US Bridges

Stc 4707;OLD HWY95 over White Bird Creek

Good

Idaho County, Idaho · 0.3 S. White Bird · Structure no. 000000000029406

Built
2013
12 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
590
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 4707;OLD HWY95 over White Bird Creek is a prestressed concrete tee beam carrying Stc 4707;OLD HWY95 over White Bird Creek in Idaho County, Idaho. It was built in 2013, so it is 12 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 590 vehicles a day, roughly 5% of them trucks, projected to reach 885 by 2042. The structure is 71 ft (21.6 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStc 4707;OLD HWY95
CrossesWhite Bird Creek
Location0.3 S. White Bird
RouteCounty Highway 4707
StateIdaho
Coordinates45.75786, -116.30933
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span67 ft (20.4 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2023)
Projected traffic885 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Stc 4707;OLD HWY95 over White Bird Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Stc 4707;OLD HWY95 over White Bird 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 July 2023.

How much traffic does Stc 4707;OLD HWY95 over White Bird Creek carry?

About 590 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Stc 4707;OLD HWY95 over White Bird Creek?

The structure is 71 ft (21.6 m) long with a longest span of 67 ft (20.4 m) and a deck 32 ft wide.

Who owns Stc 4707;OLD HWY95 over White Bird Creek?

It is owned by the Other Local Agency.