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Home My WebLink About20161074 Ver 1_I-3802B - Draft 4C Meeting Minutes_20161013 Strickland, Bev From:Lee, Craig J Sent:Thursday, October 13, 2016 10:38 AM To:Alakhdar, Khaled A; Cynthia Vanderwiele; Dagnino, Carla S; Wanucha, Dave; Elam, William H; Felix Davila; Hering, David T; John Thomas; Lauffer, Matthew S; Marella Buncick; Chambers, Marla J; Mason, James S; Raulston, Keith E; Staley, Mark K; Williams, John L Subject:I-3802B - Draft 4C Meeting Minutes Attachments:2016 10 11_I-3802B_Hydro_4C_Meeting_Minutes_Draft.doc; 2016 10 11 _I-3802B_Hydro_4C_Meeting_Minutes_Draft.pdf; I-3802B 4C Meeting Sign-In Sheet.pdf All, Please see the attached draft meeting minutes for the I-3802B Concurrence Point 4C meeting that was held on September 22, 2016. Please review the attached document and provide any revisions/comments you may have by COB Friday, October 28, 2016. When all revisions are made, a final copy will be sent to the whole group. Thank you. Thanks, Craig J. Lee, PE Design Engineer Hydraulics Unit North Carolina Department of Transportation 919 707 6708 office cjlee@ncdot.gov Delivery: 1020 Birch Ridge Dr. Raleigh, NC 27610 Mailing: 1590 Mail Service Center Raleigh, NC 27699-1590 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. 1 TO: Bill Elam, PE NCDOT Hydraulics Unit FROM:James Rice, PE DATE: September 22, 2016 SUBJECT:I-3802B 4C Meeting Minutes nd Meeting Date: September 22, 2016 Meeting Attendees: Bill Elam NCDOT Hydraulics Craig Lee NCDOT Hydraulics Matt Lauffer NCDOT Hydraulics Keith Raulston NCDOT Division 9 John Thomas US Army Corp of Engineers Dave Wanucha Division of Water Quality (via phone) Khaled Alakhdar NCDOT Design Build David Herring NCDOT Design Build Marla Chambers NC Wildlife Commission Marella Buncick US Fish and Wildlife Service Felix Davila FHWA Carla Dagnino NCDOT Natural Environmental Section Jim Mason NCDOT Natural Environmental Section John Williams NCDOT Project Development Casey Hurley Lane Construction James Rice HDR Brian Steffen HDR Erskine Brooks HDR Will Moody HDR Jonathan Henderson HDR Vickie Miller HDR Josh Massrock HDR General  Introductions  A few adjustments have been made since the sets were uploaded, mainly to align cross pipes better with the receiving channel  For this project we will be widening approximately 5.5 miles of existing I-85 to the inside along with a redesign of the US 29/ NC 152 interchange  We have 2 major interchanges: NC 152/I-85 and US 29/NC 152 and 3 bridge replacements: Daugherty Road, Pine Ridge Road, and Lentz Road  Urban discharge equations were used for all drainage design. Biggest change from 4B o Required several trenchless excavations o Impacts were minimized for the bore pits (shown in green on plans) o I-3802B 4C Meeting September 22, 2016 Page 2  Located within the Yadkin River Basin Coldwater Creek Restraints o Topography Restraints o ROW Restraints o Matt Lauffer noted that all NCDOT projects are to meet MEP  Wherever possible we utilized existing outfalls, although we were required by the RFP to replace any corrugated metal pipe within the right of way limits. In those situations we tried to replace the pipes in the same locations as best we could  Hazardous Spill Basins with a Media Filter will be utilized within a half mile radius of the Lake Fischer critical watershed area There was a quick discussion regarding the I-3804 project. John Thomas mentioned there were two possible alternatives and no big conflicts between I-3802B and I-3804. Dave asked about the Hazardous Spill Basin and if they catch all the stormwater. HDR responded that the basins were sized based on the BMP Toolbox for Hazardous Spill Basins. In order to incorporate a media filter, a forebay was sized appropriately and the rest of the basin became the media filter. In order to size the media filter based on the BMP Toolbox more right of way would have to be acquired. Dave asked what storm overtopped the HSB/Media filter. HDR responded that all stormwater goes through the basin, but may bypass the media filter in the 1+ year event. PSH 12  Permit Site 1 - Jurisdictional stream – 495+50 LT Edit: Shifted 42” Pipe closer to existing to make angle better o NRTR Stream ID – SIA o NRTR does not show the inlet stream as jurisdictional, therefore no impacts were o taken Bank stabilization for outlet of Hazardous Spill Basin o Filling of existing scour hole with class ‘I’ rip rap o Rip Rap will be keyed in to maintain natural bed elevation No comments at this site PSH 13  Permit Site 2 - Jurisdictional stream – 513+00 LT/RT Edit: Permanent impact on inlet of 48” CSP has been extended due to earth berm o NRTR Stream ID – SIC o RT – Replace existing 60”x46” CMAP pipe with 48” CSP per RFP, adding earthen o berm I-3802B 4C Meeting September 