US Bridges

E Blue Lake RD over Thompson Lake Outlet Br

Fair

Kootenai County, Idaho · 2.2 N. 2.7 E. Harrison · Structure no. 000000000030585

Built
1986
39 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
48 ft
1 main span
Daily traffic
110
2023 count
Owner
Local
Other Local Agency

About this bridge

E Blue Lake RD over Thompson Lake Outlet Br is a steel girder and floorbeam system carrying E Blue Lake RD over Thompson Lake Outlet Br in Kootenai County, Idaho. It was built in 1986, so it is 39 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 110 vehicles a day, roughly 10% of them trucks, projected to reach 165 by 2042. The structure is 48 ft (14.6 m) long and 14 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE Blue Lake RD
CrossesThompson Lake Outlet Br
Location2.2 N. 2.7 E. Harrison
RouteCounty Highway 0
CountyKootenai County
StateIdaho
Coordinates47.48608, -116.72503
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39 US tons
Inventory rating25 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2023)
Projected traffic165 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$464,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E Blue Lake RD over Thompson Lake Outlet Br built?

It was built in 1986, making it 39 years old in 2025.

What condition is E Blue Lake RD over Thompson Lake Outlet Br in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does E Blue Lake RD over Thompson Lake Outlet Br carry?

About 110 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is E Blue Lake RD over Thompson Lake Outlet Br?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 14 ft wide.

Who owns E Blue Lake RD over Thompson Lake Outlet Br?

It is owned by the Other Local Agency.