20160299_CP 4C Meeting Minutes Sec 1A 2 3B 011416_20160127

Design Sections 1A, 2 and 3B
Concurrence Point 4C Meeting Minutes
Project: R-2536 (Asheboro Southern Bypass and Zoo Connector)
Date: January 14, 2016
Location: NCDOT Century Center — Hydraulic Design Conference Room
Time: 8:00 AM to 12:00 PM
Minutes Authored by: Jeff Meador, RK&K; Matt Cook, RK&K; Trent Cormier, ICA
Attendees: Jason Dilday — NCDOT NES
Michael Shumsky — NCDOT Design Build
Dave Wanucha — NCDENR DWR
Matt Lauffer — NCDOT Hydraulics
Mark Staley — NCDOT REU
John Partin — NCDOT Div 8
Reuben Blakley — NCDOT Div 8
Michael Abuya — NCDOT NCDOT Planning
Bill Elam — NCDOT Hydraulics
Craig Lee — NCDOT Hydraulics
Jake Stone — Wright Brothers Construction
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Bypass Canstructars LLaC' -
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Andrew Williams - USACE
Travis Wilson - NCWRC
Jason Elliot — NCDOT NES
Chris Rivenbark - NCDOT NES
Jim Eisenhardt — RK&K
Byron Holden — RK&K
Tina Swiezy — RK&K
Jeff Meador — RK&K
Matt Cook — RK&K
Trent Cormier — ICA Engineering
Eric Leonhart — ICA Engineering
An interagency concurrence meeting was held in order to reach agreement on concurrence points 4C for the US 64
Asheboro Bypass in Randolph County. The 4C review was completed for design sections lA (9+00 to 65+00), 2(210+00
to 465+00) and 3B (Station 668+00 to 770+00). The following items were discussed and conclusions reached:
Matt Lauffer began the meeting with a brief overview of the project and introductions were made. Matt Cook provided a
summary of the design sections, the 4B/4C schedule and the project wide decisions that had been made in previous 4B/4C
meetings. These decisions include:
• The Top of Bank lie shown on the 4C drawings will be removed
• Pipe sills will be used at the inlet end of all pipes that are to be buried to prevent headcutting
• Pipes on intermittent streams will not be buried and will be labeled as "not buried" on the plans
• The lengths of pipes/culverts will be shown on the pipe/culvert profiles in the permit drawings
Trent Cormier (Section 3B), Matt Cook (Section 2) and Jeff Meadar (Section 1 A) provided a summary of the design at
each jurisdictional feature on the plans. The following comments and decisions were reached.
Design Section 3B
Plan Sheet 50 (Streams SX-C and SY-C, and Wetlands WK-C and WL-C): Stream SX-C is perennial. Stream SX-C is
conveyed through the project by a 60" RCP-III, at a 3.28% grade, and is buried 1'. The proposed crossing is in line with
the incoming and receiving channels, therefore no channel changes are required. The banks of the outlet of the 60" RCP
are lined with CL I rip-rap for approximately 20', resulting in permanent stream impacts. The current design utilizes a
junction box including a drop in order to reduce velocities into the natural stream channel. Stream impacts were extended
between the end of the rip-rap lined banlcs and the lateral base ditch downstream. Downstream of the 60" RCP, a lateral
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base ditch drains into SX-C and includes a jurisdictional rip-rap transition pad, which requires permanent impacts. Stream
SY-C is intermittent. Stream SY-C is to the east project area and has no impacts associated with it. Wetland WK-C is
located underneath the proposed roadway and altered by a lateral base ditch and is permitted as a total take. Wetland WL-
C is beneath roadway fill and there are permanent and temporary impacts associated with it. A lateral base ditch dissipates
into WL-C and velocities are non-erosive and less than 2A fps.
Plan Sheet 51 (Streams SX-C): Downstream of the 60" RCP, a lateral base ditch drains into SX-C and includes a
jurisdictional rip-rap transition pad, which requires permanent impacts. Impacts have been extended per request so there is
no gap between impact sites.
