Sullivan County, TN

370 public highway bridges

Sullivan County Bridge Snapshot

Sullivan County, Tennessee contains 370 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.2% are rated “Good,” 42.4% “Fair,” 2.4% “Poor,” and 2.4% 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.

370

Total Bridges

29.2%

Good

2.4%

Poor

2.4%

Structurally Deficient

Condition Distribution

Good

29.2% (108)

Fair

42.4% (157)

Poor

2.4% (9)

SD

2.4% (9)

All Bridges (370)

Sort:

NFA A289

Over: NFA A289

3 MI SOUTH OF SR37, Sullivan, TN

Built 1987 ADT: 100

I26 RT LN

Over: I26

NEAR MILLER TENN., Sullivan, TN

Built 1970 ADT: 35,191

I26 LT LN

Over: I26

NEAR MILLER TENN., Sullivan, TN

Built 1970 ADT: 33,875

I26 RT LN

Over: I26

JUST S OF I81-I26 JCT, Sullivan, TN

Built 1972 ADT: 1,026

I26 LT LN

Over: I26

JUST S OF I81-I26 JCT, Sullivan, TN

Built 1972 ADT: 1,026

NFA B346

Over: NFA B346

NEAR WASHINGTON CO.LN., Sullivan, TN

Built 1968 ADT: 49,932

NFA B347

Over: NFA B347

NEAR WASHINGTON CO.LN., Sullivan, TN

Built 1968 ADT: 49,932

FAU 3905

Over: FAU 3905

NEAR WASHINGTON CO.LN., Sullivan, TN

Built 1972 ADT: 41,007

NFA B357

Over: NFA B357

NEAR WASHINGTON CO.LN., Sullivan, TN

Built 1972 ADT: 41,007

I181 LF LN

Over: I26 RT LN

NW OF I81-I181 EXCHANGE, Sullivan, TN

Built 1969 ADT: 8,035

I181 RT LN

Over: I-26 LT LN

SE OF KINGSPORT CITY LIMI, Sullivan, TN

Built 1969 ADT: 4,724

I181 LF LN

Over: I181 LF LN

JCT 137 IN KINGSPORT, Sullivan, TN

Built 1981 ADT: 21,712

I181 RT LN

Over: I181 RT LN

NEAR KINGSPORT, Sullivan, TN

Built 1980 ADT: 21,712

I181 LF LN

Over: I181 LF LN

IN KINGSPORT, Sullivan, TN

Built 1981 ADT: 21,712

I181 RT LN

Over: I181 RT LN

IN KINGSPORT, Sullivan, TN

Built 1981 ADT: 21,712

I181 LF LN

Over: I181 LF LN

0.4 MI NW OF SR 93, Sullivan, TN

Built 1981 ADT: 3,121

I181 RT LN

Over: I181 RT LN

0.4 MI NW OF SR 93, Sullivan, TN

Built 1981 ADT: 6,334

I26 RT LN

Over: I26 RT LN

IN KINGSPORT, Sullivan, TN

Built 1982 ADT: 11,366

I26 LT LN

Over: I26 LT LN

S OF I181 - US 11W JCT, Sullivan, TN

Built 1981 ADT: 3,100

I26 RT LN

Over: I26 RT LN

IN KINGSPORT, Sullivan, TN

Built 1981 ADT: 27,414

I26 LT LN

Over: I26 LT LN

IN KINGSPORT, Sullivan, TN

Built 1981 ADT: 28,837

I26

Over: WELCOME CENTER RD / I-26

IN KINGSPORT, Sullivan, TN

Built 2013 ADT: 41,117

I81 RT LN

Over: I81 RT LN

JUST N OF WASHINGTON CO.L, Sullivan, TN

Built 1976 ADT: 150

I81 LF LN

Over: I81 LF LN

JUST N OF WASHINGTON CO L, Sullivan, TN

Built 1976 ADT: 150

I81 RT LN

Over: I81 RT LN

JUST W OF I81-I181 EXIT, Sullivan, TN

Built 1976 ADT: 1,296

I81 LF LN

Over: I81 LF LN

JUST W OF I81-I181 JCT, Sullivan, TN

Built 1976 ADT: 1,296

I81 RL

Over: I81 RT LN

BTWN SR36 & I181 EXITS, Sullivan, TN

Built 1976 ADT: 2,726

I81 LL

Over: I81 LF LN

BTWN SR36 & I181 EXITS, Sullivan, TN

Built 1976 ADT: 2,726

I81

Over: I81

NEAR KINGSPORT TENN., Sullivan, TN

Built 1970 ADT: 13,036

I81

Over: I81

NEAR KINGSPORT TENN., Sullivan, TN

Built 1970 ADT: 33,740

I81 RT LN

Over: I81 RT LN

BTWN SR36&SR357 EXITS, Sullivan, TN

Built 1976 ADT: 150

I81 LF LN

Over: I81 LF LN

BTWN SR36&SR357 EXITS, Sullivan, TN

Built 1976 ADT: 150

FAS 357

Over: SR 357

AT INTERSECTION OF SR 357, Sullivan, TN

Built 1970 ADT: 28,158

FAS 357 LF LN

Over: SR 357

AT INTERSECTION OF SR 357, Sullivan, TN

Built 1970 ADT: 32,258

I81 RT LN

Over: I81 RT LN

E OF I81-SR357 EXCHANGE, Sullivan, TN

Built 1976 ADT: 150

I81 LF LN

Over: I81 LF LN

E OF I81-SR357 EXIT, Sullivan, TN

Built 1976 ADT: 150

I81 RL

Over: I81 RT LN

JUST SW OF SR126 EXIT, Sullivan, TN

Built 1976 ADT: 400

I81 LL

Over: I81 LF LN

JUST SW OF SR126 EXIT, Sullivan, TN

Built 1976 ADT: 400

I81

Over: I81

NEAR KINGSPORT TENN., Sullivan, TN

Built 1968 ADT: 3,332

I81

Over: I81

NEAR KINGSPORT TENN., Sullivan, TN

Built 1968 ADT: 6,700

I81 RL

Over: I81 RT LN

BTWN SR126 & SR37 EXITS, Sullivan, TN

Built 1976 ADT: 100

I81 LL

Over: I81 LF LN

BTWN SR126 & SR37 EXITS, Sullivan, TN

Built 1976 ADT: 100

I81 RT LN

Over: I81 RT LN

JUST W OF I81-SR37 EXIT, Sullivan, TN

Built 1976 ADT: 200

I81 LF LN

Over: I81 LF LN

JUST W OF I81-SR37 EXIT, Sullivan, TN

Built 1976 ADT: 200

I81

Over: I81

NEAR BLUFF CITY TENN., Sullivan, TN

Built 1968 ADT: 15,375

I81

Over: I81

NEAR BLUFF CITY TENN., Sullivan, TN

Built 1968 ADT: 7,870

I81 RL

Over: I81 RT LN

BTWN US11W & SR37 EXITS, Sullivan, TN

Built 1976 ADT: 730

I81 LL

Over: I81 LF LN

BTWN US11W & SR37 EXITS, Sullivan, TN

Built 1976 ADT: 730

I81 RT LN

Over: I81 RT LN

JUST SW OF I81-US11W EXIT, Sullivan, TN

Built 1976 ADT: 2,277

I81 LF LN

Over: I81 LF LN

JUST SW OF I81-US11W EXIT, Sullivan, TN

Built 1979 ADT: 2,277

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

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