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.

All 247 Good 131 Fair 112 Poor 4

All bridges (247)

I 00091 ML

Fair

Over: I 91 OVER US 5

I 91 EXIT 23, Caledonia, VT

Built 1974 Load: 60.8 t ADT: 11,900

I 00091 ML

Fair

Over: I 91 OVER BARNET SH

I 91 EXIT 18, Caledonia, VT

Built 1976 Load: 61.7 t ADT: 5,800

I 00091 SB ML

Fair

Over: I 91SB OVER RAMP D

I 91 EXIT 19, Caledonia, VT

Built 1978 Load: 61.7 t ADT: 10,000

I 00091 ML

Fair

Over: I 91 OVER US 5

I 91 EXIT 23, Caledonia, VT

Built 1974 Load: 61.7 t ADT: 11,900

US 00002 ML

Fair

Over: JOES BROOK

0.1 MI W JCT VT.15, Caledonia, VT

Built 1934 Load: 62.6 t ADT: 4,300

C3044

Fair

Over: NATION BROOK

0.05 MI JCT TH 44 +VT122, Caledonia, VT

Built 1974 Load: 63.5 t ADT: 10

I 00091 ML

Fair

Over: I 91 OVER US 5

0.6 MI N EXIT 18, Caledonia, VT

Built 1977 Load: 64.4 t ADT: 7,100

I 00093 ML

Fair

Over: I 93 OVER TH NO 7

1.1 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 69.9 t ADT: 6,200

US 00005 ML

Fair

Over: US 5 OVER I 91 SB

1.9 MI N JCT BARNET SH, Caledonia, VT

Built 1978 Load: 72.6 t ADT: 750

I 00093 ML

Fair

Over: I 93 OVER TH NO 12

2.9 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 75.3 t ADT: 6,200

I 00093 ML

Fair

Over: I 93 OVER TH NO 12

2.9 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 75.3 t ADT: 6,200

I 00091 ML

Fair

Over: I91 OVERTH77/PR/CRL R.R.

