US Bridges

State Route 299 over East Weaver Creek

Fair

Trinity County, California · 02-TRI-299-52.13 · Structure no. 05 0015

Built
1962
63 years old, rebuilt 2005
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
7,125
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 299 over East Weaver Creek is a concrete continuous stringer/multi-beam or girder carrying State Route 299 over East Weaver Creek in Trinity County, California. It was built in 1962 and reconstructed in 2005, so it is 63 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 7,125 vehicles a day, roughly 12% of them trucks, projected to reach 11,721 by 2040. The structure is 88 ft (26.7 m) long and 64 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesState Route 299
CrossesEast Weaver Creek
Location02-TRI-299-52.13
RouteState Highway 299
Coordinates40.72638, -122.93467
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length88 ft (26.7 m)
Longest span86 ft (26.2 m)
Deck width64 ft (19.4 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,125 (2009)
Projected traffic11,721 by 2040
Trucks12%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed34.2 mi (55 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 East Weaver Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2005.

What condition is State Route 299 over East 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 East Weaver Creek carry?

About 7,125 vehicles per day (2009 count), of which roughly 12% are trucks.

How long is State Route 299 over East Weaver Creek?

The structure is 88 ft (26.7 m) long with a longest span of 86 ft (26.2 m) and a deck 64 ft wide.

Who owns State Route 299 over East Weaver Creek?

It is owned by the State Highway Agency.