US Bridges

East Fk Hayfork RD over Hayfork Creek

Fair

Trinity County, California · 0.2 MI E Wildwood Road · Structure no. 05C0193

Built
1971
54 years old
Condition
Fair
inspected May 2024
Type
Girder and Floorbeam System
Steel
Length
66 ft
1 main span
Daily traffic
50
1980 count
Owner
County
County Highway Agency

About this bridge

East Fk Hayfork RD over Hayfork Creek is a steel girder and floorbeam system carrying East Fk Hayfork RD over Hayfork Creek in Trinity County, California. It was built in 1971, so it is 54 years old, younger 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 50 vehicles a day, roughly 39% of them trucks, projected to reach 159 by 2042. The structure is 66 ft (20.1 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesEast Fk Hayfork RD
CrossesHayfork Creek
Location0.2 MI E Wildwood Road
RouteCounty Highway 0
CountyTrinity County
StateCalifornia
Coordinates40.49046, -123.07118
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1980)
Projected traffic159 by 2042
Trucks39%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 East Fk Hayfork RD over Hayfork Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is East Fk Hayfork RD over Hayfork 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 May 2024.

How much traffic does East Fk Hayfork RD over Hayfork Creek carry?

About 50 vehicles per day (1980 count), of which roughly 39% are trucks.

How long is East Fk Hayfork RD over Hayfork Creek?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 14 ft wide.

Who owns East Fk Hayfork RD over Hayfork Creek?

It is owned by the County Highway Agency.