Plan Sheet 52 (Stream SNN-C, SCC/SEE-C and SDD-C, and Wetlands WP-C, WQ-C, WY-C and WZ-C): Stream
SNN-C is Gabriels Creek and crosses this site in a 2@ 10'x8' RCBC at 0.78% grade. The east barrel is the low flow barrel
and is buried 1' with 1' sills inset 1' from the inlet and outlet of the culvert and are to be constructed parallel to the culvert
face. The high flow barrel with have 2' sills and are to be inset 1' from ihe inlet and outlet and constructed parallel to the
culvert face. The incoming and receiving channels are approximately 11' at the base. The inlet requires 40' of channel
improvements and the outlet requires 55' of improvements. Native material is to be utilized for backfill with priority given
to the low flow barrel. Stream SCC/SEE-C is conveyed through the site via a 6'x7' RCBC at a 2.76% grade. 1' sills are
utilized within the culvert and inset 1' from the inlet and outlet face of the culvert. Native material is to be utilized for
backfill. 22' of channel improvements are required on the upstream side of the culvert while the downstream side requires
30' of channel improvements. Stream SDD-C merges with stream SCGSEE-C befare the right-of-way and requires no
impacts. Wetland WZ-C is located completely beneath roadway fill and is permitted at a total take. Wetlands WP-C, WQ-
C and WY-C are located outside of construction limits and require no permitting impacts.
Plan Sheet 53 (Streams SNN-C and SCC/SEE-C, and Wetlands WAA-C, WX-C, WW-C, WV-C, WU-C and WTA-
C): Stream SNN-C is Gabriels Creek and has multiple impacts on this sheet. The single span bridge on -ESRS- is proposed
to be removed, which resulted in both temporary and permanent impacts from excavating the existing roadway to natural
ground ai this location and showing impacis if bank stabilization the eastern side of the bridge is required. It was
mentioned during the meeting to be sure the "Remove Bridge" note is visible in all drawings. The impacts under the
existing bridge are reflected as permanent bank stabilization impacts, but bank stabilization is not shown on the plans and
is to only be used if field conditions warrant. Stream SCC/SEE-C does not have any impacts within this plan sheet. At
41+00 -Y17- LT, SNN-C is impacted by a standard 3' base grassed swale. A jurisdictional rip-rap transition pad is used to
dissipate velocities prior to its outfall into SNN-C, resulting in both permanent and temporary impacts. SNN-C is
impacted by a standard 3' base ditch at approximately 44+50 —Y17- LT. Prior to its outfall into SNN-C, the base ditch has
a jurisdictional rip-rap transition pad, resulting in both temporary and permanent impacts at this location. SNN-C is
conveyed under -Y17FLY- via a 2@ 12'x8' RCBC at 0.58% grade. The west barrel is the low flow barrel and is buried 1'
with 1' sills inset 1' from the inlet and outlet of the culvert and are to be constructed parallel to the culvert face. The east
barrel is designated as the high flow barrel and has 2' sills which are to be inset 1' from the inlet and outlet of the culvert
and to be constructed parallel to the culvert face. The inlet and outlet of the culvert require channel improvements of 40'
on each respective side. Native material is to be utilized for backfill with priority given to the low flow barrel. The existing
channel is approximately 8' at its base. The 2:1 sideslopes of the inlet and outlet channels are to be lined with CL II rip-rap
and the proposed channel changes are lined with coir fiber matting and geotextile. Immediately downstream of the culvert,
a 4' lateral base ditch is constructed and lined with CL B rip-rap flowing from the west side of the culvert, resulting in
permanent stream impacts. Also immediately downstream of the culvert, a 5' lateral base ditch is constructed on the east
side of the culvert and outlets water into SNN-C. A jurisdictional rip-rap transition pad is installed to reduce velocities,
resulting in permanent impacts. Wetland WAA-C is impacted by roadway fill and excavation in the project area. Both
temporary and permanent impacts have been accounted for on -Y17RPDA- and -ESRS-. Wetland WV-C is permitted as a
total take due to the majority of it being impacted by construction limits and roadway fill. Wetland WU-C is impacted
based on the proposed plans. Wetland WW-C is impacted based on utility construction, 12" water line, and the outlet of a
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15" CSP onto a rip-rap pad within the wetland boundary. The water lines are turned on within the permit drawings and
roadway plans. The installation is currently shown as temporary fll within the wetlands as opposed to excavation in
wetlands. Velocities entering the wetland are non-erosive and less than 2A fps. Both temporary and permanent impacts
have been implemented at this location. Furthermore, at approximately 44+50 -Y17- RT, wetland WW-C is impacted by
the construction of a 3' standard base ditch and berm, requiring both temporary and permanent impacts. Additionally,
another 12" water line is constructed at this same location. This construction requires both temporary and permanent
wetland impacts. Wetland WTA-C is impacted by the construction of a 3' standard base ditch within the wetland boundary
at 44+50 -Y 17- LT resulting in both temporary and permanent impacts. A bore hole also requires temporary permitting at
this same location. Area will be allotted on both sides of the standard base ditch in order to place the bore and jack. Per
contractor request, a 40' width of impacts has been provided. As discussed in the meeting, hand clearing will be used
within this wetland area as opposed to mechanized clearing. A rip-rap pad is to be installed at 45+00 -Y17- LT within the
wetland boundary, requiring both temporary and permanent impacts. The velocities entering the wetland will be non-
erosive and less than 2.0 fps. In our current design, a rip-rap pad will be installed at 46+75 -Y17- LT and will encroach
within the wetland boundaries. Velocities entering the wetland will be non-erosive and less than 2.0 fps. It was suggested
during the meeting to remove the rip-rap pad and eliminate this impact site. Wetland WTA-C will also be impacted along -
Y17FLY- at STA. 48+00 RT by roadway fill. Both temporary and permanent impacts are necessary in this location.
