US Bridges

Mohler Road over Coal Creek

Fair

Lincoln County, Washington · 3.25 W JCT FASG221 · Structure no. 080577000000000

Built
1936
89 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
3 main spans
Daily traffic
107
2022 count
Owner
County
County Highway Agency

About this bridge

Mohler Road over Coal Creek is a steel stringer/multi-beam or girder carrying Mohler Road over Coal Creek in Lincoln County, Washington. It was built in 1936, so it is 89 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 6 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 107 vehicles a day, roughly 47% of them trucks, projected to reach 120 by 2044. The structure is 54 ft (16.5 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesMohler Road
CrossesCoal Creek
Location3.25 W JCT FASG221
RouteCounty Highway 34560
CountyLincoln County
StateWashington
Coordinates47.4065, -118.31939
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum 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 rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans3
Design loadH 15
Structure length54 ft (16.5 m)
Longest span48 ft (14.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107 (2022)
Projected traffic120 by 2044
Trucks47%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$2.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mohler Road over Coal Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Mohler 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 Mohler Road over Coal Creek carry?

About 107 vehicles per day (2022 count), of which roughly 47% are trucks.

How long is Mohler Road over Coal Creek?

The structure is 54 ft (16.5 m) long with a longest span of 48 ft (14.6 m) and a deck 24 ft wide.

Who owns Mohler Road over Coal Creek?

It is owned by the County Highway Agency.