US Bridges

Medimont Road over Cave Lake Channel

Fair

Kootenai County, Idaho · 0.4 S. 0.5 E. Medimont · Structure no. 000000000030496

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
50
2023 count
Owner
Local
Other Local Agency

About this bridge

Medimont Road over Cave Lake Channel is a prestressed concrete tee beam carrying Medimont Road over Cave Lake Channel in Kootenai County, Idaho. It was built in 1991, so it is 34 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 75 by 2039. The structure is 55 ft (16.8 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMedimont Road
CrossesCave Lake Channel
Location0.4 S. 0.5 E. Medimont
RouteCounty Highway 0
CountyKootenai County
StateIdaho
Coordinates47.47053, -116.59253
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating34.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$575,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Medimont Road over Cave Lake Channel built?

It was built in 1991, making it 34 years old in 2025.

What condition is Medimont Road over Cave Lake Channel 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 September 2023.

How much traffic does Medimont Road over Cave Lake Channel carry?

About 50 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Medimont Road over Cave Lake Channel?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 18 ft wide.

Who owns Medimont Road over Cave Lake Channel?

It is owned by the Other Local Agency.