Structure 3402B · Hartford County, CT

SR 503 Westbound over Forest ST & Parking Lot

Carries SR 503 Westbound over Forest ST & Parking Lot, .23mi E Of Jct Sisson AVE.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT756 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

756 ft end to end, longest span 90 ft: about 2.1 football fields. 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 multi-beam bridge.

Built1969rebuilt 1983
Length756.2 ft230.5 m
Daily traffic9,100counted 2021
Last inspectedOctober 2023every 24 months

Location

StateConnecticut
CountyHartford
Location.23mi E Of Jct Sisson AVE
CarriesSR 503 Westbound
CrossesForest ST & Parking Lot
Coordinates41.76272, -72.70163

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length756.2 ft (230.5 m)
Max Span89.9 ft (27.4 m)
Deck Width27.6 ft (8.4 m)
Deck Area1936.2 sq m
Main Spans10
Year Built1969 (reconstructed 1983)

Traffic

Avg Daily Traffic9,100 (2021)
Truck Traffic8%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number03402B

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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