US Bridges

Cavanaugh Bay Road over Soldier Creek

Good

Bonner County, Idaho · 22.6 N. Priest River · Structure no. 000000000030248

Built
2017
8 years old
Condition
Good
inspected July 2023
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
1,900
2023 count
Owner
County
County Highway Agency

About this bridge

Cavanaugh Bay Road over Soldier Creek is a steel culvert carrying Cavanaugh Bay Road over Soldier Creek in Bonner County, Idaho. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,900 vehicles a day, roughly 1% of them trucks, projected to reach 2,850 by 2042. The structure is 25 ft (7.6 m) long and 60 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCavanaugh Bay Road
CrossesSoldier Creek
Location22.6 N. Priest River
RouteCounty Highway 0
CountyBonner County
StateIdaho
Coordinates48.50542, -116.82689
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92.5 US tons
Inventory rating74 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width60 ft (18.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,850 by 2042
Trucks1%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$378,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cavanaugh Bay Road over Soldier Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cavanaugh Bay Road over Soldier 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 Cavanaugh Bay Road over Soldier Creek carry?

About 1,900 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Cavanaugh Bay Road over Soldier Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 60 ft wide.

Who owns Cavanaugh Bay Road over Soldier Creek?

It is owned by the County Highway Agency.