US Bridges

Ingomar RD over W Fk Froze to Death 006

Fair

Rosebud County, Montana · 5M S Ingomar · Structure no. L44012005+06001

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Ingomar RD over W Fk Froze to Death 006 is a prestressed concrete channel beam carrying Ingomar RD over W Fk Froze to Death 006 in Rosebud County, Montana. It was built in 1979, so it is 46 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 63 ft (19.3 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIngomar RD
CrossesW Fk Froze to Death 006
Location5M S Ingomar
RouteCounty Highway 44012
StateMontana
Coordinates46.50426, -107.37788
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.3 m)
Longest span62 ft (18.9 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 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 Ingomar RD over W Fk Froze to Death 006 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Ingomar RD over W Fk Froze to Death 006 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Ingomar RD over W Fk Froze to Death 006 carry?

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

How long is Ingomar RD over W Fk Froze to Death 006?

The structure is 63 ft (19.3 m) long with a longest span of 62 ft (18.9 m) and a deck 24 ft wide.

Who owns Ingomar RD over W Fk Froze to Death 006?

It is owned by the County Highway Agency.