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HomeMy WebLinkAbout20100752 Ver 4_Stormwater Site Plans_20170214 Wanucha, Dave From:Slaughter, Johnathan H Sent:Tuesday, February 14, 2017 9:12 AM To:Chambers, Marla J; Eller, Douglas W; Shown, Marc T Cc:Beaver, G Trent; Matthews, Monte K SAW (Monte.K.Matthews@usace.army.mil); Pettyjohn, Michael A; Wanucha, Dave; Dagnino, Carla S Subject:RE: Permit Modification for R-2237C Update Attachments:r-2237C Site XIII Revised.pdf All, I have attached our final revision for stormwater treatment at Site 13, which has already been permitted. Essentially we will treat the stormwater by running it through a ditch lined with seed, PSRM and riprap prior to reentering the last section of pipe and discharging. No additional modification to the permit is needed at site 13. The work will be done after the moratorium ends. We are still evaluating options for stormwater treatment at site 14. At this point, it sounds like projected impacts will remain the same (the 401 still needs to be modified for Site 14) but the discharge point will likely be near Blackberry Road. I'll send a final plan revision when I get it. -----Original Message----- From: Chambers, Marla J Sent: Tuesday, November 29, 2016 11:58 AM To: Eller, Douglas W <dweller@ncdot.gov>; Slaughter, Johnathan H <hslaughter@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov> Cc: Beaver, G Trent <tbeaver@ncdot.gov>; Matthews, Monte K SAW (Monte.K.Matthews@usace.army.mil) <Monte.K.Matthews@usace.army.mil> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties I'm not sure where exactly we are with this; I spoke with Heath about a week ago. It was my understanding that Doug was going back to the site to look again for treatment options. I have also spoke with the Site XIV land owner, Mr. Marshall, who is pushing for the water to be piped along Bills Lane to Blackberry Road. He also wants to see stormwater treatment, wherever it occurs, to protect water quality. NCDOT & I have discussed some treatment along Blackberry Road for Site XIII mod, which appeared to be feasible, but I'm not sure if that's above or below where Site XIV water would join in and if the treatment along the road would be adequate for both sources of water. We have also discussed another idea I had that I sketched on the plan sheet for Site XIII mod. I was told that the area I had the riprap treatment channel drawn in appeared to be a wetland. Unless we have found a better option for adequate stormwater treatment, I'd like a closer look to be taken at this area. Is it truly a wetland? Where are the boundaries of the wetland? Can treatment occur adjacent, but not impact the wetland? Could the pipe outlet to a riprap pad for energy dissipation then flow through the wetland for treatment? Then, if none of that is feasible, would a small impact to the wetland be acceptable to DWR and others in order to achieve treatment, which may provide an added benefit of additional water to the wetland? Those are my latest thoughts to try to help get this resolved. Thanks for your consideration, Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street 1 Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Chambers, Marla J Sent: Wednesday, November 09, 2016 3:41 PM To: Eller, Douglas W <dweller@ncdot.gov>; Slaughter, Johnathan H <hslaughter@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov> Cc: Beaver, G Trent <tbeaver@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Has there been any response or input from the resource agencies since my last email? Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Chambers, Marla J Sent: Thursday, November 03, 2016 4:35 PM To: Eller, Douglas W <dweller@ncdot.gov>; Slaughter, Johnathan H <hslaughter@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov>; vanderwiele.cynthia@epa.gov; Barnett, Kevin <kevin.barnett@ncdenr.gov>; Loretta.A.Beckwith@usace.army.mil; Matthews, Monte K SAW (Monte.K.Matthews@usace.army.mil) <Monte.K.Matthews@usace.army.mil> Cc: Beaver, G Trent <tbeaver@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties 2 I'm really not comfortable making a recommendation on this without input from the agencies who were involved in the initial design reviews. So I'm including them now to get opinions of whether this potential fix should be pursued with all the right-of- way/contractual complications it would cause. Folks, this is the Blackberry Road (Site XIII) modification site. See the last 2 days' correspondence below and attached sketch that may achieve the stormwater treatment and velocity reduction that I'm trying to get here for this trout stream, but it would scrap existing r/w agreement and require a new one to be negotiated, etc. What do you think? Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Eller, Douglas W Sent: Thursday, November 03, 2016 3:16 PM To: Slaughter, Johnathan H <hslaughter@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org>; Shown, Marc T <mshown@ncdot.gov> Cc: Beaver, G Trent <tbeaver@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties That's correct. That would be outside the signed r/w. We would have to re-negotiate with the property owner and r/w would have to get back involved with a new settlement. And we would also have to re-negotiate with the contractor because this work is being done under a supplemental agreement because its work not included in the original contract. This work and pricing has already been agreed on by the contractor and the NCDOT construction unit/division. If we're going this route I need to let the contractor know to halt his material delivery if we can get it stopped. -----Original Message----- From: Slaughter, Johnathan H Sent: Thursday, November 03, 2016 3:05 PM To: Chambers, Marla J; Eller, Douglas W; Shown, Marc T Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Looks like that may work on paper but the property owner would have to concur. We already have the right-of-way agreement signed. Doug/Mark - Thoughts? -----Original Message----- From: Chambers, Marla J Sent: Thursday, November 03, 2016 3:02 PM 3 To: Slaughter, Johnathan H <hslaughter@ncdot.gov>; Eller, Douglas W <dweller@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties One more idea I would like you to consider - the pipe runs alongside of Blackberry Road before taking the turn toward the creek. If the pipe ran a bit further down the road, then turned toward the creek where it is less steep, would we be able to achieve a stable riprap ditch for treatment and velocity reduction? We could even outlet it at the same location on the stream, and the angle would then be pointed downstream. See attached sketch of the general idea, which could definitely be tweaked, if feasible. Thanks for your consideration, Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Slaughter, Johnathan H Sent: Thursday, November 03, 2016 2:28 PM To: Eller, Douglas W <dweller@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org>; Shown, Marc T <mshown@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Marla, I concur that a rock lined ditch would be problematic due to the steep grade here but I do think angling the outlet more downstream might be helpful. If we do that, will that compromise be satisfactory to get your blessing at site 13? -----Original Message----- From: Eller, Douglas W Sent: Thursday, November 03, 2016 1:14 PM To: Chambers, Marla J <marla.chambers@ncwildlife.org>; Shown, Marc T <mshown@ncdot.gov> Cc: Slaughter, Johnathan H <hslaughter@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties I afraid the terrain is too steep where it drops. I don’t think we would ever get a ditch stabilized. And although I did not get involved with r/w acquisition, I'm pretty sure the r/w agent told me that before this property owner signed was concerned about the slope if we didn’t put it in the pipe all the way to the stream. Marc, this may be stupid and goes against normal storm drain design, but is there a way to raise the outlet pipe from the box at the end of the system so that the water has to fill a 4 portion of the box before it exits. This could allow "stuff' to settle out and drastically reduce the velocity of the water leaving the box and entering the stream. -----Original Message----- From: Chambers, Marla J Sent: Thursday, November 03, 2016 11:03 AM To: Shown, Marc T; Eller, Douglas W Cc: Slaughter, Johnathan H Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Do you think a ditch with fairly large riprap will still have erosional problems? If we get as much velocity reduction as possible inside the pipe (elbows, drop box, etc), then a stretch of riprap to filter some of the pollutants, that seems to be the best we can do to get some benefit. If Bailey Camp Creek is a similar width to what it is at Site XIV and the potential volume of water is also similar to those that blew out the gravel road at that site, stream destabilization seems possible without special measures that are being discussed. Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Shown, Marc T Sent: Thursday, November 03, 2016 7:41 AM To: Eller, Douglas W <dweller@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org> Cc: Slaughter, Johnathan H <hslaughter@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties All, Doug is correct, this is a tough site. We are having to bring the drainage down the slope directly to the creek. We could move the pipe somewhat and get a ditch to the creek, but the ditch would be at about a 15-20% grade and this would cause the same potential problems that we are trying to avoid. We can redirect the flow coming out of the pipe to angle more downstream if it is felt this will help. This can be done with the proposed elbow or by adding a junction box near the toe of the slope, whichever the Division prefers. I do not believe that there should be a hydraulic issue at this site as the volume of flow coming down the stream will be much larger than that being discharged through the drainage pipe. Please advise as how to proceed. Marc 5 -----Original Message----- From: Eller, Douglas W Sent: Wednesday, November 02, 2016 5:11 PM To: Chambers, Marla J <marla.chambers@ncwildlife.org> Cc: Slaughter, Johnathan H <hslaughter@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Marla This outlet at this site it much different. We do not have a flat area to work with. At this site where the outlet needs to be installed its almost vertical for about 25'. If we try to let the water run down the steep slope we would have some serious cutting/eroding issues. In essence we're having to install a down slope pipe. We have met with Hydro several times in the field trying to come up with a solution. This is a tough site due to the terrain. Marc, any ideas? doug -----Original Message----- From: Chambers, Marla J Sent: Wednesday, November 02, 2016 4:45 PM To: Slaughter, Johnathan H Cc: Matthews, Monte K SAW; Eller, Douglas W Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties I have not had a chance to visit this site (XIII), but I'm assuming it's in the same situation as the Bills Lane site (XIV) in that there is no treatment of the stormwater upslope near US 321. I believe the Merger team was counting on the treatment to occur downslope prior to flowing into Baileys Camp Creek. In some of the correspondence about the Bills Lane site, we were told there would be an 8' x 12' dissipater pad, although it was not laid out that way in the field. That situation is now in the process of being improved. Could I get more info on the plans for stormwater treatment and velocity dissipation for Site XIII? I would like to see those maximized as much as possible, since we're losing the treatment that had been planned, like Site XIV. I'm also concerned about the angle and location of the proposed pipe outlet/dissipater pad. It appears that if the outlet was moved or angled slightly downstream it would be less likely to create stream stability problems. Please address these concerns. Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org 6 -----Original Message----- From: Slaughter, Johnathan H Sent: Wednesday, November 02, 2016 3:01 PM To: Chambers, Marla J <marla.chambers@ncwildlife.org> Cc: Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; Eller, Douglas W <dweller@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Importance: High Marla, We still do not have things ironed out with the property owners at site 14. We do have the mod and right-of-way to address Site 13 and would like to proceed. Can you send something to Monte and I in writing waiving the moratorium at site 13. Monte would like for you to reference the exact WRC condition number from your original comment letter. We expect the work to take 2 weeks. I suppose we will coordinate with you all again once we come to an agreement with the Bill's Lane property owners regarding a plan for Site 14. -----Original Message----- From: Chambers, Marla J Sent: Monday, October 24, 2016 1:55 PM To: Shown, Marc T <mshown@ncdot.gov>; Eller, Douglas W <dweller@ncdot.gov>; Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; Kichefski, Steven L SAW <Steven.L.Kichefski@usace.army.mil>; Slaughter, Johnathan H <hslaughter@ncdot.gov> Cc: Dagnino, Carla S <cdagnino@ncdot.gov>; Wanucha, Dave <dave.wanucha@ncdenr.gov>; Barrett, William A <wabarrett@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov>; 'vanderwiele.cynthia@epa.gov' <vanderwiele.cynthia@epa.gov>; Beaver, G Trent <tbeaver@ncdot.gov>; Pettyjohn, Michael A <mpettyjohn@ncdot.gov>; Lauffer, Matthew S <mslauffer@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Thank you for your willingness to make some changes to the plans that I believe will be