20110827 Ver 1_Staff Comments_20120409

Strickland, Bev
From: Steenhuis, Joanne
Sent: Friday, April 13, 2012 11:08 AM
To: Strickland, Bev
Subject: FW: Topsail Beach Nourishment Project DWQ # 11 0827
- - - -- Original Message---- -
From: Steenhuis, Joanne
Sent: Monday, April 09, 2012 11:16 AM
To: 'Timpy, David L SAW', Gibson, Chris, Dail, Jason
Cc: Pratt, Jamie
Subject: RE: Topsail Beach Nourishment Project
I agree -with Dare.
- - - -- Original Message---- -
From: Timpy, David L SAW [mailto: David. L.Timp a'usace.army.mill
Sent: Monday, April 09, 2012 10:57 AM
To: Gibson, Chris, Dail, Jason
Cc: Pratt, Jamie, Steenhuis, Joanne
Subject: RE: Topsail Beach Nourishment Project
Chris,
As long as they place material within the authorized project boundaries, I'm OK with it.
I plan to visit the project sometime this -week. Jason/Joanne -- Let me kno-w if you are have plans for a site visit this -week
Dare
- - - -- Original Message---- -
From: Gibson, Chris [mailto:claibsonc %aba- ina.com]
Sent: Monday, April 09, 2012 9:00 AM
To: Dail, Jason (jason.dail a'mcdenr.Qoi) Timpy, David L SAW
Cc: Pratt, Jamie
Subject: Topsail Beach Nourishment Project
Gentlemen,
I hope you had a happy Easter. Everything is going very well at Topsail Beach. Dredge production is good and the material is
excellent. The material has been coarse (for this area) -with virtually no shell or silt. The turbidity plume is less than 50' in
diameter.
When -we designed the fill, -we based the fill area and template on 80% retainage -within the template. Ho- ever, South-wind has
been running about 98% retainage on the beach and -we are approaching the north limit of the planned placement area early. We
had designed for the Banks Channel Cut and the Connector Channel (USACE dock to Topsail Creek) to be placed north of

Queen's Grant with the Inlet Cut and Topsail Creek being placed south of Queen's Grant. We would like to continue heading
north toward the to- n limit until Nve run out of material in the Connector Channel. If Nve don't go further north, Nve NN-111 likely-
run out of space to the south before -,ve clear the channels. It -would be better to place the sand to the north as it -will not be
economicall-v feasible to nourish this small area next rear.
Please let me know if there are any concerns -with this plan.
Chris Gibson, PE
Vice President
Gahagan & Bra -ant Associates of NC
295 -A North Green Meadows Dri�-e
Wilmington, NC 28405
Office 910- 313 -3338
Cell 910 -279 -4777
claibson'dgba- ina.com <mailto:claibson c %aba- ina.com>