US Bridges

Reagan RD over Rocky Coulee 039

Good

Glacier County, Montana · 20M N Cutbank · Structure no. L18410005+06001

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Reagan RD over Rocky Coulee 039 is a concrete culvert carrying Reagan RD over Rocky Coulee 039 in Glacier County, Montana. It was built in 2004, so it is 21 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesReagan RD
CrossesRocky Coulee 039
Location20M N Cutbank
RouteCounty Highway 18410
StateMontana
Coordinates48.86724, -112.42818
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating97 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed123.7 mi (199 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 Reagan RD over Rocky Coulee 039 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Reagan RD over Rocky Coulee 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 January 2024.

How much traffic does Reagan RD over Rocky Coulee 039 carry?

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

How long is Reagan RD over Rocky Coulee 039?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns Reagan RD over Rocky Coulee 039?

It is owned by the County Highway Agency.