US Bridges

County Road 1000 over Cottonwood Creek

Good

Asotin County, Washington · 2.25 E. Cougar Cr. Rd. · Structure no. 089279000000000

Built
2021
4 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
78
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 1000 over Cottonwood Creek is a concrete culvert carrying County Road 1000 over Cottonwood Creek in Asotin County, Washington. It was built in 2021, so it is 4 years old, younger than the Washington average of 49.8 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 78 vehicles a day, roughly 89% of them trucks, projected to reach 94 by 2043. The structure is 21 ft (6.4 m) long and 37 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 1000
CrossesCottonwood Creek
Location2.25 E. Cougar Cr. Rd.
RouteCounty Highway 100
CountyAsotin County
StateWashington
Coordinates46.03906, -117.29574
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width37 ft (11.3 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2021)
Projected traffic94 by 2043
Trucks89%
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$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 1000 over Cottonwood Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is County Road 1000 over Cottonwood 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 April 2024.

How much traffic does County Road 1000 over Cottonwood Creek carry?

About 78 vehicles per day (2021 count), of which roughly 89% are trucks.

How long is County Road 1000 over Cottonwood Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 37 ft wide.

Who owns County Road 1000 over Cottonwood Creek?

It is owned by the County Highway Agency.