US Bridges

R SW over Waluke Branch Canal

Good

Grant County, Washington · R SW @ 23 SW · Structure no. 087119000000000

Built
1983
42 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
247
2020 count
Owner
County
County Highway Agency

About this bridge

R SW over Waluke Branch Canal is a prestressed concrete stringer/multi-beam or girder carrying R SW over Waluke Branch Canal in Grant County, Washington. It was built in 1983, so it is 42 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 247 vehicles a day, roughly 15% of them trucks, projected to reach 350 by 2042. The structure is 37 ft (11.3 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesR SW
CrossesWaluke Branch Canal
LocationR SW @ 23 SW
RouteCounty Highway 91041
Coordinates46.75203, -119.87493
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating55.7 US tons
Inventory rating33.6 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247 (2020)
Projected traffic350 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$598,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was R SW over Waluke Branch Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is R SW over Waluke Branch 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 January 2024.

How much traffic does R SW over Waluke Branch Canal carry?

About 247 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is R SW over Waluke Branch Canal?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 33 ft wide.

Who owns R SW over Waluke Branch Canal?

It is owned by the County Highway Agency.