US Bridges

Broadway Ave over U.S. Highway 101

Fair

San Mateo County, California · 04-SM-101-16.61-BURL · Structure no. 35 0351

Built
2016
9 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
208 ft
2 main spans
Daily traffic
53,747
1999 count
Owner
State
State Highway Agency

About this bridge

Broadway Ave over U.S. Highway 101 is a concrete continuous stringer/multi-beam or girder carrying Broadway Ave over U.S. Highway 101 in San Mateo County, California. It was built in 2016, so it is 9 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 53,747 vehicles a day, roughly 5% of them trucks, projected to reach 74,818 by 2040. The structure is 208 ft (63.5 m) long and 110 ft wide.

Location

Open in Google Maps
CarriesBroadway Ave
CrossesU.S. Highway 101
Location04-SM-101-16.61-BURL
RouteCity Street 0D007
CountySan Mateo County
StateCalifornia
Coordinates37.58997, -122.36177
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length208 ft (63.5 m)
Longest span125 ft (38 m)
Deck width110 ft (33.5 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,747 (1999)
Projected traffic74,818 by 2040
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Broadway Ave over U.S. Highway 101 built?

It was built in 2016, making it 9 years old in 2025.

What condition is Broadway Ave over U.S. Highway 101 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Broadway Ave over U.S. Highway 101 carry?

About 53,747 vehicles per day (1999 count), of which roughly 5% are trucks.

How long is Broadway Ave over U.S. Highway 101?

The structure is 208 ft (63.5 m) long with a longest span of 125 ft (38 m) and a deck 110 ft wide.

Who owns Broadway Ave over U.S. Highway 101?

It is owned by the State Highway Agency.