US Bridges

Morrison Road over Turbine Canal

Fair

Kittitas County, Washington · 01.02 E UP Bdger Pk · Structure no. 080148000000000

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
27 ft
1 main span
Daily traffic
103
2023 count
Owner
County
County Highway Agency

About this bridge

Morrison Road over Turbine Canal is a concrete continuous slab carrying Morrison Road over Turbine Canal in Kittitas 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 103 vehicles a day, roughly 45% of them trucks, projected to reach 236 by 2039. The structure is 27 ft (8.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesMorrison Road
CrossesTurbine Canal
Location01.02 E UP Bdger Pk
RouteCounty Highway 66517
CountyKittitas County
StateWashington
Coordinates46.89714, -120.32827
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckOther
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2023)
Projected traffic236 by 2039
Trucks45%
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

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 Morrison Road over Turbine Canal built?

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

What condition is Morrison Road over Turbine Canal 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 October 2023.

How much traffic does Morrison Road over Turbine Canal carry?

About 103 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is Morrison Road over Turbine Canal?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns Morrison Road over Turbine Canal?

It is owned by the County Highway Agency.