US Bridges

Lowe Road over Coal Creek

Fair

Lincoln County, Washington · 0.14 S SR 28 · Structure no. 084836000000000

Built
1917
108 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
87
2020 count
Owner
County
County Highway Agency

About this bridge

Lowe Road over Coal Creek is a concrete tee beam carrying Lowe 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 87 vehicles a day, roughly 40% of them trucks, projected to reach 120 by 2042. The structure is 42 ft (12.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLowe Road
CrossesCoal Creek
Location0.14 S SR 28
RouteCounty Highway 21960
Coordinates47.361, -118.47817
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2020)
Projected traffic120 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lowe Road over Coal Creek built?

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

What condition is Lowe 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 December 2023.

How much traffic does Lowe Road over Coal Creek carry?

About 87 vehicles per day (2020 count), of which roughly 40% are trucks.

How long is Lowe Road over Coal Creek?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns Lowe Road over Coal Creek?

It is owned by the County Highway Agency.