US Bridges

Mid Burnt Fork RD over Bitterroot Canal 089

Poor

Ravalli County, Montana · 4M E Stevensville · Structure no. L41304004+00001

Built
1984
41 years old
Condition
Poor
inspected March 2024
Type
Channel Beam
Prestressed Concrete
Length
40 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Mid Burnt Fork RD over Bitterroot Canal 089 is a prestressed concrete channel beam carrying Mid Burnt Fork RD over Bitterroot Canal 089 in Ravalli County, Montana. It was built in 1984, so it is 41 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 40 ft (12.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMid Burnt Fork RD
CrossesBitterroot Canal 089
Location4M E Stevensville
RouteCounty Highway 41304
StateMontana
Coordinates46.49368, -113.99617
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mid Burnt Fork RD over Bitterroot Canal 089 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mid Burnt Fork RD over Bitterroot Canal 089 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Mid Burnt Fork RD over Bitterroot Canal 089 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Mid Burnt Fork RD over Bitterroot Canal 089?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Mid Burnt Fork RD over Bitterroot Canal 089?

It is owned by the County Highway Agency.