US Bridges

SR 174 over Corbett Draw

Good

Lincoln County, Washington · 14.1 E Grant CO · Structure no. 0004232A0000000

Built
1952
73 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
105 ft
5 main spans
Daily traffic
1,827
2023 count
Owner
State
State Highway Agency

About this bridge

SR 174 over Corbett Draw is a concrete continuous slab carrying SR 174 over Corbett Draw in Lincoln County, Washington. It was built in 1952, so it is 73 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 1,827 vehicles a day, roughly 14% of them trucks, projected to reach 2,011 by 2039. The structure is 105 ft (32 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 174
CrossesCorbett Draw
Location14.1 E Grant CO
RouteState Highway 174
Coordinates47.80788, -118.7651
Functional classRural Major Collector

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length105 ft (32 m)
Longest span22 ft (6.7 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,827 (2023)
Projected traffic2,011 by 2039
Trucks14%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 174 over Corbett Draw built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR 174 over Corbett Draw 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 June 2024.

How much traffic does SR 174 over Corbett Draw carry?

About 1,827 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 174 over Corbett Draw?

The structure is 105 ft (32 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns SR 174 over Corbett Draw?

It is owned by the State Highway Agency.