US Bridges

Marsh Creek RD over Marsh Creek

Fair

Contra Costa County, California · 3 MI E Morgan Teritory RD · Structure no. 28C0142

Built
1937
88 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
41 ft
2 main spans
Daily traffic
5,637
2013 count
Owner
County
County Highway Agency

About this bridge

Marsh Creek RD over Marsh Creek is a concrete continuous culvert 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 5,637 vehicles a day, roughly 7% of them trucks, projected to reach 8,637 by 2046. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 16.8 mi (27 km).

CarriesMarsh Creek RD
CrossesMarsh Creek
Location3 MI E Morgan Teritory RD
RouteCounty Highway 0
Coordinates37.88471, -121.83181
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length41 ft (12.4 m)
Longest span19 ft (5.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,637 (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 5,637 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is Marsh Creek RD over Marsh Creek?

The structure is 41 ft (12.4 m) long with a longest span of 19 ft (5.7 m).

Who owns Marsh Creek RD over Marsh Creek?

It is owned by the County Highway Agency.