US Bridges

North Fork Road over N Fork Newaukum R

Fair

Lewis County, Washington · 0.7 NE JCT 94000 · Structure no. 086517000000000

Built
2000
25 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
300 ft
2 main spans
Daily traffic
1,259
2021 count
Owner
County
County Highway Agency

About this bridge

North Fork Road over N Fork Newaukum R is a concrete continuous box beam or girders - multiple carrying North Fork Road over N Fork Newaukum R in Lewis County, Washington. It was built in 2000, so it is 25 years old, younger 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 1,259 vehicles a day, roughly 21% of them trucks, projected to reach 2,274 by 2041. The structure is 300 ft (91.4 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNorth Fork Road
CrossesN Fork Newaukum R
Location0.7 NE JCT 94000
RouteCounty Highway 46000
Coordinates46.60792, -122.85217
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating108 US tons
Inventory rating63.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length300 ft (91.4 m)
Longest span149 ft (45.4 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,259 (2021)
Projected traffic2,274 by 2041
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$4.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North Fork Road over N Fork Newaukum R built?

It was built in 2000, making it 25 years old in 2025.

What condition is North Fork Road over N Fork Newaukum R 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 2024.

How much traffic does North Fork Road over N Fork Newaukum R carry?

About 1,259 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is North Fork Road over N Fork Newaukum R?

The structure is 300 ft (91.4 m) long with a longest span of 149 ft (45.4 m) and a deck 36 ft wide.

Who owns North Fork Road over N Fork Newaukum R?

It is owned by the County Highway Agency.