US Bridges

NB I-75 over E Main ST Ext

Fair

Scott County, Kentucky · .9 MI S-Us 460 @ G-Town · Structure no. 105B00119R

Built
1992
33 years old
Condition
Fair
inspected March 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
31,655
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-75 over E Main ST Ext is a prestressed concrete stringer/multi-beam or girder carrying NB I-75 over E Main ST Ext in Scott County, Kentucky. It was built in 1992, so it is 33 years old, younger than the Kentucky average of 46.6 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 31,655 vehicles a day, roughly 19% of them trucks, projected to reach 34,820 by 2043. The structure is 56 ft (17.1 m) long and 63 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNB I-75
CrossesE Main ST Ext
Location.9 MI S-Us 460 @ G-Town
RouteInterstate 75
CountyScott County
StateKentucky
Coordinates38.20278, -84.52861
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.4 US tons
Inventory rating63.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length56 ft (17.1 m)
Longest span50 ft (15.2 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,655 (2023)
Projected traffic34,820 by 2043
Trucks19%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$440,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB I-75 over E Main ST Ext built?

It was built in 1992, making it 33 years old in 2025.

What condition is NB I-75 over E Main ST Ext 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 March 2021.

How much traffic does NB I-75 over E Main ST Ext carry?

About 31,655 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is NB I-75 over E Main ST Ext?

The structure is 56 ft (17.1 m) long with a longest span of 50 ft (15.2 m) and a deck 63 ft wide.

Who owns NB I-75 over E Main ST Ext?

It is owned by the State Highway Agency.