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.

Total bridges

149

Public highway bridges in Franklin County

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

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).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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.

Bridge inventory size and condition shares for Franklin County and the 5 Vermont counties closest to it in inventory size
County Bridges Poor
Orange County 208 1.9%
Chittenden County 184 2.2%
Orleans County 181 2.8%
Franklin County (this page) 149 0%
Addison County 143 2.8%
Lamoille County 127 3.9%

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).

Similar average build year

Nearest mean year-built outside VT (1963 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (149)

VT 00207 ML

Fair

Over: MISSISQUOI RIVER

0.5 MI S JCT. VT.78, Franklin, VT

Built 1976 Load: 41.7 t ADT: 2,800

VT 00104 ML

Fair

Over: 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

Fair

Over: PIKE RIVER

1.7 MI S JCT. VT.120, Franklin, VT

Built 1947 Load: 45.4 t ADT: 960

C3051

Fair

Over: LAMOILLE RIVER

@ JCT W VT104, Franklin, VT

Built 1930 Load: 46.3 t ADT: 690

US 00007 ML

Fair

Over: 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

Fair

Over: 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

Fair

Over: I 89 OVER NECRR

1.0 MI N EXIT 18, Franklin, VT

Built 1967 Load: 57.2 t ADT: 22,000

I 00089 ML

Fair

Over: I 89 OVER NECRR

1.0 MI N EXIT 18, Franklin, VT

Built 1967 Load: 57.2 t ADT: 22,000

I 00089 ML

Fair

Over: 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

Fair

Over: 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

Fair

Over: I 89 OVER BIKE PATH

0.3 MI S EXIT 21, Franklin, VT

Built 1964 Load: 58.1 t ADT: 10,700

C3024

Fair

Over: MILL BROOK

0.1 MI TO JCT C3 TH 2, Franklin, VT

Built 1978 Load: 68.0 t ADT: 200

I 00089 ML

Fair

Over: MISSISQUOI RIVER

0.6 MI S EXIT 21, Franklin, VT

Built 1964 Load: 68.9 t ADT: 10,700

I 00089 ML

Fair

Over: MISSISQUOI RIVER

0.6 MI S EXIT 21, Franklin, VT

Built 1964 Load: 68.9 t ADT: 10,700

VT 00105 ML

Fair

Over: MISSISQUOI RIVER

1.5 MI E JCT. VT.118, Franklin, VT

Built 1967 Load: 72.6 t ADT: 3,000

C3035

Good

Over: MILL BROOK

0.1 MI TO JCT VT 104, Franklin, VT

Built 1865 Load: 3.6 t ADT: 600

C3049

Good

Over: BLACK CREEK

0.05 MI TO JCT VT 36, Franklin, VT

Built 1865 Load: 5.4 t ADT: 130

C3042

Good

Over: TROUT RIVER

0.2 MI W. OF JCT VT 118, Franklin, VT

Built 1883 Load: 6.4 t ADT: 50

C3027

Good

Over: SO. BR. TROUT RIVER

0.1 MI TO JCT VT 118, Franklin, VT

Built 1883 Load: 9.1 t ADT: 40

VT 0105A ALT

Good

Over: MISSISQUOI RIVER

1.8 MI N JCT. VT.105, Franklin, VT

Built 1929 Load: 11.8 t ADT: 220

C2003

Good

Over: HUNGERFORD BROOK

0.5 MI TO JCT W CL2 TH4, Franklin, VT

Built 1957 Load: 12.7 t ADT: 1,220

C3067

Good

Over: ELM BROOK

0.05 MI TO JCT C3 TH50, Franklin, VT

Built 2012 Load: 16.3 t ADT: 10

