US Bridges

Skyline DR over Pablo 3A Canal 039

GoodPosted for load

Lake County, Montana · 3M S Polson · Structure no. L24065000+05001

Built
2015
10 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Skyline DR over Pablo 3A Canal 039 is a steel stringer/multi-beam or girder carrying Skyline DR over Pablo 3A Canal 039 in Lake County, Montana. It was built in 2015, so it is 10 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSkyline DR
CrossesPablo 3A Canal 039
Location3M S Polson
RouteCounty Highway 24233
StateMontana
Coordinates47.64005, -114.1346
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 alignment7: Better than present minimum criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length55 ft (16.8 m)
Longest span51 ft (15.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 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 closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$146,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Skyline DR over Pablo 3A Canal 039 built?

It was built in 2015, making it 10 years old in 2025.

What condition is Skyline DR over Pablo 3A Canal 039 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 March 2024.

How much traffic does Skyline DR over Pablo 3A Canal 039 carry?

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

How long is Skyline DR over Pablo 3A Canal 039?

The structure is 55 ft (16.8 m) long with a longest span of 51 ft (15.5 m) and a deck 24 ft wide.

Who owns Skyline DR over Pablo 3A Canal 039?

It is owned by the County Highway Agency.