Boone County, KY

138 public highway bridges

Boone County Bridge Snapshot

Boone County, Kentucky contains 138 public highway bridges in the FHWA National Bridge Inventory. Roughly 33.3% are rated “Good,” 34.1% “Fair,” 4.3% “Poor,” and 4.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in KY are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

138
Total Bridges
33.3%
Good
4.3%
Poor
4.3%
Structurally Deficient

Condition Distribution

Good
33.3% (46)
Fair
34.1% (47)
Poor
4.3% (6)
SD
4.3% (6)

All Bridges (138)

KY-18

Good

Over: GUNPOWDER CREEK

.8 MI E. JCT KY, Boone, KY

Built 1971 Load: 39.9 t ADT: 38,177

KY-20

Good

Over: WOOLPER CREEK

3.1 MI NOR OF JCT KY-18, Boone, KY

Built 2007 Load: 39.9 t ADT: 718

SADDLE RIDGE DR

Good

Over: ALLEN FORK

25' S OF JCT KY 18, Boone, KY

Built 1978 Load: 39.9 t ADT: 84

RIVER RD

Good

Over: SAND RUN

.6 MI SW OF JCT KY 8, Boone, KY

Built 1940 Load: 39.9 t ADT: 42

ASHBY FORK RD

Good

Over: BR OF ASHBY'S FORK

2 MI SE JCT KY 20, Boone, KY

Built 1989 Load: 39.9 t ADT: 82

MEADOW CREEK DR

Good

Over: TRIB- SOUTH FK CREEK

.2 MI W JCT KY 842, Boone, KY

Built 1990 Load: 39.9 t ADT: 133

ORLEANS BLVD

Good

Over: FOWLERS CREEK

50 FOOT W OF JCT CR 5002, Boone, KY

Built 2002 Load: 39.9 t ADT: 5,629

THORNWILDE DR

Good

Over: SAND RUN CREEK

THORNWILDE LN .5W K237, Boone, KY

Built 1992 Load: 39.9 t ADT: 216

CR-1057J1

Good

Over: ALLEN FORK

0.5 MI. S. OF KY 18, Boone, KY

Built 2003 Load: 39.9 t ADT: 108

Heights BLVD

Good

Over: UNNAMED STREAM

.1 MI N JCT US 42, Boone, KY

Built 2015 Load: 39.9 t ADT: 10,643

CS-2081

Good

Over: UNNAMED STREAM

.1 MI S OF KY-3060, Boone, KY

Built 2006 Load: 39.9 t ADT: 270

LIMABURG CREEK RD

Good

Over: LIMABURG CREEK

.9 MI NE of JCT of KY 18, Boone, KY

Built 2013 Load: 40.8 t ADT: 34

PEEL ROAD

Good

Over: WOOLPER CREEK

.5 SOUTH OF KY-20, Boone, KY

Built 2022 Load: 40.8 t ADT: 150

KY-338

Good

Over: WOOLPER CREEK

2.6 MI N.W. - KY 18, Boone, KY

Built 1982 Load: 42.0 t ADT: 792

KITE LN CR-1205

Good

Over: ASHBYS FORK

.1 MI S OF JCT KY 338, Boone, KY

Built 2004 Load: 44.4 t ADT: 53

KY-338

Good

Over: ALLEN FORK

.2 MI. S JCT KY 18, Boone, KY

Built 2000 Load: 44.8 t ADT: 2,576

KY-14

Good

Over: CSX RAILROAD

EBL .05 MI W OF JCT US25-, Boone, KY

Built 1979 Load: 45.7 t ADT: 5,942

Mary Grubbs HWY

Good

Over: Unnamed Stream

0.35 MI E of JCT US 25, Boone, KY

Built 2019 Load: 45.7 t ADT: 100

US-42

Good

Over: S. FK GUNPOWDER CREEK

.02 MI. SW KY 237, Boone, KY

Built 1987 Load: 46.0 t ADT: 30,498

EASTON LN

Good

Over: ALLEN FORK

1.1 MI.W. JCT KY 338, Boone, KY

Built 1987 Load: 46.4 t ADT: 98

AGARWOOD DR.

Good

Over: MUD LICK CREEK

.1 MI S OF KY-338, Boone, KY

Built 2010 Load: 47.2 t ADT: 20

KY-338

Good

Over: BIG BONE CREEK

1.7 MI.W. JCT US 62, Boone, KY

Built 1996 Load: 48.8 t ADT: 1,634

US-42

Good

Over: LITTLE SOUTH FORK

.3 MI NE OF GALLATIN CL, Boone, KY

Built 1986 Load: 49.4 t ADT: 4,209

ELIJAH CREEK RD

Good

Over: ELI JAHS CREEK

.9 MI W. JCT KY 20, Boone, KY

Built 1998 Load: 51.4 t ADT: 127

KY-536

Good

Over: NS (CNO&TP) SYSTEM

0.3 MI EAST OF JCT US-25, Boone, KY

Built 2002 Load: 55.5 t ADT: 7,271

KY 237

Good

Over: Gunpowder Creek

2.7 MI N.W. OF JCT US 42, Boone, KY

Built 2020 Load: 56.4 t ADT: 11,519

GUM BRANCH RD.

Good

Over: GUM BRANCH

_, Boone, KY

Built 2015 Load: 57.3 t ADT: 40

ASHBY FORK RD

Good

Over: ASHBY FORK

1 MI SE OF JCT KY 20, Boone, KY

Built 2009 Load: 62.7 t ADT: 253

MT. ZION ROAD

Good

Over: SOUTH FORK GUNPOWDER CK

1.7 MI E OF US 42 & 127, Boone, KY

Built 2003 Load: 66.4 t ADT: 6,181

BENTGRASS WAY

Good

Over: WOOLPER CREEK

1.37 MI W OF KY-237, Boone, KY

Built 2018 Load: 77.1 t ADT: 5,039

WALMART ENTRANCE

Good

Over: UNKNOWN STREAM

0.1 north of KY-842, Boone, KY

Built 2007 Load: 97.2 t ADT: 50

SPRINGFIELD BLVD

Good

Over: Unnamed stream

2.0 MI. W OF JCT 338, Boone, KY

Built 2008 Load: 97.2 t ADT: 250

GARRISON CREEK RD

Poor

Over: GARRISON CREEK

1.6 miles north of I-275, Boone, KY

Built 1980 Load: 8.2 t ADT: 75

KY-14

Poor

Over: MCCOYS FORK

.70 MI S.W. OF I-75 NTRCH, Boone, KY

Built 1931 Load: 13.6 t ADT: 2,146

KY-842

Poor

Over: NS (CNO&TP) SYSTEM

0.2 MI E. of US-25, Boone, KY

Built 1982 Load: 13.9 t ADT: 9,286

CR-1001

Poor

Over: GUNPOWDER CREEK

.85 MI SW OF JCT KY 237, Boone, KY

Built 1951 Load: 21.5 t ADT: 8,155

KY-338

Poor

Over: GUM BRANCH

.05 MI E OF JCT KY 1925, Boone, KY

Built 1953 Load: 21.6 t ADT: 1,634

PEBBLE CREEK WAY

Poor

Over: GUNPOWDER CREEK

.7 MI SE CAMP ERNST RD, Boone, KY

Built 1999 Load: 34.0 t ADT: 121

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial