US Bridges

Coal Coulee Road over Coal Creek

Fair

Lincoln County, Washington · 5.13 S SR 23 · Structure no. 080827000000000

Built
1917
108 years old
Condition
Fair
inspected January 2024
Type
Other
Concrete
Length
72 ft
1 main span
Daily traffic
35
2020 count
Owner
County
County Highway Agency

About this bridge

Coal Coulee Road over Coal Creek is a concrete other carrying Coal Coulee Road over Coal Creek in Lincoln County, Washington. It was built in 1917, so it is 108 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 35 vehicles a day, roughly 40% of them trucks, projected to reach 86 by 2044. The structure is 72 ft (21.9 m) long and 22 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesCoal Coulee Road
CrossesCoal Creek
Location5.13 S SR 23
RouteCounty Highway 22250
Coordinates47.41994, -118.30742
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating15 US tons

Structure

Structure typeOther
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length72 ft (21.9 m)
Longest span48 ft (14.6 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2020)
Projected traffic86 by 2044
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Coal Coulee Road over Coal Creek built?

It was built in 1917, making it 108 years old in 2025.

What condition is Coal Coulee Road over Coal 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 January 2024.

How much traffic does Coal Coulee Road over Coal Creek carry?

About 35 vehicles per day (2020 count), of which roughly 40% are trucks.

How long is Coal Coulee Road over Coal Creek?

The structure is 72 ft (21.9 m) long with a longest span of 48 ft (14.6 m) and a deck 22 ft wide.

Who owns Coal Coulee Road over Coal Creek?

It is owned by the County Highway Agency.