US Bridges

Gleason Road over Satsop Overflow Channel

Good

Grays Harbor County, Washington · 0.12 E JCT 9725 · Structure no. 086633000000000

Built
2001
24 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Gleason Road over Satsop Overflow Channel is a concrete slab carrying Gleason Road over Satsop Overflow Channel in Grays Harbor County, Washington. It was built in 2001, so it is 24 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 43 by 2044. The structure is 30 ft (9.1 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesGleason Road
CrossesSatsop Overflow Channel
Location0.12 E JCT 9725
RouteCounty Highway 73120
Coordinates47.00972, -123.51451
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating68 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic43 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRelief for waterway
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$988,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gleason Road over Satsop Overflow Channel built?

It was built in 2001, making it 24 years old in 2025.

What condition is Gleason Road over Satsop Overflow Channel 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 2024.

How much traffic does Gleason Road over Satsop Overflow Channel carry?

About 35 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Gleason Road over Satsop Overflow Channel?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 18 ft wide.

Who owns Gleason Road over Satsop Overflow Channel?

It is owned by the County Highway Agency.