22, 2016 Page 3 Addressing comment from 4B meeting, the concrete pad will be removed due to the 48” CSP construction LT – Scour hole and bank stabilization for ex. 48” RCP, embankment rip rap for o emergency spillway ditch, and outlet of Hazardous Spill Basin Marla asked about JB in median and if the proposed would still allow passage through the pipe. HDR mentioned that it would act exactly the same at the existing DI just have a slab lid on top to not allow any flow into the existing box but direct this flow to a new DI and provide treatment. PSH 14  Permit Site 3 - Jurisdictional stream – 521+00 LT/RT Edit: 48” trenchless pipe moved closer to ex. culvert o NRTR Stream ID - SIE/SBF o 48” trenchless to supplement 8’x8’ box culvert. The 48” is set at a higher elevation o and will act as relief in larger storms. It was placed on the left side to minimize impacts to the wetlands LT - Embankment rip rap for outlet of Hazardous Spill Basin and 4’ base ditch o RT - Embankment rip rap tying in to bank near culvert o The concrete ditch will be removed; class ‘I’ rip rap will be added to control the discharge velocity No comments at this site  Permit Site 4 - Wetlands – 521+75 to 533+35 RT NRTR Wetland ID – WAN o Utilizing 1.5:1 reinforced side slopes to minimize wetland impacts o As discussed in the 4B meeting, all work on the reinforced soil stabilization will be done from the top to avoid impacts to the wetlands Impact is due to Method 3 clearing (shown as mechanized clearing) John mentioned if it is hand clearing then we will need to identify it as such. HDR said that they will change it to hand clearing since we do not anticipate any kind of grubbing in the area of the RSS since it will be constructed from the shoulder. PSH 15  Permit Site 5 - Wetlands – 534+60 LT NRTR Wetland ID – WAH o Outlet of Hazardous Spill Basin and filling of scour hole with class ‘I’ rip rap o No comments at this site  Permit Site 6 – Jurisdictional Stream Edit: Showing chevrons for ditch that will be constructed and channel o reconstruction detail Removal of 12’ x 10’ Triple Barrel Culvert o I-3802B 4C Meeting September 22, 2016 Page 4 Culvert will be removed and existing fill will be graded to natural ground Jim Mason asked if there is opportunity at Site 6 to get any credit back towards the other impacts in the project. John responded that they have done it in the past, but recently they have not been doing on-site credits. Marella asked about the roadway fill on the opposite side of the stream to see if it would be possible for an on-site mitigation area. HDR stated that the current plan is to only remove the fill from the culvert to the bridge as stated in the RFP. Carla said she would talk to Leilani and NES about the possibility. Marla asked if pavement west of the culvert would go away, HDR responded that the pavement would go away and a turn-out would be put in with barriers. PSH 16  Permit Site 7 - Jurisdictional stream – 554+25 LT Edit: Moved 24” trenchless closer to ex. 42” and improved alignment of the outlet o NRTR Stream ID – SJ o Cleanout of Existing 24” RCP and 42” RCP o There is a berm that separates the JS from the pipe outlets Removal of concrete ditch and replacing with base ditch with class ‘I’ rip rap at o embankment In regards to the berm at the ex. 24” and 42” outlet, John said to add a note to the plan “pipe cleanout/outlet improvement” for the future when compliance checks are done. Everyone was in agreement to remove the berm. Jim is going to check with location surveys to see if the JS line is correct. Craig suggested to put a tail ditch from the pipe outlets to the creek with bank stabilization. PSH 17  Permit Site 8 - Wetlands – 561+55 RT NRTR Wetland ID – WAQ o Impact due to Method 3 clearing o Due to impact being at top of slope, we don’t expect clearing in wetland John mentioned how the wetland goes up the hill. HDR said they would leave it just to make sure it is covered. Dave asked John if mechanized clearing is considered a permanent impact, John responded that it is not considered a permanent impact if a restoration plan is in place. The final decision was to change to hand clearing since we do not expect any grubbing in that area. Vickie asked about the stand alone wetland WAQ. John mentioned that this survey was done in 2005 and since nothing has really changed. The decision was made to go with what was originally shown. I-3802B 4C Meeting September 22, 2016 Page 5  Permit Site 9 - Jurisdictional stream – 570+95 LT Edit: Added energy dissipater box on outlet of supplemental pipe, and extended rip- o rap in scour/embankment NRTR Stream ID – SJA o Adding 48” trenchless to supplement the ex. 42” o The 48” trenchless will be installed 2’ higher for use during larger storms Ditch tie-in to JS bank due to removing existing