US Bridges

IRR BIA RTE 24 over Little Hangman Creek

Good

Benewah County, Idaho · 9.6 KM SW of Agency · Structure no. 00000000000P508

Built
1998
27 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
25
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 24 over Little Hangman Creek is a prestressed concrete tee beam carrying IRR BIA RTE 24 over Little Hangman Creek in Benewah County, Idaho. It was built in 1998, so it is 27 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.

It carries about 25 vehicles a day, roughly 35% of them trucks, projected to reach 50 by 2041. The structure is 59 ft (18 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIRR BIA RTE 24
CrossesLittle Hangman Creek
Location9.6 KM SW of Agency
RouteFederal Lands Road 24
StateIdaho
Coordinates47.24799, -117.02502
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 rating35.9 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span58 ft (17.7 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2021)
Projected traffic50 by 2041
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR BIA RTE 24 over Little Hangman Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is IRR BIA RTE 24 over Little Hangman 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 June 2023.

How much traffic does IRR BIA RTE 24 over Little Hangman Creek carry?

About 25 vehicles per day (2021 count), of which roughly 35% are trucks.

How long is IRR BIA RTE 24 over Little Hangman Creek?

The structure is 59 ft (18 m) long with a longest span of 58 ft (17.7 m) and a deck 30 ft wide.

Who owns IRR BIA RTE 24 over Little Hangman Creek?

It is owned by the Bureau of Indian Affairs.