Structure 4364 · Fairfield County, CT

Route 25 SB over Route 15 & Tr 806

Carries Route 25 SB over Route 15 & Tr 806, 1.4 Mi N Of Route 8.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT165 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

165 ft end to end: about 2 semi-trucks nose to tail. 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.

Built198145 years old
Length165.0 ft50.3 m
Daily traffic13,100counted 2021
Last inspectedApril 2024every 24 months

Location

StateConnecticut
CountyFairfield
Location1.4 Mi N Of Route 8
CarriesRoute 25 SB
CrossesRoute 15 & Tr 806
Coordinates41.23562, -73.19084

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length165.0 ft (50.3 m)
Max Span159.1 ft (48.5 m)
Deck Width73.8 ft (22.5 m)
Deck Area1131.8 sq m
Main Spans1
Year Built1981

Traffic

Avg Daily Traffic13,100 (2021)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number04364

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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