US Bridges

US 97 over First Creek

Good

Chelan County, Washington · 9.0 N JCT US 97 Alt · Structure no. 0015563A0000000

Built
1999
26 years old
Condition
Good
inspected July 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
1,097
2023 count
Owner
State
State Highway Agency

About this bridge

US 97 over First Creek is a prestressed concrete stringer/multi-beam or girder carrying US 97 over First Creek in Chelan County, Washington. It was built in 1999, so it is 26 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 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 1,097 vehicles a day, roughly 8% of them trucks, projected to reach 1,389 by 2039. The structure is 72 ft (21.9 m) long and 48 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesUS 97
CrossesFirst Creek
Location9.0 N JCT US 97 Alt
RouteState Highway 971
Coordinates47.87349, -120.20179
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 inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length72 ft (21.9 m)
Longest span66 ft (20.1 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,097 (2023)
Projected traffic1,389 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

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 First Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 97 over First 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 July 2021.

How much traffic does US 97 over First Creek carry?

About 1,097 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 97 over First Creek?

The structure is 72 ft (21.9 m) long with a longest span of 66 ft (20.1 m) and a deck 48 ft wide.

Who owns US 97 over First Creek?

It is owned by the State Highway Agency.