US Bridges

Grouse Creek RD over Grouse Creek

Fair

Bonner County, Idaho · 0.6 N. 4.2 E. Samuels · Structure no. 000000000030190

Built
1987
38 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Grouse Creek RD over Grouse Creek is a prestressed concrete stringer/multi-beam or girder carrying Grouse Creek RD over Grouse Creek in Bonner County, Idaho. It was built in 1987, so it is 38 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 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 94 ft (28.7 m) long and 27 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesGrouse Creek RD
CrossesGrouse Creek
Location0.6 N. 4.2 E. Samuels
RouteCounty Highway 0
StateIdaho
Coordinates48.43753, -116.39678
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span93 ft (28.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 Grouse Creek RD over Grouse Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Grouse Creek RD over Grouse 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 October 2024.

How much traffic does Grouse Creek RD over Grouse Creek carry?

About 30 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is Grouse Creek RD over Grouse Creek?

The structure is 94 ft (28.7 m) long with a longest span of 93 ft (28.3 m) and a deck 27 ft wide.

Who owns Grouse Creek RD over Grouse Creek?

It is owned by the County Highway Agency.