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Home My WebLink About19980260 Ver 3_R-2247EB 4C Meeting Minutes_20190617STU moo MEETING MINUTES DATE: May 15, 2019 CLIENT: NCDOT PROJECT: R-2247EB Winston-Salem Northern Beltway Interchange at US 52 (Future 1-74) MEETING LOCATION: NCDOT Structure Design Conference Room, Building A STARTING TIME: 8:30 am ENDING TIME: 11:30 am SUBJECT: 4C Merger Meeting Minutes Meeting Attendees Robert Patterson, NCDEQ-DWR Dave Wanucha, NCDEQ-DWR (via phone) Nicholle Braspennickx, USACE Marla Chambers, NCWRC Amy Euliss, NCDOT-Division DEO (via phone) Craig Lee, NCDOT-Hydraulics Michael Shumsky, NCDOT-Design Build Bill Barrett, NCDOT-EAU Jordan Scott — NCDOT - Resident Engineer Matt Adams, Blythe Construction Luca Pellegrini, Blythe Construction Richard Hiner, Wood PLC (via phone) Eddie Vance, STV Joseph Freeman, STV Mark Pugh, STV Michael Iagnocco, STV Josh Kotheimer, STV Note: Discussion and comments from meeting are in blue Proiect Limits • Project extended approximately 500 L.F. north along US 52 • EA/EB project limits shifted from the west side of NC-65 to the east side of NC-65 • EB project impacts includes work inside the EC limits due to project overlap • The permit mod for EB will cover the extension of pipe culverts and additional road work located within the overlap with the EC section. Site Overview • Duke Transmission Lines 900 WEST TRADE STREET, SUITE 715 AN EMPLOYEE -OWNED COMPANY PROVIDING OUALITYSERVICE SINCE 1912 I CHARLOTTE, NC 28202-1144 (704) 372-1885 FAH: (704) 372-3393 STV too • PNG Line • NS Railroad Right of Way • Grassy Creek — FEMA Regulated Stream • Project located within the Yadkin River Basin. There are no specific stormwater requirements. However, the Design -Build Team will provide stormwater treatment where there are opportunities • Identified two locations for stormwater basin • Culverts • 10 Large Culverts on the Project ■ Including 3 extensions ■ 2 replacements ■ 5 new crossings ■ 2 FEMA (Grassy Creek) • New double box culvert at Grassy Creek buried F below streambed w/ F flood bench • Sills not placed in existing culverts to maintain design capacity • Remaining culverts were not buried because of length and slope of barrel • Riprap pads will be flush with the streambed • 2 Small Pipe Culvert Extensions ■ Additional impacts to the R-2247EC Project Pipe Location Size and Material Impact Site Pipe Invert Burial Depth (feet) 2 @ 7'x7' RCBC 64+85 -L- (Extension) 1 0' 8'x7' RCBC (Ext.) w/ 77+07 -L- 60" Steel (Flood 4 0' bench pipe) 107+98 -L- 48" Steel 6 0' (Extension) 66' Steel 111+58 -L- (Extension) 7 0' 20+18 -RPB- 4'x5' RCBC lOC 0' 17+92 -LPB- 5'x5' RCBC l0E 0' 27+38-WBBYP- 6'x5' RCBC lOF 0' 12+01 7'x5' RCBC 10H 0' 169+98 -L- 8'x6 RCBC 14B 0' 186+91 -L- 2 @ 9'x9' RCBC 15A F w/ flood bench 2 @ 9'x9' RCBC 106+53 -Y68- 15G 0' (Extension) 19+90 -RPD- 7'x6' RCBC 16 0' Project Design • Project design speed increased to 70 mph • Avoidance and Minimization Lowered interchange to minimize Duke Power and NS Railroad conflicts ■ Reduced earthwork (million cubic yards of borrow to balanced on -site) ■ Eliminated a new continuous 1200' culvert (Ramps & Loop B) • Retained 350' open channel inside Loop B • Retained 100' minimum open channel between culverts Shifted Ramp DB and Loop D away from Grassy Creek ■ Eliminated Ramp DB crossing over Grassy Creek Reduced 1600' mainline culvert to 1200' • Added retaining walls along west side of US 52 to minimize PNG conflicts ■ Reduced stream impacts Discussion on method to distinguish new EB impacts from Drevious EC impacts • See examples of Permit Drawing Sheet 19 attached at end • Show overlapping impacts as depicted in the attachment. ■ If there is a change in impact type it should be shown with the new type of impact hatching overlapping with the