US Bridges

East Fork Road over Hyndman Creek

GoodPosted for load

Blaine County, Idaho · 0.6 E. Triumph · Structure no. 000000000023741

Built
1994
31 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
32 ft
1 main span
Daily traffic
700
2023 count
Owner
County
County Highway Agency

About this bridge

East Fork Road over Hyndman Creek is a wood or timber stringer/multi-beam or girder carrying East Fork Road over Hyndman Creek in Blaine County, Idaho. It was built in 1994, so it is 31 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 700 vehicles a day, roughly 5% of them trucks, projected to reach 1,050 by 2039. The structure is 32 ft (9.8 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesEast Fork Road
CrossesHyndman Creek
Location0.6 E. Triumph
RouteCounty Highway 0
StateIdaho
Coordinates43.64428, -114.24506
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating25 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2023)
Projected traffic1,050 by 2039
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$454,000
NavigationNo navigation control on waterway

Frequently asked questions

When was East Fork Road over Hyndman Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is East Fork Road over Hyndman 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 September 2024.

How much traffic does East Fork Road over Hyndman Creek carry?

About 700 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is East Fork Road over Hyndman Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 27 ft wide.

Who owns East Fork Road over Hyndman Creek?

It is owned by the County Highway Agency.