Plan Sheet 54 (Streams SMM-C, SFF-C and SKK-C): Stream SFF/SKK-C is intermittent. Stream SFF-C is conveyed
through the project via a storm drainage system and outlet into Stream SKK-C. The water enters the system through a 36"
RCP-III and transitions through a junction box befare entering a 36" RCP-III before entering a 40TCB. From then the
water is conveyed into a 36" RCP-III, enters another junction box, then another before being outlet into SKK-C. Both the
inlet and outlet sections have permanent and temporary impacts, but neither requires channel changes due to the base of
each channel being approximately 3' wide. The banks at the outlet of the system are to be lined with approximately 12' of
CL I rip-rap, resulting in permanent stream impacts. There are temporary impacts on the inlet side of SFF-C due to the
installation of a water line. During the meeting, it was discussed that a JS transition pad was shown at this location,
causing permanent impacts, but the grade of the ditch does not require a JS transition pad, therefore the stream impacts
have been changed from permanent io temporary to account for the water line installation. Stream SMM-C is intermittent.
Stream SMM-C begins beneath the proposed roadway fill and requires a channel change. Drainage from roadway is
conveyed into SMM-C via a standard base ditch, requiring permanent and temporary impacts. Both SFF/SKK-C and
SMM-C temporary impacts were extended to the TDE line per request. Current plans showed a JS connecting the
SFF/SKK-C and SMM-C, but upon further inspection of the wetland file and the NRTR, it was concluded that the
connection was not a JS, therefore, the line style has been changed in the survey file.
Plan Sheet 55 (Streams SGGC and SHH-C, and Wetland WT-C): Stream SGG-C requires a channel change due to
roadway fill and excavation interfering with its normal flow pattern. SGG-C is diverted into a 4' lateral base ditch and is
tied into the natural channel downstream. This channel change results in both permanent and temporary impacts at this
location. Stream SHH-C is outside the right-of-way and no impacts are anticipated. Weiland WT-C is partially eneroached
by roadway iill, therefore there is a small portion of the wetland that is permitted as fill and another small portion
permitted as mechanized clearing. It was requested that the mechanized clearing impacts be stretched to the easement at
this location.
Plan Sheet 56A (Streams SJJ-C, SII-C and SZZ-C, and Wetlands WSA-C, WR-C and WS-C): Streams SZZ-C and
SII-C are located within the right-of-way, but no changes to the existing roadway are anticipated other than mill and filling
in this project location. Stream SJJ-C is located outside of the right-of-way and no impacts are anticipated. Wetland WSA-
C is located within the right-of-way, but no changes to the existing roadway are anticipated other than mill and filling in
this project location. Wetlands WR-C and WS-C are located outside of the right-of-way and no impacts are anticipated.
Plan Sheet 100 (Stream SAA-C): Stream SAA-C is located outside of the right-of-way and no impacts are anticipated.
