US Bridges

Bayshore Blvd over Recreational Trail

Fair

San Mateo County, California · 0.2 Mi. N. of Valley Dr. · Structure no. 35C0028

Built
1928
97 years old, rebuilt 1951
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
26 ft
1 main span
Daily traffic
35,000
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bayshore Blvd over Recreational Trail is a concrete arch - deck carrying Bayshore Blvd over Recreational Trail in San Mateo County, California. It was built in 1928 and reconstructed in 1951, so it is 97 years old, older 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 35,000 vehicles a day, roughly 5% of them trucks, projected to reach 39,934 by 2041. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesBayshore Blvd
CrossesRecreational Trail
Location0.2 Mi. N. of Valley Dr.
RouteCity Street 0
Coordinates37.68998, -122.40318
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2010)
Projected traffic39,934 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Bayshore Blvd over Recreational Trail built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1951.

What condition is Bayshore Blvd over Recreational Trail 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 Bayshore Blvd over Recreational Trail carry?

About 35,000 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Bayshore Blvd over Recreational Trail?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m).

Who owns Bayshore Blvd over Recreational Trail?

It is owned by the City or Municipal Highway Agency.