US Bridges

S 467-UNION RD over Redwater River

Fair

McCone County, Montana · 1M S Circle · Structure no. S00467000+05001

Built
1962
63 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
194 ft
3 main spans
Daily traffic
127
2023 count
Owner
County
County Highway Agency

About this bridge

S 467-UNION RD over Redwater River is a prestressed concrete stringer/multi-beam or girder carrying S 467-UNION RD over Redwater River in McCone County, Montana. It was built in 1962, so it is 63 years old, older 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 127 vehicles a day, projected to reach 134 by 2043. The structure is 194 ft (59.2 m) long and 27 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

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CarriesS 467-UNION RD
CrossesRedwater River
Location1M S Circle
RouteCounty Highway 467
CountyMcCone County
StateMontana
Coordinates47.39619, -105.59792
Functional classRural Major 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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length194 ft (59.2 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127 (2023)
Projected traffic134 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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 S 467-UNION RD over Redwater River built?

It was built in 1962, making it 63 years old in 2025.

What condition is S 467-UNION RD over Redwater River 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 April 2023.

How much traffic does S 467-UNION RD over Redwater River carry?

About 127 vehicles per day (2023 count).

How long is S 467-UNION RD over Redwater River?

The structure is 194 ft (59.2 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns S 467-UNION RD over Redwater River?

It is owned by the County Highway Agency.