Total bridges
149
Public highway bridges in Franklin County
County profile · official public datasets
Franklin County, VT
149 public highway bridges tracked in the FHWA National Bridge Inventory: 56.4% rated Good, 43.6% Fair, 0% Poor.
- 149
- Public bridges
- 56.4%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Franklin County posts a top-10% lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 7%
- lowest Poor share in state
- 0%
- Poor-condition share
- 149
- public highway bridges
- 1963
- 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.
Franklin County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Franklin County ranks #1 of 14 Vermont counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Franklin County, Vermont contains 149 public highway bridges. Roughly 56.4% are rated “Good,” 43.6% “Fair,” and 0% “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
56.4%
84 of 149 rated 7-9
Fair condition
43.6%
65 of 149 rated 5-6
Poor condition
0%
0 of 149 rated 4 or below
In-state Poor-share rank
#1 of 14
Among Vermont counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 149 NBI-tracked bridges by lowest applicable component rating.
Good 56.4% (84)
Fair 43.6% (65)
Poor 0% (0)
64.4% of Franklin County's bridges have passed the 50-year mark
96 of the 149 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 56.4% 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.
When Franklin County's bridges were built
149 bridges with a recorded construction year, grouped by decade
- pre-1900 8
Built before 1900
8 bridges
- 1900s 2
1900–1909
2 bridges
- 1910s 7
1910–1919
7 bridges
- 1920s 6
1920–1929
6 bridges
- 1930s 10
1930–1939
10 bridges
- 1940s 7
1940–1949
7 bridges
- 1950s
1950–1959
17 bridges
- 1960s
1960–1969
36 bridges
- 1970s 8
1970–1979
8 bridges
- 1980s
1980–1989
17 bridges
- 1990s 9
1990–1999
9 bridges
- 2000s 8
2000–2009
8 bridges
- 2010s 9
2010–2019
9 bridges
- 2020s 5
2020–2029
5 bridges
What this shows Construction peaked in the 1960s, when 36 of the county's bridges still in the inventory were built, which is 24.2% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1963) matches the Vermont average (1964).
How Franklin County compares with Vermont's closest counties by inventory size
The 5 Vermont counties nearest Franklin County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1963 against a peer-group mean of 1965 is in line with the group.
Showing the 5 closest of 13 Vermont counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Orange County | 208 | 50.5% | 47.6% | 1.9% | 1959 |
| Chittenden County | 184 | 54.9% | 42.9% | 2.2% | 1967 |
| Orleans County | 181 | 52.5% | 44.8% | 2.8% | 1971 |
| Franklin County (this page) | 149 | 56.4% | 43.6% | 0% | 1963 |
| Addison County | 143 | 51.7% | 45.5% | 2.8% | 1965 |
| Lamoille County | 127 | 54.3% | 41.7% | 3.9% | 1964 |
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 Franklin 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 Franklin County, both outside Vermont so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside VT (149 bridges here).
- Tallapoosa County, AL · 149 bridges
- Drew County, AR · 149 bridges
- Madison County, AR · 149 bridges
- Walker County, GA · 149 bridges
Similar average build year
Nearest mean year-built outside VT (1963 here).
- Worcester County, MA · avg 1963 · 1,014 bridges
- Honolulu County, HI · avg 1963 · 682 bridges
- Chester County, PA · avg 1963 · 680 bridges
- Essex County, NJ · avg 1963 · 505 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (65)
VT 00207 ML
FairOver: MISSISQUOI RIVER
0.5 MI S JCT. VT.78, Franklin, VT
Built 1976 Load: 41.7 t ADT: 2,800
VT 00104 ML
FairOver: I 89 UNDER VT 104
0.6 MI N JCT. VT.36, Franklin, VT
Built 1967 Load: 45.4 t ADT: 6,400
TR 03 FAS 302
FairOver: PIKE RIVER
1.7 MI S JCT. VT.120, Franklin, VT
Built 1947 Load: 45.4 t ADT: 960
C3051
FairOver: LAMOILLE RIVER
@ JCT W VT104, Franklin, VT
Built 1930 Load: 46.3 t ADT: 690
US 00007 ML
FairOver: US 7 OVER NECRR
2.2 MI S JCT. VT.36 E, Franklin, VT
Built 1936 Load: 50.8 t ADT: 15,700
I 00089 ML
FairOver: I 89 OVER BIKE PATH
0.3 MI S EXIT 21, Franklin, VT
Built 1964 Load: 53.5 t ADT: 10,700
I 00089 ML
FairOver: I 89 OVER NECRR
1.0 MI N EXIT 18, Franklin, VT
Built 1967 Load: 57.2 t ADT: 22,000
I 00089 ML
FairOver: I 89 OVER NECRR
1.0 MI N EXIT 18, Franklin, VT
Built 1967 Load: 57.2 t ADT: 22,000
I 00089 ML
FairOver: I 89 OVER TH NO 3
3.1 MI S EXIT 21, Franklin, VT
Built 1967 Load: 57.2 t ADT: 10,700
I 00089 ML
FairOver: I 89 OVER TH NO 3
3.1 MI S EXIT 21, Franklin, VT
Built 1967 Load: 58.1 t ADT: 10,700
I 00089 ML
FairOver: I 89 OVER BIKE PATH
0.3 MI S EXIT 21, Franklin, VT
Built 1964 Load: 58.1 t ADT: 10,700
C3024
FairOver: MILL BROOK
0.1 MI TO JCT C3 TH 2, Franklin, VT
Built 1978 Load: 68.0 t ADT: 200
I 00089 ML
FairOver: MISSISQUOI RIVER
0.6 MI S EXIT 21, Franklin, VT
Built 1964 Load: 68.9 t ADT: 10,700
I 00089 ML
FairOver: MISSISQUOI RIVER
0.6 MI S EXIT 21, Franklin, VT
Built 1964 Load: 68.9 t ADT: 10,700
VT 00105 ML
FairOver: MISSISQUOI RIVER
1.5 MI E JCT. VT.118, Franklin, VT
Built 1967 Load: 72.6 t ADT: 3,000
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.