US Bridges

Deer Valley RD over Marsh Creek

Good

Contra Costa County, California · 0.3 MI N Marsh Creek RD · Structure no. 28C0124

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
2,400
2013 count
Owner
County
County Highway Agency

About this bridge

Deer Valley RD over Marsh Creek is a prestressed concrete stringer/multi-beam or girder carrying Deer Valley RD over Marsh Creek in Contra Costa County, California. It was built in 1991, so it is 34 years old, younger 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 2,400 vehicles a day, roughly 6% of them trucks, projected to reach 4,946 by 2046. The structure is 80 ft (24.4 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesDeer Valley RD
CrossesMarsh Creek
Location0.3 MI N Marsh Creek RD
RouteCounty Highway 0
Coordinates37.88467, -121.77594
Functional classRural 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2013)
Projected traffic4,946 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Deer Valley RD over Marsh Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Deer Valley RD over Marsh 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 July 2024.

How much traffic does Deer Valley RD over Marsh Creek carry?

About 2,400 vehicles per day (2013 count), of which roughly 6% are trucks.

How long is Deer Valley RD over Marsh Creek?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 37 ft wide.

Who owns Deer Valley RD over Marsh Creek?

It is owned by the County Highway Agency.