BridgeSafety
San Mateo County, CA · Structure #35 0037

HOLLY STREET

HOLLY STREET in 04-Sm-101-8.40, San Mateo County, California received a condition grade of C (59/100). Built in 1954, the bridge carries 201K vehicles daily on HOLLY STREET over US Highway 101.

C
59/100
59
Condition Score
201K
Daily Traffic
1954
Year Built
89.3m
Length

Component Ratings

DeckFair
6/9

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

SuperstructureFair
6/9

Beams, girders, and trusses that support the deck

SubstructureGood
7/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
HOLLY STREET
Crosses Over
US Highway 101
State
California
County
San Mateo County
Location
04-Sm-101-8.40
Year Built
1954
Reconstructed
1987
Age
72 years
Daily Traffic
201,000
Lanes
6
Length
89.3 meters
Owner
State Highway Agency
Structure Number
35 0037

About This Bridge

HOLLY STREET is a 72-year-old bridge located 04-Sm-101-8.40 in San Mateo County, California. The bridge carries HOLLY STREET over US Highway 101 with 6 traffic lanes, handling approximately 201K vehicles per day. Built in 1954 and reconstructed in 1987, the structure spans 89.3 meters.

The bridge received a Condition Grade of C (59/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 7/9 (good).

This bridge is owned and maintained by State Highway Agency.

Location Map

04-Sm-101-8.40, San Mateo County, California

37.513494, -122.256322

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Frequently Asked Questions

HOLLY STREET has a Condition Score of 59/100 (Grade C). Its deck is rated 6/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.

HOLLY STREET was built in 1954 and reconstructed in 1987, making it 72 years old. The average bridge age in the United States is 48 years.

HOLLY STREET carries approximately 201K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 89.3 meters long and located on HOLLY STREET in 04-Sm-101-8.40, San Mateo County, California.

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

HOLLY STREET is located 04-Sm-101-8.40 in San Mateo County, California. The bridge carries HOLLY STREET over US Highway 101. Its coordinates are 37.513494, -122.256322. It is maintained by State Highway Agency.

HOLLY STREET carries HOLLY STREET over US Highway 101. The bridge is 89.3 meters long and was built in 1954, with reconstruction in 1987.

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.