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Alderdice Road over Terrapin Creek

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

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

Alderdice Road over Terrapin Creek in Graves County, Kentucky, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
It was built in 1978, making it 47 years old at the 2025 inventory.
It carries about 19 vehicles a day (traffic count year 2010).
Its listed owner is the county highway agency.
It is one of 40 of the 380 inventoried bridges in Graves County rated poor (10.5%); 40 (10.5%) 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 82 ft
Location	.35 Mi W of Jct Ky 97
NBI structure number	042C00076N
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US-45 over Key Creek	1968	16,933	Fair
Ky-121 over Red Duck Creek	1999	13,901	Good
Paducah Road over Oak Grove Creek	1999	13,256	Good
Ky. 80 over Unnamed Stream	2007	12,060	Good
Ky-121x over Red Duck Creek	1984	11,705	Good
Jc-9003 over Cane Creek	1967	11,524	Fair