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Plan Sheet 102 (Streams SAA-C, SBB-C and SNN-C, and Wetland WM-C): Stream SAA-C is impacted due to the
outlet of a standard 4' base ditch lined with rip-rap, resulting in both temporary and permanent impacts. SBB-C is
conveyed through the project via a 30" RCP-III. The 30" RCP is routed through a junction box before being outlet back
into the natural channel for SBB-C. There are no channel changes in this location due to the 2' channel being able to
accommodate the proposed pipe. The banks at the outlet is lined with CL I rip-rap, resulting in permanent impacts. Stream
SNN-C is impacted in this project location due to a 2' standard base ditch tying into the stream. A CL I rip-rap
embankment is used to tie the ditch to the stream, resulting in both permanent and temporary stream impacts. Wetland
WM-C is outside of the right-of-way and no impacts are anticipated. The Army Corps of Engineers will investigate the
addition of the pond by the homeowner along -Y17A-. It was decided during the meeting to show the pond on a dashed
layer and not incorporate it as a Jurisdictional feature nor show any impacts. It was also decided that the hydrology in this
area is to be returned to its original conditions, therefore, drainage and impacts are to remain the same as previously
shown.
Design Section 2
Plan Sheet 19 (Stream SC-AB and Wetland WF-AB): Stream SC-AB will be temporarily impacted so that an existing
24" RCP can be removed at —L- STA. 233 �-00 LT. The existing pipe will be replaced with a channel that matches the
existing stream. The wetland will be impacted by the roadway facility but not considered a total take since it is fed by SC-
AB.
Plan Sheet 20 (Streams SA-AB and SB-AB, Wetlands WA-AB, WB-AB, WC-AB, WD-AB, WE-AB and WF-AB,
Pond PA-AB): Pond PA-AB, Wetland WA-AB, WB-AB, WC-AB, WD-AB and WE-AB will be total takes due to
roadway fill. The existing pond will have a conveyance running on each side of the roadway fill with both running in a
riprap lined channel. The riprap channel on the left will be directed into a 48" RCP that crosses the —L- alignment and ties
to stream SB-AB. The riprap channel on the right runs along the fill slope and ties to stream SB-AB at the same location
of the 48" RCP outlet. The 48" RCP will not be buried at either end due to the proposed riprap lined ditches that tie to the
pipe. Wetland WF-AB will not be a total take since SC-AB will still feed the wetland. Mr. Cook reiterated that from the
4B meeting. It was decided not to split the flow on both sides of the roadway. The pond impact hatching will be changed
from fill in surface water to impacts in surface water (pond) which is shown with a"P".
Plan Sheet 21 (Streams Littler River and SA-AB, Wetlands WM-AB and WN-AB: Little River will be bridged with
56" MBT concrete girder dual bridges at —L- STA. 252+50. The bridges are 198'-4" in length. There will be impacts to
Little River with rip rap transitions being installed at the ends of lateral ditches that tie into Little River. WN-AB will be a
total take due to roadway iill and the new bridge. WM-AB will be impacted due to the roadway footprint and due to a
temporary haul road needed for bridge construction. Mr. Cook stated that per guidance from the Division mechanized
clearing will be used under and around the bridge instead of hand clearing. Asheboro Bypass Constructors will also use a
temporary bridge crossing over the Little River for roadway construction. The temporary road and bridge will be shown
on the permit drawings. The impacts to the wetland will be considered temporary wetland impact, and there are no
anticipated stream impacts due to the temporary bridge. An additional impact will be made on SA-AB at —L- 247+50 RT
due to the standard V ditch tying in. This will include permanent and temporary stream impacts.
Plan Sheet 22 (Stream SR-B): SR-B starts on plan sheet 23 and flows onto plan sheet 22. It starts under —Y4RPB-,
flows under —L-, and outlets the project in a 48" RCP at the fill slope of —Y4RPC-. The 48" RCP will not be buried in the
channel since the stream does not become jurisdictional until it outlets the system.
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Plan Sheet 23 (Streams SR-B, SWW-B, SW-B and SZ-B): SR-B flows onto plan sheet 22. It starts under —Y4RPB-,
flows under —L-, and outlets the project in a 48" RCP at the fill slope of —Y4RPC-. The 48" RCP will not be buried in the
channel since the stream does not become jurisdictional until it outlets the system. SWW-B starts under —Y4LPD- and
exits at the fill slope of —Y4LPD-. A 30" RCP outlets into SWW-B and is not buried in the channel since ii does noi
become jurisdictional until it outlets the pipe. SW-B, starts off the project and ties into a rip rap channel that runs down
the fill slope of—Y4RPA- and ties in to SZ-B that flows through a double barrel7'x7' RCBC with a 2' sill in the high-flow
barrel and a 1' sill with 6" baffles in the low-flow barrel. A sill and baffle detail will be added to the RCBC profile sheet.
