US Bridges

French Creek Road over North Fork French Creek

Fair

Siskiyou County, California · 2.9 MI S of SR 3 · Structure no. 02C0130

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel
Length
61 ft
1 main span
Daily traffic
245
2011 count
Owner
County
County Highway Agency

About this bridge

French Creek Road over North Fork French Creek is a steel truss - thru carrying French Creek Road over North Fork French Creek in Siskiyou County, California. It was built in 1975, so it is 50 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 245 vehicles a day, roughly 20% of them trucks, projected to reach 396 by 2041. The structure is 61 ft (18.6 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFrench Creek Road
CrossesNorth Fork French Creek
Location2.9 MI S of SR 3
RouteCounty Highway 0
Coordinates41.38128, -122.88564
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (2011)
Projected traffic396 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 French Creek Road over North Fork French Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is French Creek Road over North Fork French 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 July 2023.

How much traffic does French Creek Road over North Fork French Creek carry?

About 245 vehicles per day (2011 count), of which roughly 20% are trucks.

How long is French Creek Road over North Fork French Creek?

The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns French Creek Road over North Fork French Creek?

It is owned by the County Highway Agency.