CMP and trenchless pipe o installation Scour hole stabilization at Ex. 42” RCP outlet o Marla asked if the rip rap will remain below the thalweg, and not restrict flow. HDR responded that it will be put in at the natural bed elevation and not just dumped in the stream. Jim asked if the scour hole rip rap will be considered bank stabilization. John responded that in this case it will be considered an impact but not a loss. John would like those sites denoted as bank stabilization in the impact sheets. PSH 18  Permit Site 10 – Jurisdictional Stream – 577+50 LT Edit: Improved the outlet angle of the 48” trenchless pipe o Set at the edge of wetland elevation to ensure no wetland impacts NRTR Stream ID - SJE o Embankment rip rap at ex. 24” and 48” trenchless outlet o Temporary impact to wetland WAR to construct the 48” trenchless pipe o No comments at this site  Permit Site 11 - Jurisdictional stream – 584+64 LT NRTR Stream ID – SJB o Embankment rip-rap for 18” CSP o As suggested in the 4B meeting, the proposed 18” CSP pipe will be placed at an elevation near to the natural bed elevation to avoid future erosion (Existing pipe is perched approximately 4’) No comments at this site PSH 19  Permit Site 12 - Wetlands – 592+50 RT NRTR Wetland ID – WAV o Mechanized clearing in wetland WAV o I-3802B 4C Meeting September 22, 2016 Page 6 From discussion at 4B meeting, the proposed inlet pipe at 591+75 RT will be set at o same elevation as the existing pipe to maintain the wetland RSS(Reinforced Soil Stabilization) on west side of Daugherty Rd to avoid impacts o to Cold Water Creek HDR to change mechanized clearing to hand clearing  Permit Site 13 – Jurisdictional Stream – 591+60 LT Edit: Slight adjustment to PDE to contain all construction o NRTR Stream ID – SJ o Removing concrete ditch and replacing with base ditch with rip rap o Embankment rip rap on bank of Coldwater Creek o No comments on this site  Permit Site 14 – Jurisdictional Stream – 597+20 LT NRTR Stream ID – SJ o Embankment rip rap on bank of Coldwater Creek o o Dave asked if all of these outlets were stormwater outlets. HDR said that these were all existing inlets that we are replacing, there will be no new inlets. Change impacts to hand clearing in this area. PSH 20  Permit Site 15 - Jurisdictional stream – 602+42 LT NRTR Stream ID – SJ o Replacing 18” RCP with 42” RCP o Embankment rip rap on bank of Coldwater Creek o No comments on this site  Permit Site 16 - Jurisdictional stream – 614+40 LT Edit: Replacing outlet of 48” RCP due to structural deficiencies o NRTR Stream ID – SJ/SJH o Embankment rip-rap on bank of Coldwater Creek o No comments on this site PSH 21  Permit Site 16 Edit: – Jurisdictional Stream – 615+70 RT NRTR Stream ID – SJH o Temporary impacts due to pipe replacement at outlet end o Marla asked if the stream to the side of the inlet was JS, HDR responded that it was not. I-3802B 4C Meeting September 22, 2016 Page 7 PSH 22  Permit Site 17 - Jurisdictional stream – 633+45 LT/RT Edit: Added bank stabilization on inlet side of 30” RCP o Supplementing ex. 30” with a 24” at a higher elevation for larger storms o LT: NRTR Stream ID – SJ o RT: NRTR Stream ID - SJJ o LT - Embankment rip rap at outlet of ex. 30” and 24” RCP o RT – Embankment rip rap at ditch tie-in o No comments on this site  Permit Site 18 - Jurisdictional stream – 639+60 LT NRTR Stream ID – SJ o Embankment rip rap on bank of Coldwater Creek o RSS on Pine Ridge Rd. to avoid impacts to stream o No comments on this site PSH 23  Permit Site 19 – Jurisdictional Stream – 645+50 LT NRTR Stream ID – SK o Removing concrete ditch and replacing with base ditch and embankment rip rap on o Coldwater Creek No comments on this site  Permit Site 20 - Jurisdictional stream – 654+50 LT NRTR Stream ID – SKC o Scour hole stabilization with class ‘I’ rip rap o No comments on this site PSH 24  Permit Site 21 - Jurisdictional stream – 663+65 RT NRTR Stream ID – SKD o LT - 30” CSP pipe with BDO o RT - Bank stabilization on outlet side o  RSS on Lentz Rd. to avoid impacts to Cold Water Creek and SKE No comments on this site  Permit Site 22 – Jurisdictional stream – 668+00 LT/RT I-3802B 4C Meeting September 22, 2016 Page 8 Edit: Added energy dissipater box on 48” RCP and floodplain bench detail o NRTR Stream ID – SKF o 48” trenchless pipe as a supplemental pipe at a higher elevation and retaining 72” o pipe RT - Floodplain bench for proposed 48” RCP with class ‘I’ rip rap o LT – Embankment rip rap for ditch draining 18” CSP and 48” RCP discharge o No comments on this site PSH 25  Permit Site 23 – Jurisdictional stream – 673+25 LT NRTR Stream ID – SK o Removing concrete ditch and adding embankment rip rap on Coldwater Creek o No comments on this site  Permit Site 24 – Jurisdictional stream – 676+10 LT NRTR Stream ID – SK o