. c) Significant Effect. A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances.
d) Scenic Highways. A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. This does not apply to improvements which are required as mitigation by an adopted negative declaration or certified EIR.
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General Plan Amendment to Eliminate a Planned Roadway Realignment

2 e) Hazardous Waste Sites. A categorical exemption shall not be used for a project located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code. f) Historical Resources. A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource.

2. Project Area and Existing Conditions
The project area consists of an existing rail crossing and paved roads located at the intersection of East Tabor Avenue and Railroad Avenue in the City of Suisun City, as shown on Figure 1 and Figure 2. The area where the proposed Railroad Avenue realignment is proposed for removal is currently zoned as Commercial Service and Fabricating (CSF) according to the City’s zoning map (City of Suisun City 2016).

The site has a land use designation of Commercial Mixed Use according the City of Suisun City General Plan. Both East Tabor Avenue and Railroad Avenue are paved with railroad traffic control devices located on East Tabor Avenue at the rail crossing. The project area is surrounded by residential uses to the northwest, a church to the northeast, and commercial and fabrication uses to the south.

3. Project Description
The City of Suisun City has proposed a General Plan amendment to remove the planned Railroad Avenue realignment from Railroad Avenue/Humphrey Drive to Olive Avenue from the General Plan Vehicular Transportation Network Diagram. The General Plan Vehicular Transportation Network Diagram currently shows plans for a realignment that would modify portion of Railroad Avenue south of the East Tabor Avenue/Railroad Avenue intersection such that Railroad Avenue would only provide ingress/egress to the storage facility and no longer be a through street, and route Railroad Avenue to the east to Olive Avenue, per Figure 2. The project would consist of amending the General Plan Vehicular Transportation Network Diagram to remove this realignment, and that the proposed realignment of Railroad Avenue does not occur. Therefore, no development is proposed at the project area, no roadway improvements in this area would occur, and the existing conditions of the site would remain unchanged. 182
Categorical Exemption Report

California Environmental Quality Act Categorical Exemption Report 3 Figure 1 Project Location Map

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4 Figure 2 Project Area Map

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California Environmental Quality Act Categorical Exemption Report 5

4. Consistency Analysis
Class 1 CE Applicability
Section 15301 of the State CEQA Guidelines state that a Class 1 CE is for the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration to existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of existing or former use. The project includes a General Plan amendment to remove the Railroad Avenue realignment from Railroad Avenue/Humphrey Drive to Olive Avenue from the General Plan Vehicular Transportation Network Diagram. The amendment would result in the East Tabor Avenue/Railroad Avenue intersection and segment of Railroad Avenue between East Tabor Avenue and Humphrey Drive remaining unchanged. Therefore, no development would occur, and the existing conditions of the project area would remain the same.

Therefore, the proposed General Plan amendment to remove the Railroad Avenue realignment would meet the applicability requirements for a Class 1 CE pursuant to Section 15301 of the State CEQA Guidelines.

Exceptions to CE Applicability
The applicability of all CEs is qualified by the exceptions listed in Section 15300.2(a) through (f) of the State CEQA Guidelines. In the discussion below, each exception (in italics) is followed by an explanation of why the exception does not apply to the proposed project. 15300.2(a) Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located – a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive environment be significant. Therefore, these classes are considered to apply all instances, except where the project may impact on an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies.

The project area is currently developed with the paved roads of East Tabor Avenue and Railroad Avenue, and a rail crossing. There are no wetlands, streams, aquatic or riparian habitat, or other designated, precisely mapped, and officially adopted environmentally sensitive resources of critical concern on or directly adjacent to the project area (USFWS 2023). Additionally, the project area is within an urbanized area of Suisun City, which is developed with commercial buildings, sidewalks, roads, parking areas, and other similar urban development. The project area is not located in an environmentally sensitive area.

There are no environmental resources of hazardous or critical concern that are designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies on the project area, such as critical habitat for listed threatened or endangered species. According to a search of the Department of Toxic Substances Control EnviroStor database conducted on April 20, 2023, there are no designated hazardous waste sites on or within the immediate vicinity. Similarly, a search of the State Water Resources Control Board GeoTracker database showed no cleanup sites in the vicinity of the project area. Therefore, this exception to a CE does not apply to the proposed project. 185
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General Plan Amendment to Eliminate a Planned Roadway Realignment

6 15300.2(b) Cumulative Impact. All exemptions for these classes are inapplicable when the cumulative impact of successive projects of the same type in the same place, over time is significant.

The proposed project would not result in significant environmental impacts and there are no other successive projects of the same type or scale planned for the same location. In addition, the proposed project proposes that planned changes to the roadway network not take place at the project area, with a General Plan amendment to reflect elimination of this planned realignment. Areas surrounding the project area are developed with commercial facilities to the south, and no additional facilities or changes are proposed at this time. Areas to the northwest of the project area are developed with residential development and are located within the City of Fairfield. The church located northeast of the project area and undeveloped areas to the east of the project site are also located in the City of Fairfield.

No significant cumulative impact would result from successive projects of the same type in the same place over time. Therefore, this exception to a CE does not apply to the proposed project. 15300.2(c) Significant Effect. A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances.

The project area is at the intersection of East Tabor Avenue and Railroad Avenue, and is developed with structures, paved areas, and an existing rail crossing. There are no wetlands, streams, aquatic or riparian habitat, unique cultural or historic sites, scenic vistas, or other unusual circumstances on or adjacent to the project area. The project would not disturb natural habitats or unusual resources, such as vernal pools or steep slopes. The disturbance required to install the solar arrays and equipment would occur within areas developed with existing onsite pavement and structures, as well as gravel and bare dirt areas. As the project involves removing the planned realignment of Railroad Avenue, no development would occur and no tree removal would take place. Due to the absence of unusual circumstances on the project area, the project would not have a reasonable possibility of a significant effect on the environment. This exception to a CE does not apply to the proposed project. 15300.2(d) Scenic Highways. A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. This does not apply to improvements which are required as mitigation by an adopted negative declaration or certified EIR.

