BridgeSafety
San Mateo County, CA · Structure #35 0141

U.S. HIGHWAY 101

U.S. HIGHWAY 101 in 04-Sm-101-10.25-Sm, San Mateo County, California received a condition grade of B (67/100). Built in 1954, the bridge carries 195K vehicles daily on U.S. HIGHWAY 101 over Laurel Creek.

B
67/100
67
Condition Score
195K
Daily Traffic
1954
Year Built
11.6m
Length

Component Ratings

DeckGood
7/9

The riding surface — evaluated for cracking, spalling, and wear

SuperstructureGood
7/9

Beams, girders, and trusses that support the deck

SubstructureGood
7/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
U.S. HIGHWAY 101
Crosses Over
Laurel Creek
State
California
County
San Mateo County
Location
04-Sm-101-10.25-Sm
Year Built
1954
Reconstructed
2002
Age
72 years
Daily Traffic
195,000
Lanes
10
Length
11.6 meters
Owner
State Highway Agency
Structure Number
35 0141

About This Bridge

U.S. HIGHWAY 101 is a 72-year-old bridge located 04-Sm-101-10.25-Sm in San Mateo County, California. The bridge carries U.S. HIGHWAY 101 over Laurel Creek with 10 traffic lanes, handling approximately 195K vehicles per day. Built in 1954 and reconstructed in 2002, the structure spans 11.6 meters.

The bridge received a Condition Grade of B (67/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).

This bridge is owned and maintained by State Highway Agency.

Location Map

04-Sm-101-10.25-Sm, San Mateo County, California

37.534153, -122.277967

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Frequently Asked Questions

U.S. HIGHWAY 101 has a Condition Score of 67/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.

U.S. HIGHWAY 101 was built in 1954 and reconstructed in 2002, making it 72 years old. The average bridge age in the United States is 48 years.

U.S. HIGHWAY 101 carries approximately 195K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 11.6 meters long and located on U.S. HIGHWAY 101 in 04-Sm-101-10.25-Sm, San Mateo County, California.

No, U.S. HIGHWAY 101 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.

U.S. HIGHWAY 101 is located 04-Sm-101-10.25-Sm in San Mateo County, California. The bridge carries U.S. HIGHWAY 101 over Laurel Creek. Its coordinates are 37.534153, -122.277967. It is maintained by State Highway Agency.

U.S. HIGHWAY 101 carries U.S. HIGHWAY 101 over Laurel Creek. The bridge is 11.6 meters long and was built in 1954, with reconstruction in 2002.

Last updated:

Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.