US Bridges

Reservoir Loop over Canal - NO.1 Lateral

Good

Yakima County, Washington · 00.38 W Speyers RD · Structure no. 083754000000000

Built
1992
33 years old
Condition
Good
inspected December 2022
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
130
2020 count
Owner
County
County Highway Agency

About this bridge

Reservoir Loop over Canal - NO.1 Lateral is a prestressed concrete slab carrying Reservoir Loop over Canal - NO.1 Lateral in Yakima County, Washington. It was built in 1992, so it is 33 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 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 130 vehicles a day, roughly 5% of them trucks, projected to reach 120 by 2040. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesReservoir Loop
CrossesCanal - NO.1 Lateral
Location00.38 W Speyers RD
RouteCounty Highway 12900
CountyYakima County
StateWashington
Coordinates46.67667, -120.57333
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
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 rating43.5 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2020)
Projected traffic120 by 2040
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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Reservoir Loop over Canal - NO.1 Lateral built?

It was built in 1992, making it 33 years old in 2025.

What condition is Reservoir Loop over Canal - NO.1 Lateral 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 December 2022.

How much traffic does Reservoir Loop over Canal - NO.1 Lateral carry?

About 130 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Reservoir Loop over Canal - NO.1 Lateral?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.

Who owns Reservoir Loop over Canal - NO.1 Lateral?

It is owned by the County Highway Agency.