US Bridges

Old HWY 99 W over Jewett Creek

Fair

Tehama County, California · 8.9 MI N/O Glenn CO Line · Structure no. 08C0128

Built
1914
111 years old, rebuilt 1954
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
105 ft
5 main spans
Daily traffic
2,025
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old HWY 99 W over Jewett Creek is a concrete continuous tee beam carrying Old HWY 99 W over Jewett Creek in Tehama County, California. It was built in 1914 and reconstructed in 1954, so it is 111 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 2,025 vehicles a day, roughly 2% of them trucks, projected to reach 4,596 by 2042. The structure is 105 ft (32 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesOld HWY 99 W
CrossesJewett Creek
Location8.9 MI N/O Glenn CO Line
RouteCity Street 0
Coordinates39.92211, -122.19747
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length105 ft (32 m)
Longest span20 ft (6.1 m)
Deck width41 ft (12.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,025 (2010)
Projected traffic4,596 by 2042
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Old HWY 99 W over Jewett Creek built?

It was built in 1914, making it 111 years old in 2025. It was reconstructed in 1954.

What condition is Old HWY 99 W over Jewett 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 November 2024.

How much traffic does Old HWY 99 W over Jewett Creek carry?

About 2,025 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Old HWY 99 W over Jewett Creek?

The structure is 105 ft (32 m) long with a longest span of 20 ft (6.1 m) and a deck 41 ft wide.

Who owns Old HWY 99 W over Jewett Creek?

It is owned by the City or Municipal Highway Agency.