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HomeMy WebLinkAbout20161268 Ver 1_R-3300 Geotech Surveys_20171205Carpenter,Kristi From: Shaver, Brad E CIV USARMY CESAW (US) <Brad.E.Shaver@usace.army.mil> Sent: Tuesday, December 05, 2017 1:04 PM To: Herndon, T. Mason; Steenhuis, Joanne Subject: [External] RE: R-3300 Geotech Surveys CAUTION: External email. Do not click links or open attachments unless verified. Send all suspicious email as an attachment to report.spam@nc.gov. Mason, I'm heading in the filed in a few minutes so I thought I better respond before I leave. Below is language taken from the Falcon proposal: " We anticipate truck, ATV, or rubber track mounted drill rigs equipped with hollow stem augers and an automatic hammer will be able to access the majority of boring locations. However, many portions of the site are wooded and will require extensive clearing for access. Selective clearing will be performed with a rotating drum hydraulic mulcher ("hydroaxe") and/or by hand with chain saws. Clearing will generally be performed along the path of easiest access, attempting to roughly follow proposed alignments, and will be limited to the minimum extent necessary to afford safe passage and working areas for our drill crews. However, where existing trails come within close proximity to the proposed boring locations, clearing may be performed from the pathway to the boring approximately perpendicular to the alignment. Borings in wetland areas are anticipated to be accessed using a non-amphibious (i.e. not floating) track mounted rig that can operate in approximately 2-3 feet of water. If an amphibious "marsh buggy" type rig is required for any borings, additional fees will be required. Upon obtaining actual bridge envelopes and performing field stake-outs, we will notify you if any borings are likely to require a marsh buggy rig. ' The only think here that makes me nervous is when they state extensive clearing will take place to drill test auger holes. Now the very next sentence states selective clearing which I believe is the intent of the nationwide. Lastly, it says that tracked vehicles (not floating) would be used in wetlands with up to 2-3 feet of waters. The intent of this permit is to have pre-existing conditions upon completion and I question how this could happen without having to possibly fill in ruts using such heavy equipment in soft soils. Mats would resolve this issue but it seems like they may charge you more money for any modifications. Original elevations should be restored at the end of the project. This permit is not intended to have permanent impacts. Understanding our expectations of how this permit works I do agree it fits the need and would not require prior notice. Brad P.S. A heads up reminder I am planning on going through the Wilmington ByPass tomorrow with a crowd of folks from my office. Please advise if I need to alert anyone else. Also will I be able to drive all the way through the project or not? -----Original Message----- From: Herndon, T. Mason [mailto:tmherndon@ncdot.gov] Sent: Monday, December 4, 2017 9:26 AM To: Shaver, Brad E CIV USARMY CESAW (US) <Brad.E.Shaver@usace.army.mil>; Steenhuis, Joanne <joanne.steenhuis@ncdenr.gov> Subject: [EXTERNAL] R-3300 Geotech Surveys The Division's consultant for R-3300 (Stantec) is setting up contracts with Falcon Engineering and Catlin Engineering to begin boring and soundings at proposed structures and along the -L- of R-3300 A and B. Attached is the proposals/estimates for the Structure Borings on A& B and borings/soundings along the -L- of the A section. The borings/soundings on the B alignment will be done a little later so we do not have an estimate or numbers for this section yet, but the proposed locations are shown on the maps that I'm sending to you separately via FTS. We are proposing to proceed with this work under Nationwide 6 and WQC 4085 and the permits and their conditions will be included in the contract package. Please review the attached information and confirm that this work can be completed under the conditions of these permits and does not require written approval from you agency. If you have any questions or require any additional information please do not hesitate to contact me. Mason Herndon Environmental Program Supervisor Division 3 NCDOT- Division of Highways 910-341-2036 office 910-604-0050 mobile tmherndon@ncdot.gov 5501 Barbados Blvd Castle Hayne, NC 28429 Email correspondence to and from this address is subject to the North Carolina 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.