TJPA says portal cost estimate falls; $713 million funding gap remains

The Transbay Joint Powers Authority reported on July 10 that updated project work and risk analysis reduced its portal capital cost estimate from about $8.3 billion to about $7.6 billion, but the agency still expects to need roughly $713 million in additional local funding to complete its funding plan and request a full funding grant agreement from the Federal Transit Administration.

The portal project director, Alfonso Rodriguez, told the board the reduction — about $683 million — came from several sources, including value engineering, actualized escalation in the early program years, revised real estate valuations and a new quantitative risk assessment that lowered contingency by just over $100 million. "We were able to reduce our overall contingency after running a quantitative risk assessment and looking closely at our risk register," Rodriguez said.

The reduction lowers the amount of local match the authority must identify, but Rodriguez and other staff repeatedly cautioned that schedule risk, inflation and funding timing remain key risks. Rodriguez said the authority is targeting a full funding grant agreement with the FTA that would cover about 41% of the total project cost; securing that federal capital investment grant remains a major milestone for the program.

Why it matters: the portal is a major Bay Area transit infrastructure project that the TJPA and regional partners have prioritized for state and federal capital grants. Adam (Executive Director), speaking in his executive…