US Bridges

IRR - US 93 over Rr-Finley Creek

Fair

Missoula County, Montana · 14M N Missoula · Structure no. P00005009+06741

Built
2009
16 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
344 ft
3 main spans
Daily traffic
9,214
2023 count
Owner
State
State Highway Agency

About this bridge

IRR - US 93 over Rr-Finley Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR - US 93 over Rr-Finley Creek in Missoula County, Montana. It was built in 2009, so it is 16 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 9,214 vehicles a day, roughly 4% of them trucks, projected to reach 9,675 by 2043. The structure is 344 ft (104.9 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIRR - US 93
CrossesRr-Finley Creek
Location14M N Missoula
RouteU.S. Route 93
StateMontana
Coordinates47.07004, -114.06617
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 protection9 ExcellentNo problems noted.
Last inspectionJune 2024
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 alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating49.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length344 ft (104.9 m)
Longest span113 ft (34.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,214 (2023)
Projected traffic9,675 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$495,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR - US 93 over Rr-Finley Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is IRR - US 93 over Rr-Finley 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 June 2024.

How much traffic does IRR - US 93 over Rr-Finley Creek carry?

About 9,214 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is IRR - US 93 over Rr-Finley Creek?

The structure is 344 ft (104.9 m) long with a longest span of 113 ft (34.5 m) and a deck 43 ft wide.

Who owns IRR - US 93 over Rr-Finley Creek?

It is owned by the State Highway Agency.