Structure 2267360 · Rensselaer County, NY

Knickerbocker RD over Csx Trans/c P Rwy

Carries Knickerbocker RD over Csx Trans/c P Rwy, 1.5mi N Schodack Landing.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT235 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

235 ft end to end, longest span 82 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.

Built1924rebuilt 2005
Length234.9 ft71.6 m
Daily traffic109counted 2018
Last inspectedSeptember 2023every 24 months

Location

StateNew York
CountyRensselaer
Location1.5mi N Schodack Landing
CarriesKnickerbocker RD
CrossesCsx Trans/c P Rwy
Coordinates42.49660, -73.75814

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length234.9 ft (71.6 m)
Max Span81.7 ft (24.9 m)
Deck Width28.2 ft (8.6 m)
Deck Area615.8 sq m
Main Spans3
Year Built1924 (reconstructed 2005)

Traffic

Avg Daily Traffic109 (2018)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000002267360

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.

Nearby Bridges