Structure 3364460 · Suffolk County, NY

Cross River DR over Peconic River

Carries Cross River DR over Peconic River, 2 Mi E Of Riverhead.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT738 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

738 ft end to end, longest span 102 ft: about 2.0 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.

Built197551 years old
Length737.9 ft224.9 m
Daily traffic25,454counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateNew York
CountySuffolk
Location2 Mi E Of Riverhead
CarriesCross River DR
CrossesPeconic River
Coordinates40.91819, -72.63861

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length737.9 ft (224.9 m)
Max Span101.7 ft (31 m)
Deck Width63.0 ft (19.2 m)
Deck Area4318.1 sq m
Main Spans7
Year Built1975

Traffic

Avg Daily Traffic25,454 (2020)
Truck Traffic6%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000003364460

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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