US Bridges

Jones Road over So. Fork Chehalis River

Fair

Lewis County, Washington · 6.0 S Boistfort · Structure no. 087220000000000

Built
2004
21 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Jones Road over So. Fork Chehalis River is a prestressed concrete continuous stringer/multi-beam or girder carrying Jones Road over So. Fork Chehalis River in Lewis County, Washington. It was built in 2004, so it is 21 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 11 vehicles a day, roughly 27% of them trucks, projected to reach 20 by 2042. The structure is 130 ft (39.6 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesJones Road
CrossesSo. Fork Chehalis River
Location6.0 S Boistfort
RouteCounty Highway 25201
Coordinates46.47389, -123.09962
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating71 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span65 ft (19.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic20 by 2042
Trucks27%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Jones Road over So. Fork Chehalis River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Jones Road over So. Fork Chehalis River 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 December 2022.

How much traffic does Jones Road over So. Fork Chehalis River carry?

About 11 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is Jones Road over So. Fork Chehalis River?

The structure is 130 ft (39.6 m) long with a longest span of 65 ft (19.8 m) and a deck 27 ft wide.

Who owns Jones Road over So. Fork Chehalis River?

It is owned by the County Highway Agency.