Structure 1478 · Hartford County, CT

Route 174 over Amtrak Railroad

Carries Route 174 over Amtrak Railroad, 0.14 Mi E Of New Brit. Tl.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

73 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 multi-beam bridge.

Built1940rebuilt 1987
Length73.2 ft22.3 m
Daily traffic12,100counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateConnecticut
CountyHartford
Location0.14 Mi E Of New Brit. Tl
CarriesRoute 174
CrossesAmtrak Railroad
Coordinates41.67254, -72.75167

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length73.2 ft (22.3 m)
Max Span68.2 ft (20.8 m)
Deck Width43.6 ft (13.3 m)
Deck Area296.6 sq m
Main Spans1
Year Built1940 (reconstructed 1987)

Traffic

Avg Daily Traffic12,100 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01478

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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