US Bridges

Dekay Road over Dekay Creek

Good

Grays Harbor County, Washington · 1.83 W JCT US 101 · Structure no. 087517000000000

Built
2006
19 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
192
2023 count
Owner
County
County Highway Agency

About this bridge

Dekay Road over Dekay Creek is a prestressed concrete slab carrying Dekay Road over Dekay Creek in Grays Harbor County, Washington. It was built in 2006, so it is 19 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 192 vehicles a day, roughly 10% of them trucks, projected to reach 234 by 2043. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDekay Road
CrossesDekay Creek
Location1.83 W JCT US 101
RouteCounty Highway 43920
Coordinates47.05083, -123.96278
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 2023
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 rating64.3 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192 (2023)
Projected traffic234 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dekay Road over Dekay Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Dekay Road over Dekay 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 February 2023.

How much traffic does Dekay Road over Dekay Creek carry?

About 192 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Dekay Road over Dekay Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 28 ft wide.

Who owns Dekay Road over Dekay Creek?

It is owned by the County Highway Agency.