Receive a Report on the Revised Funding
Allocation Request to the Metropolitan
Transportation Commission (MTC) from
Regional Measure 3 Dumbarton Corridor
Improvement Program for the Quarry Lakes
Parkway Project, City Project No. 18-04
Marilou R. Ayupan, Public Works Director
City Manager Report- Item 6.2
September 23, 2025 - City Council Meeting
2 MTC’s Regional Measure 3 (RM 3) Program ($4.45 Billion) (Approved by Voters in 2018)
RM 3 Expenditure Plan (Projects and Programs)
(17) Dumbarton Corridor Improvements. ($130,000,000).
Funds planning, environmental review, design, and construction of capital improvements within the Dumbarton Bridge and rail corridor in the Counties of Alameda and San Mateo to relieve congestion, increase person throughput, and offer reliable travel times. Eligible projects recommended in the Dumbarton Corridor Transportation Study and improvements to facilitate rail and transit connectivity among ACE, Capitol Corridor, and BART, including rail connection at the Shinn Station. The project sponsors are BATA, Alameda CTC, San Mateo Transit District and San Mateo County Transportation Authority.
3 RM 3, Dumbarton Corridor Improvement Program Funds
MTC Approved RM 3 List of Projects in June 2024
4 RM 3, Dumbarton Corridor Improvement Program
MTC RM 3 Approval Process for Quarry Lakes Parkway
At July 8,2025 City Council approved the submittal of RM3 DB Corridor Funding Allocation Request to Alameda CTC and MTC Request of $25 Million of Dumbarton Corridor Improvement Funds for Quarry Lakes Parkway Project, City Project No. 18-04 will be for construction of:
§ Environmental Off-Site Mitigation $20.0 million
§ Quarry Lakes Parkway, Phase 1 $ 1.5 million
§ Quarry Lakes Parkway, Phase 2 $ 3.5 million
$ 25.0 million
Major Cost Reduction of the Environmental Mitigation
5 QUARRY LAKES PARKWAY, PHASES 1-4
Old Alameda
Creek
Alameda Creek
Flood Control
Channel
Line M
Line M
6 RM 3, Dumbarton Corridor Improvement Program
New Basin (Line M Detention Basin) –CEQA EIR
Is New Basin a “Season Pond”?
Temporary Stores Stormwater Runoff
February 2022 (Winter) July 2022 (Summer)
7 RM 3, Dumbarton Corridor Improvement Program
New Basin (Line M Detention Basin) –Mitigation Costs
• RM3 Request, $20 million
• RWQCB defined the
existing Line M Detention
Basin as Seasonal Pond
(“Waters of the State)
• Requires 3:1 Mitigation
Ratio
• Union City did not agree
• Held meetings with
RWQCB to discuss
Environmental Mitigation Option 2- $30 million
8 RM 3, Dumbarton Corridor Improvement Program
New Basin (Line M Detention Basin) –History
- DTSC/PSSC Clean Up Site
(2000-2006)
- Caltrans Route 84 EIS/EIR
(2003-2005)
- New KB Homes Temporary
Drainage (2003-2005)
- Est. Cost $900,000
Detention Basin always
intended to be temporary
basin until the roadway is
constructed.
9 RM 3, Dumbarton Corridor Improvement Program
New Basin (Line M Detention Basin) –History
§ The Line M Detention Basin/Pump Station, City Project No. 03-25 was designed to provide interim stormwater runoff basin to allow the development of the housing on the former PSSC sites. After a storm event, Public Works operates the pump station to drain the basin into the Line M Channel to avoid the creation of a wetland.
§ The future Route 84 excavation area was used as an interim detention pond. Intended to be temporary until SR 84 construction in 2009 (by Caltrans).
§ Authorized by RWQCB (File No. 21-51004, 2004) to construct basin and pumping facility at the future 84 site and the bypass and outfall pipes connecting detention basin and Line M Channel. 10 RM 3, Dumbarton Corridor Improvement Program
New Basin (Line M Detention Basin) –History
• City constructed the Line M
Detention Basin in 2006 and
expected Route 84
construction by 2009
• Discussed Line M Overflow
pipeline will add this
stormwater to Old Alameda
Creel (Relocating basin)
• Submitted RWQCB with
Project History and
Maintenance Memo
• RWQCB concurrence on
August 4, 2025
Environmental Mitigation Option 1 - $13 Million $17.0 million SAVINGS 11 §
Environmental Off-Site Mitigation
(Construction& Permits)
Line M
• Sites Approved by RWQCB (Regional
Water Quality Control Board)
• Meets Mitigation requirements for
Wetland, Riparian, Species and Waters
and other Alameda CTC projects
• Developers also want these sites
Proposed Location (Livermore)
1) Manning Ranch (part of Eagle Ridge)
2) Livermore Valley Preserve
Revised RM3 Request- Mitigation
Cost: $13 million
12 RM 3, Dumbarton Corridor Improvement Program
Met with Alameda CTC to provide QLP status and discuss
strategy to revise RM3 Funding Allocation Request.
