US Bridges

US 97 over Dry Gulch

Good

Douglas County, Washington · 3.9 N JCT US 97 Spur · Structure no. 0001743A0000000

Built
1933
92 years old, rebuilt 1988
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
5,738
2023 count
Owner
State
State Highway Agency

About this bridge

US 97 over Dry Gulch is a concrete tee beam carrying US 97 over Dry Gulch in Douglas County, Washington. It was built in 1933 and reconstructed in 1988, so it is 92 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 5,738 vehicles a day, roughly 15% of them trucks, projected to reach 6,667 by 2039. The structure is 42 ft (12.8 m) long and 39 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 97
CrossesDry Gulch
Location3.9 N JCT US 97 Spur
RouteU.S. Route 97
Coordinates47.67751, -120.19744
Functional classRural Principal Arterial - Other

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 inspectionJuly 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,738 (2023)
Projected traffic6,667 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

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$818,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 97 over Dry Gulch built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1988.

What condition is US 97 over Dry Gulch 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 July 2023.

How much traffic does US 97 over Dry Gulch carry?

About 5,738 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 97 over Dry Gulch?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 39 ft wide.

Who owns US 97 over Dry Gulch?

It is owned by the State Highway Agency.