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


Survey Id: 101660   Crossing Code: xy4103973973690212  
AOP Coarse Screen: Full AOP     NAACC Aquatic Passability Score: 0.78

Data checked and accurate by Megan Lung on 06-07-2024


Non-tidal Aquatic Connectivity Crossing Data
Database Entry By: Megan Lung
Entry Date: 05-31-2024
Coordinator: Megan Lung
Last Updated: 06-07-2024
GPS to Crossing Distance (meters):   18.0
NHD-HUC8 Watershed: Saugatuck
Crossing Code: xy4103973973690212
Local ID: No data
Date Observed: 05-31-2024
Lead Observer: Sarah Thong
Town/County: Harrison, NY
Stream/River: Blind Brook
Road: Anderson Hill Road
Type: Paved
GPS: Lat: 41.03987, Long: -73.69034
Location Description: Main stem by golf course entrance 880 Anderson Hill road
Crossing Type: Bridge
Number of Culverts/Bridge Cells: 1
Flow Condition: Typical low-flow
Crossing Condition: OK
Tidal Site: No
Alignment: Flow-Aligned
Road Fill Height (feet) : 4.3
Bankfull Width (feet): 26.8
Bankfull Width Confidence: Low/Estimated
Constriction: Moderate
Tailwater Scour Pool: Large
Crossing Comments: Id: 3358610, undercutting on upstream banks. Fish present. Sewer line at outlet 12 ft from structure


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: 2.856
Structure Material: Concrete
Outlet Shape: Box/Bridge with Abutments
Outlet Armoring: None
Outlet Grade: At Stream Grade   
Outlet dimensions (feet): A = 20.1; B = 10.8; C= 20.1; D = 3.10 ; E= No data
Outlet drop to water surface (feet): 0.0   
Outlet drop to stream bottom (feet): 0.0   
Structure Length: L = 54.2 Feet


Inlet Openness Ratio: 2.609
Inlet Shape: Bridge with Side Slopes
Inlet Type: Headwall
Inlet Grade: At Stream Grade
Inlet dimensions (feet): A = 20.2; B = 8.8; C = 20.2; D = 1.80

Slope Percent: No data
Slope Confidence: No data
Internal Structures: Other
Internal Structures Comment: 3 drainage pipes
Structure Substrate Matches Stream: Contrasting
Structure Substrate Type: Boulder
Structure Substrate Coverage: 100%
Physical Barriers: None 
Severity: None
Water depth matches that of the stream? No-Deeper
Water velocity matches that of the stream? No-Slower
Dry passage through structure? No
Height above dry passage: No data
Structure Comments: No data

Inlet Shape:
Outlet Shape:

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