US Bridges

Countryman CR RD over Stillwater R Ovflow 002

Fair

Stillwater County, Montana · 1M SW Columbus · Structure no. L48117000+03001

Built
2006
19 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Countryman CR RD over Stillwater R Ovflow 002 is a prestressed concrete tee beam carrying Countryman CR RD over Stillwater R Ovflow 002 in Stillwater County, Montana. It was built in 2006, so it is 19 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 70 ft (21.3 m) long and 26 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesCountryman CR RD
CrossesStillwater R Ovflow 002
Location1M SW Columbus
RouteCounty Highway 48205
StateMontana
Coordinates45.62359, -109.28603
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 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 closed26.7 mi (43 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 Countryman CR RD over Stillwater R Ovflow 002 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Countryman CR RD over Stillwater R Ovflow 002 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 Countryman CR RD over Stillwater R Ovflow 002 carry?

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

How long is Countryman CR RD over Stillwater R Ovflow 002?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.

Who owns Countryman CR RD over Stillwater R Ovflow 002?

It is owned by the County Highway Agency.