US Bridges

Stc 5788;RIVER RD over Clark Fork River

Fair

Bonner County, Idaho · 0.6 S. 0.3 W. Clark Fork · Structure no. 000000000030127

Built
2004
21 years old
Condition
Fair
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,006 ft
6 main spans
Daily traffic
820
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 5788;RIVER RD over Clark Fork River is a steel continuous stringer/multi-beam or girder carrying Stc 5788;RIVER RD over Clark Fork River in Bonner County, Idaho. It was built in 2004, so it is 21 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 820 vehicles a day, roughly 6% of them trucks, projected to reach 1,230 by 2042. The structure is 1,006 ft (306.6 m) long and 30 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesStc 5788;RIVER RD
CrossesClark Fork River
Location0.6 S. 0.3 W. Clark Fork
RouteCounty Highway 5788
CountyBonner County
StateIdaho
Coordinates48.13697, -116.172
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
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 rating85 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length1,006 ft (306.6 m)
Longest span201 ft (61.3 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic820 (2023)
Projected traffic1,230 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Stc 5788;RIVER RD over Clark Fork River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Stc 5788;RIVER RD over Clark Fork River 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 June 2022.

How much traffic does Stc 5788;RIVER RD over Clark Fork River carry?

About 820 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Stc 5788;RIVER RD over Clark Fork River?

The structure is 1,006 ft (306.6 m) long with a longest span of 201 ft (61.3 m) and a deck 30 ft wide.

Who owns Stc 5788;RIVER RD over Clark Fork River?

It is owned by the County Highway Agency.