Rip rap in existing ditch and embankment rip rap on Coldwater Creek o No comments on this site  Permit Site 25 – Jurisdictional stream – 677+10 LT NRTR Stream ID – SK o Rip rap in existing ditch and embankment rip rap on Coldwater Creek o Marla asked if the stream on the inlet side was JS, HDR responded that it was not PSH 27  Quadrant sheets were eliminated to avoid possible confusion. Sheets now go in order according to Site number  Permit Site 26 - Jurisdictional stream – 17+17 Y19RPB LT NRTR Stream ID – SKI o Junction box to fix perched 24” RCP o Rip rap to stabilize banks of JS o Marla asked if the flow would still be passing through the 60” as it currently is. HDR explained that the drop box will happen in the 24” and the 60” will stay the same as existing in the bed of the stream not restricting passage.  Permit Site 27 - Jurisdictional stream – 42+88 Y19 LT I-3802B 4C Meeting September 22, 2016 Page 9 NRTR Stream ID – SK o 86 ft. extension of 7’x7’ Single Barrel Cox Culvert o Marla asked if a proper connection will be done at the culvert. Looking at the pictures, the outlet is currently slightly perched, the new culvert extension will be placed at the bed elevation to improve the outlet condition.  Permit Site 28 - Jurisdictional stream – 22+50 Y19RPC RT Edit: Drainage has been changed to discharge in JS at better angle o NRTR Stream ID – SKI o 120 ft. extension of 60” RCP o In the 4B set, a lateral ditch was shown to the north of the 60” extension. That is o now a pre-formed scour hole to avoid any additional impact from that drainage James explained the drainage has been changed recently to help with the bad angle of drainage into the JS, a JB now collects the water. Marla asked if the JB would restrict aquatic passage, HDR responded that it would not, it would be placed at the stream elevation.  Permit Site 29 – Jurisdictional stream – 21+00 Y19RPA RT NRTR Stream ID – SK o Rip rap of existing ditch and embankment rip rap on Coldwater Creek o No comments on this site PSH 28  Permit Site 30 - Jurisdictional stream – 730+61 RT Edit: 36” Trenchless was added as a supplemental pipe. It will be installed at a o higher elevation NRTR Stream ID – SKL o Extend ex. 36” RCP on inlet and outlet o Scour hole stabilization at the outlet o RSS to avoid stream and wetland impacts o Marla asked about the 90 degree turn into the pipe. HDR explained that the existing flow will be maintained and the supplemental pipe will be installed a higher elevation. Marla mentioned that she was appreciative of the floodplain pipes. PSH 29  Permit Site 31 - Jurisdictional stream – 741+50 LT Edit: Detail added for daylight of stream o NRTR Stream ID – SKM o Removal of 36” CMP and replacing with lateral base ditch o Daylighting approximately 485’ of stream I-3802B 4C Meeting September 22, 2016 Page 10 Marla asked if a natural channel design would be considered here, HDR stated that with the area being 30-40’ deep a channel design wouldn’t be feasible. Keith was asked if he had any input and he said remove the pipe. PSH 30  Permit Site 32 - Wetland and Jurisdictional stream – 61+38 Y30 RT NRTR Stream ID – SLA o NRTR Wetland ID - WBH o Extend 30” RCP and 30” trenchless installation o As discussed in the 4B meeting, daylight will remain between the pipes and rip rap o will be placed between the inlet and outlet Wetland is currently in the process of getting updated at this location due recent to o Hope Lane construction John mentioned that the impacts have already been accounted for in the ongoing rail project in the area. He directed HDR to not show the impacts in the permits and put a note that the impacts were in the previous project. HDR mentioned there will be impacts for the supplemental pipe, so they will show only those, but there will be a note added to the plans.  Permit Site 33 - Jurisdictional stream – 758+00 RT Edit: Additional 30” trenchless pipe due to structurally deficient ex. 30” o NRTR Stream ID – SLA o Double 30” trenchless installation with rip rap in ditch o Bank stabilization at outlet of ex. 30” RCP o Marla asked if the overflow pipe will be installed a higher elevation. HDR mentioned that the supplemental will be placed at a slightly higher elevation, but it will not be as much as in other areas due to the lack of cover under the road. John mentioned DOT does not like open pipes. HDR explained that by having open pipes, this will allow water to enter the pipe without needing an inlet. PSH 33  Permit Site 34 - Jurisdictional stream – 26+60 Y19 LT/RT Edit: Re-aligned inlet of pipe to match up better with JS o NRTR Stream ID – SKO o RT - Extension of 30” RCP inlet o LT - Extension of 30” RCP outlet with drop box, bank stabilization at outlet o No comments on this site I-3802B 4C Meeting September 22, 2016 Page 11 PSH 37  Permit Site 