According to the California Department of Transportation (2023), there are no officially designated scenic highways within five miles of the project area. The nearest highway eligible for designation is a portion of Highway 221 which is located approximately 14 miles west of the project area. The nearest designated highway is Route 160 near the City of Walnut Grove approximately 25 miles east of the project area. The project area is not visible from Highway 221 or Route 160 due to distance and intervening topography and development. Therefore, this exception to a CE does not apply to the proposed project.
15300.2(e) Hazardous Waste Sites. A categorical exemption shall not be used for a project located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code.

According to a search of the Department of Toxic Substances Control EnviroStor database and State Water Resources Control Board GeoTracker database conducted on April 20, 2023, there are no records 186
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California Environmental Quality Act Categorical Exemption Report 7 of open or active designated hazardous waste sites on or within the immediate vicinity of the project area. Therefore, this exception to a CE does not apply to the proposed project. 15300.2(f) Historical Resources. A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource.

According to a record search conducted by Rincon Consultants in April 2023 through the National Record of Historic Places (NRHP), no structures in the project area are listed as a historic resource. The project would not result in any construction, and thus would not cause a substantial adverse change in the significance of a historical resource. Therefore, this exception to a CE does not apply to the proposed project.

5. Summary
Based on this analysis, the proposed General Plan amendment to remove the Railroad Avenue realignment from Railroad Avenue/Humphrey Drive to Olive Avenue from the General Plan Vehicular Transportation Network Diagram meets all criteria for a Class 1 CE pursuant to Section 15301 of the State CEQA Guidelines. Furthermore, exceptions to the applicability of a CE, as specified in Section 15300.2(a) through (f) of the State CEQA Guidelines, do not apply to the project. Therefore, it is concluded that the proposed project is categorically exempt from CEQA pursuant to State CEQA Guidelines Sections 15301.
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8 6. References
California Department of Toxic Substances Control. EnviroStor Database. https://www.envirostor.dtsc.ca.gov/public/map/?myaddress=East+Tabor+Avenue+%26+Railroa d+Avenue%2C+Fairfield%2C+CA%2C+USA. (accessed April 2023).

California Department of Transportation (Caltrans). 2023. California Scenic Highway Mapping System. https://caltrans.maps.arcgis.com/apps/webappviewer/index.html?id=465dfd3d807c46cc8e805 7116f1aacaa. (accessed April 2023).

California State Water Resources Control Board. GeoTracker Database. https://geotracker.waterboards.ca.gov/map/?CMD=runreport&myaddress=East+Tabor+Avenue +%26+Railroad+Avenue%2C+Fairfield%2C+CA%2C+USA. (accessed April 2023).

National Parks Service. National Register of Historic Places. https://npgallery.nps.gov/NRHP/SearchResults/8286d9f583b24f0384e8203ab210c5f6?page=1& view=list&sort=default. (accessed April 2023).

Suisun City, City of. 2015. City of Suisun City 2035 General Plan. https://www.suisun.com/files/sharedassets/suisuncity/departments/development- services/documents/gp-vol_1_ch1-3.pdf (accessed April 2023). ______. 2016. Zoning Map.
https://www.suisun.com/files/sharedassets/suisuncity/departments/development- services/documents/zoning_map_-_suisun_city_-_2017.pdf (accessed April 2023).

United States Fish and Wildlife Service (USFWS). 2023. National Wetlands Inventory: Wetlands Mapper [map database]. https://fwsprimary.wim.usgs.gov/wetlands/apps/wetlands-mapper/ (access April 2023).
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3/27/2025
1 General Plan Vehicular T ransportation Diagram AmendmentSuisun City, City Council April 1, 2025 BackgroundGeneral Plan ElementsTransportation Element – Goals and Policy Statements Diagram and ExhibitsPC and Council Consider ChangesAction by PC and City Council1 2 189
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2 Current ConditionRailroad Avenue – function and realignmentPrior General Plans – policy statement1992 General PlanGeneral Plan 2035 General Plan 2035 – Vehicular Transportation Diagram (Current Condition)3 4 190
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3 General Plan 2035 – Vehicular Transportation Diagram (Proposed Condition) General Plan 2035 – Vehicular Transportation Diagram (Proposed Condition) 5 6
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4 EvaluationFehr & Peers updated technical analysisCity Council Discussion – Jan 2025Option B – staff and traffic engineer recommendationCost for improvements EvaluationExplore funding optionsFurther discussion with City of FairfieldSurrounding development – fair share opportunityFair Share analysis completed7 8 192
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5 Council ActionOption B path/funding - $500kMinimal funding – current condition- Existing - $27,378- Fair share (future development)- $89,378- Shortfall - $410,622Participation – City of FairfieldNeed for grant funding City Council ActionSTAFF RECOMMENDATIONThat the City Council hold a public hearing, and:1.Determine that the General Plan Amendment to removethe Railroad Avenue realignment from Railroad Avenue toOlive Avenue from the General Plan VehicularTransportation Diagram meets all criteria for a Class 1Categorical Exemption pursuant to Section 15301 of theState CEQA Guidelines.2.Adopt Resolution No. 2025-___; A Resolution of the CityCouncil of the City of Suisun City Recommending the CityCouncil Amend the Transportation Element, Amend theVehicular Transportation Diagram removing the RailroadAvenue Alignment connecting to Olive Avenue. 9 10
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Suisun City City Council
April 1, 2025