US Bridges

E80-WILLOW Off&on over Rodeo Creek

Fair

Contra Costa County, California · 04-CC-080-10.71 · Structure no. 28 0193Y

Built
1958
67 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
2,250
2019 count
Owner
State
State Highway Agency

About this bridge

E80-WILLOW Off&on over Rodeo Creek is a concrete continuous culvert carrying E80-WILLOW Off&on over Rodeo Creek in Contra Costa County, California. It was built in 1958, so it is 67 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 6 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 2,250 vehicles a day, roughly 1% of them trucks, projected to reach 4,580 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesE80-WILLOW Off&on
CrossesRodeo Creek
Location04-CC-080-10.71
RouteInterstate 80
CountyContra Costa County
StateCalifornia
Coordinates38.0221, -122.26091
Functional classUrban Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,250 (2019)
Projected traffic4,580 by 2041
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 E80-WILLOW Off&on over Rodeo Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is E80-WILLOW Off&on over Rodeo 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 2023.

How much traffic does E80-WILLOW Off&on over Rodeo Creek carry?

About 2,250 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is E80-WILLOW Off&on over Rodeo Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns E80-WILLOW Off&on over Rodeo Creek?

It is owned by the State Highway Agency.