US Bridges

Dry Fork RD over Irrigation Canal 085

Good

Pondera County, Montana · 3M N Conrad · Structure no. L37001012+06001

Built
2013
12 years old
Condition
Good
inspected December 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
26 ft
1 main span
Daily traffic
53
2023 count
Owner
County
County Highway Agency

About this bridge

Dry Fork RD over Irrigation Canal 085 is a aluminum, wrought iron, or cast iron culvert carrying Dry Fork RD over Irrigation Canal 085 in Pondera County, Montana. It was built in 2013, so it is 12 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.

It carries about 53 vehicles a day, roughly 3% of them trucks, projected to reach 56 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesDry Fork RD
CrossesIrrigation Canal 085
Location3M N Conrad
RouteCounty Highway 37001
StateMontana
Coordinates48.20745, -112.00515
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2023)
Projected traffic56 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Dry Fork RD over Irrigation Canal 085 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Dry Fork RD over Irrigation Canal 085 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 December 2023.

How much traffic does Dry Fork RD over Irrigation Canal 085 carry?

About 53 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Dry Fork RD over Irrigation Canal 085?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.7 m).

Who owns Dry Fork RD over Irrigation Canal 085?

It is owned by the County Highway Agency.