US Bridges

US 97 over Gn Rr-County Road

Good

Okanogan County, Washington · 4.1 N JCT SR 20 · Structure no. 0007309A0000000

Built
1964
61 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
276 ft
4 main spans
Daily traffic
7,453
2023 count
Owner
State
State Highway Agency

About this bridge

US 97 over Gn Rr-County Road is a concrete continuous box beam or girders - multiple carrying US 97 over Gn Rr-County Road in Okanogan County, Washington. It was built in 1964, so it is 61 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 7,453 vehicles a day, roughly 9% of them trucks, projected to reach 8,747 by 2039. The structure is 276 ft (84.1 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 97
CrossesGn Rr-County Road
Location4.1 N JCT SR 20
RouteU.S. Route 97
Coordinates48.39147, -119.529
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating75 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length276 ft (84.1 m)
Longest span73 ft (22.3 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,453 (2023)
Projected traffic8,747 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed6.2 mi (10 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$4.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 97 over Gn Rr-County Road built?

It was built in 1964, making it 61 years old in 2025.

What condition is US 97 over Gn Rr-County Road 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 Gn Rr-County Road carry?

About 7,453 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 97 over Gn Rr-County Road?

The structure is 276 ft (84.1 m) long with a longest span of 73 ft (22.3 m) and a deck 34 ft wide.

Who owns US 97 over Gn Rr-County Road?

It is owned by the State Highway Agency.