US Bridges

STC5711;ST Joe Rvr over Falls Creek

Good

Shoshone County, Idaho · 15.6 E. St. Maries · Structure no. 000000000020350

Built
1984
41 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
930
2023 count
Owner
County
County Highway Agency

About this bridge

STC5711;ST Joe Rvr over Falls Creek is a concrete continuous box beam or girders - multiple carrying STC5711;ST Joe Rvr over Falls Creek in Shoshone County, Idaho. It was built in 1984, so it is 41 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 930 vehicles a day, roughly 22% of them trucks, projected to reach 1,395 by 2042. The structure is 140 ft (42.7 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSTC5711;ST Joe Rvr
CrossesFalls Creek
Location15.6 E. St. Maries
RouteCounty Highway 5711
StateIdaho
Coordinates47.32067, -116.29762
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating45 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span91 ft (27.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic930 (2023)
Projected traffic1,395 by 2042
Trucks22%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was STC5711;ST Joe Rvr over Falls Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is STC5711;ST Joe Rvr over Falls 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 2024.

How much traffic does STC5711;ST Joe Rvr over Falls Creek carry?

About 930 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is STC5711;ST Joe Rvr over Falls Creek?

The structure is 140 ft (42.7 m) long with a longest span of 91 ft (27.7 m) and a deck 35 ft wide.

Who owns STC5711;ST Joe Rvr over Falls Creek?

It is owned by the County Highway Agency.