US Bridges

Cottonwood CR RD over Cottonwood Creek 140

Good

Fergus County, Montana · 9M SW Lewistown · Structure no. L14304007+05001

Built
2013
12 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

Cottonwood CR RD over Cottonwood Creek 140 is a prestressed concrete tee beam carrying Cottonwood CR RD over Cottonwood Creek 140 in Fergus 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 45 vehicles a day, roughly 11% of them trucks, projected to reach 47 by 2043. The structure is 65 ft (19.7 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCottonwood CR RD
CrossesCottonwood Creek 140
Location9M SW Lewistown
RouteCounty Highway 14304
StateMontana
Coordinates46.96272, -109.48464
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 rating56.1 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length65 ft (19.7 m)
Longest span62 ft (18.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic47 by 2043
Trucks11%
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 Cottonwood CR RD over Cottonwood Creek 140 built?

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

What condition is Cottonwood CR RD over Cottonwood Creek 140 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 April 2024.

How much traffic does Cottonwood CR RD over Cottonwood Creek 140 carry?

About 45 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Cottonwood CR RD over Cottonwood Creek 140?

The structure is 65 ft (19.7 m) long with a longest span of 62 ft (18.9 m) and a deck 27 ft wide.

Who owns Cottonwood CR RD over Cottonwood Creek 140?

It is owned by the County Highway Agency.