Unicoi County, TN

161 public highway bridges

Unicoi County Bridge Snapshot

Unicoi County, Tennessee contains 161 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.3% are rated “Good,” 42.2% “Fair,” 5% “Poor,” and 5% 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 TN 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.

161

Total Bridges

32.3%

Good

5%

Poor

5%

Structurally Deficient

Condition Distribution

Good

32.3% (52)

Fair

42.2% (68)

Poor

5% (8)

SD

5% (8)

All Bridges (161)

Sort:

I26 RT LN

Over: I26 RT LN

.5 M S OF CARTER CO LINE, Unicoi, TN

Built 1985 ADT: 480

I26 LT LN

Over: I26 LT LN

.5 M S OF CARTER CO LINE, Unicoi, TN

Built 1985 ADT: 480

I26 RT LN

Over: I26 RT LN

1.3 M S OF CARTER CO LINE, Unicoi, TN

Built 1985 ADT: 180

I26 LT LN

Over: I26 LT LN

1.3 M S OF CARTER CO LINE, Unicoi, TN

Built 1985 ADT: 180

I26 RT LN

Over: I26 RT LN

1.6 M N OF I26-SR173 JCT, Unicoi, TN

Built 1985 ADT: 560

I26 LT LN

Over: I26 LT LN

1.6 M N OF I26-SR173 JCT, Unicoi, TN

Built 1985 ADT: 560

I26 RT LN

Over: I26 RT LN

.9 M N OF I26 & SR137 JCT, Unicoi, TN

Built 1985 ADT: 520

I26 LT LN

Over: I26 LT LN

.9 M N OF I26 & 173 JCT, Unicoi, TN

Built 1985 ADT: 520

I26 RT LN

Over: I26 RT LN

AT SR173 JCT-NW OF UNICOI, Unicoi, TN

Built 1985 ADT: 1,440

I26 LT LN

Over: I26 LT LN

N W OF UNICOI, Unicoi, TN

Built 1985 ADT: 5,170

I26 RT LN

Over: I26 RT LN

1.4 M S OF SR173 JCT, Unicoi, TN

Built 1985 ADT: 130

I26 LT LN

Over: I26 LT LN

1.4 M S OF SR 173, Unicoi, TN

Built 1985 ADT: 130

I26 RT LN

Over: I26 RT LN

1.9 M SW OF SR173-I26 JC, Unicoi, TN

Built 1985 ADT: 130

I26 LT LN

Over: I26 LT LN

1.9 M S OF I26-SR173 JCT, Unicoi, TN

Built 1985 ADT: 130

I26 RT LN

Over: I26 RT LN

N OF ERWIN, Unicoi, TN

Built 1983 ADT: 350

I26 LT LN

Over: I26 LT LN

N OF ERWIN, Unicoi, TN

Built 1983 ADT: 350

NFA 1419

Over: NFA 1419

NORTH OF ERWIN, Unicoi, TN

Built 1981 ADT: 13,947

I26

Over: I26

IN ERWIN, Unicoi, TN

Built 1987 ADT: 4,379

NFA 4701

Over: NFA 4701-JACKSON LOWE RD

5 M NE JCT I26 & SR81, Unicoi, TN

Built 1993 ADT: 8,283

I26 RT LN

Over: I26

4 M NE JCT I26 & SR81, Unicoi, TN

Built 1993 ADT: 360

I26 LT LN

Over: I26

4 M NE JCT I26 & SR81, Unicoi, TN

Built 1993 ADT: 360

I26

Over: I26

3.2M NE JCT I26 & SR81, Unicoi, TN

Built 1993 ADT: 320

I26

Over: I26

2.5M NE JCT I26 & SR81, Unicoi, TN

Built 1993 ADT: 40

I26

Over: I26

2 M NE JCT I26&SR81, Unicoi, TN

Built 1993 ADT: 10

I26

Over: I26

1.5M NE JCT OLD SR36&I26, Unicoi, TN

