US Bridges

US 97 over Dry Creek

Good

Kittitas County, Washington · 1.3 N JCT SR 10 · Structure no. 0018510A0000000

Built
2014
11 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
2,702
2023 count
Owner
State
State Highway Agency

About this bridge

US 97 over Dry Creek is a prestressed concrete stringer/multi-beam or girder carrying US 97 over Dry Creek in Kittitas County, Washington. It was built in 2014, so it is 11 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 2,702 vehicles a day, roughly 19% of them trucks, projected to reach 3,316 by 2039. The structure is 80 ft (24.4 m) long and 43 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 97
CrossesDry Creek
Location1.3 N JCT SR 10
RouteU.S. Route 97
Coordinates47.05209, -120.61302
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span75 ft (22.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,702 (2023)
Projected traffic3,316 by 2039
Trucks19%
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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 97 over Dry Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 97 over Dry Creek 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 2022.

How much traffic does US 97 over Dry Creek carry?

About 2,702 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is US 97 over Dry Creek?

The structure is 80 ft (24.4 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.

Who owns US 97 over Dry Creek?

It is owned by the State Highway Agency.