US Bridges

S 566-TONGUE R RD over Hanging Woman Creek

Fair

Rosebud County, Montana · SW Birney · Structure no. S00566024+00401

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
53
2023 count
Owner
County
County Highway Agency

About this bridge

S 566-TONGUE R RD over Hanging Woman Creek is a prestressed concrete channel beam carrying S 566-TONGUE R RD over Hanging Woman Creek in Rosebud County, Montana. It was built in 1975, so it is 50 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 5 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 53 vehicles a day, projected to reach 56 by 2043. The structure is 66 ft (20.1 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesS 566-TONGUE R RD
CrossesHanging Woman Creek
LocationSW Birney
RouteCounty Highway 566
CountyRosebud County
StateMontana
Coordinates45.32004, -106.51892
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating27 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2023)
Projected traffic56 by 2043
Trucks0%
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 S 566-TONGUE R RD over Hanging Woman Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is S 566-TONGUE R RD over Hanging Woman Creek 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 July 2024.

How much traffic does S 566-TONGUE R RD over Hanging Woman Creek carry?

About 53 vehicles per day (2023 count).

How long is S 566-TONGUE R RD over Hanging Woman Creek?

The structure is 66 ft (20.1 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns S 566-TONGUE R RD over Hanging Woman Creek?

It is owned by the County Highway Agency.