Revised RM3 Funding Allocation Request
§ Mitigation (Per RWQCB concur) $13.000 million
§ QLP, Segment (Phase) 1 PS&E $ 2.578 million*
§ QLP, Segment (Phase) 1A CON $ 1.000 million
§ QLP, Segment (Phase) 2 CON $ 8.422 million
$25.000 Million
13 RM 3, Dumbarton Corridor Improvement Program
Environmental Mitigation (Spring 2026)
Off Site Mitigation (Oberling Environmental Site)
QLP, Segment (Phase) 1 Final PS&E (Dec. 2025- Jan 2027) Currently at 65%PS&E. Proceed with project coordination and completion of the Final Design (with 95%, 100% and Final PS&E) QLP, Segment (Phase) 1A CON (Spring 2026)
Construct Off-Site Location to relocate all transit fleet (UC and DBX) to accommodate QLP, Phase 1 Construction (before CY Wall Moves) QLP, Segment (Phase) 2 CON (Spring 2027)
On Caltrans Property, includes realign Quarry Lakes Drive, AlvaradoNiles Road improvements, new utilities, stormwater treatment basin and Line M Overflow Pipe into Old Alameda Creek
14 PHASE 1: 7TH STREET CONNECTION
(7TH Street to Mission Boulevard)
§ Realign 7th Street along Corp Yard to
connect to Chesapeake with new
Traffic Signal
§ Reconstruct the Line M Open
Channel and Box
§ Relocate & Reconstruct Corp Yard
Security Wall
§ Modify QLP/Mission Blvd
Intersection
§ New parking lot for CY & Dog Park
Construction Estimate-$41.3 million
Revised RM3 Request-
$2.578 million for Final
Design (Consultant)
15 PHASE 1: 7TH STREET CONNECTION
(7TH Street to Mission Boulevard)
Advance Improvements (Corp Yard Impacts)
§ Relocate entire transit fleet to during construction
§ Construct temporary transit fleet (UC Transit and
DBX) storage area at 11th Street parking lot
(Block 6)
§ Pave the southern portion of Corp Yard
Revised RM3 Request, QLP, Phase 1A is $1.0 million
for Construction (Partial Funding)
16 PHASE 2: GATEWAY CONNECTION
(Old Alameda Creek to Alvarado-Niles Road)
§ Construct storm water quality
treatment basin and outfall structures
in Old Alameda Creek
§ Realign existing Quarry Lakes Drive
between new QLP and Isherwood
next to creek
§ Install and modify utilities
§ Install new traffic signal and street
lighting
Construction Estimate - $42.1 million
Revised RM3 Request-
$8.422 million for CON
(Partial Funding)
17 Quarry Lakes Parkway, Phase 2
Multimodal Design Elements
• “Complete Streets” Design
• 20-foot Multi-Use Path
• Buffered Bike Lanes
• 35 MPH Speed Limit
• Landscaped Medians
• Connections to Parks and Trails
18 Quarry Lakes Parkway, Phase 2
Caltrans Property (LATIP Revenue $86 million)
Alvarado-Niles Road
Osprey
Quarry Lakes Drive
Caltrans
Parcel
Caltrans
Parcel
Approximate ROW Quarry Lakes Parkway / New Quarry Lakes Drive 19 Former Caltrans Gateway Site Status
• Caltrans Purchase Sale Agmt.(PSA) - 2019
• Exclusive Negotiating Agreement (ENA)
§ Executed Dec. 14, 2021
§ 400 – 535 units
§ 25% affordable (Surplus Land Act)
§ Criteria for preservation of historic
resource area
§ Extended through June 7, 2026.
§ Negotiations pending final roadway
plans, permits and secured funding
Sale will fund LATIP projects ($86 million)
incl. Quarry Lakes Parkway ($41.8 million)
20 RM 3, Dumbarton Corridor Improvement Program
Submit $25.0 Million RM3 Allocation Request
* Updated Total Cost for QLP, Phase 1-3 is $221.3 million 21 Quarry Lakes Parkway-Decoto Complete Streets Funds
Dedicated Transportation Funds Regional
Sources
Amount
AlaCTC 1986 Measure B Funds* County $65,500,000
AlaCTC 2005 CMA-TIP County $14,300,000
Caltrans Route 84 LATIP Funds State $41,814,000
AlaCTC 2014 Measure BB (TEP
21-Dumbarton)
County $40,000,000
AlaCTC 2014 Measure BB (TEP
22- Intermodal Station)
County $75,000,000
MTC RM3, Dumbarton Corridor
Funds
Bay Area $25,000,000
Total Funds $261,614,000
22 RM 3, Dumbarton Corridor Improvement Program
23 RM 3, Dumbarton Corridor Improvement Program
MTC RM3 Dumbarton Corridor Improvement Program:
Funding Allocation Request for Quarry Lakes Parkway.
Revised RM3 Funding Allocation Request
§ Environmental Mitigation $13.000 million
§ QLP, Segment (Phase) 1 PS&E $ 2.578 million
§ QLP, Segment (Phase) 1A CON $ 1.000 million
§ QLP, Segment (Phase) 2 CON $ 8.422 million
$25.000 Million
24 RM 3, Dumbarton Corridor Improvement Program
July 8,2025 City Council adopted Resolution No. 2025-097, which allows CM to resubmit revisions to the RM3 funding allocation request forms (Attachment 5) in Staff Report. • Initial Project Report
• RM3 Funding Plan
• RM3 Allocation Request Information*
• Cash Flow Plan*
• MTC Complete Streets (Bike/Ped) Checklist Form
Forms are being reviewed by Alameda CTC and MTC staff for upcoming Commission approvals in next few months
25 RM 3, Dumbarton Corridor Improvement Program Funds
Receive a report on the Revised Funding Allocation
Request to the Metropolitan Transportation
Commission (MTC) from Regional Measure 3,
Dumbarton Corridor Improvements Program for the
Quarry Lakes Parkway, City Project No. 18-04
Questions?