impact previously shown on the 2247EC permit drawings. ■ On the impact summary sheet impact changes should be counted on separate lines and noted so that totals for mitigation can be properly accounted for. • General Comments SHT 4 • Breakout items on impact summary table to show specific type of impact such as inlet protection, outlet protection, channel relocation, culvert construction, etc. • Adjust labeling for impacts from R2247 EC being shown on all plan sheets. ■ Make sure all labels are properly grey scaled, and are discernable from each other when printed. ■ Place label beside impacts shown from R2247 EC ex. TS (EC). • Bank stabilization should be shown with a "S" callout and noted separately in the impact summary sheet. • If there is no significant realignment of the channel, at inlets and outlets of culverts impacts should be shown as bank stabilization. Site 1 — Beaver Dam Creek (QQQ) SHT 5 SHT 6 SHT 7 SHT 8 SHT 9 STV too • Impacts due to culvert extension upstream and channel change to mat new end of culvert • A retaining wall was added to avoid utility conflict on downstream end which reduced stream impacts • Sill have not been added to the existing culvert to meet design capacity Site 2 — Intermittent Stream (PPP) • Impacts due to roadway embankment Site 3 — UT to Beaver Dam Creek (000) • Impacts due to culvert extension upstream, channel change to match new end of culvert and riprap fill in channel • A retaining wall was added to avoid utility conflict on downstream end which reduced stream impacts • Flood bench will be constructed for supplemental 60" trenchless steel pipe Site 4 — Perennial Stream (UU) • Impacts due to roadway embankment No Jurisdictional Impacts Site 5 — Intermittent Stream (WWW) • Impacts due to 30" pipe and riprap outlet protection ■ 18" downstream of proposed channel and 30" pipe discussed, is located inside of the gas ROW and is used as a crossing for the maintenance road. Site 6 — Perennial Stream (TT) and Wetland (W49) • Tributary TT and W49 are additional impacted to EC Section (Site 1) • Additional impacts due to SB 52 split: roadway embankment and riprap outlet protection ■ Adjust visual and impact descriptions to bank stabilization as noted in general section. Site 7 — Perennial Stream (LLL) • Impacts due to 66" pipe and riprap outlet protection • Additional impacts to the EC Section (Site 2) ■ Additional impacts to the upstream section was avoided Site 8 — Intermittent Stream (SS) and Wetlands (W26 and W50) • Additional impacts to the EC Section (Sites 4, 5 & 6) • W26 is a total take as recommended at the 4b meeting Site 9 — Perennial Stream (III) and Wetland (W42) • No additional impacts to inlet end of culvert; EC Section (Site 7) • Additional impacts to outlet end of culvert; EC Section (Site 8) ■ Impacts due to NC-65 Ramp C, SB 52 and Beltway Ramp B Site 10 — Perennial Stream (VV) • Site l0A due to riprap fill • Site IOB is bank stabilization only ■ Adjust visual and impact descriptions to bank stabilization as noted in general section, add detail to plan sheet. • Site 1 OC is new box culvert with channel change and riprap fill at downstream end STV too Did not bury culvert, see the stream form attached Adjust visual and impact descriptions to bank stabilization as noted in general section. Dry Detention Basin • Detention basin located between mainline and north bound 52 to meet maximum extent practicable • Treats new pavement from mainline (Future I-74) and NB52 Site 13 — Perennial Stream (DDD) and Wetland (W30) • Wetland impacts due to roadway fill Stream impacts due to riprap outlet channel protection ■ Add grass symbols for wetlands, missing from WET file. Bill Barrett will address. SHT 10 • Site 10 — Perennial Stream (VV) • Site 1 OD is bank stabilization only • Sites IOE and IOF are new box