Plan sheet 26 (Streams SBB-B and SCC-B, Wetland WP-B): Stream SBB-B is conveyed across the project with a 66"
RCP that is buried 1.0'. It was discussed that since the stream is intermittent, the pipe does not need to be buried. It will
be revised to 60' RCP and the profile sheet updated as well. WP-B will be partially impacted by the roadway fill. SCC-B
becomes jurisdictional at —L- 337+50 LT under the roadway footprint. It will be conveyed by a 30" RCP that is not buried
since the stream begins under the roadway footprint.
Plan Sheet 27 (Stream SDD-B): SDD-B enters the project near matchline —L- 354+00 on this sheet. See Sheet 28 for a
description of the impact.
Plan Sheet 28 (Streams SDD-B, SEE-B, SGG-B and SHH-B): SDD-B enters the project near matchline —L- 354+00 on
this sheet. It is conveyed across the project with a 54" RCP that is buried 0.9' (20% of the opening). Although the stream
is perennial, it was discussed that the pipe would not need to be buried due to its length (440') and slope (4.4%). The pipe
will be revised to a 48" RCP. SEE-B is conveyed across the project with a 54" RCP that is buried 0.9' (20% of the
opening). Although the stream is perennial, it was discussed that the pipe would not need io be buried due to its length
(383'). The pipe will be revised to a 48" RCP. He stated he would check with Travis Wilson, Wildlife Resource
Commission, if these revisions were acceptable, as well as other locations with similar characteristics. SHH-B is conveyed
across the project with a 6'x7' RCBC that is buried 1.0'. SGG-B enters SHH-B under the roadway filL It is conveyed
along sheet 28 and 29 in a riprap lined channel and a 30" CSP. SEE-B, SHH-B, and SGG-B all feed SFF-B. SFF-B is not
impacted by the project.
Plan Sheet 29 (Stream SGG-B): SGG-B begins under the roadway fill at —L- 369+00 RT. It continues on to sheet 28
and enters SHH-B under the roadway fill. It is conveyed along sheet 28 and 29 in a riprap lined channel and a 30" CSP.
Plan Sheet 30 (Streams SQQ-B and SII-B, Wetland WTT-B and WU-B): SQQ-B will be impacted by construction of
the roadway fill at —Y9FLY- 11+50 LT and also by a ditch tying roadway drainage to it. It does not need to be conveyed
around / through the project; it continues to head north away from the project. WTT-B is a total take under the roadway
footprint and due to construction. Mr. Wanucha asked if there are other options without riprap that we could use to convey
the drainage in the ditch from the 24" RCP to stream SQQ-B. Mr. Cook stated that there are step pools or lowering the
24" RCP outlet elevation so that the ditch slope would not require riprap, however each would require greater amounts of
cutting and possible additional impacts due to the close proximity to the portion of SQQ-B running parallel to the ditch.
Mr. Lauffer pointed out that we are achieving some open channel grass lined ditch flow on the opposite side of—Y9FLY-.
SII-B is not impacted in the gare area near —L- 406+00 RT until it hits the iill slope at —L- 407+00 RT. It will be described
on sheet 31.
Plan Sheet 31 (Stream SII-B, Wetland WU-B): SII-B runs through the interchange gore area and begins being impacted
near matchline —L- 407+00 on this sheet. It is conveyed across the project with a 6'xT RCBC that is buried 1.0'. A
channel is used to tie the RCBC outlet to the stream at —L- 409+00 LT. This will be an excavation in wetlands (WU-B).
WU-B is impacted by the roadway footprint but is not a total take. SKK-B is not impacted by the channel leaving the
RCBC. Craig Lee asked that additional riprap be added to the channel tie at the inlet end to meet the temporary stream
impact shape or that the shape be sifted to the end of the riprap tie-in.
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Plan Sheet 33 (Streams SKK-B, SLL-B and SNN-B, Wetlands WOO-B and WPP-B): SKK-B runs through the
project and is Tantraugh Branch. It is conveyed in a 3@9'xT RCBC with outside cells using 2' si11s for high flow and a
third cell using a 1' sill and 6" baffles for low flow. SNN-B is impacted by the RCBC tie-in upstream to SKK-B. SLL-B
is impacted by the addition of 2 30" RCPs under —Y10 END-. The remainder of SLL-B is being conveyed in a 48" RCP to
limit impacts that would occur to SNN-B and WNN-B if it was ditched along the fill slope. WOO-B and WPP-B are total
takes under the roadway footprint. A sill and baffle detail will be added to the RCBC profile sheet.
