Structure 4490 · Hartford County, CT

Powder Mill Road over Nepaug River

Carries Powder Mill Road over Nepaug River, 0.3mi N Of Town Bridge RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

60 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 through truss.

Built200026 years old
Length60.0 ft18.3 m
Daily traffic70counted 2024
Last inspectedJune 2024every 24 months

Location

StateConnecticut
CountyHartford
Location0.3mi N Of Town Bridge RD
CarriesPowder Mill Road
CrossesNepaug River
Coordinates41.82844, -72.92984

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length60.0 ft (18.3 m)
Max Span55.1 ft (16.8 m)
Deck Width32.5 ft (9.9 m)
Deck Area181.2 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic70 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number04490

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