US Bridges

Briones Valley RD over Briones Valley Creek

Fair

Contra Costa County, California · 2.9 MI W Deer Valley RD · Structure no. 28C0495

Built
2001
24 years old
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
44 ft
1 main span
Daily traffic
50
2014 count
Owner
County
County Highway Agency

About this bridge

Briones Valley RD over Briones Valley Creek is a steel truss - thru carrying Briones Valley RD over Briones Valley Creek in Contra Costa County, California. It was built in 2001, so it is 24 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 5 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 50 vehicles a day, projected to reach 154 by 2046. The structure is 44 ft (13.5 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBriones Valley RD
CrossesBriones Valley Creek
Location2.9 MI W Deer Valley RD
RouteCounty Highway 0
CountyContra Costa County
StateCalifornia
Coordinates37.90981, -121.81473
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1 (+4 approach)
Design loadUnknown
Structure length44 ft (13.5 m)
Longest span40 ft (12.3 m)
Deck width14 ft (4.2 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2014)
Projected traffic154 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
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 Briones Valley RD over Briones Valley Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Briones Valley RD over Briones Valley Creek 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 July 2024.

How much traffic does Briones Valley RD over Briones Valley Creek carry?

About 50 vehicles per day (2014 count).

How long is Briones Valley RD over Briones Valley Creek?

The structure is 44 ft (13.5 m) long with a longest span of 40 ft (12.3 m) and a deck 14 ft wide.

Who owns Briones Valley RD over Briones Valley Creek?

It is owned by the County Highway Agency.