Total bridges
832
Public highway bridges in Davidson County
County profile · official public datasets
Davidson County, TN
832 public highway bridges tracked in the FHWA National Bridge Inventory: 49% rated Good, 46.3% Fair, 4.7% Poor.
- 832
- Public bridges
- 49%
- Good condition
- 4.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Davidson County posts a higher-than-median Poor-condition share among rated counties in the state across large county bridge inventory.
- 65th
- of 95 on Poor share
- 4.7%
- Poor-condition share
- 832
- public highway bridges
- 1973
- 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.
Davidson County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Davidson County ranks #65 of 95 Tennessee counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.7%). Davidson County, Tennessee contains 832 public highway bridges. Roughly 49% are rated “Good,” 46.3% “Fair,” and 4.7% “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
49%
408 of 832 rated 7-9
Fair condition
46.3%
385 of 832 rated 5-6
Poor condition
4.7%
39 of 832 rated 4 or below
In-state Poor-share rank
#65 of 95
Among Tennessee counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 832 NBI-tracked bridges by lowest applicable component rating.
Good 49% (408)
Fair 46.3% (385)
Poor 4.7% (39)
Davidson County's Poor-condition bridges carry 1,534,143 vehicle crossings a day
That is 5.2% of the county's reported daily bridge traffic on 4.7% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 39,337 crossings a day against 27,809 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 832 of 832 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
54.3% of Davidson County's bridges have passed the 50-year mark
452 of the 832 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 49% 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 10.1% of the county's Poor-condition bridge traffic
I24 over MILL CREEK, built 1958, carries 155,629 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 39-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,534,143 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Davidson County's bridges were built
832 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1910s 3
1910–1919
3 bridges
- 1920s 34
1920–1929
34 bridges
- 1930s 21
1930–1939
21 bridges
- 1940s 30
1940–1949
30 bridges
- 1950s 81
1950–1959
81 bridges
- 1960s
1960–1969
213 bridges
- 1970s
1970–1979
109 bridges
- 1980s
1980–1989
159 bridges
- 1990s 72
1990–1999
72 bridges
- 2000s 73
2000–2009
73 bridges
- 2010s 28
2010–2019
28 bridges
- 2020s 8
2020–2029
8 bridges
What this shows Construction peaked in the 1960s, when 213 of the county's bridges still in the inventory were built, which is 25.6% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1973) matches the Tennessee average (1977).
How Davidson County compares with Tennessee's closest counties by inventory size
The 5 Tennessee counties nearest Davidson County in number of bridges, with their condition splits. Its 4.7% Poor share is the 4th-lowest of these 6. Its average build year of 1973 against a peer-group mean of 1978 is 5 years older.
Showing the 5 closest of 94 Tennessee counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Shelby County | 1,077 | 21.3% | 73.5% | 5.2% | 1977 |
| Davidson County (this page) | 832 | 49% | 46.3% | 4.7% | 1973 |
| Knox County | 588 | 49.8% | 48.6% | 1.5% | 1974 |
| Williamson County | 520 | 63.5% | 33.1% | 3.5% | 1984 |
| Hamilton County | 464 | 46.8% | 47% | 6.3% | 1976 |
| Rutherford County | 428 | 60.3% | 35.5% | 4.2% | 1977 |
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 Davidson 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 Davidson County, both outside Tennessee so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TN (832 bridges here).
- Duval County, FL · 831 bridges
- Montgomery County, PA · 828 bridges
- Hillsborough County, FL · 840 bridges
- Middlesex County, MA · 818 bridges
Similar average build year
Nearest mean year-built outside TN (1973 here).
- Jefferson County, AL · avg 1973 · 1,068 bridges
- Erie County, NY · avg 1973 · 906 bridges
- Lancaster County, PA · avg 1973 · 801 bridges
- Sacramento County, CA · avg 1973 · 740 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (408)
FAP 408 (SR 155)
GoodOver: NORTH FORK EWING CR
@ BRICK CHURCH PK & I24, Davidson, TN
Built 1990 Load: 68.4 t ADT: 53,917
I40
GoodOver: MCCRORY CREEK
.5 M E SR45&I40, Davidson, TN
Built 1960 Load: 77.4 t ADT: 118,938
I65
GoodOver: BRANCH
2.0 M N SR45&I65, Davidson, TN
Built 1966 Load: 77.4 t ADT: 166,761
NFA B304
GoodOver: BRANCH
CHUTNEY DR@ANTIOCH, Davidson, TN
Built 1960 Load: 81.0 t ADT: 3,880
NFA 1008
GoodOver: BRANCH
BURKITT RD - NASHVILLE, Davidson, TN
Built 1993 Load: 84.6 t ADT: 3,980
FAU 3250
GoodOver: BROWN CREEK
1.8 M NW JCT SR6&SR255, Davidson, TN
Built 1931 Load: 84.6 t ADT: 15,941
NFA E507
GoodOver: BRANCH
CHADWICK LN - NASHVILLE, Davidson, TN
Built 1990 Load: 87.2 t ADT: 3,880
FAU1011
GoodOver: J.PERCY PRIEST DAM SPLWY
NASHVILLE TN, Davidson, TN
Built 1967 Load: 91.4 t ADT: 11,180
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.