US Bridges

NE Vernon RD over Washougal River

Good

Clark County, Washington · Int Washougal R RD · Structure no. 086441000000000

Built
1998
27 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
126 ft
1 main span
Daily traffic
1,003
2021 count
Owner
County
County Highway Agency

About this bridge

NE Vernon RD over Washougal River is a prestressed concrete continuous tee beam carrying NE Vernon RD over Washougal River in Clark County, Washington. It was built in 1998, so it is 27 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,003 vehicles a day, roughly 1% of them trucks, projected to reach 2,404 by 2043. The structure is 126 ft (38.4 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNE Vernon RD
CrossesWashougal River
LocationInt Washougal R RD
RouteCounty Highway 32870
Coordinates45.62525, -122.28283
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckOther
Main spans1
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span125 ft (38 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,003 (2021)
Projected traffic2,404 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NE Vernon RD over Washougal River built?

It was built in 1998, making it 27 years old in 2025.

What condition is NE Vernon RD over Washougal River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does NE Vernon RD over Washougal River carry?

About 1,003 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is NE Vernon RD over Washougal River?

The structure is 126 ft (38.4 m) long with a longest span of 125 ft (38 m) and a deck 35 ft wide.

Who owns NE Vernon RD over Washougal River?

It is owned by the County Highway Agency.