Bridge conditions in Martin County, Kentucky
70 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 70 Martin County bridges in the federal inventory, 10 carry a poor rating. That 14.3% share is roughly 2x the national average.
- 10 of the 70 bridges in Martin County, Kentucky, are rated in poor condition (14.3%) in the 2025 National Bridge Inventory, as of .
- 22 bridges (31.4%) are rated good and 38 (54.3%) fair.
- The median Martin County bridge was built in 1987.
- The busiest poor-rated bridge is Ky-40 over Rockcastle Creek (built 1953), carrying about 4,804 vehicles a day.
Good 31.4% · Fair 54.3% · Poor 14.3% of 70 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-40 over Rockcastle Creek | 1953 | 4,804 | Poor |
| Ky-292 over Long Branch | 1958 | 935 | Poor |
| Ky-1224 over Rockhouse Fork | 1973 | 676 | Poor |
| Ky-1714 over Wolf Creek | 1976 | 477 | Poor |
| Ky-3407 over Wolf Creek | 1981 | 362 | Poor |
| Ky-908 over Turkey Creek | 1970 | 348 | Poor |
| Johnson Bottom over Rockcastle Creek | 1979 | 310 | Poor |
| Marcumtown Rd over Rockcastle Creek | 1989 | 164 | Poor |
| Mollett Branch over Rockhouse Fork | 1960 | 100 | Poor |
| Setser Branch over Middle Frk Rockcastle Cr | 1980 | 100 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-40 over Rockcastle Creek | 1953 | 4,804 | Poor |
| Ky-645 over Middle Fork | 2004 | 4,537 | Good |
| Ky-645 over Becca Liz Ln | 2005 | 4,537 | Good |
| Ky-645 over KY-40 & Coldwater Fork | 2010 | 4,537 | Good |
| Ky-645 Ramp Ky-40 over Coldwater Fork | 2006 | 4,537 | Good |
| Ky 40 over Buck Creek | 1929 | 4,308 | Good |
| Ky-908 over Blacklog Fork | 1987 | 3,852 | Fair |
| KY-645RMP to KY-40 over Coldwater Fork | 2007 | 3,841 | Good |
| Ky-40 over Tug Fork-big Sandy River | 1986 | 3,489 | Fair |
| Ky-40 over Buck Creek | 1930 | 3,221 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Kentucky: Kentucky bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.