US Bridges

Lebam Road over Willapa River

Fair

Pacific County, Washington · 13.0 SE JCT US 101 · Structure no. 086132000000000

Built
1917
108 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
161 ft
2 main spans
Daily traffic
72
2023 count
Owner
County
County Highway Agency

About this bridge

Lebam Road over Willapa River is a concrete culvert carrying Lebam Road over Willapa River in Pacific 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 72 vehicles a day, roughly 5% of them trucks, projected to reach 107 by 2043. The structure is 161 ft (49.1 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLebam Road
CrossesWillapa River
Location13.0 SE JCT US 101
RouteCounty Highway 48440
CountyPacific County
StateWashington
Coordinates46.56278, -123.56219
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length161 ft (49.1 m)
Longest span60 ft (18.3 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2023)
Projected traffic107 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of relocation of road
Estimated improvement cost$4.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lebam Road over Willapa River built?

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

What condition is Lebam Road over Willapa River 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 Lebam Road over Willapa River carry?

About 72 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Lebam Road over Willapa River?

The structure is 161 ft (49.1 m) long with a longest span of 60 ft (18.3 m) and a deck 19 ft wide.

Who owns Lebam Road over Willapa River?

It is owned by the County Highway Agency.