Plan Sheet 34 (Stream SB-C, Ponds PG-B and PH-B): PG-B is a total take since it is inside the NCDOT right-of-way.
SB-C will be impacted with a temporary impact due to a ditch connecting it to a 48" RCP. PH-B will be a total talce. The
pond impact hatching will be changed from fi11 in surface water to impacts in surface water (pond) which is shown with a
«P„
Plan Sheet 35 (Stream SC-C, Pond PH-B): PH-B will be a total take. SA-C and SB-C from sheet 34 are conveyed
across the project in a 54" RCP that is buried 0.9' (20% of the opening). Although the stream is perennial, it was
discussed that the pipe would not need to be buried due to its length (390') and slope (3.3%). The pipe will be revised to a
48" RCP. It will tie to SGC. The pond impact hatching will be changed from iill in surface water to impacts in surface
water (pond) which is shown with a"P". Mr. Cook stated that SD-C on this sheet is considered part of the project's
Seciion 3A and was covered in a previous 4C meeting (December 16, 2015).
Plan Sheet 70 (Stream SS-B): Stream SS-B becomes jurisdictional as it leaves an existing 24" RCP at —Y4RPB- 31+50
LT. It is picked up in a 30" pipe extended beyond the existing 24" RCP with a junction box. It outlets to the gore area and
then enters a 36" RCP to be conveyed under —SERRD3-. It is not buried since the stream begins under the roadway
footprint. A stormwater retention pond is located adjacent to the stream but does not impact it. The stormwater
management pond will be labeled on the iinal permit drawing.
Plan Sheet 71 (Streams ST-B): ST-B was originally shown in the wetland file provided to the team as only a short
portion of stream at —Y- 73+00 RT and also on the next sheet at —Y4- 77+00 LT. After reviewing the stream in the 4B
field meeting, it was determined that the portion of the stream parallel to the road (both sides) should not have been
excluded from the jurisdictional iile. They will be considered jurisdictionaL The existing 36" RCP will be extended on
both ends to allow the stream to continue. It will be conveyed in a riprap lined channel upstream and downstream (sheet
72). The riprap was necessary for stability due to the steep existing contours in the area.
Plan Sheet 72 (Streams ST-B, SU-B and SV-B): For ST-B, see sheet 71. SV-B and SU-B enter an existing 4'x5' RCBC
at —Y4- 80+50 RT. The RCBC will be extended on both ends to continue to allow stream passage. The RCBC will not be
buried.
Plan Sheet 75 (Streams SAA-B and SWW-B, Wetland WXX-B): SAA-B is conveyed under —YS- with a 3@10'xT
RCBC with outside cells using 3.0' sills for high flow, and the inside cell using a 1.0' sill and 1.0' baffles for low flow.
SWW-B feeds SAA-B and ties in to it under the roadway footprint. SWW-B is conveyed ditch that continues ties to SAA-
B just beyond the RCBC tie-in. This was determined to be the best design after the 4B field review. WXX-B will be
impacted due to the roadway footprint. Mr. Lee asked that the hatching far the excavation in wetland be checked for the
correct scale. A sill and baffle detail will be added to the RCBC profile sheet.
Plan Sheet 76-78: No jurisdictional features.
Plan Sheet 79: No jurisdictional features anticipated, however the D-B Team is awaiting additional survey to complete the
design.
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(P 4C Meeting far Sections IA, 2, 3B I 7
Plan Sheet 80 (Stream SKK-D): SKK-D is conveyed under the existing NC 159, Zoo Parkway. —Y9A- does not impact
SKK-D. However, due to the alignment of—Y9A-, a new 36" RCP must be installed to take the drainage from one side of
existing NC 159 to the other. Tying the 36" RCP to SKK-D will cause an impact. Additional retain / remove notes will be
added to the drainage file to prevent confusion.
Plan Sheet 82 (Pond PA-D): PA-D is inside the right-of-way far the project. It will be drained and ditched in a riprap
lined ditch along the toe of the fill slope to a 48" RCP at —Y9- 15+00 LT. The entire pond will be placed in TDE to allow
for it to be cleaned out if needed during construction. The pond impact hatching will be changed from fill in surface water
to impacts in surface water (pond) which is shown with a"P". Mr. Wanucha asked about the aquatic life that will be
impacted. Mr. Cook stated that no aquatic life will be moved from the pond to other locations.