35 - Jurisdictional stream – 18+16 Y30 LT/RT Edit: Cross pipe will be upsized to 36” and buried 6”. Added temporary impact to o the outlet of the pipe. NRTR Stream ID – SKJA o 30” RCP and bank stabilization with class ‘I’ rip rap at outlet o No comments on this site  Permit Site 36 - Jurisdictional stream – 20+00 Y30 RT Edit: Adding 30” trenchless pipe due to structurally deficient ex. 30” o NRTR Stream ID – SKJ o 30” RCP and bank stabilization with class ‘I’ rip rap at outlet o No comments on this site PSH 38  Permit Site 37 – Jurisdictional stream – 34+00 Y30 RT NRTR Stream ID - SKN o Scour hole stabilization with class ‘I’ rip rap o No comments on this site  Permit Site 38 – Jurisdictional stream – 39+65 Y30 RT Edit: Removing ex. 30” RCP due to being structurally deficient and replacing with o 48” RCP. This will daylight 130’ feet of stream. NRTR Stream ID – SK o Rip rap at embankment of JS o No comments on this site TO: FROM: DATE: SUBJECT: Bill Elam, PE NCDOT Hydraulics Unit James Rice, PE September 22, 2016 I-3802B 4C Meeting Minutes Meeting Date: September 22"d, 2016 Meeting Attendees: Bill Elam Craig Lee Matt Lauffer Keith Raulston John Thomas Dave Wanucha Khaled Alakhdar David Herring Marla Chambers Marella Buncick Felix Davila Carla Dagnino Jim Mason John Williams Casey Hurley James Rice Brian Steffen Erskine Brooks Will Moody Jonathan Henderson Vickie Miller Josh Massrock NCDOT Hydraulics NCDOT Hydraulics NCDOT Hydraulics NCDOT Division 9 US Army Corp of Engineers Division of Water Quality (via phone) NCDOT Design Build NCDOT Design Build NC Wildlife Commission US Fish and Wildlife Service FHWA NCDOT Natural Environmental Section NCDOT Natural Environmental Section NCDOT Project Development Lane Construction HDR HDR HDR HDR HDR HDR HDR General Y Introductions Y A few adjustments have been made since the sets were uploaded, mainly to align cross pipes better with the receiving channel Y For this project we will be widening approximately 5.5 miles of existing I-85 to the inside along with a redesign of the US 29/ NC 152 interchange Y We have 2 major interchanges: NC 152/I-85 and US 29/NC 152 and 3 bridge replacements: Daugherty Road, Pine Ridge Road, and Lentz Road Y Urban discharge equations were used for all drainage design. o Biggest change from 4B o Required several trenchless excavations o Impacts were minimized for the bore pits (shown in green on plans) I-3802B 4C Meeting September 22, 2016 Page 2 Y Located within the Yadkin River Basin o Coldwater Creek Restraints o Topography Restraints o ROW Restraints Matt Lauffer noted that all NCDOT projects are to meet MEP Y Wherever possible we utilized existing outfalls, al replace any corrugated metal pipe within the rig;� tried to replace the pipes in the same locations ,� � Y Hazardous Spill Basins with a Media Filte� wi�l the Lake Fischer critical watershed area ., � � �>�� There was a quick discussion regarding the I��`� projE two possible alternatives and no big conflicts betiv��i�;I 3 we were required by the RFP to y limits. In those situations we within a half mile radius of John Thoma� �Qntioned there were '�I�and I-3804 _,. Dave asked about the Hazardous ,�'��::,$asin and �f� .�ey catch all the stormwater. HDR responded that the basins were sized 1��s�c� t�� he BMP T��lzox for Hazardous Spill Basins. In order to incorporate a media filter, a fa��bay � sized ap��iately and the rest of the basin became the media filter Zt� ��'der to size t�e media��r based` � tihe BMP Toolbox more right of way would have to �� '��.;, _ ':��,�' Dave asked what stoi� goes through the basin, Y � �`��mit Site 1 ='��i��,c „ �„Edit: Shiftec� {�� RTR Stream � o ��`�R does not ta��r o Bank �`��lizati o Filling o�'`��sti ■ Rip 1��'� � No comments at this site filter. HDR responded that all stormwater ter in the 1+ year event. o� �tream — 4��50 LT ipe `��r to existing to make angle better SIA �� the in��`�stream as jurisdictional, therefore no impacts were r �� outlet of Hazardous Spill Basin ��ur hole with class `P rip rap 5e keyed in to maintain natural bed elevation PSH 13 Y Permit Site 2- Jurisdictional stream — 513+00 LT/RT o Edit: Permanent impact on inlet of 48" CSP has been extended due to earth berm o NRTR Stream ID— SIC o RT — Replace existing 60"x46" CMAP pipe with 48" CSP per RFP, adding earthen berm I-3802B 4C Meeting September 22, 2016 Page 3 ■ Addressing comment from 4B meeting, the concrete pad will be removed due to the 48" CSP construction o LT — Scour hole and bank stabilization for ex. 48" RCP, embankment rip rap for emergency spillway ditch, and outlet of Hazardous Spill Basin Marla asked about JB in median and if the proposed would still allow passage through the pipe. HDR mentioned that it would act exactly the same at the existin� DI just have a slab lid on top to not allow any flow into the existing box but direct this flow ta rz ��v DI and provide treatment. PSH 14 Y Permit Site 3- Jurisdictional stream — 521+00:�.