US Bridges

Longmeadow DR over Cove Ditch 016

Fair

Yellowstone County, Montana · Lakeside Estates · Structure no. L56564001+06001

Built
1991
34 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Longmeadow DR over Cove Ditch 016 is a prestressed concrete tee beam carrying Longmeadow DR over Cove Ditch 016 in Yellowstone County, Montana. It was built in 1991, so it is 34 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 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLongmeadow DR
CrossesCove Ditch 016
LocationLakeside Estates
RouteCounty Highway 56564
StateMontana
Coordinates45.74544, -108.73536
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.7 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width24 ft (7.3 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 closed1.2 mi (2 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 Longmeadow DR over Cove Ditch 016 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Longmeadow DR over Cove Ditch 016 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 November 2024.

How much traffic does Longmeadow DR over Cove Ditch 016 carry?

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

How long is Longmeadow DR over Cove Ditch 016?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.

Who owns Longmeadow DR over Cove Ditch 016?

It is owned by the County Highway Agency.