Alameda Residents (2020 Census)
Last Year of Rail Service
70K+
Daily Vehicles Through Tubes & Bridge
New Housing Units Required by 2031

Alameda is an island city of 78,117 residents (2020 Census) in the East Bay. Despite being just across the estuary from Oakland and a short distance from San Francisco, Alameda has zero rail transit. Nearly half of residents (46.7%) drive alone to work, only 12.2% use public transit, and the average commute is 32.1 minutes. The only ways on and off the island are:

Webster & Posey Tubes

Two narrow, aging tunnels carrying ~30,000 vehicles/day. The Posey Tube was built in 1928 (nearly 100 years old); Webster in 1963. One-way configuration since 1963. Severe congestion during commute hours. One closure = island gridlock.

AC Transit Buses

Lines 20, 51A, 1T, 6, 840 connect to Oakland; transbay lines W and O reach SF. But buses are caught in the same tube congestion. After AC Transit's August 2025 Realign, several transbay routes (OX, NX1, NX2) were eliminated. Riders must transfer at BART stations for regional access.

SF Bay Ferry

Three terminals: Main Street, Seaplane Lagoon, and Harbor Bay. Seaplane Lagoon averages ~1,500 daily riders (surpassed 1M cumulative in 2025). But parking lots are at 89-97% capacity. Ferry system set a record in March 2026 (300,917 passengers). Growing fast but capacity-constrained.

Bay Farm Island Bridge

Bascule drawbridge (built 1953) carrying 40,000+ vehicles/day. Opens ~360 times per year for boat traffic. Only serves Bay Farm Island / east Alameda. Combined with the tubes, that's 70,000+ daily vehicles on just 3 access points.

Three of the four Link21 alignment concepts route through Alameda. This is the only foreseeable opportunity to bring rail transit to the island. If Link21 bypasses Alameda, the city may wait another 50-100 years.

B

Concept B: SF → Port of Oakland (Bypasses Alameda)

This concept routes directly from SF to the Port of Oakland, completely bypassing Alameda. It serves fewer residents and misses the opportunity to bring rail to an underserved island community.

Skips Alameda

Alameda residents have paid into the BART tax district for 50+ years without a single station. The island was bypassed by the original BART system and lost its Key System rail in 1958. Routing Link21 through Alameda corrects a historic wrong. Link21's own equity framework prioritizes serving communities impacted by negative mobility outcomes.

The former Naval Air Station (878 acres) is becoming a major mixed-use hub with 2,696 planned housing units across four projects: Site A waterfront town center (1,300 units, amended up from 800), North Housing (586 affordable units for seniors, veterans, formerly homeless - Phase 1 broke ground), West Midway (478 units, construction starting Q4 2025), and RESHAP (332 affordable/supportive units). Plus 500,000+ sq ft of commercial space and 200+ acres of parks. The Seaplane Lagoon Ferry Terminal is already operating at near-capacity (89% parking). A Link21 station here creates a rail-ferry-bus interchange anchoring true transit-oriented development.

The Webster and Posey Tubes are severe bottlenecks. Thousands of Alameda commuters sit in tube traffic every day. Rail transit through Alameda would take thousands of cars off the road, relieving congestion for everyone - including those who continue to drive.

Alameda is an island facing rising sea levels. Reducing car dependence is critical for the city's climate goals. Electric rail transit produces zero direct emissions. And as flooding risks grow, having a sub-bay rail connection provides resilient transportation infrastructure.

78,000+ residents with no rail option today = massive latent demand. The Seaplane Lagoon ferry already proves it: 1,500 daily riders and parking lots at 89-97% capacity after just 4 years. Add 2,696 new Alameda Point residents, and the island's proximity to SF and Oakland job centers (median household income $132K - these are commuters), and an Alameda station would have strong ridership from day one.

An intermediate Alameda station adds to the network rather than just connecting two endpoints. It creates new trip pairs (Alameda-SF, Alameda-Oakland, Alameda-Sacramento) that don't exist today, maximizing the return on a multi-billion-dollar investment.

California requires Alameda to plan for 5,353 new housing units by 2031 (RHNA allocation). As of the latest count, only 663 permits have been issued - a massive gap. Cities that fail to meet their housing targets face state penalties including the "Builder's Remedy" (developers can bypass zoning) and loss of state funding.

5,353
Housing Units Required by 2031
Only 663 permitted (12.4%) - 4,690 to go
Housing Units Planned at Alameda Point

These 2,696 units at Alameda Point could fill half of Alameda's RHNA gap - but without rail transit, thousands of new residents means thousands of new cars on the already-overwhelmed tubes and bridge. Link21 makes this growth sustainable.

SB 79 (Senator Wiener, signed Oct 2025, effective July 1, 2026) mandates upzoning near transit stations in Alameda County. A Link21 station here would trigger minimum 120 du/acre within 1/4 mile and 100 du/acre within 1/2 mile - by law, no city can go lower. Meanwhile, cities that fall behind on housing face $10,000-$50,000/month penalties under SB 1037. A Link21 station at Alameda Point turns the island's biggest development into a model transit-oriented community and helps Alameda avoid state enforcement.

Link21 is in the Project Selection Phase right now. The alignment hasn't been finalized. Public comment directly influences which route gets selected. If Alameda residents and supporters show up in force, the Alameda route becomes the obvious choice.

The Window Is Closing

Link21 is in the Project Selection Phase. Once the alignment is locked in and environmental review begins, it becomes exponentially harder to change the route. The time to advocate for Alameda is now, not after the EIR is published.

If the alignment is selected without an Alameda station, the island will have missed its best chance at rail transit for the foreseeable future. Don't let that happen.