County profile · official public datasets

Caledonia County, VT

247 public highway bridges tracked in the FHWA National Bridge Inventory: 53% rated Good, 45.3% Fair, 1.6% Poor.

247
Public bridges
53%
Good condition
1.6%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Caledonia County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 29%
lowest Poor share in state
1.6%
Poor-condition share
247
public highway bridges
1965
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.

Caledonia County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Caledonia County ranks #4 of 14 Vermont counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.6%). Caledonia County, Vermont contains 247 public highway bridges. Roughly 53% are rated “Good,” 45.3% “Fair,” and 1.6% “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

247

Public highway bridges in Caledonia County

Good condition

53%

131 of 247 rated 7-9

Fair condition

45.3%

112 of 247 rated 5-6

Poor condition

1.6%

4 of 247 rated 4 or below

In-state Poor-share rank

#4 of 14

Among Vermont counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 247 NBI-tracked bridges by lowest applicable component rating.

Good
53% (131)
Fair
45.3% (112)
Poor
1.6% (4)

Caledonia County's Poor-condition bridges carry 2,145 vehicle crossings a day

That is 0.3% of the county's reported daily bridge traffic on 1.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 536 crossings a day against 3,266 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 246 of 247 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

51% of Caledonia County's bridges have passed the 50-year mark

126 of the 247 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 53% 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 52% of the county's Poor-condition bridge traffic

NH 18 over CONNECTICUT RIVER, built 1934, carries 1,115 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 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 2,145 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Caledonia County's bridges were built

247 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 73 of the county's bridges still in the inventory were built, which is 29.6% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1965) matches the Vermont average (1964).

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

How Caledonia County compares with Vermont's closest counties by inventory size

The 5 Vermont counties nearest Caledonia County in number of bridges, with their condition splits. Its 1.6% Poor share is the 2nd-lowest of these 6. Its average build year of 1965 against a peer-group mean of 1964 is in line with the group.

Showing the 5 closest of 13 Vermont counties eligible for comparison.

Bridge inventory size and condition shares for Caledonia County and the 5 Vermont counties closest to it in inventory size
County Bridges Poor
Rutland County 266 2.6%
Washington County 248 3.6%
Caledonia County (this page) 247 1.6%
Bennington County 215 0.9%
Orange County 208 1.9%
Chittenden County 184 2.2%

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 Caledonia 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 Caledonia County, both outside Vermont so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside VT (247 bridges here).

Similar average build year

Nearest mean year-built outside VT (1965 here).

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

Good-condition bridges (131)