culverts with channel change and riprap fill ■ Did not bury culvert, see the stream form attached ■ Site 1OF should also be bank stabilization, adjust visual and impact descriptions to bank stabilization as noted in general section. Dry Detention Basin • Detention basin located inside loop D to meet maximum extent practicable • Treats new pavement from NB52 and loop D Site 14 — Perennial Stream (WW) • Site impacts due to new box culvert and channel change ■ Did not bury culvert, total culvert length is approximately 1200' ■ Did not add a channel bench due to deep cut Site 15 — Perennial Stream - Grassy Creek (XX) • Site 15D impacts due to stream WW channel change and tie into Grassy Creek ■ Shift label over to the right of the match line to eliminate text conflicts and make it clear that the label is for the Grassy Creek impact on permit sheets. ■ Show where the tie in of the channel change and Grassy Creek meet to be bank stabilization, adjust visual and impact descriptions to bank stabilization as noted in general section. SHT 11 • Site 15 — Perennial Stream - Grassy Creek (XX) • Sites 15A & 15B impacts due to new double box culvert, channel change and bank stabilization ■ Culvert will be buried l' with 1' flood bench ■ Channel change will be riprap lined with Class I ■ Class Il riprap will be used on the low flow channel bank ■ Coir fiber matting will be used on the flood bench ■ Add sill callout on inlet/ outlet details. ■ Show inlet improvements on 9x9 as bank stabilization, adjust visual and impact descriptions to bank stabilization as noted in general section, add detail to plan sheet. Site 15C impact for bank stabilization at project outfall point a V too C�WUAI ■ Move label on permit sheets so that it does not conflict with t Vproposed ditch. ■ Remove ditch flow line shown on Site 15C.. • Site 16 — Perennial Stream (AAA) • Impacts due to new box culvert and riprap channel protection ■ Did not bury culvert; ties to relocated Grassy Creek SHT 12 • No Jurisdictional Impacts SHT 13 Site 10D — Perennial Stream (VV) • Site IOD is bank stabilization only ■ Matchline to Plan Sheet 10 (Permit Drawing Sheets 38 & 39) • Site 1 OG is bank stabilization only • Site 1 OH is a new culverts with channel change and riprap fill ■ Did not bury culvert, see the stream form attached • Don't use stream form as justification not to bury culvert. Culvert not buried due to discussion at 4B including culvert length, slope, rip rap in bed, etc. • Site 12A — Perennial Stream (RR) • Impacts due to roadway embankment and channel change • Site 11— Wetland (W43) • Impacts due to roadway embankment • Site 12B — Wetland (W34) • Impacts due to channel excavation • Add mechanical clearing for construction of channel change. SHT 14 • Site 15 — Perennial Stream - Grassy Creek (XX) • Sites 15E & 15F for bank stabilization only ■ Adjust visual and impact descriptions to bank stabilization as noted in general section. • Site 15G impacts due to culvert extension, channel change and riprap channel protection • Site 17 — Intermittent Stream (ZZ) and Wetland (W29) • Appears to be an abandoned stormwater basin which was discussed at the 4B meeting • Per an email from Joe Fogarty, PE (City of Winston-Salem), there is no record of a stormwater feature at this location; most likely an old sediment basin left in place after construction. • Show wetland as total take since area will be drained. Site 18 — Intermittent Stream (NNNN) • New trenchless 48" steel pipe replacing an existing 36" CMP • Tie to existing drainage system downstream • Adjust rip rap to better match stream. SHT 15 • Site 14 — Perennial Stream (WW) • Site impacts due to new culvert ■ Did not bury culvert, total culvert length is approximately 1200' SHT 16 • No Jurisdictional Impacts SHT 17 0 No Jurisdictional Impacts