US Bridges

Empire Creek Road over Curlew Creek

Good

Ferry County, Washington · 0.14 W SR21 · Structure no. 087047000000000

Built
1999
26 years old
Condition
Good
inspected June 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
101
2018 count
Owner
County
County Highway Agency

About this bridge

Empire Creek Road over Curlew Creek is a steel culvert carrying Empire Creek Road over Curlew Creek in Ferry County, Washington. It was built in 1999, so it is 26 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 101 vehicles a day, roughly 5% of them trucks, projected to reach 155 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesEmpire Creek Road
CrossesCurlew Creek
Location0.14 W SR21
RouteCounty Highway 5520
Coordinates48.82893, -118.59266
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2018)
Projected traffic155 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$309,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Empire Creek Road over Curlew Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Empire Creek Road 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 June 2024.

How much traffic does Empire Creek Road over Curlew Creek carry?

About 101 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Empire Creek Road over Curlew Creek?

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

Who owns Empire Creek Road over Curlew Creek?

It is owned by the County Highway Agency.