US Bridges

Katon Road over Peels Slough

Fair

Grays Harbor County, Washington · 0.6 S JCT 5294 · Structure no. 081738000000000

Built
1976
49 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
63 ft
3 main spans
Daily traffic
215
2023 count
Owner
County
County Highway Agency

About this bridge

Katon Road over Peels Slough is a prestressed concrete slab carrying Katon Road over Peels Slough in Grays Harbor County, Washington. It was built in 1976, so it is 49 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 215 vehicles a day, roughly 5% of them trucks, projected to reach 262 by 2043. The structure is 63 ft (19.2 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesKaton Road
CrossesPeels Slough
Location0.6 S JCT 5294
RouteCounty Highway 57192
CountyGrays Harbor County
StateWashington
Coordinates46.95633, -123.6394
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length63 ft (19.2 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic215 (2023)
Projected traffic262 by 2043
Trucks5%
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$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Katon Road over Peels Slough built?

It was built in 1976, making it 49 years old in 2025.

What condition is Katon Road over Peels Slough 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 November 2023.

How much traffic does Katon Road over Peels Slough carry?

About 215 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Katon Road over Peels Slough?

The structure is 63 ft (19.2 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns Katon Road over Peels Slough?

It is owned by the County Highway Agency.