US Bridges

US 93 over Kootenai Creek

Fair

Ravalli County, Montana · 6M N Victor · Structure no. P00007066+01991

Built
2008
17 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
10,026
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 over Kootenai Creek is a prestressed concrete stringer/multi-beam or girder carrying US 93 over Kootenai Creek in Ravalli County, Montana. It was built in 2008, so it is 17 years old, younger than the Montana average of 47 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 10,026 vehicles a day, roughly 2% of them trucks, projected to reach 10,878 by 2043. The structure is 79 ft (24 m) long and 87 ft wide. If it were closed, the detour would be 78.3 mi (126 km).

Location

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CarriesUS 93
CrossesKootenai Creek
Location6M N Victor
RouteU.S. Route 93
CountyRavalli County
StateMontana
Coordinates46.51566, -114.11749
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating42 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length79 ft (24 m)
Longest span79 ft (24 m)
Deck width87 ft (26.4 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,026 (2023)
Projected traffic10,878 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed78.3 mi (126 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$151,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 93 over Kootenai Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 93 over Kootenai Creek 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 October 2024.

How much traffic does US 93 over Kootenai Creek carry?

About 10,026 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 93 over Kootenai Creek?

The structure is 79 ft (24 m) long with a longest span of 79 ft (24 m) and a deck 87 ft wide.

Who owns US 93 over Kootenai Creek?

It is owned by the State Highway Agency.