US Bridges

Kaputa Road over Duck Creek

Good

Lincoln County, Washington · 5.48 W SR 28 · Structure no. 086243000000000

Built
1996
29 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
60 ft
1 main span
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

Kaputa Road over Duck Creek is a prestressed concrete continuous tee beam carrying Kaputa Road over Duck Creek in Lincoln County, Washington. It was built in 1996, so it is 29 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 15 vehicles a day, roughly 40% of them trucks, projected to reach 50 by 2042. The structure is 60 ft (18.3 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesKaputa Road
CrossesDuck Creek
Location5.48 W SR 28
RouteCounty Highway 24840
Coordinates47.37897, -118.55108
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic50 by 2042
Trucks40%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaputa Road over Duck Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Kaputa Road over Duck 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 Kaputa Road over Duck Creek carry?

About 15 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is Kaputa Road over Duck Creek?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 31 ft wide.

Who owns Kaputa Road over Duck Creek?

It is owned by the County Highway Agency.