�'/RT o Edit: 48" trenchless pipe moved clos� �� ex. culvert i� o NRTR Stream ID - SIE/SBF 0 48" trenchless to supplement 8'�$'=�ox culvert. The 48 and will act as relief in larger sto�� ■ It was placed on the left side tci��i� o LT - Embankment rip r�p for outlet of �� o RT - Embankment rip `r�� t�'i�ag in to bank ■ The concrete ditch �ill �� r�moved; the discharge velocity - at a higher elevation � to the v�e�lands Basin and �� ase ditch culvert �j�,`I' rip rap will be added to control No comments at this s�� `� i� ��=�� Y Permit Site 4-�Wetlands =�21+75 to �33+35 RT ° o NRTR We��;d ID — �U`AN o��l�ing 1.5: l��;�'t��c� ��d� slopes tt� minimize wetland impacts . ,�� ';t� d�scusse4� �i� the 4� ��ting, a:11 work on the reinforced soil stabilization wi1� b� done fr�r� the top tc� ��t�iti impacts to the wetlands y° ■ Impac�� s �ue to �I�thod 3 clea"ring (shown as mechanized clearing) S :,:: ::. .y,:: : :�::. i::::. John ment�or�r��'it is hand� c��'ing the�; �ve will need to identify it as such. HDR said that they will change it tt�;��xnd clearing ��sce we do not anticipate any kind of grubbing in the area of the RSS since it will �e��azstructed ��n the shoulder. PSH 15 Y Permit Site 5- W�etl�nc�s — 534+60 LT o NRTR Wetland ID— WAH o Outlet of Hazardous Spill Basin and filling of scour hole with class `P rip rap No comments at this site Y Permit Site 6— Jurisdictional Stream o Edit: Showing chevrons for ditch that will be constructed and channel reconstruction detail o Removal of 12' x 10' Triple Barrel Culvert I-3802B 4C Meeting September 22, 2016 Page 4 ■ Culvert will be removed and existing fill will be graded to natural ground Jim Mason asked if there is opportunity at Site 6 to get any credit back towards the other impacts in the project. John responded that they have done it in the past, but recently they have not been doing on-site credits. Marella asked about the roadway fill on the opposite side of the stream to see if it would be possible for an on-site mitigation area. HDR stated that the c�rrent plan is to only remove the fill from the culvert to the bridge as stated in the RFP. Ca��'a �said she would talk to Leilani and NES about the possibility. Marla asked if pavement west of the culvert woula�`�� away, HDI�'�esponded that the pavement would go away and a turn-out would be put in w��kz �arriers. PSH 16 Y Permit Site 7- Jurisdictional stream — 554��; LT o Edit: Moved 24" trenchl��s closer to ex': ��" a�� improved alignm�� of the outlet o NRTR Stream ID — SJ o Cleanout of Existing 24" R�P ��d �2" RCP `' ■ There is a berm that s�iarates th� JS from ��e �ipe outlets o Removal of �oncrete ditch �n�i replacing �vvith bas� ditch with class `I' rip rap at embank�� .. , In regards to the berm,c�i' the ex. 24 �' and 42 " a�ilet, John said to add a note to the plan "pipe cleanout/outlet improveme�t"for �l�e f��ure whe�t �ompliance checks are done. Everyone was in agreemen� ia �~��ct�e the bet^rrt. �i�t zs ga��i,� to che�k with location surveys to see if the .IS line is correctt �'��zzg �sugg�t�a' to pztt��z tail di��2 �on2 ��the pipe outleis to the creek with bank stabiliz�i,t'on. PSH 17 Y Permit Sit� $<� W o NRTR `'��and II o Impact due t� M�°: ■ Due to �� 561+55 RT WAQ 3 3 clearing being at top of slope, we don't expect clearing in wetland John mentioned how the wetland goes up the hill. HDR said they would leave it just to make sure it is covered. Dave asked John if inechanized clearing is considered a permanent impact, John responded that it is not considered a permanent impact if a restoration plan is in place. The final decision was to change to hand clearing since we do not expect any grubbing in that area. Vickie asked about the stand alone wetland WAQ. John mentioned that this sur-vey was done in 2005 and since nothing has really changed. The decision was made to go with what was originally shown. I-3802B 4C Meeting September 22, 2016 Page 5 Y Permit Site 9- Jurisdictional stream — 570+95 LT o Edit: Added energy dissipater box on outlet of supplemental pipe, and extended rip- rap in scour/embankment o NRTR Stream ID— SJA o Adding 48" trenchless to supplement the ex. 42" ■ The 48" trenchless will be installed 2' high� �or use during larger stortns o Ditch tie-in to JS bank due to removing hk��i��ing CMP and trenchless pipe installation o Scour hole stabilization at Ex. 42" RCP o�� `' ;,, Marla asked if the rip rap will remain beZow th� ��veg, and that it will be put in at the natural bed elevata� �� not just du Jim asked if the scour hole rip rap will be consid`�`�,d bank ��'��,ilization. , this case it will be considered an ir��a�zct but not a� �� ,� � would like