Total bridges
137
Public highway bridges in Cumberland County
County profile · official public datasets
Cumberland County, TN
137 public highway bridges tracked in the FHWA National Bridge Inventory: 32.8% rated Good, 48.9% Fair, 18.2% Poor.
- 137
- Public bridges
- 32.8%
- Good condition
- 18.2%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Cumberland County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 95th
- of 95 on Poor share
- 18.2%
- Poor-condition share
- 137
- public highway bridges
- 1971
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Cumberland County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Cumberland County ranks #95 of 95 Tennessee counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 18.2%). Cumberland County, Tennessee contains 137 public highway bridges. Roughly 32.8% are rated “Good,” 48.9% “Fair,” and 18.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
32.8%
45 of 137 rated 7-9
Fair condition
48.9%
67 of 137 rated 5-6
Poor condition
18.2%
25 of 137 rated 4 or below
In-state Poor-share rank
#95 of 95
Among Tennessee counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 137 NBI-tracked bridges by lowest applicable component rating.
Good 32.8% (45)
Fair 48.9% (67)
Poor 18.2% (25)
Cumberland County's Poor-condition bridges carry 254,403 vehicle crossings a day
That is 24.1% of the county's reported daily bridge traffic on 18.2% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 10,176 crossings a day against 4,426 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 137 of 137 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
62% of Cumberland County's bridges have passed the 50-year mark
85 of the 137 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 32.8% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 14.3% of the county's Poor-condition bridge traffic
I40 over SR 24, built 1963, carries 36,293 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 25-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 254,403 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Cumberland County's bridges were built
137 bridges with a recorded construction year, grouped by decade
- 1920s 6
1920–1929
6 bridges
- 1930s 8
1930–1939
8 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s 15
1950–1959
15 bridges
- 1960s
1960–1969
42 bridges
- 1970s
1970–1979
18 bridges
- 1980s
1980–1989
20 bridges
- 1990s 11
1990–1999
11 bridges
- 2000s 11
2000–2009
11 bridges
- 2010s 3
2010–2019
3 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1960s, when 42 of the county's bridges still in the inventory were built, which is 30.7% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1971, 6 years older than the Tennessee average of 1977.
How Cumberland County compares with Tennessee's closest counties by inventory size
The 5 Tennessee counties nearest Cumberland County in number of bridges, with their condition splits. Its 18.2% Poor share is the 6th-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1977 is 6 years older.
Showing the 5 closest of 94 Tennessee counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Monroe County | 145 | 62.1% | 33.8% | 4.1% | 1976 |
| Polk County | 140 | 55% | 37.1% | 7.9% | 1979 |
| Campbell County | 137 | 24.8% | 71.5% | 3.6% | 1973 |
| Cumberland County (this page) | 137 | 32.8% | 48.9% | 18.2% | 1971 |
| Lewis County | 136 | 19.1% | 77.9% | 2.9% | 1979 |
| Jackson County | 131 | 39.7% | 57.3% | 3.1% | 1978 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Cumberland County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Cumberland County, both outside Tennessee so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TN (137 bridges here).
- Fremont County, CO · 137 bridges
- Prowers County, CO · 137 bridges
- Fremont County, ID · 137 bridges
- Orange County, IN · 137 bridges
Similar average build year
Nearest mean year-built outside TN (1971 here).
- Wayne County, MI · avg 1971 · 1,026 bridges
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (67)
NFA A821
FairOver: WEST FORK CREEK
SOUTH OF SR70, Cumberland, TN
Built 1982 Load: 32.4 t ADT: 90
NFA A821
FairOver: CANEY FORK RIVER
SOUTH OF SR70, Cumberland, TN
Built 1978 Load: 32.4 t ADT: 90
NFA B017
FairOver: BEAM CREEK
NORTH OF SR70, Cumberland, TN
Built 1986 Load: 32.4 t ADT: 100
0B261
FairOver: LAKE OVERFLOW
OVERFLOW LAKE GLASGLOW, Cumberland, TN
Built 1980 Load: 32.4 t ADT: 559
NFA B302
FairOver: ST GEORGE LAKE OVERFLOW
IN FAIRFIELD GLADE, Cumberland, TN
Built 1980 Load: 32.4 t ADT: 50
NFA B373
FairOver: LAKE CANTERBURY OVERFLOW
IN FAIRFIELD GLADE, Cumberland, TN
Built 1980 Load: 32.4 t ADT: 50
NFA 885 (SA 1810)
FairOver: DADDY CREEK
NORTH OF I40, Cumberland, TN
Built 1974 Load: 32.4 t ADT: 532
FAP 28
FairOver: I40
1.80 MI.N.OF CROSSVILLE, Cumberland, TN
Built 1966 Load: 32.4 t ADT: 21,423
I40 EBL
FairOver: NFA A244
.1MI FROM SR1, Cumberland, TN
Built 1967 Load: 32.4 t ADT: 30,660
I40 WBL
FairOver: SR 1
1 MI FROM COX VALLEY DR, Cumberland, TN
Built 1966 Load: 32.4 t ADT: 30,660
NFA 884 (SA 1809)
FairOver: I40
1.1 MI FROM SR1, Cumberland, TN
Built 2006 Load: 32.4 t ADT: 2,188
I40 EBL & WBL
FairOver: FALL CREEK
28.66 MI POST 333, Cumberland, TN
Built 1966 Load: 32.4 t ADT: 29,862
I40 EBL & WBL
FairOver: MILLSTONE CREEK
3 MI FROM SR1, Cumberland, TN
Built 1966 Load: 32.4 t ADT: 29,862
I40 EBL
FairOver: PINEY CREEK
1.8 MI FM ROANE CO. LI, Cumberland, TN
Built 1968 Load: 32.4 t ADT: 30,681
FAP 28
FairOver: LICK FORK CREEK
5 MI.S.OF FENTRESS CO., Cumberland, TN
Built 1952 Load: 32.4 t ADT: 5,937
I40 WBL
FairOver: PINEY CREEK
1.8 MI FM ROANE CO. LI, Cumberland, TN
Built 1968 Load: 33.4 t ADT: 30,681
FAP 68
FairOver: WHITES CREEK
CUMBERLAND-RHEA CO LINE, Cumberland, TN
Built 1980 Load: 36.6 t ADT: 3,296
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.