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


Survey Id: 98709   Crossing Code: xy4065123375033999  
AOP Coarse Screen: No AOP     NAACC Aquatic Passability Score: 0.04

Data checked and accurate by David Hsu on 10-26-2023


Non-tidal Aquatic Connectivity Crossing Data
Database Entry By: Adam Bunger
Entry Date: 10-03-2023
Coordinator: Adam Bunger
Last Updated: 10-03-2023
GPS to Crossing Distance (meters):   59.3
NHD-HUC8 Watershed: Middle Delaware-Musconetcong
Crossing Code: xy4065123375033999
Local ID: No data
Date Observed: 07-31-2023
Lead Observer: Adam Bunger
Town/County: Bethlehem Township, NJ
Stream/River: West Portal Creek
Road: I-78 and Tunnel Rd
Type: Multilane road (>2 lanes)
GPS: Lat: 40.65105, Long: -75.03334
Location Description: Bushwack down to streamway from NW side of Tunel Rd past overpass
Crossing Type: Culvert
Number of Culverts/Bridge Cells: 1
Flow Condition: Typical low-flow
Crossing Condition: OK
Tidal Site: No
Alignment: Skewed (>45°)
Road Fill Height (feet) : 100
Bankfull Width (feet): No data
Bankfull Width Confidence: No data
Constriction: Moderate
Tailwater Scour Pool: Large
Crossing Comments: Crossing runs below Tunnel Rd., paved, and I-78, multilane. Road fill height estimated.


Evaluation of this stream crossing is estimated as: SEVERE BARRIER

Non-tidal Aquatic Connectivity Structure Data
Total Number of Culverts: 1
This is culvert number 1 for this crossing:
Outlet Openness Ratio: 0.036
Structure Material: Concrete
Outlet Shape: Pipe Arch/Elliptical Culvert
Outlet Armoring: Not Extensive
Outlet Grade: Free Fall Onto Cascade   
Outlet dimensions (feet): A = 12.1; B = 16.0; C= 2.0; D = 1.20 ; E= No data
Outlet drop to water surface (feet): 1.9   
Outlet drop to stream bottom (feet): 2.8   
Structure Length: L = 450.0 Feet


Inlet Openness Ratio: 0.043
Inlet Shape: Pipe Arch/Elliptical Culvert
Inlet Type: Headwall and Wingwalls
Inlet Grade: Perched
Inlet dimensions (feet): A = 12.2; B = 15.4; C = 2.5; D = 0.10

Slope Percent: No data
Slope Confidence: No data
Internal Structures: None
Internal Structures Comment: No data
Structure Substrate Matches Stream: None
Structure Substrate Type: None
Structure Substrate Coverage: None
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? Yes
Height above dry passage: 14.3  Feet
Structure Comments: No data

Inlet Shape:
Outlet Shape:

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