US Bridges

Kelley Road over Middle Fork Satsop River

Good

Grays Harbor County, Washington · 00.2 NW JCT 7365 · Structure no. 086354000000000

Built
1997
28 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
150
2021 count
Owner
County
County Highway Agency

About this bridge

Kelley Road over Middle Fork Satsop River is a prestressed concrete stringer/multi-beam or girder carrying Kelley Road over Middle Fork Satsop River in Grays Harbor County, Washington. It was built in 1997, so it is 28 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 150 vehicles a day, roughly 23% of them trucks, projected to reach 183 by 2041. The structure is 130 ft (39.7 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesKelley Road
CrossesMiddle Fork Satsop River
Location00.2 NW JCT 7365
RouteCounty Highway 73710
Coordinates47.22413, -123.51312
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length130 ft (39.7 m)
Longest span124 ft (37.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic183 by 2041
Trucks23%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kelley Road over Middle Fork Satsop River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Kelley Road over Middle Fork Satsop 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 February 2024.

How much traffic does Kelley Road over Middle Fork Satsop River carry?

About 150 vehicles per day (2021 count), of which roughly 23% are trucks.

How long is Kelley Road over Middle Fork Satsop River?

The structure is 130 ft (39.7 m) long with a longest span of 124 ft (37.8 m) and a deck 27 ft wide.

Who owns Kelley Road over Middle Fork Satsop River?

It is owned by the County Highway Agency.