TR 0TH12

Good

Over: TH NO 12 OVER I 91

3.7 MI N EXIT 18, Caledonia, VT

Built 1978 Load: 37.2 t ADT: 100

TR 00TH4

Good

Over: TH NO 4 OVER I 93

2.0 MI N EXIT 1, Caledonia, VT

Built 1982 Load: 38.1 t ADT: 700

C2009

Good

Over: STEVENS RIVER

0.01 MI TO JCT W CL2 TH1, Caledonia, VT

Built 1988 Load: 39.0 t ADT: 300

I 00091 ML

Good

Over: I 91 OVER TH NO 9

1.7 MI N EXIT 23 I 91, Caledonia, VT

Built 1972 Load: 39.0 t ADT: 6,500

VT 00232 ML

Good

Over: BEAVER BROOK

3.8 MI N JCT. U.S.302, Caledonia, VT

Built 1964 Load: 39.0 t ADT: 720

TR 01 FAS 193

Good

Over: WELLS RIVER

0.1 MI S JCT. U.S.302, Caledonia, VT

Built 1919 Load: 39.9 t ADT: 960

VT 00114 ML

Good

Over: DISH MILL BROOK

4.4 MI N JCT. U.S.5, Caledonia, VT

Built 2015 Load: 39.9 t ADT: 3,700

C3030

Good

Over: HOUGHTON BROOK

0.5 MI JCT TH30 + TH 42, Caledonia, VT

Built 2005 Load: 40.8 t ADT: 100

C3061

Good

Over: WATER ANDRIC

0.2 MI JCT TH 61 + TH 79, Caledonia, VT

Built 2011 Load: 40.8 t ADT: 50

C3049

Good

Over: NICHOLS BROOK

AT JCT TH 49 + TH 46, Caledonia, VT

Built 2001 Load: 40.8 t ADT: 100

C3046

Good

Over: BROOK

@ JCT W CL2 TH1, Caledonia, VT

Built 2001 Load: 40.8 t ADT: 20

C3005

Good

Over: HOUGHTONS BROOK

0.2 MI TO JCT W CL3 TH24, Caledonia, VT

Built 1999 Load: 40.8 t ADT: 250

C3085

Good

Over: PASSUMPSIC RIVER

@ JCT W US5, Caledonia, VT

Built 2008 Load: 40.8 t ADT: 820

C2001

Good

Over: STANNARD BROOK

0.1 MI E JCT TH14, Caledonia, VT

Built 2012 Load: 40.8 t ADT: 225

C2003

Good

Over: CALENDAR BROOK

1.2 MI JCT TH 3 + TH 1, Caledonia, VT

Built 2005 Load: 40.8 t ADT: 230

C3045

Good

Over: JOES BROOK

0.1 MI TO JCT W VT15, Caledonia, VT

Built 2017 Load: 40.8 t ADT: 30

C2001

Good

Over: SO. WHEELOCK BRANCH

0.20 MI TO JCT W TH1+TH5, Caledonia, VT

Built 2010 Load: 40.8 t ADT: 100

C2001

Good

Over: SO. WHEELOCK BRANCH

0.10 MI TO JCT W TH1+TH5, Caledonia, VT

Built 2005 Load: 40.8 t ADT: 100

C2001

Good

Over: SO. WHEELOCK BRANCH

0.01 MI TO JCT W TH1+TH5, Caledonia, VT

Built 2011 Load: 40.8 t ADT: 100

US 00302 ML

Good

Over: WELLS RIVER

9.0 MI E JCT. VT.25, Caledonia, VT

Built 1980 Load: 40.8 t ADT: 2,400

I 00093 ML

Good

Over: I 93 OVER TH NO 17

6.0 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 40.8 t ADT: 6,200

I 00093 ML

Good

Over: I 93 OVER TH NO 1

1.8 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 40.8 t ADT: 6,200

I 00093 ML

Good

Over: I 93 OVER TH NO 1

1.8 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 40.8 t ADT: 6,200

I 00091 ML

Good

Over: I 91 OVER TH NO 68

2.8 MI N EXIT 20, Caledonia, VT

Built 1975 Load: 41.7 t ADT: 8,800

VT 00232 ML

Good

Over: DEPOT BROOK

3.2 MI N JCT. U.S.302, Caledonia, VT

Built 1964 Load: 41.7 t ADT: 720

C3040

Good

Over: SLEEPERS RIVER

0.05 MI JCT TH 40 + TH 2, Caledonia, VT

Built 1996 Load: 42.6 t ADT: 75

I 00091 ML

Good

Over: I 91 OVER TH 10 BRK

1.5 MI N EXIT 22, Caledonia, VT

Built 1975 Load: 42.6 t ADT: 11,900

I 00091 ML

Good

Over: I 91 OVER TH 10 BRK

1.5 MI N EXIT 22, Caledonia, VT

Built 1975 Load: 42.6 t ADT: 11,900

VT 00114 ML

Good

Over: PASSUMPSIC RIVER

0.4 MI N JCT. U.S.5, Caledonia, VT

Built 1987 Load: 42.6 t ADT: 5,300

VT 00114 ML

Good

Over: EAST BR PASSUMPSIC RIVER

7.7 MI N JCT. U.S.5, Caledonia, VT

Built 1990 Load: 42.6 t ADT: 1,700

VT 0002B ML

Good

Over: VT 2B OVER LVRR

0.4 MI W JCT US2 E, Caledonia, VT

Built 2017 Load: 42.6 t ADT: 360

C3038

Good

Over: SIMPSON BROOK

0.15 MI TO JCT W C3 TH45, Caledonia, VT

Built 1978 Load: 43.5 t ADT: 400

TR 03 FAS 257

Good

Over: LAMOILLE RIVER

0.1 MI N JCT. VT.15, Caledonia, VT

Built 2000 Load: 43.5 t ADT: 6,250

C3031

Good

Over: LAMOILLE RIVER

0.05 MI JCT TH 31 + VT16, Caledonia, VT

Built 2002 Load: 44.5 t ADT: 90

C2001

Good

Over: STANNARD BROOK

@ JCT W/ CL3 TH20, Caledonia, VT

Built 2001 Load: 44.5 t ADT: 225

US 00005 ML

Good

Over: PASSUMPSIC RIVER

1.0 MI N JCT. U.S.2 E, Caledonia, VT

Built 1989 Load: 44.5 t ADT: 6,700

C3012

Good

Over: JOES BROOK

1.6 MI JCT TH 12 + TH 3, Caledonia, VT

Built 1985 Load: 45.4 t ADT: 30

C3003

Good

Over: MILLER RUN

0.05 MI JCT TH 3 + VT122, Caledonia, VT

Built 1940 Load: 45.4 t ADT: 400

US 00002 ML

Good

Over: MOOSE RIVER

0.6 MI E JCT VT.18, Caledonia, VT

Built 2013 Load: 45.4 t ADT: 4,700

I 00091 ML

Good

Over: I 91 OVER US 5

0.5 MI S EXIT 23, Caledonia, VT

Built 1974 Load: 45.4 t ADT: 11,900

I 00091 ML

Good

Over: I 91NB OVER TH NO 1

5.5 MI N EXIT 24 I 91, Caledonia, VT

Built 1972 Load: 45.4 t ADT: 4,800

VT 00114 ML

Good

Over: PASSUMPSIC RIVER

0.6 MI N JCT. U.S.5, Caledonia, VT

Built 2007 Load: 45.4 t ADT: 5,300

I 00091 ML

Good

Over: I 91 OVER TH NO 9

1.3 MI N EXIT 24 I91, Caledonia, VT

Built 1972 Load: 46.3 t ADT: 4,800

C3024

Good

Over: HEALTH BROOK

@ JCT W CL3 TH27, Caledonia, VT

Built 1988 Load: 48.1 t ADT: 80

C3056

Good

Over: EAST BR.PASSUMPSIC RIVER

0.1 MI JCT TH 56 + VT114, Caledonia, VT

Built 2006 Load: 49.9 t ADT: 20

US 00302 ML

Good

Over: SOUTH BRANCH WELLS RIVER

8.7 MI E JCT. VT.25, Caledonia, VT

Built 1990 Load: 49.9 t ADT: 2,400

VT 00015 ML

Good

Over: LAMOILLE RIVER

0.1 MI E JCT. VT.14 N, Caledonia, VT

Built 1984 Load: 49.9 t ADT: 6,300

I 00091 ML

Good

Over: I 91 OVER TH12 /CRL.R.R.

3.0 MI N EXIT 18, Caledonia, VT

Built 1977 Load: 49.9 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER TH12 /CRL.R.R.

3.0 MI N EXIT 18, Caledonia, VT

Built 1977 Load: 49.9 t ADT: 7,100

I 00091 RAMP B

Good

Over: RAMP B OVER I91N&S

I 91 EXIT 19, Caledonia, VT

Built 1982 Load: 49.9 t ADT: 10,000
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.