US Bridges

Butte Road over Squaw Creek

Fair

Gem County, Idaho · 0.4 S. 0.4 W. Sweet · Structure no. 000000000028156

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
130
2023 count
Owner
County
County Highway Agency

About this bridge

Butte Road over Squaw Creek is a prestressed concrete tee beam carrying Butte Road over Squaw Creek in Gem County, Idaho. It was built in 2006, so it is 19 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 130 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2039. The structure is 92 ft (28 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesButte Road
CrossesSquaw Creek
Location0.4 S. 0.4 W. Sweet
RouteCounty Highway 0
StateIdaho
Coordinates43.9665, -116.33242
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2023)
Projected traffic195 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Butte Road over Squaw Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Butte Road over Squaw 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 2024.

How much traffic does Butte Road over Squaw Creek carry?

About 130 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Butte Road over Squaw Creek?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 27 ft wide.

Who owns Butte Road over Squaw Creek?

It is owned by the County Highway Agency.