The Treasure Island Development Authority on Tuesday authorized a memorandum of agreement (MOA) with the San Francisco County Transportation Authority to fund and deliver segment 4 of the island's multi-use path and roadway improvements, a roughly $38 million project that adds a 16-foot-wide multimodal path and a transit-only lane to Treasure Island Road.

The agreement commits conditional local funds and requires the Transportation Authority to finalize design, secure construction funding, obtain permits and award a construction contract so segment 4 can be ready for construction in the June 2026 in-water work window. Director Linda Richardson moved the approval; Commissioner Dunlop seconded. The board voted to approve the MOA with unanimous aye votes.

Why it matters: The project fills a long-standing gap between the island and the Bay Bridge East Span bicycle and pedestrian connections and upgrades the existing road profile to add dedicated transit access, a continuous east-west multi-use path and stormwater, lighting and roadway improvements. TIDA staff said building now while adjacent road closures and related work are in place reduces the need for repeated closures and disturbance to the community.

The Transportation Authority's Deputy Director for Capital Projects, Carl Holmes, described the scope and construction approach in a slide presentation to the board. "We demolished seven bridges and we are now retrofitting one bridge and that bridge is to provide access onto the west span of the Bay Bridge," Holmes said, explaining earlier bridge removals and retaining-wall work that make the new, stable roadway possible.

Wei Zhang, TIDA infrastructure manager, said the roadway project will bring the island's facilities closer to the Bay Skyway and MTC/BATA regional connections. Zhang outlined the funding structure: TIDA committed $7.5 million backed by a conditional IIG award, the developer will reimburse $3.0 million of previously required improvements, and an additional $300,000 is expected from contractor yard leasing revenue. The remainder must come from regional and state sources the Transportation Authority is pursuing.

The board heard that segment 4 is the most urgent piece because of adjacent construction on Westside Bridges and Hillcrest projects; those contracts create opportunities to advance the multi-use path as change orders or coordinated work while roadways are closed. Zhang said the full multimodal loop on Treasure Island will reduce future rework: "Once we open TI Road once for all, in 2028, we won't have to close it again," he said.

Next steps: TIDA and SFCTA staff will finalize the MOA provisions, continue to pursue the remaining construction funds and complete final design and permitting. TIDA staff said they expect to present related construction milestones back to the board as permitting and funding are secured.

Context and limits: Board members and staff repeatedly cautioned that some funding items are conditional (for example, the IIG award) and that construction schedules remain subject to permit approvals and grant awards. The MOA authorizes the Transportation Authority to pursue funding and manage construction; it does not transfer park or other ownership rights to SFCTA.