more protective of the resource and help to ease the concerns of a property owner, Mr. Marshall. I know he has additional concerns about what he's being asked to sign and if he will be responsible for problems arising from actions taken by NCDOT. He also is worried about his pond dam(s) downstream and along the bank of this stream, which may be vulnerable, according to his site assessment. Perhaps a period of monitoring the stream banks downstream through some bankfull events would help give Mr. Marshall the confidence he needs to be on board and allow the work to move forward before we get much further into the trout moratorium. When new plans are drawn up, please include the length of time it is expected to take for the work inside the trout buffer. Thanks, Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org 7 -----Original Message----- From: Shown, Marc T Sent: Friday, October 21, 2016 7:41 AM To: Eller, Douglas W <dweller@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org>; Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; Kichefski, Steven L SAW <Steven.L.Kichefski@usace.army.mil>; Slaughter, Johnathan H <hslaughter@ncdot.gov> Cc: Dagnino, Carla S <cdagnino@ncdot.gov>; Wanucha, Dave <dave.wanucha@ncdenr.gov>; Barrett, William A <wabarrett@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov>; 'vanderwiele.cynthia@epa.gov' <vanderwiele.cynthia@epa.gov>; Beaver, G Trent <tbeaver@ncdot.gov>; Pettyjohn, Michael A <mpettyjohn@ncdot.gov>; Lauffer, Matthew S <mslauffer@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Doug and Marla, There are no issues with ending the pipe as close to Bill's Lane as possible and constructing ditch from there to the creek. I would recommend that the ditch connect to the creek at an angle close to perpendicular as this will reduce the amount of impacts to the existing vegetated area between Bill's Lane and the Creek. This is not a good location for a level spreader as it would be often inundated by the creek and given its location and the fact that it is in a wooded section it would be very difficult to maintain. Marc -----Original Message----- From: Eller, Douglas W Sent: Wednesday, October 19, 2016 3:40 PM To: Chambers, Marla J <marla.chambers@ncwildlife.org>; Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; Kichefski, Steven L SAW <Steven.L.Kichefski@usace.army.mil>; Slaughter, Johnathan H <hslaughter@ncdot.gov> Cc: Dagnino, Carla S <cdagnino@ncdot.gov>; Wanucha, Dave <dave.wanucha@ncdenr.gov>; Barrett, William A <wabarrett@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov>; 'vanderwiele.cynthia@epa.gov' <vanderwiele.cynthia@epa.gov>; Beaver, G Trent <tbeaver@ncdot.gov>; Pettyjohn, Michael A <mpettyjohn@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Marla The previous property owner contacted us and asked us to look at his property eroding at the outlet of the pipe installed as part of the project. He had contacted us several times about the damage being done to his property and his driveway being washed away. At of the point of discharge it was evident that the water that was coming from the storm drain was making its way through the woods and across his drive. I asked the Hydraulics Unit to come up and review so that a solution could be found to eliminate the concerns of the property owner. Since the outlet of the pipe was already showing early signs of cutting a ditch through the woods, it was the Departments opinion the problem would be recurring and that the eroding/cutting of the ditch would eventually create a large ravine over a period of years. In addition the point discharge would continue to find its way to the drive and continue washing the driveway. Since the property owner brought it to the Department's attention, the Division was obligated to try to correct the problem that will continue to exist if not corrected. After Hydraulics reviewed this area in the field, it was decided that piping the storm water was the best solution to prevent future erosion and protect the drive. The plastic pipe you saw along the slope is temporary slope drain used during construction to protect the slope from washing. That pipe will be removed. 