US Bridges

Pehl Road over So Fork Willapa

Good

Pacific County, Washington · 2.48 S JCT SR 6 · Structure no. 080858000000000

Built
1991
34 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
107 ft
1 main span
Daily traffic
18
2023 count
Owner
County
County Highway Agency

About this bridge

Pehl Road over So Fork Willapa is a prestressed concrete continuous stringer/multi-beam or girder carrying Pehl Road over So Fork Willapa in Pacific County, Washington. It was built in 1991, so it is 34 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 18 vehicles a day, projected to reach 10 by 2043. The structure is 107 ft (32.6 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesPehl Road
CrossesSo Fork Willapa
Location2.48 S JCT SR 6
RouteCounty Highway 46810
CountyPacific County
StateWashington
Coordinates46.62919, -123.69775
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length107 ft (32.6 m)
Longest span97 ft (29.6 m)
Deck width19 ft (5.8 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2023)
Projected traffic10 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$915,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pehl Road over So Fork Willapa built?

It was built in 1991, making it 34 years old in 2025.

What condition is Pehl Road over So Fork Willapa 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 2023.

How much traffic does Pehl Road over So Fork Willapa carry?

About 18 vehicles per day (2023 count).

How long is Pehl Road over So Fork Willapa?

The structure is 107 ft (32.6 m) long with a longest span of 97 ft (29.6 m) and a deck 19 ft wide.

Who owns Pehl Road over So Fork Willapa?

It is owned by the County Highway Agency.