US Bridges

W Harbor Drive over Channel of Spokane River

Good

Kootenai County, Idaho · 1.4 S. 2.6 E. Post Falls · Structure no. 000000000030543

Built
2000
25 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
500
2023 count
Owner
Local
Other Local Agency

About this bridge

W Harbor Drive over Channel of Spokane River is a prestressed concrete box beam or girders - multiple carrying W Harbor Drive over Channel of Spokane River in Kootenai County, Idaho. It was built in 2000, so it is 25 years old, younger than the Idaho average of 45.3 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 750 by 2039. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesW Harbor Drive
CrossesChannel of Spokane River
Location1.4 S. 2.6 E. Post Falls
RouteCounty Highway 0
CountyKootenai County
StateIdaho
Coordinates47.69442, -116.87275
Functional classRural Local

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 above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating32 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic750 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was W Harbor Drive over Channel of Spokane River built?

It was built in 2000, making it 25 years old in 2025.

What condition is W Harbor Drive over Channel of Spokane River 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 W Harbor Drive over Channel of Spokane River carry?

About 500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is W Harbor Drive over Channel of Spokane River?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.

Who owns W Harbor Drive over Channel of Spokane River?

It is owned by the Other Local Agency.