US Bridges

Newaukum Valley RD over Allen Creek

Fair

Lewis County, Washington · 0.23 from 94006 · Structure no. 087129000000000

Built
1950
75 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
230
2022 count
Owner
County
County Highway Agency

About this bridge

Newaukum Valley RD over Allen Creek is a concrete continuous slab carrying Newaukum Valley RD over Allen Creek in Lewis County, Washington. It was built in 1950, so it is 75 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 230 vehicles a day, roughly 24% of them trucks, projected to reach 416 by 2042. The structure is 24 ft (7.3 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesNewaukum Valley RD
CrossesAllen Creek
Location0.23 from 94006
RouteCounty Highway 40028
CountyLewis County
StateWashington
Coordinates46.59992, -122.91281
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
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 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 rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2022)
Projected traffic416 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$274,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Newaukum Valley RD over Allen Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Newaukum Valley RD over Allen 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 February 2023.

How much traffic does Newaukum Valley RD over Allen Creek carry?

About 230 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Newaukum Valley RD over Allen Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 25 ft wide.

Who owns Newaukum Valley RD over Allen Creek?

It is owned by the County Highway Agency.