US Bridges

North Valley Road over Dog Creek

Good

Pacific County, Washington · 2.9 E JCT 4 & 401 · Structure no. 081446000000000

Built
1984
41 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
74
2023 count
Owner
County
County Highway Agency

About this bridge

North Valley Road over Dog Creek is a prestressed concrete stringer/multi-beam or girder carrying North Valley Road over Dog Creek in Pacific County, Washington. It was built in 1984, so it is 41 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 74 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2043. The structure is 72 ft (21.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNorth Valley Road
CrossesDog Creek
Location2.9 E JCT 4 & 401
RouteCounty Highway 91280
Coordinates46.37339, -123.74758
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating60 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span68 ft (20.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (2023)
Projected traffic300 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$958,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North Valley Road over Dog Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is North Valley Road over Dog Creek 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 June 2024.

How much traffic does North Valley Road over Dog Creek carry?

About 74 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is North Valley Road over Dog Creek?

The structure is 72 ft (21.9 m) long with a longest span of 68 ft (20.7 m) and a deck 32 ft wide.

Who owns North Valley Road over Dog Creek?

It is owned by the County Highway Agency.