Data Set: NAACC (after 6/1/2015)


Survey Id: 102337   Crossing Code: xy4104221273803007  
AOP Coarse Screen: Reduced AOP     NAACC Aquatic Passability Score: 0.78

Data checked and accurate by Megan Lung on 07-02-2024


Non-tidal Aquatic Connectivity Crossing Data
Database Entry By: Megan Lung
Entry Date: 07-01-2024
Coordinator: Megan Lung
Last Updated: 09-10-2024
GPS to Crossing Distance (meters):   89.8
NHD-HUC8 Watershed: Bronx
Crossing Code: xy4104221273803007
Local ID: No data
Date Observed: 07-01-2024
Lead Observer: Nicholas Mead
Town/County: Greenburgh, NY
Stream/River: Manhattan Park Brook
Road: Pondside Drive
Type: Multilane road (>2 lanes)
GPS: Lat: 41.04268, Long: -73.80214
Location Description: Edge of parking lot for Crossroads Shopping Center off of Tarrytown Road. Close to Chipotle
Crossing Type: Culvert
Number of Culverts/Bridge Cells: 1
Flow Condition: Typical low-flow
Crossing Condition: OK
Tidal Site: No
Alignment: Flow-Aligned
Road Fill Height (feet) : 2
Bankfull Width (feet): 15
Bankfull Width Confidence: Low/Estimated
Constriction: Moderate
Tailwater Scour Pool: None
Crossing Comments: No data


Evaluation of this stream crossing is estimated as: MINOR BARRIER

Non-tidal Aquatic Connectivity Structure Data
Total Number of Culverts: 1
This is culvert number 1 for this crossing:
Outlet Openness Ratio: 0.124
Structure Material: Concrete
Outlet Shape: Box Culvert
Outlet Armoring: None
Outlet Grade: At Stream Grade   
Outlet dimensions (feet): A = 10.7; B = 6.1; C= 10.7; D = 0.20 ; E= No data
Outlet drop to water surface (feet): 0.0   
Outlet drop to stream bottom (feet): 0.0   
Structure Length: L = 510.0 Feet


Inlet Openness Ratio: 0.101
Inlet Shape: Pipe Arch/Elliptical Culvert
Inlet Type: Headwall
Inlet Grade: At Stream Grade
Inlet dimensions (feet): A = 11.6; B = 7.2; C = 11.6; D = 1.70

Slope Percent: No data
Slope Confidence: No data
Internal Structures: None
Internal Structures Comment: No data
Structure Substrate Matches Stream: Comparable
Structure Substrate Type: Cobble
Structure Substrate Coverage: 25%
Physical Barriers: None 
Severity: None
Water depth matches that of the stream? No-Shallower
Water velocity matches that of the stream? Yes
Dry passage through structure? No
Height above dry passage: No data
Structure Comments: 93 feet from outlet, shape of structure changes to an elliptical shape

Inlet Shape:
Outlet Shape:

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