Structure 4517 · Hartford County, CT

Silver Street over East Branch Salmon Brook

Carries Silver Street over East Branch Salmon Brook, 40 North Of Route 189.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

81 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.

Built201313 years old
Length81.0 ft24.7 m
Daily traffic617counted 2023
Last inspectedNovember 2023every 24 months

Location

StateConnecticut
CountyHartford
Location40 North Of Route 189
CarriesSilver Street
CrossesEast Branch Salmon Brook
Coordinates42.00143, -72.83418

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length81.0 ft (24.7 m)
Max Span78.1 ft (23.8 m)
Deck Width27.9 ft (8.5 m)
Deck Area209.9 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic617 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number04517

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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