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Ky-842 over NS (cno&tp) System

Boone County, Kentucky · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Ky-842 over NS (cno&tp) System in Boone County, Kentucky, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1982, making it 43 years old at the 2025 inventory.
It carries about 9,286 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 8 of the 139 inventoried bridges in Boone County rated poor (5.8%); 8 (5.8%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 178 ft
Location	0.2 MI E. of US-25
NBI structure number	008B00092N
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.

Bridge	Built	Vehicles/day	Condition
I-75 over Ky 18 Ramp	1990	140,378	Fair
I-75 Ramp over West Rmp KY18 to I75SB	1990	140,378	Fair
I-75 over Chambers Lane	1960	112,428	Fair
I-75 Nc over Turfway Road (ky 1017)	1960	90,720	Fair
I-75 over Turfway Road (ky 1017)	1960	90,720	Fair
I-75 Nc over Ky 536 (mt Zion Rd)	1992	70,784	Fair