US Bridges

Indian Creek Road over Indian Creek

Fair

Trinity County, California · 6.9 MI E Redding Creek RD · Structure no. 05C0129

Built
1955
70 years old, rebuilt 1997
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
20
2010 count
Owner
County
County Highway Agency

About this bridge

Indian Creek Road over Indian Creek is a steel stringer/multi-beam or girder carrying Indian Creek Road over Indian Creek in Trinity County, California. It was built in 1955 and reconstructed in 1997, so it is 70 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 5 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 20 vehicles a day, roughly 2% of them trucks, projected to reach 54 by 2042. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesIndian Creek Road
CrossesIndian Creek
Location6.9 MI E Redding Creek RD
RouteCounty Highway 0
CountyTrinity County
StateCalifornia
Coordinates40.59209, -122.79359
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110 US tons
Inventory rating89.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2010)
Projected traffic54 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Indian Creek Road over Indian Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1997.

What condition is Indian Creek Road over Indian 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 August 2023.

How much traffic does Indian Creek Road over Indian Creek carry?

About 20 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Indian Creek Road over Indian Creek?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 16 ft wide.

Who owns Indian Creek Road over Indian Creek?

It is owned by the County Highway Agency.