California State Route 131

From the AARoads Wiki: Read about the road before you go
Jump to navigation Jump to search

State Route 131

Tiburon Boulevard
SR 131 highlighted in red
Route information
Maintained by Caltrans
Length4.317 mi[1] (6.948 km)
Major junctions
West end US 101 in Strawberry
East endMain Street in Tiburon
CountryUnited States
Highway system
SR 130 SR 132

State Route 131 (SR 131), named Tiburon Boulevard along its entire length, is a state highway in the U.S. state of California in Marin County. It is a short route that connects U.S. Route 101 with the town of Tiburon.

Route description

The route follows the northern and eastern shorelines of Richardson Bay, an inlet of San Francisco Bay north of Sausalito. Approximately the first half of the route is four-lane divided road, until it reaches the site of the old railroad trestle and Blackie's Pasture, after which it narrows to two lanes on Tiburon Peninsula heading into Tiburon.

Beyond its western terminus at U.S. 101, Tiburon Boulevard becomes East Blithedale Avenue, which leads into Mill Valley. Its eastern terminus is at the intersection with Main Street in Tiburon, after which the road becomes Paradise Drive, a winding route which loops around the eastern side of Tiburon Peninsula, eventually leading to Corte Madera.

SR 131 is part of the National Highway System,[2] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[3]


Caltrans took over maintenance of Tiburon Boulevard and designated it as SR 131 in the 1950s; it was originally planned to be extended over a new bridge to San Francisco via Angel Island that would complement the Golden Gate Bridge.[4][5]

Major intersections

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Marin County.

Strawberry0.00 US 101 (Redwood Highway) – Eureka, San FranciscoInterchange; west end of SR 131; US 101 exit 447; road continues as East Blithedale Avenue to Mill Valley
Tiburon1.86Trestle Glen Boulevard – Paradise Beach Park, Romberg Tiburon Center, SFSU
4.39Main StreetEast end of SR 131; road continues as Paradise Drive
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
  2. ^ Federal Highway Administration (March 25, 2015). National Highway System: San Francisco–Oakland, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 29, 2017.
  3. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
  4. ^ Prado, Mark (2009-07-04). "Tiburon Boulevard work to start Monday". Marin Independent Journal. Archived from the original on 2012-04-04. Retrieved 2010-06-21.
  5. ^ "Freeways Never Built, or Unbuilt after 1989 quake". FoundSF. Retrieved 2010-06-21.
  6. ^ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  7. ^ California Department of Transportation, All Traffic Volumes on CSHS Archived 2011-07-21 at the Wayback Machine, 2006

External links