US Bridges

Cottonwood Cutoff over Cottonwood Creek 025

Good

Fergus County, Montana · 6M SW Lewistown · Structure no. L14318002+04001

Built
2012
13 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Cottonwood Cutoff over Cottonwood Creek 025 is a prestressed concrete tee beam carrying Cottonwood Cutoff over Cottonwood Creek 025 in Fergus County, Montana. It was built in 2012, so it is 13 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 101 ft (30.9 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCottonwood Cutoff
CrossesCottonwood Creek 025
Location6M SW Lewistown
RouteCounty Highway 14318
StateMontana
Coordinates47.00455, -109.51777
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 protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length101 ft (30.9 m)
Longest span100 ft (30.4 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 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 closed8.7 mi (14 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$119,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cottonwood Cutoff over Cottonwood Creek 025 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Cottonwood Cutoff over Cottonwood Creek 025 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 2025.

How much traffic does Cottonwood Cutoff over Cottonwood Creek 025 carry?

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

How long is Cottonwood Cutoff over Cottonwood Creek 025?

The structure is 101 ft (30.9 m) long with a longest span of 100 ft (30.4 m) and a deck 27 ft wide.

Who owns Cottonwood Cutoff over Cottonwood Creek 025?

It is owned by the County Highway Agency.