Structure 101418B08314181 · Windsor County, VT

Nh 11 over Connecticut River

Carries Nh 11 over Connecticut River, Nh Vt State Line.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT500 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

500 ft end to end, longest span 165 ft: about 7 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a through truss.

Built1900rebuilt 2016
Length500.0 ft152.4 m
Daily traffic6,958counted 2021
Last inspectedOctober 2024every 24 months

Location

StateVermont
CountyWindsor
LocationNh Vt State Line
CarriesNh 11
CrossesConnecticut River
Coordinates43.26041, -72.42721

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length500.0 ft (152.4 m)
Max Span165.0 ft (50.3 m)
Deck Width22.0 ft (6.7 m)
Deck Area1021.1 sq m
Main Spans3
Year Built1900 (reconstructed 2016)

Traffic

Avg Daily Traffic6,958 (2021)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number101418B08314181

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges