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: BAILEY BRANCH
.1MI EAST OF I81, Hamblen, TN
Over: SR 32 RL / I81
.4 M W OF HAMBLEN JEFF CO, Hamblen, TN
Over: SR-32 RAMP/NORF SO RR
0.24M.FROM JEFFERSON CO.L, Hamblen, TN
Over: TURKEY CREEK
IN MORRISTOWN CITY LIMITS, Hamblen, TN
Over: YOUNG CREEK
3MI EAST OF SR32, Hamblen, TN
Over: SR-32
SOUTH OF US-11E, Hamblen, TN
Over: RETAIL RD
SOUTH OF US-11E, Hamblen, TN
Over: RETAIL RD
SOUTH OF US-11E, Hamblen, TN
Over: SR 160
NEAR JCT SR474, Hamblen, TN
Over: NFA 02522
NEAR JCT SR474, Hamblen, TN
Over: BENT CREEK
.8 MI NE JCT SR34&SR113, Hamblen, TN
Over: POE BRANCH
.01 MI EAST OF US 27, Hamilton, TN
Over: BRANCH
0.24 MI. W OF SR-153 JCT., Hamilton, TN
Over: WOLFTEVER CREEK
0.14 MI. N OF SR-317 JCT., Hamilton, TN
Over: LITTLE WOLFTEVER CREEK
0.31 MI. S OF SR-2 JCT., Hamilton, TN
Over: SMALL BRANCH
.01 MI WEST OF I75, Hamilton, TN
Over: GRASSHOPPER CREEK
1 MI EAST OF TENN RIVER, Hamilton, TN
Over: BLACK CREEK
1 MI EAST OF I24, Hamilton, TN
Over: WILKERSON BRANCH
IN CITY OF COLLEGEDALE, Hamilton, TN
Over: LITTLE WOLFTEVER CREEK
.1 MI FROM SR 2, Hamilton, TN
Over: WOLFTEVER CREEK
IN CITY OF COLLEGEDALE, Hamilton, TN
Over: WOLFEVER CREEK
2 MI SOUTH OF US 11, Hamilton, TN
Over: LONG SAVANNAH CREEK
2 MI EAST OF SR 58, Hamilton, TN
Over: MIDDLE CREEK
NORTH END OF CITY, Hamilton, TN
Over: BRANCH
.3 MI WEST OF SR 37, Hamilton, TN
Over: BRANCH
1.1 MI S OF SR153, Hamilton, TN
Over: BRANCH
1.5 MI. N OF SR153 JCT., Hamilton, TN
Over: POE BRANCH
IN BRAINERD, Hamilton, TN
Over: BRANCH
IN EAST BRAINERD, Hamilton, TN
Over: CSX & NS RAILROAD
CENTRAL AVE-CHATTANOOGA, Hamilton, TN
Over: BRANCH
IN CHATTANOOGA, Hamilton, TN
Over: PEDESTRIAN WALKWAY
NEAR SR-8 UNDERPASS, Hamilton, TN
Over: MOUNTAIN CREEK
IN CITY OF CHATTANOOGA, Hamilton, TN
Over: HURRICANE CREEK
6 MILES WEST OF JCT 1-75, Hamilton, TN
Over: CHATTANOOGA CREEK
.17 MI GA-TN STATE LINE, Hamilton, TN
Over: BRANCH
IN CITY OF CHATTANOOGA, Hamilton, TN
Over: BRANCH
.03 MI S OF I24, Hamilton, TN
Over: BRANCH
NEAR GEORGIA STATE LINE, Hamilton, TN
Over: BRANCH
IN CITY OF EAST RIDGE, Hamilton, TN
Over: ROBERTS MILL BRANCH
.5 MI WEST OF SR 29, Hamilton, TN
Over: ROBERTS MILL BRANCH
.8 MI WEST OF SR 29, Hamilton, TN
Over: MIDDLE CREEK
NORTH END OF CITY, Hamilton, TN
Over: SHOAL CREEK
IN SIGNAL MOUNTAIN, Hamilton, TN
Over: STRINGERS BRANCH
IN CITY OF RED BANK, Hamilton, TN
Over: LICK CREEK
.1 MI OF BOY SCOUT RD, Hamilton, TN
Over: BRANCH
1.5 MI FROM SODDY DAISY, Hamilton, TN
Over: POE BRANCH
IN CITY OF SODDY-DAISY, Hamilton, TN
Over: POE BRANCH
IN CITY OF SODDY-DAISY, Hamilton, TN
Over: POE BRANCH
AT SR-29 JCT., Hamilton, TN
Over: BRANCH OF SALE CREEK
.3 MI WEST OF US 27, Hamilton, TN
Showing 14,701-14,750 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.