US Bridges

W Curlew Lake RD over Curlew Creek

Good

Ferry County, Washington · 0.1 W SR 21 · Structure no. 089535000000000

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
24 ft
1 main span
Daily traffic
1,074
2024 count
Owner
County
County Highway Agency

About this bridge

W Curlew Lake RD over Curlew Creek is a aluminum, wrought iron, or cast iron culvert carrying W Curlew Lake RD over Curlew Creek in Ferry County, Washington. It was built in 2024, so it is 1 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 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 1,074 vehicles a day, roughly 3% of them trucks, projected to reach 1,200 by 2044. The structure is 24 ft (7.3 m) long and 64 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesW Curlew Lake RD
CrossesCurlew Creek
Location0.1 W SR 21
RouteCounty Highway 2030
Coordinates48.77377, -118.64735
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.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width64 ft (19.6 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,074 (2024)
Projected traffic1,200 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W Curlew Lake RD over Curlew Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is W Curlew Lake RD over Curlew 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 October 2024.

How much traffic does W Curlew Lake RD over Curlew Creek carry?

About 1,074 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is W Curlew Lake RD over Curlew Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 64 ft wide.

Who owns W Curlew Lake RD over Curlew Creek?

It is owned by the County Highway Agency.