US Bridges

Whatley RD over Milk River 071

Fair

Valley County, Montana · 7M SE Glasgow · Structure no. L53504000+07001

Built
1998
27 years old, rebuilt 2014
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
368 ft
3 main spans
Daily traffic
78
2023 count
Owner
County
County Highway Agency

About this bridge

Whatley RD over Milk River 071 is a steel continuous stringer/multi-beam or girder carrying Whatley RD over Milk River 071 in Valley County, Montana. It was built in 1998 and reconstructed in 2014, so it is 27 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 78 vehicles a day, roughly 3% of them trucks, projected to reach 82 by 2043. The structure is 368 ft (112.2 m) long and 26 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesWhatley RD
CrossesMilk River 071
Location7M SE Glasgow
RouteCounty Highway 53513
StateMontana
Coordinates48.1515, -106.51164
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating41 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHL 93
Structure length368 ft (112.2 m)
Longest span118 ft (36 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2023)
Projected traffic82 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Whatley RD over Milk River 071 built?

It was built in 1998, making it 27 years old in 2025. It was reconstructed in 2014.

What condition is Whatley RD over Milk River 071 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 May 2024.

How much traffic does Whatley RD over Milk River 071 carry?

About 78 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Whatley RD over Milk River 071?

The structure is 368 ft (112.2 m) long with a longest span of 118 ft (36 m) and a deck 26 ft wide.

Who owns Whatley RD over Milk River 071?

It is owned by the County Highway Agency.