US Bridges

7-MILE Road over Coulee Creek

Good

Spokane County, Washington · 0.1 E Coulee-Hite · Structure no. 088832000000000

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
2,160
2020 count
Owner
County
County Highway Agency

About this bridge

7-MILE Road over Coulee Creek is a prestressed concrete slab carrying 7-MILE Road over Coulee Creek in Spokane County, Washington. It was built in 2016, so it is 9 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 2,160 vehicles a day, roughly 19% of them trucks, projected to reach 3,110 by 2040. The structure is 70 ft (21.3 m) long and 39 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Carries7-MILE Road
CrossesCoulee Creek
Location0.1 E Coulee-Hite
RouteCounty Highway 4444
Coordinates47.74374, -117.57806
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
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span68 ft (20.7 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,160 (2020)
Projected traffic3,110 by 2040
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was 7-MILE Road over Coulee Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is 7-MILE Road over Coulee 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 2023.

How much traffic does 7-MILE Road over Coulee Creek carry?

About 2,160 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is 7-MILE Road over Coulee Creek?

The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 39 ft wide.

Who owns 7-MILE Road over Coulee Creek?

It is owned by the County Highway Agency.