US Bridges

Marsh Creek RD over Marsh Creek

Fair

Contra Costa County, California · 3 MI E Deer Valley Road · Structure no. 28C0145

Built
1937
88 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
60 ft
3 main spans
Daily traffic
3,979
2013 count
Owner
County
County Highway Agency

About this bridge

Marsh Creek RD over Marsh Creek is a steel continuous stringer/multi-beam or girder carrying Marsh Creek RD over Marsh Creek in Contra Costa County, California. It was built in 1937, so it is 88 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 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 3,979 vehicles a day, roughly 7% of them trucks, projected to reach 8,637 by 2046. The structure is 60 ft (18.3 m) long and 25 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesMarsh Creek RD
CrossesMarsh Creek
Location3 MI E Deer Valley Road
RouteCounty Highway 0
CountyContra Costa County
StateCalifornia
Coordinates37.87293, -121.72733
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 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 rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span32 ft (9.8 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,979 (2013)
Projected traffic8,637 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Marsh Creek RD over Marsh Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Marsh Creek RD over Marsh 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 Marsh Creek RD over Marsh Creek carry?

About 3,979 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is Marsh Creek RD over Marsh Creek?

The structure is 60 ft (18.3 m) long with a longest span of 32 ft (9.8 m) and a deck 25 ft wide.

Who owns Marsh Creek RD over Marsh Creek?

It is owned by the County Highway Agency.