US Bridges

Capitol RD over Little Missouri Riv 014

Good

Carter County, Montana · E Capitol · Structure no. L06127000+06001

Built
2003
22 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
173 ft
3 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Capitol RD over Little Missouri Riv 014 is a prestressed concrete stringer/multi-beam or girder carrying Capitol RD over Little Missouri Riv 014 in Carter County, Montana. It was built in 2003, so it is 22 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 173 ft (52.8 m) long and 30 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesCapitol RD
CrossesLittle Missouri Riv 014
LocationE Capitol
RouteCounty Highway 6127
StateMontana
Coordinates45.43276, -104.05509
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length173 ft (52.8 m)
Longest span57 ft (17.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 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 closed62.1 mi (100 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 Capitol RD over Little Missouri Riv 014 built?

It was built in 2003, making it 22 years old in 2025.

What condition is Capitol RD over Little Missouri Riv 014 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 August 2023.

How much traffic does Capitol RD over Little Missouri Riv 014 carry?

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

How long is Capitol RD over Little Missouri Riv 014?

The structure is 173 ft (52.8 m) long with a longest span of 57 ft (17.3 m) and a deck 30 ft wide.

Who owns Capitol RD over Little Missouri Riv 014?

It is owned by the County Highway Agency.