US Bridges

Loma Bridge RD over Missouri River 002

Good

Chouteau County, Montana · 1M SE Loma · Structure no. L08303001+00001

Built
1991
34 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
395 ft
3 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Loma Bridge RD over Missouri River 002 is a prestressed concrete stringer/multi-beam or girder carrying Loma Bridge RD over Missouri River 002 in Chouteau County, Montana. It was built in 1991, so it is 34 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 395 ft (120.4 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLoma Bridge RD
CrossesMissouri River 002
Location1M SE Loma
RouteCounty Highway 8303
StateMontana
Coordinates47.92124, -110.49519
Functional classRural Major Collector

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.
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 alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length395 ft (120.4 m)
Longest span130 ft (39.6 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 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 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 Loma Bridge RD over Missouri River 002 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Loma Bridge RD over Missouri River 002 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 Loma Bridge RD over Missouri River 002 carry?

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

How long is Loma Bridge RD over Missouri River 002?

The structure is 395 ft (120.4 m) long with a longest span of 130 ft (39.6 m) and a deck 27 ft wide.

Who owns Loma Bridge RD over Missouri River 002?

It is owned by the County Highway Agency.