US Bridges

SR 10 over Hand Drain Ditch

Fair

Kittitas County, Washington · 16.0 E JCT SR 970 · Structure no. 0001367A0000000

Built
1930
95 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
62 ft
3 main spans
Daily traffic
1,686
2023 count
Owner
State
State Highway Agency

About this bridge

SR 10 over Hand Drain Ditch is a concrete continuous slab carrying SR 10 over Hand Drain Ditch in Kittitas County, Washington. It was built in 1930, so it is 95 years old, older 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 5 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 1,686 vehicles a day, roughly 13% of them trucks, projected to reach 2,059 by 2039. The structure is 62 ft (18.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 10
CrossesHand Drain Ditch
Location16.0 E JCT SR 970
RouteState Highway 10
CountyKittitas County
StateWashington
Coordinates47.03833, -120.61633
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length62 ft (18.9 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,686 (2023)
Projected traffic2,059 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$884,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 10 over Hand Drain Ditch built?

It was built in 1930, making it 95 years old in 2025.

What condition is SR 10 over Hand Drain Ditch 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 June 2023.

How much traffic does SR 10 over Hand Drain Ditch carry?

About 1,686 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SR 10 over Hand Drain Ditch?

The structure is 62 ft (18.9 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns SR 10 over Hand Drain Ditch?

It is owned by the State Highway Agency.