TR 02 FAS 281

Good

Over: STONES BROOK

5.5 MI E JCT. VT.104, Franklin, VT

Built 1959 Load: 22.7 t ADT: 260

VT 00207 ML

Good

Over: HUNGERFORD BROOK

1.5 MI S JCT. VT.78, Franklin, VT

Built 1986 Load: 22.7 t ADT: 1,900

C3022

Good

Over: ROCK RIVER

0.1 MI TO JCT W CL4 TH23, Franklin, VT

Built 1939 Load: 24.5 t ADT: 100

C3050

Good

Over: BLACK CREEK

0.05 MI TO JCT W VT36, Franklin, VT

Built 1951 Load: 25.4 t ADT: 700

C3004

Good

Over: TROUT RIVER

@ JCT W VT118, Franklin, VT

Built 1863 Load: 25.4 t ADT: 450

VT 00108 ML

Good

Over: MISSISQUOI RIVER

0.2 MI S JCT. VT.105 W, Franklin, VT

Built 1970 Load: 25.4 t ADT: 3,000

VT 00120 ML

Good

Over: PIKE RIVER

0.2 MI W JCT VT 108, Franklin, VT

Built 1956 Load: 27.2 t ADT: 1,500

C3008

Good

Over: BOQUE BRANCH

0.08 MI TO JCT W C3 TH10, Franklin, VT

Built 1919 Load: 28.1 t ADT: 100

C3033

Good

Over: S. BRANCH TROUT RIVER

0.1 MI TO JCT VT 118, Franklin, VT

Built 1988 Load: 28.1 t ADT: 240

C2002

Good

Over: THE BRANCH

0.4 MI TO JCT W VT108, Franklin, VT

Built 1937 Load: 30.8 t ADT: 350

C3006

Good

Over: BLACK FALLS BROOK

AT JCT WITH C3 TH7, Franklin, VT

Built 1970 Load: 31.8 t ADT: 100

C3008

Good

Over: PIKE RIVER

02 MI N JCT TH15, Franklin, VT

Built 2007 Load: 32.7 t ADT: 30

C3037

Good

Over: Stones Brook

0.1 MI TO JCT C3 TH 51, Franklin, VT

Built 2020 Load: 32.7 t ADT: 200

C2003

Good

Over: FAIRFIELD RIVER

0.2 MI TO JCT C2 TH 1, Franklin, VT

Built 1996 Load: 32.7 t ADT: 190

C3014

Good

Over: BROOK

0.25 MI TO JCT W CL2 TH3, Franklin, VT

Built 1976 Load: 32.7 t ADT: 400

C3019

Good

Over: WADE BROOK

0.6 MI TO JCT VT 58, Franklin, VT

Built 1988 Load: 32.7 t ADT: 40

C30LE

Good

Over: STEVENS BROOK

0.2 MI TO JCT TH154/NASON, Franklin, VT

Built 1985 Load: 32.7 t ADT: 100

C2003

Good

Over: TYLER BRANCH

1.3 MI S JCT VT 108, Franklin, VT

Built 1981 Load: 33.6 t ADT: 500

C3047

Good

Over: BLACK CREEK

0.05 MI TO VT W VT36, Franklin, VT

Built 2015 Load: 33.6 t ADT: 20

C3034

Good

Over: S. BRANCH TROUT RIVER

0.05 MI TO JCT VT 118, Franklin, VT

Built 1990 Load: 34.5 t ADT: 10

C3020

Good

Over: JEWETT BROOK

1.3 MI TO JCT W CL2 TH6, Franklin, VT

Built 1919 Load: 34.5 t ADT: 575

US 00007 ML

Good

Over: I 89 UNDER US 7

0.3 MI N JCT VT 104A, Franklin, VT

Built 1968 Load: 34.5 t ADT: 7,500

C2002

Good

Over: TYLER BRANCH

AT JCT C2 TH 1, Franklin, VT

Built 2014 Load: 35.4 t ADT: 690

C2004

Good

Over: TYLER BRANCH

@ JCT W CL3 TH43, Franklin, VT

Built 2021 Load: 35.4 t ADT: 150

C2001

Good

Over: LAMOILLE RIVER

0.1 MI S JCT VT 104A, Franklin, VT

Built 1986 Load: 35.4 t ADT: 600

C2006

Good

Over: ROCK RIVER

0.4 MI N JCT US RTE 7, Franklin, VT

Built 1981 Load: 35.4 t ADT: 180

C2004

Good

Over: MISSISQUOI RIVER

0.02 MI TO JCT W VT78, Franklin, VT

Built 2019 Load: 35.4 t ADT: 1,200

C3034

Good

Over: BLACK CREEK

1.95 MI TO JCT W VT108, Franklin, VT

Built 1919 Load: 36.3 t ADT: 50
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.