0.2 MI S EXIT 20, Caledonia, VT

Built 1978 Load: 79.8 t ADT: 10,000

C3026

Good

Over: MILLER RUN

0.1 MI TO JCT W VT122, Caledonia, VT

Built 1930 Load: 8.2 t ADT: 150

C2002

Good

Over: PEACHAM HOLLOW BROOK

0.15 MI TO JCT W C3 TH61, Caledonia, VT

Built 1949 Load: 9.1 t ADT: 400

C3013

Good

Over: ROUNDY BROOK

0.5 MI JCT TH 13 + TH 29, Caledonia, VT

Built 1928 Load: 11.8 t ADT: 100

C3048

Good

Over: PEACHAM HOLLOW BROOK

0.1 MI TO JCT W CL2 TH1, Caledonia, VT

Built 1919 Load: 16.3 t ADT: 150

C3045

Good

Over: HAWKINS BROOK

0.1 MI TO JCT W CL2 TH2, Caledonia, VT

Built 1928 Load: 16.3 t ADT: 100

C3046

Good

Over: SOUTH WHEELOCK BRANCH

0.05 MI JCT TH 1 + TH 52, Caledonia, VT

Built 1919 Load: 16.3 t ADT: 250

TR 03 FAS 215

Good

Over: JOES BROOK

2.1 MI S JCT. U.S.2 W, Caledonia, VT

Built 1929 Load: 20.0 t ADT: 1,200

C4078

Good

Over: WATER ANDRIC

2.2 MI SE US2 + TH60, Caledonia, VT

Built 2017 Load: 20.9 t ADT: 25

VT 00122 ML

Good

Over: MILLER RUN

7.7 MI W JCT US.5, Caledonia, VT

Built 1928 Load: 21.8 t ADT: 490

C3006

Good

Over: STANNARD BROOK

AT JCT TH 6 + TH 4, Caledonia, VT

Built 1963 Load: 22.7 t ADT: 150

C3045

Good

Over: SO. WHEELOCK BRANCH

0.05 MI TO JCT W CL2 TH1, Caledonia, VT

Built 1983 Load: 22.7 t ADT: 10

VT 0005A ALT

Good

Over: BROOK

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

Built 1956 Load: 22.7 t ADT: 870

C3031

Good

Over: MILLER RUN

0.04 MI TO JCT W C3 TH96, Caledonia, VT

Built 1919 Load: 24.5 t ADT: 200

C3032

Good

Over: MILLER RUN

0.05 MI JCT TH 32 +VT122, Caledonia, VT

Built 1919 Load: 24.5 t ADT: 350

TR 00TH4

Good

Over: TH NO 4 OVER I 91

0.7 MI N EXIT 21, Caledonia, VT

Built 1975 Load: 29.9 t ADT: 120

C3032

Good

Over: MILLER RUN

AT JCT WITH TH 32 +TH 33, Caledonia, VT

Built 1982 Load: 31.8 t ADT: 50

I-93 SB

Good

Over: CONNECTICUT RIVER

VERMONT STATE LINE, Caledonia, VT

Built 1981 Load: 32.2 t ADT: 2,679

C3017

Good

Over: WELLS RIVER

0.05 MI JCT TH 17 +US302, Caledonia, VT

Built 1965 Load: 32.7 t ADT: 50

C3015

Good

Over: BROOK

0.15 MI TO JCT W TH8, Caledonia, VT

Built 2015 Load: 32.7 t ADT: 150

C2001

Good

Over: SO WHEELOCK BRANCH

0.05 MI JCT TH 1 + US 5, Caledonia, VT

Built 1973 Load: 32.7 t ADT: 860

C3PLE

Good

Over: SCOTT BROOK

@ JCT W CL2 TH2, Caledonia, VT

Built 1991 Load: 32.7 t ADT: 250

US 00002 ML

Good

Over: SLEEPER RIVER

0.7 MI N JCT VT 2B W, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 7,400

I 00091 ML

Good

Over: STEVENS RIVER

0.2 MI N EXIT 18, Caledonia, VT

Built 1976 Load: 32.7 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER LV RR

3.4 MI N EXIT 20, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 8,800

I 00091 ML

Good

Over: SLEEPERS RIVER

0.2 MI S EXIT 21, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 8,800

I 00091 ML

Good

Over: S. WHEELOCK BR PASM R

0.1 MI N EXIT 23 I 91, Caledonia, VT

Built 1972 Load: 32.7 t ADT: 6,500

I 00091 ML

Good

Over: I 91 OVER TH 57

0.3 MI N EXIT 18, Caledonia, VT

Built 1977 Load: 32.7 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER TH 57

0.3 MI N EXIT 18, Caledonia, VT

Built 1977 Load: 32.7 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER TH NO 38

2.2 MI S EXIT 20, Caledonia, VT

Built 1978 Load: 32.7 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER TH NO 11

2.2 MI S EXIT 20, Caledonia, VT

Built 1978 Load: 32.7 t ADT: 7,100

I 00091 ML

Good

Over: I 91 OVER TH NO 17

3.5 MI N EXIT 24 I 91, Caledonia, VT

Built 1972 Load: 32.7 t ADT: 4,800

I 00091 ML

Good

Over: I 91 OVER TH NO. 17

3.5 MI N EXIT 24 I 91, Caledonia, VT

Built 1972 Load: 32.7 t ADT: 4,800

I 00091 RAMP

Good

Over: RAMPB OVER SLEEPERS R

I 91 EXIT 21 RAMP B, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 8,800

I 00091 RAMP

Good

Over: RAMPC OVER SLEEPERS R

I 91 EXIT 21 RAMP C, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 8,800

I 00091 RAMP

Good

Over: RAMP E OVER SLEEPERS R

I 91 EXIT 21 RAMP E, Caledonia, VT

Built 1975 Load: 32.7 t ADT: 8,800

I 00093 ML

Good

Over: I 93 OVER TH NO 17

6.0 MI S EXIT 1, Caledonia, VT

Built 1982 Load: 32.7 t ADT: 6,200

I 00093 RAMP

Good

Over: RAMP C OVER STILES BROOK

I 93 EXIT 1 RAMP C, Caledonia, VT

Built 1982 Load: 32.7 t ADT: 6,900

I-93 NB

Good

Over: CONNECTICUT RIVER

@VERMONT STATE LINE, Caledonia, VT

Built 1976 Load: 32.7 t ADT: 2,668

Read our methodology - how this data is sourced, computed, and verified.

Related

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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.