US Bridges

Morse Road over Sulphur Creek Wasteway

FairPosted for load

Yakima County, Washington · 00.07 E Midvale RD · Structure no. 081558000000000

Built
1978
47 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
317
2023 count
Owner
County
County Highway Agency

About this bridge

Morse Road over Sulphur Creek Wasteway is a prestressed concrete stringer/multi-beam or girder carrying Morse Road over Sulphur Creek Wasteway in Yakima County, Washington. It was built in 1978, so it is 47 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. Its operating status is: posted for load restriction.

It carries about 317 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2043. The structure is 77 ft (23.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMorse Road
CrossesSulphur Creek Wasteway
Location00.07 E Midvale RD
RouteCounty Highway 61720
Coordinates46.26571, -120.0189
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating7.8 US tons
Inventory rating6.1 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span76 ft (23.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic317 (2023)
Projected traffic480 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Morse Road over Sulphur Creek Wasteway built?

It was built in 1978, making it 47 years old in 2025.

What condition is Morse Road over Sulphur Creek Wasteway 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 February 2023.

How much traffic does Morse Road over Sulphur Creek Wasteway carry?

About 317 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Morse Road over Sulphur Creek Wasteway?

The structure is 77 ft (23.5 m) long with a longest span of 76 ft (23.2 m) and a deck 32 ft wide.

Who owns Morse Road over Sulphur Creek Wasteway?

It is owned by the County Highway Agency.