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
1 MI EAST OF DAYTON, Rhea, TN
Over: CAMP CREEK
.85 MI FROM US 27, Rhea, TN
Over: MUDDY CREEK
4 MI NE OF SPRING CITY, Rhea, TN
Over: TOWN CREEK
.01 MI EAST OF US 27, Rhea, TN
Over: TOWN CREEK
.3MI EAST OF US 27, Rhea, TN
Over: TOWN CREEK
.01 MI FROM US 27, Rhea, TN
Over: RICHLAND CREEK
0.1 MILES NW OF US-27, Rhea, TN
Over: NORFOLK S. RAILROAD
0.27 MILES NW OF US-27, Rhea, TN
Over: CLEAR CREEK
2.7 MI.NE.OLD WASHINGTON, Rhea, TN
Over: SALE CREEK
IN GRAYSVILLE CITY LIMITS, Rhea, TN
Over: STEWARTS CREEK
1MI WEST OF US 27, Rhea, TN
Over: RICHLAND CREEK OVERFLOW
IN DAYTON CITY LIMITS, Rhea, TN
Over: RICHLAND CREEK OVERFLOW
IN DAYTON CITY LIMITS, Rhea, TN
Over: TOWN CREEK
.7 MI.S.W. OF SPRING CITY, Rhea, TN
Over: RAVINE
CITY LIMITS - SPRING CITY, Rhea, TN
Over: CAMP CREEK
1.12 MI.SW.OF ROANE CO., Rhea, TN
Over: BROYLES BRANCH
IN DAYTON CITY LIMITS, Rhea, TN
Over: BUSH CREEK
4 MI S.W. WATTS BAR DAM, Rhea, TN
Over: SOUTHERN RAILWAY
1 MILE NE OF HWY 70, Roane, TN
Over: TVA HAUL ROAD (PRIVATE)
N OF KINGSTON STEAM PLANT, Roane, TN
Over: CAVE CREEK
N OF TN RIVER-AT LOUDON C, Roane, TN
Over: KINGS CREEK
JUST NE OF EMORY-CLINCH J, Roane, TN
Over: SOUTHERN RAILROAD
IN OAK RIDGE, Roane, TN
Over: SOUTHERN RAILWAY
IN THE CITY OF ROCKWOOD, Roane, TN
Over: CARDIFF CREEK
IN THE CITY OF ROCKWOOD, Roane, TN
Over: BLACK CREEK
BLACK CREEK RD, Roane, TN
Over: CLIFTY CREEK
ON CO LINE-AT EMORY RIVER, Roane, TN
Over: CANEY CREEK
W OF SR29-BTWN I40& US 27, Roane, TN
Over: BOWMAN BRANCH
N OFF US70-SW OF KINGSTON, Roane, TN
Over: BRANCH
E OFF SR58-AT CLINCH RIV, Roane, TN
Over: PAW PAW CREEK
S OF I40 ON LOUDON CO LN, Roane, TN
Over: PAW PAW CREEK
S OF I40-ON LOUDON CO LN, Roane, TN
Over: SMITH CREEK
1 M SE OF US70 AT KINGSTO, Roane, TN
Over: RILEY CREEK
E OFF SR58-.8 M N OF SR72, Roane, TN
Over: PAINT ROCK CREEK
1.5 M NW OF SR72 AT CO LN, Roane, TN
Over: CRIPPLE CREEK
W OFF SR326 JUST S OF I40, Roane, TN
Over: PAINT ROCK CREEK
1.5 M S OF SR72-SR322 JCT, Roane, TN
Over: CEDAR CREEK
W OFF SR322-2.6 M N OF CL, Roane, TN
Over: BRANCH
W OFF SR322-2 M N OF CO L, Roane, TN
Over: RILEY CREEK
E OFF SR58-3 M S OF SR72, Roane, TN
Over: BARNARD NARROWS BRANCH
E OFF SR58-3.3 M S OF 72, Roane, TN
Over: BRANCH
W OF SR322 NEAR LOUDON CO, Roane, TN
Over: CARDIFF CREEK
N OFF US 27-.7 M W OF 382, Roane, TN
Over: RILEY CREEK
E OFF SR 58-1.2 M S OF 72, Roane, TN
Over: BUCK CREEK
1.5 M SE OF US70-SR326 JC, Roane, TN
Over: EAST FORK POPLAR CREEK
0.2 MILE NW OF SR95, Roane, TN
Over: EAST FORK POPLAR CREEK
0.5 MILE WEST OF SR95, Roane, TN
Over: I40
1.5 M W OF LOUDON CO LINE, Roane, TN
Over: SOUTHERN RAILWAY
.3 M NE JCT SR29&SR61, Roane, TN
Over: PAWPAW CREEK
N OF I40-1 M W OF LOUDON, Roane, TN
Showing 16,951-17,000 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.