US Bridges

E. Oak Avenue over Cow Creek

Fair

Latah County, Idaho · In Genesee · Structure no. 000000000029483

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
50
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

E. Oak Avenue over Cow Creek is a prestressed concrete stringer/multi-beam or girder carrying E. Oak Avenue over Cow Creek in Latah County, Idaho. It was built in 2005, so it is 20 years old, younger 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.

It carries about 50 vehicles a day, roughly 1% of them trucks, projected to reach 75 by 2039. The structure is 46 ft (14 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesE. Oak Avenue
CrossesCow Creek
LocationIn Genesee
RouteCity Street 0
CountyLatah County
StateIdaho
Coordinates46.54881, -116.92358
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$412,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E. Oak Avenue over Cow Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is E. Oak Avenue 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 E. Oak Avenue over Cow Creek carry?

About 50 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is E. Oak Avenue over Cow Creek?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 18 ft wide.

Who owns E. Oak Avenue over Cow Creek?

It is owned by the City or Municipal Highway Agency.