Structure 1064570 · Suffolk County, NY

RTE 906b over CR 97 CR 97

Carries RTE 906b over CR 97 CR 97, 3 Mi W Jct I495 & SH 112.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT211 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 6/9

211 ft end to end, longest span 72 ft: about 3 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.

Built197056 years old
Length211.0 ft64.3 m
Daily traffic23,518counted 2021
Last inspectedJuly 2023every 24 months

Location

StateNew York
CountySuffolk
Location3 Mi W Jct I495 & SH 112
CarriesRTE 906b
CrossesCR 97 CR 97
Coordinates40.82038, -73.05438

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length211.0 ft (64.3 m)
Max Span71.9 ft (21.9 m)
Deck Width43.3 ft (13.2 m)
Deck Area848.8 sq m
Main Spans4
Year Built1970

Traffic

Avg Daily Traffic23,518 (2021)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001064570

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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