US Bridges

Jenkins Road over Cow Creek

FairPosted for load

Latah County, Idaho · 2.5 N. 1.6 E. Genesee · Structure no. 000000000029540

Built
1935
90 years old, rebuilt 1979
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

Jenkins Road over Cow Creek is a steel stringer/multi-beam or girder carrying Jenkins Road over Cow Creek in Latah County, Idaho. It was built in 1935 and reconstructed in 1979, so it is 90 years old, older than the Idaho average of 45.3 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 45 by 2039. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesJenkins Road
CrossesCow Creek
Location2.5 N. 1.6 E. Genesee
RouteCounty Highway 0
StateIdaho
Coordinates46.58592, -116.89706
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jenkins Road over Cow Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1979.

What condition is Jenkins Road over Cow 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 2023.

How much traffic does Jenkins Road over Cow Creek carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Jenkins Road over Cow Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns Jenkins Road over Cow Creek?

It is owned by the Other Local Agency.