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Home My WebLink About20110296 Ver 1_Email_20081008�Izo i0ZIG Ridings, Rob From Montague Heather W Sent Tuesday July 03 2012 8 58 AM To Ridings Rob Subject RE B 4514 proposed barges vs temporary rock workpad Rob The contractor is absolutely aware of this 401 condition about barges and we 11 remind them again This language was added to the 04/06/11 approval as condition # 7 for this project Additionally we will print your email and approval from Eric (when received) and add them both to the original permits within the fob box Thanks Heather - Original Message -- From Ridings, Rob Sent Tuesday, July 03, 2012 8 43 AM To Montague, Heather W, Alsmeyer, Eric C SAW (Eric C Alsmeyer @usace army mil) Cc Shapiro, Alan W, Tharrington, Emmette B, Murray, Christopher A, Phipps, Dawn, Bennett, Ransom B, Wayne Whiting @uc uig net Subject RE B 4514 proposed barges vs temporary rock workpad Heather J I do not think that I need to do an actual modification (if Eric agrees), since you re actually decreasing the amount of impact For these reasons, I often actually like the use of barges However With Barges, there is one Additional Condition we put on3the 401 Consider this your notification that it would now be Required * * ** If work conditions require barges, they shall be floated into position and then sunk The barges shall not be sunk and then dragged into position Under no circumstances should barges be dragged along the bottom of the surface water * * ** Granted, your email says they will be lowered with a crane instead of floated, which is totally fine too The point is to make sure they are never dragged along the bottom of the river, which is a violation of water quality standards If you can print that out and attach to all the copies of the permit that are now onsite and make sure that those using the barges understand the condition, then I am fine with this email change and do not need to do a formal modification Let me know if you have questions, concerns, comments, etc Thanks, Rob Ridings Transportation Permitting Unit (DOT Divisions 4 5), Wetlands & Stormwater Branch, NC Division of Water Quality 919 807 6403 1650 Mail Service Center, Raleigh, NC 27699 rob ridings @ncdenr gov - -- Original Message From Montague, Heather W Sent Monday, July 02, 2012 2 52 PM To Ridings, Rob, Alsmeyer, Eric C SAW (Eric C Alsmeyer@usace army mil) Cc Shapiro, Alan W, Tharrington, Emmette B, Murray, Christopher A, Phipps, Dawn, Bennett, Ransom B, Wayne Whiting @uc uig net Subject B -4514 proposed barges vs temporary rock workpad Reference DWQ Project No 20110296 (issued 04/06/11, WQC and Tar Pamlico Buffer Authorization) USACE Action ID 2006 40802 (issued 04/15/11, NWP 3, 23, and 13) Rob and Eric- Bridge replacement work is currently underway for Bridge No 36 over the Tar River on SR 1003 (Sims Bridge Road) in Franklin County, within the Tar Pamlico River Basin WBS No 33739 3 1, TIP B -4514 Drill work on Interior Bent 1 (along top of bank on the south side of the river) is complete Drill work on Interior Bent 2 (within the river along the north bank) is scheduled to start very soon The NCDOT had previously provided a construction scenario that involved installation of temporary rock workpad in the Tar River on the north bank This temporary rock workpad was necessary to aid in demolition, drill operations, and setting the beams However the contractor for the project has proposed the use of two barges instead of this rock workpad These barges are 10ft x 40ft structures (see attached photo) Attached is a sketch of the barge locations for the drilled shaft setup on Interior Bent 2 The barges should be within the footprint of the causeway and would be swung into place using a crane Also, the barges will not be required to be spudded due to the weight of the barges and the equipment loading the barges The sketch shows the setup for one shaft Only the steel mats will have to be shifted to the next shaft Barges should remain in place until both shafts are complete Eventually it will be determined where the barges will need to be located to complete demo as well as the beam installation That information will be submitted to you soon for approval but first to facilitate the drill operation on the north bank - we need approval of the barge proposal shown in the attached sketch This proposed revision does differ from the method previously proposed by the Department and will change the depiction /footprint of the temporary fill in stream impact However, this does reduce the amount of temporary fill in the river and does eliminate the need for placement (and removal) of Class II rip rap in the river, which reduces the overall impact to the streambed Note that this project does not involve a Biological Assessment nor Biological Opinion, so USFWS approval for this revision isn t required Would this current proposal be covered under the existing permits or would formal permit modifications be necessary from the NCDWQ or USACE, please advise? 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