US Bridges

State Route 36 over Sheep Gulch

Poor

Tehama County, California · 02-TEH-036-54.84 · Structure no. 08 0054

Built
1961
64 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
1,375
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 36 over Sheep Gulch is a concrete slab carrying State Route 36 over Sheep Gulch in Tehama County, California. It was built in 1961, so it is 64 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,375 vehicles a day, roughly 16% of them trucks, projected to reach 2,457 by 2046. The structure is 34 ft (10.4 m) long and 43 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

Open in Google Maps
CarriesState Route 36
CrossesSheep Gulch
Location02-TEH-036-54.84
RouteState Highway 36
CountyTehama County
StateCalifornia
Coordinates40.30867, -122.07548
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,375 (2015)
Projected traffic2,457 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$226,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 36 over Sheep Gulch built?

It was built in 1961, making it 64 years old in 2025.

What condition is State Route 36 over Sheep Gulch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does State Route 36 over Sheep Gulch carry?

About 1,375 vehicles per day (2015 count), of which roughly 16% are trucks.

How long is State Route 36 over Sheep Gulch?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 43 ft wide.

Who owns State Route 36 over Sheep Gulch?

It is owned by the State Highway Agency.