US Bridges

3501: Eagle Creek over Eagle Creek

Good

Nez Perce County, Idaho · 11 MI S of Zaza Road · Structure no. 000000000L59848

Built
1974
51 years old, rebuilt 2002
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
25
2011 count
Owner
Federal
Bureau of Land Management

About this bridge

3501: Eagle Creek over Eagle Creek is a steel stringer/multi-beam or girder carrying 3501: Eagle Creek over Eagle Creek in Nez Perce County, Idaho. It was built in 1974 and reconstructed in 2002, so it is 51 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2040. The structure is 42 ft (12.7 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Carries3501: Eagle Creek
CrossesEagle Creek
Location11 MI S of Zaza Road
RouteFederal Lands Road 0
StateIdaho
Coordinates46.00028, -116.70306
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length42 ft (12.7 m)
Longest span40 ft (12.2 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2011)
Projected traffic35 by 2040
Trucks10%
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

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 3501: Eagle Creek over Eagle Creek built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2002.

What condition is 3501: Eagle Creek over Eagle Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does 3501: Eagle Creek over Eagle Creek carry?

About 25 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 3501: Eagle Creek over Eagle Creek?

The structure is 42 ft (12.7 m) long with a longest span of 40 ft (12.2 m) and a deck 14 ft wide.

Who owns 3501: Eagle Creek over Eagle Creek?

It is owned by the Bureau of Land Management.