Display NAACC Non-tidal Aquatic Connectivity (after 6/1/2015) Data

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: