US Bridges

E Fork Road over Star Hope Creek

Fair

Custer County, Idaho · 14.6 W. Mackay · Structure no. 000000000033395

Built
1980
45 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
25
2023 count
Owner
Local
Other Local Agency

About this bridge

E Fork Road over Star Hope Creek is a steel stringer/multi-beam or girder carrying E Fork Road over Star Hope Creek in Custer County, Idaho. It was built in 1980, so it is 45 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 25 vehicles a day, roughly 5% of them trucks, projected to reach 38 by 2039. The structure is 54 ft (16.5 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesE Fork Road
CrossesStar Hope Creek
Location14.6 W. Mackay
RouteCounty Highway 0
StateIdaho
Coordinates43.85939, -113.89589
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span53 ft (16.2 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic38 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 E Fork Road over Star Hope Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is E Fork Road over Star Hope 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 July 2023.

How much traffic does E Fork Road over Star Hope Creek carry?

About 25 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is E Fork Road over Star Hope Creek?

The structure is 54 ft (16.5 m) long with a longest span of 53 ft (16.2 m) and a deck 28 ft wide.

Who owns E Fork Road over Star Hope Creek?

It is owned by the Other Local Agency.