bank stabilization in the impact she��, , _ `�� ,�,�,��' PSH 18 Y Permit Site 10 — o Edit: Im�� • �'�:�;�E o NRTR S� o Embankme No co��,��its at this Y Permi��'�ite 11 - ��c�ictional Sti�� tlet angl� the ec�� f wetlan Y,' n ID SJ;�, � ��?. rap �� , 24„ �? — 5'�7~#��fl �T � the ��' � to flow. HDR responded � stream. ss p��e �: no wetland impacts nd``4��? trenchless outlet AR �� anstruct the 48" trenchless pipe — 584+64 LT ded that in denoted as o NR x �tream ID -� ��B o Emban��nt ri r�or 18" CSP P ��Y, ■ Ask�t��e�� 1n the 4B meeting, the proposed 18" CSP pipe will be placed at # �;, an eI�`��;� � near to the natural bed elevation to avoid future erosion (Existing'pipe is perched approximately 4') No comments at this site PSH 19 Y Permit Site 12 - Wetlands — 592+50 RT o NRTR Wetland ID — WAV o Mechanized clearing in wetland WAV I-3802B 4C Meeting September 22, 2016 Page 6 o From discussion at 4B meeting, the proposed inlet pipe at 591+75 RT will be set at same elevation as the existing pipe to maintain the wetland o RSS(Reinforced Soil Stabilization) on west side of Daugherty Rd to avoid impacts to Cold Water Creek HDR to change rnechanized clearing to hand clearing Y Permit Site 13 — Jurisdictional Stream — 591+60 LT `` o Edit: Slight adjustment to PDE to contain all �truction o NRTR Stream ID — SJ �� o Removing concrete ditch and replacin��vi�i �base ci�� with rip rap o Embankment rip rap on bank of Cc��er Creek �� ,� No comments on this site Y Permit Site 14 — Jurisdictional ,Stream — o NRTR Stream ID — SJ` ;. o Embankment rip rap on'��`� 0 Dave asked if all of these ��ets were stt��iwa� inlets that we are repl��, � will be �� e� area. . ;:: PSH 20 Y ] CP No comments �"��as , Y Permit Si�� ,,a o Edit: IZ��'j o NRTR S o Embanlc� No comments on this site LT 42" RCp " . �ak of Coldwater Creek that these were all existing cts to hand clearing in this >nal stream — 614+40 LT � of 48" RCP due to structural deficiencies J/SJH on bank of Coldwater Creek PSH 21 Y Edit: Permit Site 16 — Jurisdictional Stream — 615+'70 RT o NRTR Stream ID — SJH o Temporary impacts due to pipe replacement at outlet end Marla asked if the stream to the side of the inlet was .75, HDR responded that it was not. I-3802B 4C Meeting September 22, 2016 Page 7 PSH 22 Y Permit Site 17 - Jurisdictional stream — 633+45 LT/RT o Edit: Added bank stabilization on inlet side of 30" RCP o Supplementing ex. 30" with a 24" at a higher elevation for larger storms o LT: NRTR Stream ID — SJ o RT: NRTR Stream ID- SJJ � � k � k o LT - Embankment rip rap at outlet of ex. 30" % �� RCP o RT — Embankment rip rap at ditch tie-in ��'�� No com�nents on this site Y Permit Site 18 - Jurisdictional stream o NRTR Stream ID — SJ o Embankment rip rap on bank of o RSS on Pine Ridge Rd; �.avoid No comments on this site PSH 23 Y Permit Site 1 o NRTR $� o Removi Coldv� No Y tSite20-Ji� o ��TR Stream �� hole stal No comments on ID � and LT with base ditch and embankment rip rap on � ��eam — 654+50 LT � �. with ��lass `I' rip rap PSH 24 � � �k�h� a%' �� Y Permit Site 21 - Jurisdictional stream — 663+65 RT o NRTR Stream ID — SKD o LT - 30" CSP pipe with BDO o RT - Bank stabilization on outlet side Y RSS on Lentz Rd. to avoid impacts to Cold Water Creek and SKE No comments on this site Y Permit Site 22 — Jurisdictional stream — 668+00 LT/RT I-3802B 4C Meeting September 22, 2016 Page 8 o Edit: Added energy dissipater box on 48" RCP and floodplain bench detail o NRTR Stream ID— SKF 0 48" trenchless pipe as a supplemental pipe at a higher elevation and retaining 72" pipe o RT - Floodplain bench for proposed 48" RCP with class `I' rip rap o LT — Embankment rip rap for ditch draining 18" CSP and 48" RCP discharge No comments on this site PSH 25 Y Permit Site 23 — Jurisdictional stream — 67 o NRTR Stream ID — SK �,�� ; o Removing concrete ditch and ad�� No comments on this site Y Permit Site 24 — Jurisdictio� o NRTR Stream ID — SK o Rip rap in existing ditch No comments on this Y Permit Site 2! o NRTR S the T ��'�� — 676+1 � �°� , . ��;�mb� � ` �nt rip r , stream -�.��'I+10 LT was rip ra��;;Coldwater Creek Coldwater Creek rip rap on Coldwater Creek responded that it was not PSH 27 z Y Quadrant sh •' were �� inated to avoid possible confusion. Sheets now go in order � ��.� according to Si� } � Y Permit Site 26 - J� ,'' ctional stream — 17+17 Y19RPB LT o NRTR Stream ID — SKI o Junction box to fix perched 24" RCP o Rip rap to stabilize banks of JS Marla asked if the flow would still be passing through the 60" as it currently is. HDR explained that the drop box will happen in the 24 " and the 60 " will stay the same as existing in the bed of the stream not restricting passage. Y Permit Site 27 - Jurisdictional stream — 42+88 Y19 LT I-3802B 4C Meeting September 22, 2016 Page 9 o NRTR Stream ID — SK 0 86 ft. extension of 7'x7' Single Barrel Cox Culvert Marla asked if a proper connection will be done at the culvert. Looking at the pictures, the outlet is currently slightly perched, the new culvert extension will be placed at the bed elevation to improve the outlet condition. Y Permit Site 28 - Jurisdictional stream — 22+50 Y19 �T o Edit: Drainage has been changed to dischar,� �€� �S at better angle o NRTR Stream ID — SKI �' 0 120 ft. extension of 60" RCP � o In the 4B set, a lateral ditch was .