US Bridges

Stout Road over Cow Creek

Fair

Latah County, Idaho · 1.5 N. 1.6 E. Genesee · Structure no. 000000000029475

Built
1970
55 years old, rebuilt 1983
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
2 main spans
Daily traffic
50
2023 count
Owner
Local
Other Local Agency

About this bridge

Stout Road over Cow Creek is a steel stringer/multi-beam or girder carrying Stout Road over Cow Creek in Latah County, Idaho. It was built in 1970 and reconstructed in 1983, so it is 55 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 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 5% of them trucks, projected to reach 75 by 2039. The structure is 37 ft (11.3 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStout Road
CrossesCow Creek
Location1.5 N. 1.6 E. Genesee
RouteCounty Highway 0
StateIdaho
Coordinates46.57156, -116.89356
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 2023
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 alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadH 15
Structure length37 ft (11.3 m)
Longest span18 ft (5.5 m)
Deck width21 ft (6.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks5%
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 Stout Road over Cow Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1983.

What condition is Stout 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 Stout Road over Cow Creek carry?

About 50 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Stout Road over Cow Creek?

The structure is 37 ft (11.3 m) long with a longest span of 18 ft (5.5 m) and a deck 21 ft wide.

Who owns Stout Road over Cow Creek?

It is owned by the Other Local Agency.