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: LITTLE LIMESTONE CREEK
IN TELFORD-S OF SR353, Washington, TN
Over: REEDY CREEK
N OF SR353-SW OF I181 JCT, Washington, TN
Over: SINKING CREEK
S OF I181-W OF GRAY, Washington, TN
Over: SINKING CREEK
N OF I181-W OF GRAY, Washington, TN
Over: KEPLING CREEK
E OF SR353-S OF TELFORD, Washington, TN
Over: FORD CREEK
.13 MI E OF I181, Washington, TN
Over: SINKING CREEK
1.8 M NW JCT SR75&I181, Washington, TN
Over: BRANCH
IN JOHNSON CITY, Washington, TN
Over: COBB CREEK
EAST OAKLAND AVENUE, Washington, TN
Over: CSX RAILROAD
IN JOHNSON CITY, Washington, TN
Over: COBB CREEK
IN JOHNSON CITY, Washington, TN
Over: KNOB CREEK
0.5 MI NE JCT SR34&SR354, Washington, TN
Over: CARROLL CREEK
.7 MI NE OF SR 36, Washington, TN
Over: BRANCH
SW OF JOHNSON CITY, Washington, TN
Over: FORD CREEK
1.33 MI N OF SPRINGS RD, Washington, TN
Over: CARSON CREEK
N OF US11E ON GREENE CO L, Washington, TN
Over: BRANCH
IN LIMESTONE-S OF US11E, Washington, TN
Over: LITTLE LIMESTONE CREEK
S OFF US11E NEAR TELFORD, Washington, TN
Over: BRANCH
E OFF SR75-N OF US11E, Washington, TN
Over: CSX RAILROAD
S OFF I181-W OF SR36 JCT, Washington, TN
Over: CEDAR CREEK
N OF I181-E, Washington, TN
Over: BOONES CREEK
NW OF I181-SR36 JCT, Washington, TN
Over: BOONES CREEK
NW OF SR 36 - I181 JCT, Washington, TN
Over: COBB CREEK
CREEKMORE DRIVE, Washington, TN
Over: BOONE CREEK
S OF I181-SR354 JCT, Washington, TN
Over: BOONES CREEK
SW OF I181-SR354 JCT, Washington, TN
Over: LIMESTONE CREEK
ON CO LINE-BTWN SR107&34, Washington, TN
Over: ONION CREEK
SE OF LIMESTONE, Washington, TN
Over: LITTLE LIMESTONE CREEK
SE OF LIMESTONE, Washington, TN
Over: BRANCH
N OF SR107-W OF SR353, Washington, TN
Over: BRANCH
N OFF SR107-E OF SR353, Washington, TN
Over: LITTLE LIMESTONE CREEK
W OFF SR353 AT TELFORD, Washington, TN
Over: CLARK CREEK
S OF SR107-W OF SR81, Washington, TN
Over: BOONES CREEK
N OF SR107, Washington, TN
Over: PAINTER CREEK
S OF SR107, Washington, TN
Over: CASSI CREEK
SW OF SR107 AT MT CARMEL, Washington, TN
Over: CHEROKEE CREEK
N OF SR107, Washington, TN
Over: DRY CREEK
2 M SE OF SR67-SR81 JCT, Washington, TN
Over: BRUSH CREEK
LEONABD STREET, Washington, TN
Over: SINKING CREEK
S OF JOHNSON CITY, Washington, TN
Over: SINKING CREEK
IN JOHNSON CITY AT CO LI., Washington, TN
Over: KNOB CREEK
E OF US11E N OF SR36 JCT, Washington, TN
Over: CSX RAILROAD
1 MI NE OF I181-SR75 EXCH, Washington, TN
Over: BOONES CREEK
RIDGE CLUB DRIVE, Washington, TN
Over: BRANCH
E OFF US11E, Washington, TN
Over: BRANCH
.6 M SW JCT SR400&I181, Washington, TN
Over: BUCKINGHAM RD (A144)
NE OF JOHNSON CITY, Washington, TN
Over: BUCKINGHAM RD (A144)
.4 M SE JCT I26 & SR75, Washington, TN
Over: POSSUM HOLLOW RD (A310)
2.1 N NW JCT I26 &S R354, Washington, TN
Over: CSX RAILROAD
1.3 M NW JCT I26 & SR354, Washington, TN
Showing 18,251-18,300 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.