US Bridges

Main Range Road over Salt River

Good

Hardin County, Kentucky · 2.0 KM N. of Lngstrt Rang · Structure no. DAPTRAKNO0BDG01

Built
1993
32 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
542 ft
5 main spans
Daily traffic
50
2023 count
Owner
Federal
Army

About this bridge

Main Range Road over Salt River is a prestressed concrete stringer/multi-beam or girder carrying Main Range Road over Salt River in Hardin County, Kentucky. It was built in 1993, so it is 32 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 25% of them trucks, projected to reach 100 by 2045. The structure is 542 ft (165.2 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMain Range Road
CrossesSalt River
Location2.0 KM N. of Lngstrt Rang
Coordinates37.99223, -85.92219
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating53.5 US tons
Inventory rating41.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length542 ft (165.2 m)
Longest span160 ft (48.8 m)
Deck width26 ft (8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic100 by 2045
Trucks25%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Range Road over Salt River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Main Range Road over Salt River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Main Range Road over Salt River carry?

About 50 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is Main Range Road over Salt River?

The structure is 542 ft (165.2 m) long with a longest span of 160 ft (48.8 m) and a deck 26 ft wide.

Who owns Main Range Road over Salt River?

It is owned by the Army.