8 Unless Hydraulics Unit objects, I see no reason why we could not stop the pipe shorter and install longer rip rapped ditch to further dissipate the energy. We would need to carry the pipe across the driveway to try to prevent the drive from washing. Once we cross the drive where ever the property owners involved would like, we could stop the pipe and continue with the rip rap ditch if that is more desirable. Typically property owners do not want open ditches on their property so we were operating on that premise. The zig zagging pipe is a means to dissipate the energy of the water while it is in the pipe system. Every time the water has to travel through a turn or go through a drainage structure it loses energy. So the zigzag design was a method to reduce the energy as much as possible before the water got to the outlet. The property owners that own the up slope woods portion of the drainage revision have already signed. Part of the condition of their signature was the number of trees that were to be cut. Although the PDE is 100' wide the contractor agreed to only cut the trees necessary to get the pipe system installed. So clearcutting of the PDE is not supposed to occur. The current owners expressed a desire to build a vacation rental on the slope adjacent to the PDE and requested that we leave as many trees as possible. Hopefully this answers some of your questions. doug -----Original Message----- From: Chambers, Marla J Sent: Wednesday, October 19, 2016 12:42 PM To: Matthews, Monte K SAW; Kichefski, Steven L SAW; Slaughter, Johnathan H; Eller, Douglas W Cc: Dagnino, Carla S; Wanucha, Dave; Barrett, William A; Shown, Marc T; Buncick, Marella; 'vanderwiele.cynthia@epa.gov' Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties I met with the property owner, Mr. Marshall, and Dave Wanucha (DWR) on site yesterday. I took a number of photos, I'll share some in a subsequent email. The visit left me with additional questions, particularly about the erosion issue prompting the mod request. From the current outlet of the pipe downslope to the gravel road (Bills Lane), there appeared to be only minor erosion, however there has been a washout of the road last winter. That washout left a channel of gravel meandering through the relatively flat area between the road and the stream. Part of that flow took a direct path similar to where the pipe is proposed, but it appears the majority of the flow meandered parallel to the stream, through the relatively flat area for a ways. That area is approximately 75' wide between thee road and the stream. So is that washout months ago the reason for the mod? Was the drainage pattern different upslope in the construction zone then? There was also a plastic flexible pipe upslope directing the water away from the current pipe outlet, is that temporary or permanent? Was that there during the washout or placed there afterwards? Could the washout have occurred due to certain circumstances that no longer exist, or is this likely a recurring problem? I'm trying to better understand the problem to make sure the solution makes sense. The plans are calling for an 8' x 12' riprap pad between the pipe outlet and the stream, however there is a marker indicating the end of pipe at the edge of the stream channel, aimed at a rock on the other side of the small stream. So I'm not sure if the current plans are feasible and if they are, could the pipe outlet sooner and the riprap be extended to accomplish some treatment and energy dissipation. Perhaps a riprap channel could run parallel to the stream, like the path the washout flow took, for even better treatment and dissipation. Maybe a level spreader can be incorporated. Since the plans call for the pipe to be zigzagged down the slope, there appear to be many options for where the pipe crosses the road and emerges. The installation of the zigzagging pipe would likely involve a lot of tree clearing and earth moving. I do question the need for all that and am concerned about it occurring during the trout spawning season. Couldn't a riprap drainage channel be run down the slope, like I see on large fill slopes? Or maybe all that's needed are a few strategically placed rocks upslope to spread out or redirect the flow. Another thought we had in the field was to collect the water on the upslope side if the road and run it in a ditch or pipe beside the road. If a pipe, then outlet it far enough away from the receiving stream to get some treatment. Those are some thoughts and questions. Seems like we need to get some people together to figure out what's really going on, what is needed to solve and how best to do it. 9 Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Chambers, Marla J Sent: Friday, October 14, 2016 4:35 PM To: Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; 'Kichefski, Steven L SAW' <Steven.L.Kichefski@usace.army.mil>; Slaughter, Johnathan H <hslaughter@ncdot.gov>; Eller, Douglas W <dweller@ncdot.gov> Cc: