Structure 100215001102151 · Bennington County, VT

C4004 over Mill Brook

Carries C4004 over Mill Brook, Jct TH 4 & TH 8.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

29 ft end to end. Lengths and the car 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 slab bridge.

Built1961rebuilt 2018
Length28.9 ft8.8 m
Daily traffic50counted 2019
Last inspectedSeptember 2024every 24 months

Location

StateVermont
CountyBennington
LocationJct TH 4 & TH 8
CarriesC4004
CrossesMill Brook
Coordinates43.11151, -73.10259

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length28.9 ft (8.8 m)
Max Span27.9 ft (8.5 m)
Deck Width16.7 ft (5.1 m)
Deck Area44.9 sq m
Main Spans1
Year Built1961 (reconstructed 2018)

Traffic

Avg Daily Traffic50 (2019)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100215001102151

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.

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