US Bridges

US 2 over Chapman Coulee

Good

Valley County, Montana · 7M NW Glasgow · Structure no. 000000202405114

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Concrete
Length
71 ft
1 main span
Daily traffic
1,484
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Chapman Coulee is a concrete tee beam carrying US 2 over Chapman Coulee in Valley County, Montana. It was built in 2024, so it is 1 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 1,484 vehicles a day, roughly 10% of them trucks, projected to reach 1,558 by 2043. The structure is 71 ft (21.6 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUS 2
CrossesChapman Coulee
Location7M NW Glasgow
RouteU.S. Route 2
StateMontana
Coordinates48.29753, -106.71586
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span71 ft (21.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,484 (2023)
Projected traffic1,558 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 US 2 over Chapman Coulee built?

It was built in 2024, making it 1 years old in 2025.

What condition is US 2 over Chapman Coulee 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 November 2024.

How much traffic does US 2 over Chapman Coulee carry?

About 1,484 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 2 over Chapman Coulee?

The structure is 71 ft (21.6 m) long with a longest span of 71 ft (21.6 m) and a deck 43 ft wide.

Who owns US 2 over Chapman Coulee?

It is owned by the State Highway Agency.