Dagnino, Carla S <cdagnino@ncdot.gov>; Wanucha, Dave <dave.wanucha@ncdenr.gov>; Barrett, William A <wabarrett@ncdot.gov>; Shown, Marc T <mshown@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov>; vanderwiele.cynthia@epa.gov Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties I have reviewed the permit modification and have spoken with the property owner at the proposed outlet at Site XIV, Mr. Shannon Marshall. I'm scheduled to meet with him on site on Tuesday to get a better view of the situation. If I understand correctly, issues with Mr. Marshall (signing of drainage easement) will need to be resolved before the permit can be issued and construction take place. It looks like that will probably go beyond Nov. 1. Once we determine the best way to resolve this and the amount of work involved, I intend to allow a short suspension of the moratorium, just long enough to do the work. Mr. Marshall appears to be trying to ensure that long term negative impacts to the trout stream and his property do not occur and that this is resolved is the best manner. I'm told that shoulder berm gutters will be used to transport water along the US 321 project into the pipe that takes it downhill and outlets on his property to flow to Baileys Camp Creek. Then an 8' long riprap dissipater outlet pad is proposed between the pipe and the stream (although the end of pipe is marked at the stream channel in the field). This provides little to no filtration or treatment of the stormwater. The pipe does reduce the slope to be relatively flat the last 80' or so and outlets at a 90 degree angle to the stream. The concerns are with both water quality and quantity/velocity. Erosive forces in the channel could jeopardize a pond dam at the bank of the stream about 100 ' downstream, as well as impact the quality of the water in the trout stream. I'm wondering if there are any opportunities for improvements here that could help Mr. Marshall and me feel more comfortable with this work, so we can move forward and get the erosion situation fixed. Can riprap ditches be used instead of shoulder berm gutters? Can the pipe outlet location be changed to allow for a longer riprap treatment and energy dissipation and a better angle to the stream? Can the inside of the pipe be roughened (such as a series of sills)? Can NCDOT agree to monitor the channel at and downstream of the pipe outlet to ensure long term stability? I'm hoping we can find a way to protect the trout stream and move forward on this. 10 Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org ncwildlife.org -----Original Message----- From: Kichefski, Steven L SAW \[mailto:Steven.L.Kichefski@usace.army.mil\] Sent: Friday, September 30, 2016 2:07 PM To: Slaughter, Johnathan H <hslaughter@ncdot.gov>; Eller, Douglas W <dweller@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org> Cc: Matthews, Monte K SAW <Monte.K.Matthews@usace.army.mil>; Dagnino, Carla S <cdagnino@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Heath/Marla, Just wanted to let you know that in an effort to get this modification done as soon as possible, Monte will be working on this one. I have copied him on this email. Regards, Steve -----Original Message----- From: Slaughter, Johnathan H \[mailto:hslaughter@ncdot.gov\] Sent: Friday, September 30, 2016 11:47 AM To: Eller, Douglas W <dweller@ncdot.gov>; Chambers, Marla J <marla.chambers@ncwildlife.org> Cc: Kichefski, Steven L SAW <Steven.L.Kichefski@usace.army.mil> Subject: \[EXTERNAL\] FW: Permit Modification Application for R-2237C Watauga/Caldwell Counties Marla, Be advised that this proposed work is being done to fix and ongoing erosion issue. I would think you would want it addressed even if during the winter. We are fine with doing the work prior to 11/1 but that is dependent on getting the modification back from the corps soon. From: Chambers, Marla J Sent: Friday, September 30, 2016 11:43 AM 11 To: Dagnino, Carla S <cdagnino@ncdot.gov> Cc: Slaughter, Johnathan H <hslaughter@ncdot.gov> Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties If the work can be done by Nov. 1, we can agree to delay the start of the moratorium until then. If not, I'll need more info as to how long it will take to do the in-water/in-buffer work and how much soil disturbance and potential for losing sediment into the stream there will be. I do request that ground-disturbing work occurring in the buffer during the 2-week delay be minimized. Marla Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 office: 704-982-9181 mobile: 704-984-1070 