US Bridges

South Ave over Jewett Creek

Poor

Tehama County, California · 3.6 MI E/O Road 99W · Structure no. 08C0166

Built
1968
57 years old
Condition
Poor
inspected December 2023
Type
Slab
Concrete
Length
81 ft
4 main spans
Daily traffic
5,576
2021 count
Owner
County
County Highway Agency

About this bridge

South Ave over Jewett Creek is a concrete slab carrying South Ave over Jewett Creek in Tehama County, California. It was built in 1968, so it is 57 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 5,576 vehicles a day, roughly 9% of them trucks, projected to reach 6,970 by 2043. The structure is 81 ft (24.6 m) long and 40 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSouth Ave
CrossesJewett Creek
Location3.6 MI E/O Road 99W
RouteCounty Highway 0
CountyTehama County
StateCalifornia
Coordinates39.90636, -122.13315
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length81 ft (24.6 m)
Longest span20 ft (6.2 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,576 (2021)
Projected traffic6,970 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Ave over Jewett Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is South Ave over Jewett Creek 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 December 2023.

How much traffic does South Ave over Jewett Creek carry?

About 5,576 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is South Ave over Jewett Creek?

The structure is 81 ft (24.6 m) long with a longest span of 20 ft (6.2 m) and a deck 40 ft wide.

Who owns South Ave over Jewett Creek?

It is owned by the County Highway Agency.