ALAMEDA COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT December 9, 2024
Investing in Community Resiliency
Presentation to San Leandro City Council
Revenue Enhancement:
Agenda
Flood Control District’s mission and funding
Storm damage and the need for revenue enhancement
Critical improvement projects
Proposed increase in benefit assessment
Next steps
Estudillo Canal in San Leandro is one channel with critical flood control needs 2 December 9, 2024 San Leandro City Council
Alameda County Flood Control & Water Conservation District (District) Recognizing the need for flood control and water conservation improvements throughout the county, the Board of Supervisors took steps to establish the Alameda County Flood Control and Water Conservation District which was created by an act of the State Legislature in 1949.
It was created for the purpose of providing for the control and conservation of flood and storm waters.
Flooding in 1955 led to the construction of San Lorenzo Creek Federal Project (Zone 2, Line B). 1955, December – San Lorenzo Creek near Center Street, Hayward 3 December 9, 2024 San Leandro City Council
District’s Zones in Western Alameda County
Six zones were formed by 1960 (2, 3A, 4, 5, 6 and 9)
Three more zones were formed soon after 1960 (2A, 12 and 13) Revenue enhancement will be focused in:
Zone 2: 52,534 parcels on 40,390 acres
Serves Castro Valley, San Lorenzo, portions of Hayward and San Leandro, Ashland, Cherryland, Fairview Zone 4: 2,538 parcels on 2,960 acres
Serves portion of the City of Hayward and Russel City
Zone 9: 6,308 parcels on 2,482 acres
Serves portion of the City of San Leandro
4 December 9, 2024 San Leandro City Council
What does the Alameda County Flood Control District do? Builds and maintains flood control infrastructure to reduce flood risk.
San Lorenzo Creek Retaining Wall
Estudillo Canal Channel Wall Reconstruction
5 December 9, 2024 San Leandro City Council
What does the Alameda County Flood Control District do? Operates pump stations to move water from channels and underground pipe systems into the San Francisco Bay Pump Station D1 in San Leandro
Existing pump equipment
6 December 9, 2024 San Leandro City Council
What does the Alameda County Flood Control District do? Enhances the natural environment; Creates green, sustainable infrastructure where possible.
Cull Creek Dam modification
After spillway crest removal
7 December 9, 2024 San Leandro City Council
Flooding Threats in City of San Leandro
Estudillo Canal – Existing FEMA Floodplain
8 December 9, 2024 San Leandro City Council
Flooding Threats in City of San Leandro
San Lorenzo Creek – Existing FEMA Floodplain
9 December 9, 2024 San Leandro City Council
December 31, 2022 / January 2023 Winter Storms
San Lorenzo Creek downstream of Meekland Avenue, Hayward 10 December 9, 2024 San Leandro City Council
December 31, 2022 / January 2023 Winter Storms
11 December 9, 2024 San Leandro City Council
Flooding in and near Estudillo Canal at Inverness Street December 31, 2022 / January 2023 Winter Storms
12 December 9, 2024 San Leandro City Council
December 31, 2022 / January 2023 Winter Storms Damage
Estudillo Canal
13 December 9, 2024 San Leandro City Council
San Lorenzo Creek behind Wingate WayCreek bank washed out undermining retaining wall December 31, 2022 / January 2023 Winter Storms Damage
14 December 9, 2024 San Leandro City Council
A Street along San Lorenzo Creek
December 31, 2022 / January 2023 Winter Storms Damage
15 December 9, 2024 San Leandro City Council
Zone 2
Estudillo Canal, Bay to I-880 Freeway
– constructed between 1957 and 1961 (over 63 years in service) Estudillo Canal, upstream of I-880 Freeway
– constructed in the early 1960s (over 60 years in service) Pump station (Roberts Landing) – constructed in 1995 (29 years in service) San Lorenzo Creek, Bay to Foothill Blvd.
