Total Bridges
20,379
Public highway bridges in Tennessee
State profile · Below median Poor share
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Tennessee.
Tennessee holds 20,379 public highway bridges (#10 of 52 by inventory) with a 4.41% Poor share (#41 of 52 by Poor share).
That is 4.4% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 12 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Total Bridges
20,379
Public highway bridges in Tennessee
Good Condition
42.5%
8,664 bridges rated 7-9
-7.5pp vs 50% benchmark
Poor Condition
4.4%
898 bridges whose lowest applicable component is rated 0-4
-3.1pp vs national avg 7.5%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Tennessee vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
20,379 10th of 54 higher than 44 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
The highlighted point is Tennessee: 20,379 bridges and 4.41% in Poor condition, rank #12 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Tennessee on that same Poor-share ordering:
The full national sortable table lives on the rankings page.
Exclusive FHWA material families across all 20,379 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
State agency holds 41.4% of the 20,379 public highway bridges filed under Tennessee in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
Pre-1950 construction accounts for 11.7% of the 20,379 bridges with a recorded original year in Tennessee. Era bands are orthogonal to the Poor-share ranking above.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Tennessee on the same metric.
AL
VA
TN
MN
NM
Six lowest-condition bridges in Tennessee, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: NINE MILE CREEK
14 M. SW. MARYVILLE., Blount, TN
Over: GALLAGHER CREEK
SW OF SR 333, Blount, TN
Over: CSX RAILROAD
DOSSETT LANE / CSX RAILRO, Campbell, TN
Over: SPRING CREEK
IN THE CITY OF MCKENZIE, Carroll, TN
Over: GAP CREEK
2 MI SE OF SR 67, Carter, TN
Over: STONEY CREEK
S OF SR91-NE PART OF CO., Carter, TN
Over: BRANCH
.02 MI FR JCT SR35&SR92, Jefferson, TN
Over: BRANCH
1.25 M SOUTH OF SR34, Jefferson, TN
Over: BAKER BRANCH
N OF US321 AT STATE LINE, Johnson, TN
Over: LAUREL CREEK
3 M S OF US421-SR167 JCT, Johnson, TN
Over: ROAN CREEK
DUG HILL RD-S OF MTN CITY, Johnson, TN
Over: DOE CREEK
W OFF SR67-1.5 M N OF 167, Johnson, TN
Over: DOE CREEK
W OFF SR67-N OF SR167, Johnson, TN
Over: DOE CREEK
W OFF SR67-N OF SR167, Johnson, TN
Over: DOE CREEK
S OFF SR67-N OF SR167 JCT, Johnson, TN
Over: DOE CREEK
N OFF SR67-W OF MTN. CITY, Johnson, TN
Over: FURNACE CREEK
CHURCH ST-E OFF US421, Johnson, TN
Over: FURNACE CREEK
CIRCLE DR-W OFF SR91, Johnson, TN
Over: TOWN CREEK
JACKSON ST-BTWN SR167&421, Johnson, TN
Over: DOE CREEK
S OFF SR67-JORDAN RD., Johnson, TN
Over: BEAVER DAM CREEK
NW OFF SR133-N OF US421, Johnson, TN
Over: GOOSE CREEK
N OF US421 NEAR MTN CITY, Johnson, TN
Over: STONE BRANCH
N OFF US421-N OF MTN CITY, Johnson, TN
Over: FURNACE CREEK
FOXHALL RD-E OF SR91, Johnson, TN
Over: GENTRY CREEK
E OF SR91 NEAR LAUREL BLD, Johnson, TN
Over: FORGE CREEK
OLD FORGE CR RD-S 1SR167, Johnson, TN
Over: ROAN CREEK
W OFF US421 NEAR STATE LI, Johnson, TN
Over: ROAN CREEK
BTWN SR167&US421-S OF CTY, Johnson, TN
Over: VAUGHT CREEK
LAUREL RD-BTWN SR167&SR34, Johnson, TN
Over: FURNACE CREEK
AT HIGH SCHOOL IN MTN CTY, Johnson, TN
Over: LAUREL CREEK
W OFF SR91-JUST S OF ST L, Johnson, TN
Over: GOOSE CREEK
PIONEER VILLAGE DR, Johnson, TN
Over: GOOSE CREEK
0.5 M W OF US421, Johnson, TN
Over: BIG DRY RUN CREEK
N OF US321 NEAR LAKE, Johnson, TN
Over: BEAVERDAM CREEK
.22 M EAST OF SR91, Johnson, TN
Over: GOOSE CREEK
1 M S OF MOUNTAIN CITY, Johnson, TN
Over: FURNACE CREEK
IN MOUNTAIN CITY, Johnson, TN
Over: ROARING CREEK
.4 M S OF TRIPLETT RD, Johnson, TN
Over: ROAN CREEK
.9 M SE BRUSHY FORK RD, Johnson, TN
Over: DOE CREEK
.3 M E OF OLD STAGE RD, Johnson, TN
Over: GOOSE CREEK
.5 M S OF MOUONTAIN CITY, Johnson, TN
Over: FURNACE CREEK
1.2 M S OF SR67, Johnson, TN
Over: BRANCH
6.8 M S OF VA-TN LINE, Johnson, TN
Over: BEAVERDAM CREEK
4 M SW OF SULLIVAN CO LN, Johnson, TN
Over: WYNN AVE / S. KNOXVILLE
WYNN AVE IN KNOXVILLE, Knox, TN
Over: S. KNOXVILLE /SEVIER AVE
SO KNOXVILLE BLVD, Knox, TN
Over: S. KNOXVILLE /SEVIER AVE
SO KNOXVILLE BLVD, Knox, TN
Over: SEVIER AVE /S. KNOXVILLE
SEVIER AVE IN KNOXVILLE, Knox, TN
Over: BAKER CREEK
RAMP TO DAVENPORT RD., Knox, TN
Over: BAKER CREEK
1 KM SOUTH OF TN RIVER, Knox, TN
Over: HICKORY CREEK
CAMPBELL STA RD-N OF I40, Knox, TN
Over: PLUM CREEK
W OFF SR131-S OF SR62, Knox, TN
Over: SOUTHERN RAILWAY
WASHINGTON AVE-N OF I640, Knox, TN
Over: BRANCH
MIDWAY RD-S OF I40, Knox, TN
Over: LITTLE TURKEY CREEK
IN FARRAGUT-S OF US70, Knox, TN
Over: HICKORY CREEK
YARNELL RD-N OF I40, Knox, TN
Showing 15,401-15,450 of 20,379 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
What to do with this
Use Tennessee's inventory picture to drill to a county or a specific span.
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Tennessee Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.