Built 1993 ADT: 1,380

I26

Over: I26

JCT OF HIGGINS CR RD&I26, Unicoi, TN

Built 1994 ADT: 590

I26

Over: I26

JCT OF I26 & SR352, Unicoi, TN

Built 1994 ADT: 858

I26

Over: I26

1.5 MI SE OF ERNESTVILLE, Unicoi, TN

Built 1994 ADT: 200

I26

Over: I26

2 MI SE OF ERNESTVILLE, Unicoi, TN

Built 1994 ADT: 270

I26

Over: I26

JCT OF LITTLE BR. RD&I26, Unicoi, TN

Built 1994 ADT: 10

I26

Over: I26

JCT OF TILSON MTN RD&I26, Unicoi, TN

Built 1994 ADT: 52

I26

Over: I26

UPPER HIGGINS CR RD&SR81, Unicoi, TN

Built 1995 ADT: 594

NFA C001

Over: NFA C001-CONNECTOR RD

4.52 MI FROM NC/TN ST LN, Unicoi, TN

Built 1995 ADT: 10,622

NFA A610

Over: SOUTH INDIAN CREEK

RED OAK LANE, Unicoi, TN

Built 2003 Load: 5.8 t ADT: 10

NFA A055

Over: SOUTH INDIAN CREEK

N OF ERNESTVILLE NEAR R36, Unicoi, TN

Built 1978 Load: 11.0 t ADT: 590

NFA A483

Over: RICE CREEK

FARMER ROAD, Unicoi, TN

Built 1990 Load: 11.0 t ADT: 10

NFA A491

Over: GRANNY LEWIS CREEK

1.6 M NE JCT SR36&SR81, Unicoi, TN

Built 1951 Load: 17.2 t ADT: 1,430

NFA 2557 (SA 8601)

Over: SAMS CREEK

IN FLAG POND, Unicoi, TN

Built 1942 Load: 18.8 t ADT: 215

NFA A056 (SA 8610)

Over: GRANNY LEWIS CREEK

NEAR TEMPLE HILL SCHOOL, Unicoi, TN

Built 1978 Load: 19.1 t ADT: 250

FAS 173

Over: BRANCH

1.8 M SW OF CARTER CO LN, Unicoi, TN

Built 1955 Load: 19.8 t ADT: 1,232

FAP 81

Over: BRANCH

4.53 MI FROM NC/TN ST LN, Unicoi, TN

Built 1999 Load: 19.8 t ADT: 4,379

NFA A426 (SA 8607)

Over: NORTH INDIAN CREEK

S OF SR 36 AT ERNESTVILLE, Unicoi, TN

Built 1974 Load: 20.7 t ADT: 60

NFA A130

Over: MARTIN CREEK

IN ERWIN, Unicoi, TN

Built 1969 Load: 22.4 t ADT: 600

NFA 1351 (SA 8604)

Over: DRY CREEK

BTWN ERWIN & UNICOI, Unicoi, TN

Built 1976 Load: 22.4 t ADT: 1,607

FAS 107

Over: ROCKY CREEK

.3 M NE JCT SR107&SR395, Unicoi, TN

Built 1928 Load: 22.4 t ADT: 4,155

FAS 107

Over: DRY CREEK

2.5 M NE JCT SR107&SR395, Unicoi, TN

Built 1928 Load: 22.4 t ADT: 4,155

NFA A129

Over: MARTIN CREEK

.02MI S. DRY BRANCH ROAD, Unicoi, TN

Built 1996 Load: 22.5 t ADT: 220

NFA 2559

Over: SAMS CREEK

1.9 M SW JCT SR81&SR352, Unicoi, TN

Built 1933 Load: 23.3 t ADT: 480

NFA A039

Over: ROCKY FORK CREEK

NW OF ROCKY FORK, Unicoi, TN

Built 1990 Load: 23.7 t ADT: 30

NFA A264

Over: ROCK CREEK

E OF ERWIN-OFF SR 395, Unicoi, TN

Built 1983 Load: 24.3 t ADT: 160

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

Related

Browse all → | Rankings →

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026