– constructed between 1959 and 1962 (over 65 years in service) Zone 9
Open channels (Lines B, C, D)
– constructed between 1962 and 1971 (over 62 years in service) Pump stations (Belvedere, D-1, F, H)
– constructed between 1960 and 1966 (over 64 years in service) Major Flood Control Facilities with the City of San Leandro:
Aging Infrastructure
16 December 9, 2024 San Leandro City Council
Major Flood Control Facilities with the City of San Leandro 17 December 9, 2024 San Leandro City Council
District’s Current Funding
*Benefit assessment has not increased since 1993
Dollars
Percent
Taxes
$6.1 million
60%
Benefit assessment*
$2.2 million
22%
Other
$1.9 million
18%
Annual total
$10.2 million
Zones 2, 4, and 9 Combined (2023)
18 December 9, 2024 San Leandro City Council
“Perfect storm” of resource needs
Aging infrastructure (over 60 years old)
Climate change will only increase the frequency and intensity of extreme storms in the future.
Sea level rise impacts to low-lying communities
Costs of maintenance and operations continue to rise
Costs of delivering projects continue to rise
About $700M in unmet capital project needs
Current revenue cannot ever catch up
19 December 9, 2024 San Leandro City Council
Proposed Critical Projects in the City of San Leandro
(within Zones 2 and 9):
The District's goal is to increase the capacity of our flood infrastructure to withstand more severe storms, to meet current FEMA design standards, and to upgrade or reconstruct aging facilities.
The proposed projects will:
Increase stormwater carrying capacity
Upgrade and/or reconstruct aging infrastructures to extend service life Meet FEMA design requirements and remove FEMA designated floodplains Decrease risk of flooding
Protect properties
Reduce long-term maintenance costs
20 December 9, 2024 San Leandro City Council
Proposed Critical Projects in the City of San Leandro
(within Zones 2 and 9)
21 December 9, 2024 San Leandro City Council
Critical Projects: Estudillo Canal
22 December 9, 2024 San Leandro City Council
Increase in Benefit Assessment
Suggested funding level:
$373 million over 20 years
Zone 2: $330 million
Zone 4: $23 million
Zone 9: $20 million
Strategic decision:
Covers critical projects
Palatable increase for public
23 December 9, 2024 San Leandro City Council
What Property Owners Might Pay
Zone
Current annual assessment*
New benefit assessment
(est.)**
% increase
2 (single family)
$26.60
$54.39
104%
4 (single family)
$20.60
$42.28
105%
9 (single family)
$17.80
$88.44
397%
2 (commercial)
$212.80
$906.42
326%
4 (commercial)
$189.16
$704.54
272%
9 (commercial)
$163.45
$1,473.96
802%
* The benefit assessment has not increased since 1993, over 30 years ** To be adjusted annually by CPI
24 December 9, 2024 San Leandro City Council
Benefit Assessment Calculation
Benefit assessment amount is based on the following factors:
Location within or outside of floodplain
Parcel size
Land use category (single-family residential, agricultural, industrial, etc.) Impervious surface (based on land use category)
25 December 9, 2024 San Leandro City Council
Focus of Outreach and Education
Education on flood risks in Alameda County
Impacts of stormwater, storm damage, and sea level rise here and now Projects the additional revenue would be used for
Note:
District's involvement is purely educational
26 December 9, 2024 San Leandro City Council
Audiences and Outreach
AUDIENCE
OUTREACH METHODS
Formal letters
One-on-one briefings
Board and Council presentations
One-on-one briefings
Group presentations
Letters and/or email blast
Group presentations
Outreach toolkit
Pop-up events
Informational materials
Elected officials
Agency partners
Community organizations
General public
27 December 9, 2024 San Leandro City Council
Timeline
Property owner outreach
Public hearingand ballot counting
August
2024
January
2025
March
2025
September
2024
Community org outreach
Elected official and agency outreach
Ballots
sent
28 December 9, 2024 San Leandro City Council
Next Steps: Benefit Assessment Increase
Refine and optimize project list and cost details
Conduct robust stakeholder engagement and public education, including community survey Garner support of education and outreach by our partners Schedule County Board of Supervisors formal approval of Engineer's Report - Target: January 2025 Mail Protest notice and ballot to property owners, indicate whether they are in favor of, or in opposition to, the proposed assessments - Target: February 2025 County Board of Supervisors conduct public hearing with weighted ballots - Target: March 2025 If there is no majority protest, the County Board of Supervisors may then approve the assessments. 29 December 9, 2024 San Leandro City Council
ALAMEDA COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT December 9, 2024
Thank You!