US Bridges

Lat. C Rd. over Drain

GoodPosted for load

Yakima County, Washington · .61 N Pumphouse (i) · Structure no. 083391000000000

Built
1957
68 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
115
2021 count
Owner
County
County Highway Agency

About this bridge

Lat. C Rd. over Drain is a wood or timber stringer/multi-beam or girder carrying Lat. C Rd. over Drain in Yakima County, Washington. It was built in 1957, so it is 68 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. Its operating status is: posted for load restriction.

It carries about 115 vehicles a day, roughly 5% of them trucks, projected to reach 136 by 2041. The structure is 24 ft (7.3 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesLat. C Rd.
CrossesDrain
Location.61 N Pumphouse (i)
RouteCounty Highway 50350
Coordinates46.32599, -120.52281
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2021)
Projected traffic136 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lat. C Rd. over Drain built?

It was built in 1957, making it 68 years old in 2025.

What condition is Lat. C Rd. over Drain 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 March 2023.

How much traffic does Lat. C Rd. over Drain carry?

About 115 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Lat. C Rd. over Drain?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 27 ft wide.

Who owns Lat. C Rd. over Drain?

It is owned by the County Highway Agency.