US Bridges

Middle Satsop Road over Harstad Creek

Good

Grays Harbor County, Washington · 5.28 N JCT 97100 · Structure no. 088957000000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
24 ft
1 main span
Daily traffic
1,424
2023 count
Owner
County
County Highway Agency

About this bridge

Middle Satsop Road over Harstad Creek is a steel culvert carrying Middle Satsop Road over Harstad Creek in Grays Harbor County, Washington. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,424 vehicles a day, roughly 25% of them trucks, projected to reach 1,737 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesMiddle Satsop Road
CrossesHarstad Creek
Location5.28 N JCT 97100
RouteCounty Highway 97250
CountyGrays Harbor County
StateWashington
Coordinates47.06289, -123.50107
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating38.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,424 (2023)
Projected traffic1,737 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Middle Satsop Road over Harstad Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Middle Satsop Road over Harstad 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 November 2023.

How much traffic does Middle Satsop Road over Harstad Creek carry?

About 1,424 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is Middle Satsop Road over Harstad Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Middle Satsop Road over Harstad Creek?

It is owned by the County Highway Agency.