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Ky-3630 over Blackwater Creek

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

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

Ky-3630 over Blackwater Creek in Jackson 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 1975, making it 50 years old at the 2025 inventory.
It carries about 188 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 5 of the 55 inventoried bridges in Jackson County rated poor (9.1%); 5 (9.1%) 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	Prestressed concrete multiple box beam
Length	about 36 ft
Location	1.9 Mi NE of Jct Ky 1431
NBI structure number	055B00033N
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
_US-421 over _pigeon Roost Creek	2017	5,507	Good
US-421 over Indian Creek	1927	4,470	Fair
Ky-30 over Moores Creek	2010	4,340	Good
US-421 over Sand Lick Creek	1928	3,123	Fair
Ky 30 over Moores road.	2012	2,771	Good
US 421 over Mccamon cr.	2008	2,754	Good