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: NFA B833
IN KINGSPORT, Sullivan, TN
Over: NFA B833
IN KINGSPORT, Sullivan, TN
Over: SR 346
NEAR STATE LINE, Sullivan, TN
Over: SHIPLEY FERRY RD.(A009)
NEAR TRI-CITIES AIRPORT, Sullivan, TN
Over: SHIPLEY FERRY RD.(A009)
NEAR TRI-CITIES AIRPORT, Sullivan, TN
Over: CENTENARY RD (A251)
NEAR TRI-CITIES AIRPORT, Sullivan, TN
Over: WHITETOP CREEK
S. OF BRISTOL, Sullivan, TN
Over: RAMP OVER BRANCH
S. OF BRISTOL, Sullivan, TN
Over: NFA 1378 & SOUTHERN RWY
IN THE CITY OF BRISTOL, Sullivan, TN
Over: SR 358
IN THE CITY OF BRISTOL, Sullivan, TN
Over: SR 358
IN THE CITY OF BRISTOL, Sullivan, TN
Over: BRANCH
5.3 MI SW JCT SR6&SR376, Sumner, TN
Over: BRANCH
4.9 MI W JCT SR6&SR376, Sumner, TN
Over: STATION CAMP CREEK
5.1 MI SE JCT SR1747SR258, Sumner, TN
Over: JONES BRANCH
0.6 MI E JCT SR41&SR258, Sumner, TN
Over: LICK CREEK
6.3 MI E JCT SR25&SR109, Sumner, TN
Over: A BRANCH
0.5 KM N. OF E. ROBERTSON, Sumner, TN
Over: BRANCH
2.8 MI SW JCT SR6&SR376, Sumner, TN
Over: BRANCH
4.6 MI NE JCT SR109&SR174, Sumner, TN
Over: WEST FORK DRAKES CREEK
2.7 NI SE JCT SR76&SR109, Sumner, TN
Over: ROUGES FORK CREEK
ROUGES FORK ROAD OVER BRA, Sumner, TN
Over: DRY FORK CREEK
3.7 MI NE JCT SR76&SR109, Sumner, TN
Over: DUTCH CREEK
4.3 MI NE JCT SR52&SR174, Sumner, TN
Over: BRANCH
4.6 MI NE JCT SR52&SR174, Sumner, TN
Over: CSX RAILROAD
INDIAN LAKE BLVD., Sumner, TN
Over: BRANCH
IN THE CITY OF GALLATIN, Sumner, TN
Over: SLATERS CREEK
2.3 MI NW JCT I65&SR174, Sumner, TN
Over: HOGAN BRANCH
2 MI NW JCT SR174 & SR258, Sumner, TN
Over: BRANCH
EAST OF GOODLETTSVILLE, Sumner, TN
Over: BRANCH
IN CITY OF HENDERSONVILLE, Sumner, TN
Over: STATION CAMP CREEK
3.6 MI SE JCT SR174&SR258, Sumner, TN
Over: BRANCH
IN CITY OF HENDERSONVILLE, Sumner, TN
Over: STATION CAMP
4.8 MI NE JCT SR174&SR258, Sumner, TN
Over: LIGGETT BRANCH
4.5 MI NE JCT SR174&SR258, Sumner, TN
Over: STATION CAMP CREEK
3.8 MI NE JCT SR174&SR258, Sumner, TN
Over: STATION CAMP CREEK
3.6 MI NE JCT SR174&SR258, Sumner, TN
Over: BRANCH
2.0 MI SW JCT SR 109&SR6, Sumner, TN
Over: BRANCH
1.4 MI SE JCT SR41&SR258, Sumner, TN
Over: RED RIVER
3.4 MI NE JCT SR25&SR76, Sumner, TN
Over: MAXWELL BRANCH
2.3 MI NW JCT SR25&SR76, Sumner, TN
Over: MAXWELL BRANCH
1.1 MI N JCT SR25&SR76, Sumner, TN
Over: RED RIVER
1.3 MI S JCT SR41&SR52, Sumner, TN
Over: CANEY FORK CREEK
3.4 MI NW JCT SR52&SR259, Sumner, TN
Over: DONAHO BRANCH
IN CITY OF PORTLAND, Sumner, TN
Over: BRANCH
IN CITY OF PORTLAND, Sumner, TN
Over: EAST CAMP CREEK
2 MI N JCT SR 109& SR 174, Sumner, TN
Over: WALLACE BRANCH
2.4 MI NW JCT SR109&SR174, Sumner, TN
Over: EAST CAMP CREEK
1M E JCT SR109&NFA6096, Sumner, TN
Over: BRANCH
1.6 MI SW JCT SR 109&SR6, Sumner, TN
Over: BRANCH
IN CITY OF GALLATIN, Sumner, TN
Showing 17,851-17,900 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.