US Bridges

Main Street over Coal Creek

FairPosted for load

Lincoln County, Washington · 21.9 N JCT SR 231 · Structure no. 0003371A0000000

Built
1948
77 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
26 ft
1 main span
Daily traffic
785
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over Coal Creek is a concrete tee beam carrying Main Street over Coal Creek in Lincoln County, Washington. It was built in 1948, so it is 77 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. Its operating status is: posted for load restriction.

It carries about 785 vehicles a day, roughly 15% of them trucks, projected to reach 800 by 2042. The structure is 26 ft (7.9 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMain Street
CrossesCoal Creek
Location21.9 N JCT SR 231
RouteCity Street 2300
Coordinates47.48083, -118.25882
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.4 US tons
Inventory rating15.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width37 ft (11.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic785 (2020)
Projected traffic800 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Coal Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Main Street 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 June 2024.

How much traffic does Main Street over Coal Creek carry?

About 785 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Main Street over Coal Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 37 ft wide.

Who owns Main Street over Coal Creek?

It is owned by the City or Municipal Highway Agency.