US Bridges

Simmons Road over Wapatox Canal

Good

Yakima County, Washington · 00.02 S Cleman DR · Structure no. 080111000000000

Built
1973
52 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
155
2022 count
Owner
County
County Highway Agency

About this bridge

Simmons Road over Wapatox Canal is a prestressed concrete stringer/multi-beam or girder carrying Simmons Road over Wapatox Canal in Yakima County, Washington. It was built in 1973, so it is 52 years old, older 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 155 vehicles a day, roughly 5% of them trucks, projected to reach 169 by 2042. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSimmons Road
CrossesWapatox Canal
Location00.02 S Cleman DR
RouteCounty Highway 15850
Coordinates46.73871, -120.70451
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 inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.8 US tons
Inventory rating17.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2022)
Projected traffic169 by 2042
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Simmons Road over Wapatox Canal built?

It was built in 1973, making it 52 years old in 2025.

What condition is Simmons Road over Wapatox Canal 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 2022.

How much traffic does Simmons Road over Wapatox Canal carry?

About 155 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Simmons Road over Wapatox Canal?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 30 ft wide.

Who owns Simmons Road over Wapatox Canal?

It is owned by the County Highway Agency.