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A draft four-year transportation plan outlines 21 projects in Marin County receiving about $200 million.

The allocations are part of the 2027 Transportation Improvement Program, or TIP, which includes more than 400 projects in the nine-county Bay Area that are set to get more than $13.8 billion through 2030.

The Metropolitan Transportation Commission, a regional planning and funding agency, is seeking comments on the draft plan through Aug. 15.

A draft four-year transportation plan outlines 21 projects in Marin County receiving about $200 million.

The allocations are part of the 2027 Transportation Improvement Program, or TIP, which includes more than 400 projects in the nine-county Bay Area that are set to get more than $13.8 billion through 2030.

“For projects that have federal funds, the TIP is really important,” said Anne Richman, executive director of the Transportation Authority of Marin. “It’s a federal requirement, and a project needs to be included in the plan in order to access their funds.”

Richman said the Transportation Authority of Marin works closely with the Metropolitan Transportation Commission to develop the plan, which the federal government requires to be updated every two years.

The program is also designed to help advance Plan Bay Area 2050+, the region’s long range plan for housing affordability, climate resilience and transportation.

“Investments in the TIP support transit, highways, bridges, local streets and roads, bicycling, walking and freight movement,” the Metropolitan Transportation Commission wrote in a statement. “In the Draft 2027 TIP, transit is slated to receive the largest financial investment, while bicycling/walking projects have the largest total number of projects.”

In Marin, the largest share, $106.8 million, is for highway projects. About $65.3 million is slated for transit, $18.2 million for bicycle and pedestrian projects and $5.3 million for local roads, according to the program.

In Marin, the largest share, $106.8 million, is for highway projects. About $65.3 million is slated for transit, $18.2 million for bicycle and pedestrian projects and $5.3 million for local roads, according to the program.

While the total investment for the planning period is just over $200 million for Marin County, the total cost for the listed projects is $2.5 billion. That larger figure includes funding that has already been allocated or funding that is programmed for 2031 or later.

One of the Marin projects on the list is a long-planned improvement at the disjointed, busy interchange from northbound Highway 101 to eastbound Interstate 580 in San Rafael. The interchange is at Bellam Boulevard, an industrial area of the Canal neighborhood.

In addition to connectivity between the highways, the proposal outlines traffic improvements, including bicycle and pedestrian upgrades, along Bellam Boulevard. An environmental review is underway to consider several project options ranging from about $50 million to more than $200 million.

Other projects set to receive funding include the Center Boulevard Bridge replacement project in San Anselmo; a proposed bicycle-pedestrian crossing at San Rafael Creek in the Canal neighborhood; a multiuse path on Paradise Drive in Corte Madera; bus facility improvements at Marin Transit’s operating center at Rush Landing Road in Novato; and the relocation of the San Rafael Transit Center.

Some regional projects include the Highway 37 widening from Sears Point to Mare Island to address sea-level rise, flooding and traffic on the commuter corridor; bridge maintenance and rehabilitation on the Richmond-San Rafael Bridge; and the seismic retrofit of the Golden Gate Bridge.

Paolo Cosulich-Schwartz, spokesperson for the Golden Gate Bridge, Highway and Transportation District, said the TIP “is a routine but necessary step for local transportation projects and programs to receive federal funding.”

“We work closely with our funding partners at MTC and TAM to ensure that any TIP updates include all district projects and services that receive federal funding,” he said.

“A lot of the local projects are locally funded,” said David Chan of the Transportation Authority of Marin. “Locally-funded projects are just as important, but they’re not going to be reflected in the TIP.”

The Metropolitan Transportation Commission also released the draft Transportation-Air Quality Conformity Analysis for review along with the Transportation Improvement Program.

The documents are available for review at mtc.ca.gov. Comments can be emailed to info@bayareametro.gov with “2027 TIP Update” as the subject line.

Comments can also be mailed to Metropolitan Transportation Commission, Attn: Public Information Office — 2027 TIP, 375 Beale St., Suite 800, San Francisco, CA 94105.

The plan is expected to be presented to MTC’s Programming and Allocations Committee when it meets Aug. 12.

The documents are available for review at mtc.ca.gov. Comments can be emailed to info@bayareametro.gov with “2027 TIP Update” as the subject line.

Comments can also be mailed to Metropolitan Transportation Commission, Attn: Public Information Office — 2027 TIP, 375 Beale St., Suite 800, San Francisco, CA 94105.

The plan is expected to be presented to MTC’s Programming and Allocations Committee when it meets Aug. 12.