US Bridges

IRR - US 93 over Pablo Feeder Canal

Good

Lake County, Montana · 2M SE Polson · Structure no. P00005057+00641

Built
2006
19 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
15,997
2023 count
Owner
State
State Highway Agency

About this bridge

IRR - US 93 over Pablo Feeder Canal is a concrete culvert carrying IRR - US 93 over Pablo Feeder Canal in Lake County, Montana. It was built in 2006, so it is 19 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,997 vehicles a day, roughly 2% of them trucks, projected to reach 16,797 by 2043. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 36 mi (58 km).

CarriesIRR - US 93
CrossesPablo Feeder Canal
Location2M SE Polson
RouteU.S. Route 93
StateMontana
Coordinates47.66694, -114.1082
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span22 ft (6.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,997 (2023)
Projected traffic16,797 by 2043
Trucks2%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR - US 93 over Pablo Feeder Canal built?

It was built in 2006, making it 19 years old in 2025.

What condition is IRR - US 93 over Pablo Feeder Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does IRR - US 93 over Pablo Feeder Canal carry?

About 15,997 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is IRR - US 93 over Pablo Feeder Canal?

The structure is 22 ft (6.6 m) long with a longest span of 22 ft (6.6 m).

Who owns IRR - US 93 over Pablo Feeder Canal?

It is owned by the State Highway Agency.