Plan Sheet 83 (Stream SH-D, Wetland WZZ-D): SHH-D becomes jurisdictional under the roadway footprint. It is fed
by ihe pond on sheet 82 (PA-D). The pond will be drained and ditched in a riprap lined ditch along the toe of the fill slope
to a 48" RCP at —Y9- 15+00 LT. The 48" RCP is not buried due to SH-D not being jurisdictional upstream of the project
and the pond flow being conveyed in a riprap lined ditch. The JS label will be checked to make sure the beginning of
stream call is shown at the correct location. WZZ-D will be impacted by mechanized clearing.
Plan Sheet 84 (Stream SG-D): SG-D is North Prong Richland Creek and is a FEMA regulated stream. It is conveyed in
a 2@14'x10' RCBC with one cell using a 1' sill and 6" baffles for the low flow and the other cell using a 2' sill for the
high flow. The wetland upstream of the RCBC is not named and will not be impacted. A sill and baffle detail will be
added to the RCBC profile sheet. The right of way will be checked to see if the TDE can be moved outside the wetland.
Plan Sheet 86 (Stream SF-D, Wetlands WD-D and WE-D): WD-B will be a total take under the roadway footprint.
Although WE-D would not be impacted, however it was decided during 4B to consider it a total take due to possible
drawdown affects and construction affects. SF-D is conveyed across —Y9- in a 42" RCP buried 0.7'. It was discussed that
since the stream is intermittent, �he pipe does not need to be buried. It will be revised to 36' RCP.
Plan Sheet 87 (Stream SC/SD-D): SGSD-D is conveyed across the project with a 6'xT RCBC buried 1.0'. Tina Swiezy
suggested tying the outlet channel in to the existing stream beyond the bend where it ties now.
Plan Sheet 88 (Stream SC/SD-D): A more free-flowing natural stream design will be utilized to convey SGSD-D across
the existing zoo entrance. The existing pipes will be removed and the new channel installed with a more sinuous design as
shown. The systems in the round-about and -NC159_SPUR- outlet to a single point at the new channel tie-in to the
existing channel.
Design Section lA
Plan Sheet 4(Stream SB-AA): Stream SB-AA is intermittent. Jeff Meadar noted that this site has changed since it was
presented at the December 4B meeting. The updated design was presented to the attendees. A driveway/service road is
being added at this location which will result in the extension of the existing 4'x4' RCBC on the upstream end. The
stream will also require some channel relocation at this area as a portion of it will be under the proposed roadway fill. The
culvert extension will not be buried since the existing culvert under US64 is not buried. Wetland WA-AA will not be
impacted.
Plan Sheet 6(Stream SD-AA, Wetlands WYZ-AA, WXX-AA, Pond PA-AA): Stream SD-AA is intermittent. The 48"
RCP under SR1 will not be buried. The outlets of the 30" RCP and the 18" RCP were spread apart to aid in
TIP No. R-253G: US G4 Asheboro Southern Bypass and Zoo Connector ��
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CP 4C Meeting for Seckions IA, 7„ 3� I 8
constructability per comments received at the 4B meeting. Wetlands WYZ-AA and WXX-AA are under ihe proposed
roadway fill and will both be total takes. Pond PA-AA will also be a total take.
Plan Sheet 7(Stream SAA-AA, Wetland WB-AA): Stream SAA-AA is intermittent. Stream SAA-AA begins under the
proposed roadway iill. A 36" pipe which will not be buried ties into Stream SAA-AA and bank stabilization is utilized at
the pipe outlet. The bank stabilization will be constructed within 10' of wetland WB-AA and mechanized clearing is
shown to allow construction of the bank stabilization.
Plan Sheet 7(Stream SE-AA): Stream SE-AA is intermittent/perennial. Jason Dilday noted that the location of the
transition to perennial had been found and this location will be shown on the permit drawing. An existing 36" RCP under
existing US 64 will be extended on the upstream end utilizing a junction box. The downstream end utilizes a collar and
extend. Rip rap bank stabilization has been added to the section of stream inside the proposed loop as requested during the
4B meeting. The 54" RCP under Loop D/FLY will not be buried. There will be an impact at -L- 63+00 right to tie in the
18" pipe outlet to the stream and stabilize the tie in. At -L- Sta. 65+00 right stream SE-AA flows under the proposed
roadway will. A channel relocation will be constructed that carries stream SE-AA to the tie in with Stream SG-AA shown
on plan sheet 8.
