Shaver Creek Permitting

Details Existing ~6’ squash pipe Bankfull ~14 ft Watershed area ~840 acres ~5% stream slope, ~3% pipe slope Permit required?? Requires GP-11 Downstream scour pool Upstream sediment wedge

Initial Survey (May 2018) Detailed engineering survey ~400’ downstream and 400’ upstream Wetlands delineation completed

Structure Selection Where will you do the work?? How to reconnect the stream bed? Cover height? Slope? Sour depth? Bottom? No bottom? Span ~15’ Buried 3 ft

Span ~15’ Buried 3 ft

Upstream Work

Log Cross Vane

Other Documentation

Then… Submitted November 13, 2018 First DEP response February 25, 2019

DEP Response

Incomplete Elements (13) Provide color photographs and a map depicting the proposed activity areas. Provide a cross section of the proposed culvert depicting the existing and proposed conditions, stream bed, normal water surface, and culverts. Provide plans and details for the proposed culvert depicting the size, opening, footers, bottom. Revise the arch culvert design to include construction of a normal and low flow channel through the structure which does not over­widen the stream channel. Provide a wetland determination and delineation report with data sheets.

Incomplete Elements Other elements??? Provide a project description which identifies and describes the purpose of the proposed channel changes upstream and downstream, how these changes affect the overall stream channel stability and slope, and why this is appropriate and stable for the stream channel. Identify and provide specific details on the material placed in the downstream channel elevation increase to raise the stream bed. Provide measures to ensure that the stream bed downstream of the culvert does not scour and erode. Other elements???

Then… Revisions Submitted March 4, 2019 DEP Approval March 20, 2019

Permit approval

Permit Waivers Watersheds <100 acres No wetlands involved Still must follow all GP provisions and do E&S ~60 acre watershed

Want a Waiver Letter? Filled out GP registration and signature page PNDI – environmental review Existing Conditions survey Wetlands delineation Watershed delineation and area Photos – upstream and downstream

Questions?