US Bridges

State Route 299 over Weaver Creek

Fair

Trinity County, California · 02-TRI-299-56.50 · Structure no. 05 0045

Built
1953
72 years old, rebuilt 2022
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
218 ft
4 main spans
Daily traffic
5,375
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 299 over Weaver Creek is a concrete continuous tee beam carrying State Route 299 over Weaver Creek in Trinity County, California. It was built in 1953 and reconstructed in 2022, so it is 72 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 5,375 vehicles a day, roughly 22% of them trucks, projected to reach 7,779 by 2040. The structure is 218 ft (66.5 m) long and 36 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesState Route 299
CrossesWeaver Creek
Location02-TRI-299-56.50
RouteState Highway 299
CountyTrinity County
StateCalifornia
Coordinates40.67256, -122.94366
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length218 ft (66.5 m)
Longest span60 ft (18.3 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,375 (2009)
Projected traffic7,779 by 2040
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 State Route 299 over Weaver Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2022.

What condition is State Route 299 over Weaver 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 March 2023.

How much traffic does State Route 299 over Weaver Creek carry?

About 5,375 vehicles per day (2009 count), of which roughly 22% are trucks.

How long is State Route 299 over Weaver Creek?

The structure is 218 ft (66.5 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.

Who owns State Route 299 over Weaver Creek?

It is owned by the State Highway Agency.