Total bridges
66
Public highway bridges in Essex County
County profile · official public datasets
66 public highway bridges tracked in the FHWA National Bridge Inventory: 57.6% rated Good, 39.4% Fair, 3% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Essex County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Essex County ranks #10 of 14 Vermont counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3%). Essex County, Vermont contains 66 public highway bridges. Roughly 57.6% are rated “Good,” 39.4% “Fair,” and 3% “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
66
Public highway bridges in Essex County
Good condition
57.6%
38 of 66 rated 7-9
Fair condition
39.4%
26 of 66 rated 5-6
Poor condition
3%
2 of 66 rated 4 or below
In-state Poor-share rank
#10 of 14
Among Vermont counties with 5+ bridges, lower share ranks better
Share of 66 NBI-tracked bridges by lowest applicable component rating.
That is 1.8% of the county's reported daily bridge traffic on 3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 345 crossings a day against 678 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 66 of 66 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
37 of the 66 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 57.6% 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.
VT 00102 ML over NULHEGAN RIVER, built 1937, carries 470 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 2-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 690 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
66 bridges with a recorded construction year, grouped by decade
Built before 1900
1 bridges
1910–1919
5 bridges
1920–1929
5 bridges
1930–1939
8 bridges
1940–1949
4 bridges
1950–1959
3 bridges
1960–1969
6 bridges
1970–1979
9 bridges
1980–1989
10 bridges
1990–1999
4 bridges
2000–2009
5 bridges
2010–2019
5 bridges
2020–2029
1 bridges
What this shows Construction peaked in the 1980s, when 10 of the county's bridges still in the inventory were built, which is 15.2% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1965) matches the Vermont average (1964).
The 5 Vermont counties nearest Essex County in number of bridges, with their condition splits. Its 3% Poor share is the 5th-lowest of these 6. Its average build year of 1965 against a peer-group mean of 1968 is in line with the group.
Showing the 5 closest of 13 Vermont counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Orleans County | 181 | 52.5% | 44.8% | 2.8% | 1971 |
| Franklin County | 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 |
| Essex County (this page) | 66 | 57.6% | 39.4% | 3% | 1965 |
| Grand Isle County | 8 | 62.5% | 37.5% | 0% | 1979 |
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 Essex County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Essex County, both outside Vermont so the neighborhoods are not the same-state size table above.
Nearest county inventories outside VT (66 bridges here).
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.
Over: CONNECTICUT RIVER
VERMONT STATE LINE, Essex, VT
Over: CONNECTICUT RIVER
AT VERMONT STATE LINE, Essex, VT
Over: E. BR. PASSUMPSIC RIVER
0.1 MI JCT TH 1 + VT 114, Essex, VT
Over: E. BR. PASSUMPSIC RIVER
0.1 MI JCT TH 4 + VT 114, Essex, VT
Over: SCALES BROOK
0.37 MI E OREGON ROAD, Essex, VT
Over: MOOSE RIVER
0.05 MI JCT TH 2 + TH 1, Essex, VT
Over: COATICOOK RIVER
0.4 MI TO JCT W VT114, Essex, VT
Over: CUTLER MILL BROOK
0.5 MI JCT TH 4 + TH 5, Essex, VT
Over: KIRBY BROOK
6.3 MI E JCT VT.18, Essex, VT
Over: MOOSE RIVER
1.2 MI N JCT U.S.2, Essex, VT
Over: MOOSE RIVER
0.07 MI TO JCT W US2, Essex, VT
Over: COATICOOK RIVER
0.01 MI TO JCT W CL3 TH9, Essex, VT
Over: PHERRINS RIVER
1.2 MI N JCT. VT.105 E, Essex, VT
Over: MILES STREAM
0.1 MI JCT TH 58 + TH 4, Essex, VT
Over: HALLS STREAM
0.15 MI TO JCT W VT25, Essex, VT
Over: CONNECTICUT RIVER
VERMONT STATE LINE, Essex, VT
Over: MOOSE RIVER
0.1 MI TO JCT W US2, Essex, VT
Over: CLYDE RIVER
0.02 MI TO JCT W VT105, Essex, VT
Over: MILES STREAM
0.7 MI S JCT TH 4, Essex, VT
Over: CONNECTICUT RIVER
VERMONT STATE LINE, Essex, VT
Over: NULHEGAN RIVER
7.6 MI W JCT. VT.102, Essex, VT
Over: MINK BROOK
2.7 MI S JCT. U.S.2, Essex, VT
Over: CONNECTICUT RIVER
VERMONT STATE LINE, Essex, VT
Over: STLAWRENCE ATLANTIC RR
0.07 MI TO JCT W VT105, Essex, VT
Over: EAST BR NULHEGAN RIVER
2.4 MI W JCT. VT.102, Essex, VT
Over: LEACH CREEK
0.4 MI S JCT. VT.114, Essex, VT
Read our methodology - how this data is sourced, computed, and verified.
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.