US Bridges

State Route 254 over Bridge Creek

Fair

Humboldt County, California · 01-HUM-254-10.80 · Structure no. 04 0009

Built
1938
87 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
160 ft
6 main spans
Daily traffic
565
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 254 over Bridge Creek is a concrete tee beam carrying State Route 254 over Bridge Creek in Humboldt County, California. It was built in 1938, so it is 87 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 565 vehicles a day, roughly 6% of them trucks, projected to reach 1,457 by 2042. The structure is 160 ft (48.8 m) long and 31 ft wide. If it were closed, the detour would be 93.2 mi (150 km).

Location

Open in Google Maps
CarriesState Route 254
CrossesBridge Creek
Location01-HUM-254-10.80
RouteState Highway 254
CountyHumboldt County
StateCalifornia
Coordinates40.28261, -123.85712
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic565 (2014)
Projected traffic1,457 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed93.2 mi (150 km)
TollOn a free road
National Highway SystemNo

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 254 over Bridge Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is State Route 254 over Bridge 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 2024.

How much traffic does State Route 254 over Bridge Creek carry?

About 565 vehicles per day (2014 count), of which roughly 6% are trucks.

How long is State Route 254 over Bridge Creek?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns State Route 254 over Bridge Creek?

It is owned by the State Highway Agency.