I-75 RAMP
I-75 RAMP in SB Mall Rmp @ West Ramp, Boone County, Kentucky received a condition grade of B (74/100). Built in 1990, the bridge carries 140K vehicles daily on I-75 RAMP over West Rmp Ky18 To I75sb.
I-75 RAMP carries a B on the BridgeSafety Condition Score with 74/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1990, making it 36 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. I-75 RAMP carries an average daily traffic count of 140,378 vehicles, with 1 lane(s) crossing West Rmp Ky18 To I75sb. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I-75 RAMP is a 36-year-old bridge located SB Mall Rmp @ West Ramp in Boone County, Kentucky. The bridge carries I-75 RAMP over West Rmp Ky18 To I75sb with 1 traffic lane, handling approximately 140K vehicles per day. Built in 1990, the structure spans 115.2 meters.
The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-75 RAMP has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-75 RAMP was built in 1990, making it 36 years old. The average bridge age in the United States is 48 years.
I-75 RAMP carries approximately 140K vehicles per day (average daily traffic). The bridge has 1 traffic lane. It is 115.2 meters long and located on I-75 RAMP in SB Mall Rmp @ West Ramp, Boone County, Kentucky.
No, I-75 RAMP is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I-75 RAMP is located SB Mall Rmp @ West Ramp in Boone County, Kentucky. The bridge carries I-75 RAMP over West Rmp Ky18 To I75sb. Its coordinates are 38.992222, -84.645278. It is maintained by State Highway Agency.
I-75 RAMP carries I-75 RAMP over West Rmp Ky18 To I75sb. The bridge is 115.2 meters long and was built in 1990.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.