US Bridges

Fs Route No. 400 over Svee Creek

Good

Shoshone County, Idaho · 19.5 MI Form Babins Jct. · Structure no. 010401000000054

Built
1976
49 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
40
2018 count
Owner
Federal
U.S. Forest Service

About this bridge

Fs Route No. 400 over Svee Creek is a prestressed concrete stringer/multi-beam or girder carrying Fs Route No. 400 over Svee Creek in Shoshone County, Idaho. It was built in 1976, so it is 49 years old, older 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 46 ft (14.1 m) long and 24 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesFs Route No. 400
CrossesSvee Creek
Location19.5 MI Form Babins Jct.
RouteFederal Lands Road 400
StateIdaho
Coordinates47.78996, -116.12075
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length46 ft (14.1 m)
Longest span45 ft (13.7 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2018)
Projected traffic60 by 2045
Trucks—
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fs Route No. 400 over Svee Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Fs Route No. 400 over Svee 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 August 2022.

How much traffic does Fs Route No. 400 over Svee Creek carry?

About 40 vehicles per day (2018 count).

How long is Fs Route No. 400 over Svee Creek?

The structure is 46 ft (14.1 m) long with a longest span of 45 ft (13.7 m) and a deck 24 ft wide.

Who owns Fs Route No. 400 over Svee Creek?

It is owned by the U.S. Forest Service.