Marla.chambers@ncwildlife.org <mailto:Marla.chambers@ncwildlife.org> ncwildlife.org <Blockedhttp://ncwildlife.org/> <Blockedhttp://twitter.com/ncwildlife> <Blockedhttp://www.facebook.com/pages/NC-Wildlife-Resources-Commission/169986143088699?ref=tn_tnmn> <Blockedhttp://instagram.com/ncwildlife> <Blockedhttp://www.youtube.com/user/NCWRC?blend=2&ob=video-mustangbase> From: Dagnino, Carla S 12 Sent: Thursday, September 29, 2016 3:24 PM To: Chambers, Marla J <marla.chambers@ncwildlife.org <mailto:marla.chambers@ncwildlife.org> > Subject: FW: Permit Modification Application for R-2237C Watauga/Caldwell Counties Hi Marla, Please see the email below. The Division is asking for an allowance to work instream beyond the moratorium date of October 15th. Will you please give input on this - so they can address the problem at this site? Thanks! Carla From: Eller, Douglas W Sent: Wednesday, September 28, 2016 9:43 AM To: Dagnino, Carla S Cc: Slaughter, Johnathan H; Beaver, G Trent Subject: RE: Permit Modification Application for R-2237C Watauga/Caldwell Counties Carla Is there anyway we can get a verbal to proceed with this work or permission to install these rip rap dissipater pads after Oct 15. We desperately need to correct and prevent any further erosion damages to the property receiving our storm drain flow from the project. Currently we're waiting on AT&T to move they're lines in conflict. AT&T in notoriously slow and I'm afraid by their fault we will be pushed a little passed the Oct 15 timeframe. I think this is a benefit to all to get this addressed. Thanks Doug Eller District Engineer From: Slaughter, Johnathan H Sent: Wednesday, September 28, 2016 8:36 AM To: Beaver, G Trent; Eller, Douglas W Subject: FW: Permit Modification Application for R-2237C Watauga/Caldwell Counties 13 FYI From: Dagnino, Carla S Sent: Tuesday, September 27, 2016 5:11 PM To: 'Steven.L.Kichefski@usace.army.mil' <Steven.L.Kichefski@usace.army.mil <mailto:Steven.L.Kichefski@usace.army.mil> >; Chapman, Amy <amy.chapman@ncdenr.gov <mailto:amy.chapman@ncdenr.gov> > Cc: clarence.coleman@fhwa.dot.gov <mailto:clarence.coleman@fhwa.dot.gov> ; Cynthia VanDerWiele <vanderwiele.cynthia@epa.gov <mailto:vanderwiele.cynthia@epa.gov> >; Joyner, Drew <djoyner@ncdot.gov <mailto:djoyner@ncdot.gov> >; Militscher, Chris (militscher.chris@epa.gov <mailto:militscher.chris@epa.gov> ) <militscher.chris@epa.gov <mailto:militscher.chris@epa.gov> >; Monte Matthews (Monte.K.Matthews@usace.army.mil <mailto:Monte.K.Matthews@usace.army.mil> ) <Monte.K.Matthews@usace.army.mil <mailto:Monte.K.Matthews@usace.army.mil> >; Tony Able (Able.tony@Epa.gov <mailto:Able.tony@Epa.gov> ) <Able.tony@Epa.gov <mailto:Able.tony@Epa.gov> >; Al-Ghandour, Majed N <malghandour@ncdot.gov <mailto:malghandour@ncdot.gov> >; Koch, Thomas K <tkoch@ncdot.gov <mailto:tkoch@ncdot.gov> >; Carpenter,Kristi <kristilynn.carpenter@ncdenr.gov <mailto:kristilynn.carpenter@ncdenr.gov> >; Chambers, Marla J <marla.chambers@ncwildlife.org <mailto:marla.chambers@ncwildlife.org> >; Mellor, Colin <cmellor@ncdot.gov <mailto:cmellor@ncdot.gov> >; NCDOT Service Account - Roadway Design <roadwaydesign@ncdot.gov <mailto:roadwaydesign@ncdot.gov> >; Pettyjohn, Michael A <mpettyjohn@ncdot.gov <mailto:mpettyjohn@ncdot.gov> >; Slaughter, Johnathan H <hslaughter@ncdot.gov <mailto:hslaughter@ncdot.gov> >; Staley, Mark K <mstaley@ncdot.gov <mailto:mstaley@ncdot.gov> >; Wanucha, Dave <dave.wanucha@ncdenr.gov <mailto:dave.wanucha@ncdenr.gov> >; Wilkins, Ronald B <rbwilkins@ncdot.gov <mailto:rbwilkins@ncdot.gov> >; RaSharon King (rmking@tva.gov <mailto:rmking@tva.gov> ) <rmking@tva.gov <mailto:rmking@tva.gov> >; marella_buncick@fws.gov <mailto:marella_buncick@fws.gov> ; Barrett, William A <wabarrett@ncdot.gov <mailto:wabarrett@ncdot.gov> > Subject: Permit Modification Application for R-2237C Watauga/Caldwell Counties The Permit Modification Application for R-2237C has been posted to the website. The electronic copy can be viewed /downloaded at Blockedhttps://connect.ncdot.gov/resources/Environmental/ Named: R-2237C MOD Caldwell Watauga September 27 2016 Thank you. Carla Dagnino Western Region Environmental Program Supervisor II 14 Natural Environment Section Project Development and Environmental Analysis NC Department of Transportation 919 707 6110 office cdagnino@ncdot.gov <mailto:cdagnino@ncdot.gov> 1598 Mail Service Center Raleigh, NC 27699 -1598 1020 Birch Ridge Drive Raleigh, NC 27610 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. ________________________________ Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. 15