US Bridges

Mohler Road over Coal Creek

Good

Lincoln County, Washington · 1.72 W FAS G221 · Structure no. 082062000000000

Built
1973
52 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
107
2022 count
Owner
County
County Highway Agency

About this bridge

Mohler Road over Coal Creek is a prestressed concrete stringer/multi-beam or girder carrying Mohler Road over Coal Creek in Lincoln County, Washington. It was built in 1973, so it is 52 years old, older 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 107 vehicles a day, roughly 47% of them trucks, projected to reach 120 by 2044. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesMohler Road
CrossesCoal Creek
Location1.72 W FAS G221
RouteCounty Highway 34560
Coordinates47.40581, -118.28692
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 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 closed14.9 mi (24 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$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mohler Road over Coal Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Mohler Road over Coal 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 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 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns Mohler Road over Coal Creek?

It is owned by the County Highway Agency.