US Bridges

E Lake HWY over Lake Creek 060

Fair

Sheridan County, Montana · 9M E Medicine Lake · Structure no. L46201008+09001

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
93 ft
2 main spans
Daily traffic
109
2023 count
Owner
State
State Highway Agency

About this bridge

E Lake HWY over Lake Creek 060 is a prestressed concrete stringer/multi-beam or girder carrying E Lake HWY over Lake Creek 060 in Sheridan County, Montana. It was built in 1965, so it is 60 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 109 vehicles a day, roughly 6% of them trucks, projected to reach 114 by 2043. The structure is 93 ft (28.2 m) long and 31 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesE Lake HWY
CrossesLake Creek 060
Location9M E Medicine Lake
RouteState Highway 573
StateMontana
Coordinates48.50466, -104.30284
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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 rating48 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length93 ft (28.2 m)
Longest span46 ft (14 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic109 (2023)
Projected traffic114 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 E Lake HWY over Lake Creek 060 built?

It was built in 1965, making it 60 years old in 2025.

What condition is E Lake HWY over Lake Creek 060 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 August 2024.

How much traffic does E Lake HWY over Lake Creek 060 carry?

About 109 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is E Lake HWY over Lake Creek 060?

The structure is 93 ft (28.2 m) long with a longest span of 46 ft (14 m) and a deck 31 ft wide.

Who owns E Lake HWY over Lake Creek 060?

It is owned by the State Highway Agency.