US Bridges

Bayshore Blvd over Hillside

Good

San Francisco County, California · Bayshore and 101 · Structure no. 34C0010

Built
1970
55 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
228 ft
8 main spans
Daily traffic
1,000
2013 count
Owner
County
County Highway Agency

About this bridge

Bayshore Blvd over Hillside is a concrete continuous slab carrying Bayshore Blvd over Hillside in San Francisco County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,274 by 2043. The structure is 228 ft (69.5 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBayshore Blvd
CrossesHillside
LocationBayshore and 101
RouteCity Street 0
Coordinates37.71454, -122.39819
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating28.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length228 ft (69.5 m)
Longest span30 ft (9.1 m)
Deck width12 ft (3.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2013)
Projected traffic1,274 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bayshore Blvd over Hillside built?

It was built in 1970, making it 55 years old in 2025.

What condition is Bayshore Blvd over Hillside in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Bayshore Blvd over Hillside carry?

About 1,000 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Bayshore Blvd over Hillside?

The structure is 228 ft (69.5 m) long with a longest span of 30 ft (9.1 m) and a deck 12 ft wide.

Who owns Bayshore Blvd over Hillside?

It is owned by the County Highway Agency.