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HomeMy WebLinkAbout20190289 Ver 2_U-2581 Site 5 Sediment Loss_Corps_final_20201116Strickland, Bev From: Bailey, David E CIV USARMY CESAW (USA) <David.E.Bailey2@usace.army.mil> Sent: Monday, November 16, 2020 4:08 PM To: Parker, Jerry A Cc: Wanucha, Dave; Snell, William H; Whitley, Kimball; 'dmoore@rkk.com'; Eason, Patty P Subject: U-2581 Site 5 Sediment Loss -Corps -final External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Understood, Jerry. Thanks for the heads up and the effort. -Dave Bailey David E. Bailey, PWS Regulatory Project Manager US Army Corps of Engineers CE-SAW-RG-R 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Phone: (919) 554-4884, Ext. 30. Fax: (919) 562-0421 Email: David. E.Bailey2@usace.army.miI We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is located at: http://corpsmapu.usace.army.mil/cm apex/f?p=136:4:0 Thank you for taking the time to visit this site and complete the survey. From: Parker, Jerry A <jparker@ncdot.gov> Sent: Monday, November 16, 2020 12:08 PM To: Bailey, David E CIV USARMY CESAW (USA) <David.E.Bailey2@usace.army.mil> Cc: Wanucha, Dave <dave.wanucha@ncdenr.gov>; Snell, William H <wsnell@ncdot.gov>; Whitley, Kimball <kwhitley3@ncdot.gov>; 'dmoore@rkk.com'<dmoore@rkk.com>; Eason, Patty P <peason@ncdot.gov> Subject: [Non-DoD Source] RE: [External] RE: U-2581 Site 5 Sediment Loss Thanks, Dave I have spoken with the Resident Engineer and they are going to proceed according to your recommendations (removal of sediment utilizing stiff metal rakes). I will be sure to make note of these recommendations and utilize them in any future occurrences although I hope they will be few and far between. Jerry From: Bailey, David E CIV USARMY CESAW (USA)<David.E.Bailey2@usace.army.mil> Sent: Monday, November 16, 2020 10:53 AM To: Parker, Jerry A <Iparker@ncdot.gov> Cc: Wanucha, Dave <dave.wanucha@ncdenr.gov>; Snell, William H <wsnell@ncdot.gov>; Whitley, Kimball <kwhitley3@ncdot.gov>;'dmoore@rkk.com' <dmoore@rkk.com>; Eason, Patty P <peason@ncdot.gov> Subject: [External] RE: U-2581 Site 5 Sediment Loss External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Hi Jerry, and thanks for your email. My apologies for missing your call on Friday. Just an FYI, my mobile phone's voicemail is not set up so leaving a voicemail on my office phone and/or sending an email as you have done is still best. I am ok with proceeding as you have suggested in this case. However, for future similar issues regarding sediment loading in wetlands, I am generally in favor of removal of sediment from wetlands even if they are vegetated. Specifically, since layers of off -site sediment typically end up killing the above -ground portion of existing herbaceous vegetation anyway, destruction of above -ground herbaceous vegetation during sediment removal is not a serious environmental concern. Further, leaving even an inch of construction sediment in these areas will leave them vulnerable to colonization by invasive species (Microstegium, Chinese privet, etc.). For such cases I would recommend using stiff metal rakes (rather than shovels) and buckets to remove the last inch or so of sediment (although a small amount would certainly be left/incorporated into the native soil). There are certainly instances where the skim layer is so thin that removal isn't worth the disturbance, but the threshold is much thinner for wetlands than streams. In the majority of cases the sediment removal can work around trees and other woody species, with the understanding that existing herbaceous vegetation disturbance is acceptable for the benefit of the long-term function of the wetland. Per usual, the disturbed portion of the wetland should be seeded with a regionally -appropriate wetland/riparian seed mix and mulched once the sediment is removed. Please let me know if you have any questions, and thanks as always for keeping us informed during project construction. -Dave Bailey David E. Bailey, PWS Regulatory Project Manager US Army Corps of Engineers CE-SAW-RG-R 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Phone: (919) 554-4884, Ext. 30. Fax: (919) 562-0421 Email: David.E.Bailey2@usace.army.mil We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is located at: Blockedhttp://corpsmapu.usace.army.miI/cm apex/f?p=136:4:0 Thank you for taking the time to visit this site and complete the survey. From: Parker, Jerry A <jparker@ncdot.gov> Sent: Friday, November 13, 2020 2:19 PM To: Bailey, David E CIV USARMY CESAW (USA)<David.E.Bailey2@usace.army.mil> Cc: Wanucha, Dave <dave.wanucha@ncdenr.gov>; Snell, William H <wsnell@ncdot.gov>; Whitley, Kimball <kwhitley3@ncdot.gov>;'dmoore@rkk.com' <dmoore@rkk.com>; Eason, Patty P <peason@ncdot.gov> Subject: [Non-DoD Source] U-2581 Site 5 Sediment Loss Dave, Site 5 on U-2581 experienced sediment loss to an adjacent wetland after yesterday's 4.5 inch rain event. All of the devices basically held but with that great of an amount of rain the devices and the road overtopped resulting in flooding of the entire work area. I have attached pictures and the permit drawing detailing the location of the impacted area. I estimate that the loss was within an approximately 150 sf area with basically a silt skim of one inch or less. Fortunately, a vegetated barrier exists between the wetland and the stream which likely reduced the amount of sediment entering the stream. Any sediment that did reach the fast moving stream did not deposit nearby and is likely washed far away downstream. After speaking with the Roadside Environmental Engineer, it was decided that we would recommend that the contractor seed and mulch the impacted area with a native seed mix rather than risk impacting the wetland and it's vegetation further by shoveling out the sediment. I tried calling you on your mobile phone but your mailbox was full. However, I did leave you a message on your work phone. Please let me know if you do not agree with our decision or if you would like to add anything to what we have recommended. Thanks. Jerry Parker Environmental Supervisor Division 7 North Carolina Department of Transportation 336 256 2063 office jparker ncdot.gov 1584 YanceyviIIe St. P.O. Box 14996 Greensboro, NC. 27415-4996 Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. 3