Plan Sheet 7(Stream SM-AA): Stream SM-AA is intermittent. Stream SM-AA will be relocated into a rip rap channel
to flow into a 36" CSP at -L- 16+00 LT. The chevron pattern for the proposed ditch at 13+SO left will be corrected to
shown the correct flow direction.
Plan Sheet 7(Stream SZZ-AA, Wetland WUU-AA): Stream SZ-AA is intermittent stream. SZ-AA begins within the
interchange and is permitted as a surface water impact from its beginning. The 36" RCP under -FLY- will not be buried.
Fill from the proposed roadway -FLY- will be permitted as fill in wetlands in wetland WUU-AA. Mechanized clearing is
also provided to construct the bank stabilization at the outlet of the pipe. A grass lined channel change is to be constructed
at Stream SZZ-AA where the roadway fill from the -L- alignment covers the existing channel.
Plan Sheet 8(Stream SG-AA): Stream SG-AA is the named Perennial stream Cable Creek. 2@ 8'x8' RCBC will be
constructed to carry the flow under the -L- alignment. The low flow barrel will have alternating baffles constructed in it.
A stream relocation will be constructed at the outlet end of the culvert to tie in with Stream SG-AA at —L- 70+90 RT.
Plan Sheet 58 (Stream SGAA, SH-AA, SZZ-AA): Stream SG-AA is the upstream end of Cable Creek. Bank
stabilization will be provided to direct the flow into the 2@ 8'x8' RCBC. Stream SZZ-AA is intermittent. Stream SZZ-
AA will be relocated to enter a 54" pipe (not buried) that flows into the 2@8'x8' RCBC. Stream SH-AA is intermittent. A
channel change will be constructed to direct Stream SH-AA into the same 54" pipe as SZZ-AA. Stream SH-AA flows
under US 64 in an existing 30" RCP. This pipe will be extended on the upstream and downstream end utilizing junction
boxes.
Plan Sheet 59 (Stream SK-AA, Wetland WD-AA): Stream SK-AA is perennial. Stream SK-AA will be relocated in a
channel change due to the roadway fill covering the existing stream. Bank stabilization will be utilized at the stream tie
ins. Wetland WD-AA is a total take due to the roadway fill covering it. Matt Lauffer requested that the storm drain pipes
coming into the stream from the roadway above be realigned to provide a better flow angle relative to the stream.
Plan Sheet 60 (Wetland WE-AA): Wetland WE-AA is a total take due to the roadway fill covering it. Stabilization will
be provided adjacent to the wetland at the inlet end of the existing 36" CMP. The 36" CMP will be retained to hold grade.
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CP 4C MeetinQ for iections I�, ), 3E ' 9
Other Discussion
General Comments to be applied to all sites are as follows. Andy requested more detail on the impact summary tables.
The length of pipes/culverts will be noted on the table and total takes will also be noted. If a site includes utility impacts it
should be noted on the table. Pond impacts should be shown as Pond Impacts P on the permit sheets. This was incorrectly
noted in the December interagency meeting minutes. Coordination needs to be held between the designers and the
contractor to make sure no water is impounded on the upstream side of any crossings. If a crossing is buried, the stream
bottom should still meet at an elevation that does not block flow for pipes and the low flow cells of RCBCs.
Due to heavy amounts of rock in the area, the Team discussed the possibility of not burying pipes that need to be buried if
it is determined in the field that rock would protect against the possibility of scour / headcutting. Coordination would need
to occur between the contractor and the agencies for approval and field review. Mr. Williams stated that he would
investigate further the option to add verbiage to the permit to allow for this issue.
Tina Swiezy wrapped up the meeting and noted that the permit application will be submitted to NCDOT for review during
the first week in February. The permit is expected to be submitted to the agencies during the first week of March. Matt
Lauffer will follow up with Travis Wilson to ensure that we are being consistent with his expectations on burying pipes.
Jim Eisenhardt confirmed that no additional field reviews are needed for the project. Jason Dilday and Andy Williams are
going to visit the project to confirm mitigation ratios for the project. These ratios will be provided to the team. The team
noted that the permit application could be reviewed by NCDOT if this infarmation is not complete yet and the mitigation
ratios could be updated during the NCDOT review.
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TIP No. R-253G: US G4 Asheboro Southern Bypass and Zoo Connector � J
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