��.� `` to�the north'�� ?�he 60" extension. That is now a pre-formed scour hole tp �., c�'�d any additional irri� x from that dramage �� .Iames explained the drainage has been changed ��ntly to,�� with the �� ngle of drainage into the .IS, a JB now collects the w�t�r. Marla as�� would restra�� uatic passage, HDR responded that it would not, i� �� e placed at ��;stream elevation. Y Permit Site 29 — Jurisdictional ��am �-�3 �-�0 Y 19RP�. RT o NRTR Strea� �ll SK � � � � ° o Ri ra o� ��i.tch and e�i;i�ankm� '� on �ldwater Creek p p .� �� No comments on this PSH 28 Y $��ii�`'�`i�`e��urisd��al stre�� 30�� RT � ` o Edit: 36"4 '��chles� ��;s added �,�:� supplemental pipe. It will be installed at a � "kk: higher eleva��, k � �RTR Stream f� ��,- SKL o E�� d ex. 36" R4� on inlet'�nd outlet �, o Scoi��le stabiliz��in at the outlet o RSS to" ��id stre� �nd wetland impacts Marla asked about the 90 ��ee turn into the pipe. HDR explained that the existing flow will be �,�. maintained and the supplemental pipe will be installed a higher elevation. Marla mentioned that she was appreciative of the floodplain pipes. PSH 29 Y Permit Site 31- Jurisdictional stream — 741+50 LT o Edit: Detail added for daylight of stream o NRTR Stream ID — SKM o Removal of 36" CMP and replacing with lateral base ditch ■ Daylighting approximately 485' of stream I-3802B 4C Meeting September 22, 2016 Page 10 Marla asked if a natural channel design would be considered here, HDR stated that with the area being 30-40' deep a channel design wouldn't be feasible. Keith was asked if he had any input and he said �emove the pipe. PSH 30 Y Permit Site 32 - Wetland and Jurisdictional stream o NRTR Stream ID— SLA o NRTR Wetland ID - WBH o Extend 30" RCP and 30" trenchless i��t�11��io o As discussed in the 4B meeting, da�� will �.� will be placed between the inle� X�� outlet � Y30 RT the pipes and rip rap o Wetland is currently in the procex' � getting updated at tl�� ocation due recent to Hope Lane construction �� . ' = ,. ,, John mentioned that the impacts ha� ��ady been ac� €�t�ed for in the ongoang rail project in � the area. He directed HDR to not sho� th�� 1�pacts in the ��.: its and put a note that the impacts were in the previous project. HDR nien��ec��t`�t�'� ,kvill be a'�� ts for the supplemental pipe, so they will show only thoseh,�a�,�,there wall � t� note c��„to the X��, Y Permit Site �{ o Edit. AcI o NRTR S ��t�anal 30" t�:`t�chless pi�`4 re�� ;�P S�� .�. . 0" tr��l �� .�ion wi ��zatior� �� z�utlet of' �� 0' Marla as��' af the overfCo�� r f� supplemen�� f��ll be placed i �. areas due to t��l�ck of cover John mentioned Df��j �oes n will allow water to en�� sl the )`0 RT . ' _. to structurally deficient ex. 30" rap in ditch installed a higher elevation. HDR mentioned that the �gher elevation, but it will not be as much as in other open pipes. HDR explained that by having open pipes, this `hout needing an inlet. PSH 33 Y Permit Site 34 - Jurisdictional stream — 26+60 Y19 LT/RT o Edit: Re-aligned inlet of pipe to match up better with JS o NRTR Stream ID — SKO o RT - Extension of 30" RCP inlet o LT - Extension of 30" RCP outlet with drop box, bank stabilization at outlet No comments on this site I-3802B 4C Meeting September 22, 2016 Page 11 PSH 37 Y Permit Site 35 - Jurisdictional stream — 18+16 Y30 LT/RT o Edit: Cross pipe will be upsized to 36" and buried 6". Added temporary impact to the outlet of the pipe. o NRTR Stream ID— SKJA 0 30" RCP and bank stabilization with class `I' rip rap at outlet No comments on this site Y Permit Site 36 - Jurisdictional stream — 20+0(�;y�� o Edit: Adding 30" trenchless pipe due �• t' cturally��. �; cient ex. 30" o NRTR Stream ID — SKJ ��{ � :a, 0 30" RCP and bank stabilization ��'�� ass `I' rip rap at o oa�ao8�� o No comments on this site PSH 38 °�� Y Permit Site 37 — Jurisdictiona ,' �r ' . � ; a ,� ��;;; o NRTR Stream ID- SKN �� . �� o Scour hole st��ation witl��'��ss `I No comments on Y Permit Site 38 —°� dict� :° eam — 3� � 5 Y30 RT ovin� ' �� e to � g structurally deficient and replacing with �� rt }�his � � ��avli�ht�� e� �f stream. o NRTR Str`°'�' °° ';��D — �� ip rap at e� No comments ��Iiis site 4C Meeting Project Number I-3802B Date: September 22, 2016 Time: 1:15 pm Location: Structures Conf. 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