US Bridges

Orinda Way over San Pablo Creek

Good

Contra Costa County, California · At Camino Pablo · Structure no. 28C0387

Built
1920
105 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
6,000
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Orinda Way over San Pablo Creek is a concrete tee beam carrying Orinda Way over San Pablo Creek in Contra Costa County, California. It was built in 1920, so it is 105 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 6,000 vehicles a day, roughly 1% of them trucks, projected to reach 10,977 by 2040. The structure is 44 ft (13.4 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOrinda Way
CrossesSan Pablo Creek
LocationAt Camino Pablo
RouteCity Street 0
Coordinates37.88594, -122.19316
Functional classUrban Minor Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating22.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span41 ft (12.6 m)
Deck width27 ft (8.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2020)
Projected traffic10,977 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Orinda Way over San Pablo Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Orinda Way over San Pablo Creek 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 Orinda Way over San Pablo Creek carry?

About 6,000 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Orinda Way over San Pablo Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.6 m) and a deck 27 ft wide.

Who owns Orinda Way over San Pablo Creek?

It is owned by the City or Municipal Highway Agency.