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SF Transportation Authority approves $12.5 million for Portal engineering phase; project targets 2036 opening
Summary
The San Francisco County Transportation Authority approved a $12.5 million Prop L allocation to the Transbay Joint Powers Authority for engineering-phase work on the Portal (Downtown Rail Extension), noting a target opening in 2036 and continued need to close a multi-billion-dollar funding gap.
The San Francisco County Transportation Authority on Feb. 10 approved a $12.5 million allocation from Prop L to the Transbay Joint Powers Authority for engineering-phase activities on the Portal project, the tunnel to bring Caltrain and future high‑speed rail into the Salesforce Transit Center.
Jesse Kaylor, the Authority’s rail program manager, told commissioners the Portal project’s schedule currently "targets opening the project for passenger service in 2036," while warning that the schedule depends on completing the funding plan. He said the project’s single largest anticipated funding source is a planned $3.4 billion Federal Transit Administration capital investment grant and that the TJPA’s prior 2023 capital estimate was $8.25 billion, with a later indicative update around $7.6 billion.
Why it matters: The Portal is a regionally significant megaproject that would extend rail service into downtown San Francisco. Kaylor said the Authority will continue enhanced oversight and participate in governance and funding tasks as the project moves from engineering toward construction.
Project details and conditions: The Authority’s staff recommended, and the board approved, the Prop L allocation alongside an amendment permitting limited retroactive expenditures for work already underway. Kaylor said the TJPA prepared a three‑year scope of preconstruction work totaling roughly $235 million (excluding right‑of‑way costs) to ready the project for a full funding grant agreement with the FTA. The board’s approval included a staff‑recommended condition that Caltrain continue quarterly oversight meetings with funding partners and Transportation Authority staff.
Board reaction: Commissioners praised recent progress but emphasized the need for coordinated state and regional support to close the funding gap. Commissioner Mandelmann said achieving the 2036 target will require the board, the mayor, regional partners and the state to "be aligned" to close the last funding gaps. The board approved the allocation by voice vote after a motion and second.
Next steps: Staff will continue oversight work and return to the appropriate bodies as the TJPA advances engineering and seeks federal funding. Any larger local funding requests would require a future board vote.
Quotes used in this article are drawn from the meeting transcript and attributed to the speakers who made them.
