US Bridges

County Road 39 over Sheep Corral Creek

Fair

Glenn County, California · 0.2 Mi. East of CR D · Structure no. 11C0268

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
491
2011 count
Owner
County
County Highway Agency

About this bridge

County Road 39 over Sheep Corral Creek is a concrete continuous culvert carrying County Road 39 over Sheep Corral Creek in Glenn County, California. It was built in 1970, so it is 55 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 491 vehicles a day, roughly 10% of them trucks, projected to reach 645 by 2042. The structure is 38 ft (11.6 m) long and 33 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesCounty Road 39
CrossesSheep Corral Creek
Location0.2 Mi. East of CR D
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.58239, -122.24589
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span12 ft (3.6 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic491 (2011)
Projected traffic645 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 County Road 39 over Sheep Corral Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is County Road 39 over Sheep Corral 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 August 2024.

How much traffic does County Road 39 over Sheep Corral Creek carry?

About 491 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is County Road 39 over Sheep Corral Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.6 m) and a deck 33 ft wide.

Who owns County Road 39 over Sheep Corral Creek?

It is owned by the County Highway Agency.