US Bridges

Road over Mccoy Creek Bridge

Good

Bonneville County, Idaho · No Data Entered · Structure no. 041504000001099

Built
1978
47 years old
Condition
Good
inspected August 2023
Type
Girder and Floorbeam System
Prestressed Concrete
Length
135 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Mccoy Creek Bridge is a prestressed concrete girder and floorbeam system carrying Road over Mccoy Creek Bridge in Bonneville County, Idaho. It was built in 1978, so it is 47 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 135 ft (41.1 m) long and 20 ft wide.

CarriesRoad
CrossesMccoy Creek Bridge
LocationNo Data Entered
RouteFederal Lands Road 50087
StateIdaho
Coordinates43.18226, -111.10766
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span131 ft (39.9 m)
Deck width20 ft (6.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Mccoy Creek Bridge built?

It was built in 1978, making it 47 years old in 2025.

What condition is Road over Mccoy Creek Bridge 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 Road over Mccoy Creek Bridge carry?

About 50 vehicles per day (latest count).

How long is Road over Mccoy Creek Bridge?

The structure is 135 ft (41.1 m) long with a longest span of 131 ft (39.9 m) and a deck 20 ft wide.

Who owns Road over Mccoy Creek Bridge?

It is owned by the U.S. Forest Service.