20211119 Ver 1_More Info Received_20211026

Strickland, Bev
From: Shannon Tate <[e-mail]>
Sent: Tuesday, October 26, 2021 12:30 PM
To: Chris Huysman; Fuemmeler, Amanda J CIV (USA)
Cc: Homewood, Sue
Subject: [External] RE: Sparta Sewer Repairs Call
Attachments: Phase 2 Sheet C902.pdf; Phase 2 Sheet C802.pdf
Follow Up Flag: Follow up
Flag Status: Flagged
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Chris/Amanda —
Thank you for speaking while I was out Friday to help answer some of the wetland questions.
We do have the typical for the vegetated streambank restoration provided on Plan Sheet C902 with the E&S notes and
details.
We also have the seeding mixture listed on the same Plan Sheet C902 as discussed with Tamera Eplin for the Trout
Buffer and Riparian areas.
The stream crossing details are on Plan Sheet C802.
I have attached those plan sheets for your use.
Amanda, I'll be happy to send them via link if you need to send that to me again.
Chris, thank you for the update on the wetland maps. We appreciate your help moving this forward!
Please let me know if you need anything additional.
Shannon Tate - Marketing Coordinator / Designer
276.236.4588 - Office I 276.236.0458 - Fax
the th
LANEI25
G0 F I p ANNII+ERS►LRY
�J �j 1J i996-2021
enylneering I vimhiledlwe I envinpnrngntal
Abingdon 1 Big Stone Gap 1 Galax
From: Chris Huysman <[e-mail]>
Sent: Friday, October 22, 2021 12:23 PM
To: Fuemmeler, Amanda J CIV (USA) <[e-mail]>
1

Cc: Homewood, Sue <[e-mail]>; Shannon Tate <[e-mail]>
Subject: Re: Sparta Sewer Repairs Call
Shannon -
I spoke with Amanda this morning and I think we are in good shape overall -
First, can you get her typicals for the "Vegetated Streambank Restoration"? - I am guessing that they are part of your
Trout Buffer submission.
Second, do you have a seeding mixture for the wetland impact areas and is it somewhere in the construction
documents? - If not, please prepare one that includes the NC DOT riparian seed mix (it is available from Green Resources
and works well when mixed with a temporary stabilization mix). We are still waiting to see if there are some additional
requirements within the DOT mitigation area and will have clarity soon.
Finally, I have attached new impact maps- I caused some confusion with the way I noted stream impact S10 in that it
appeared that some impacts were to occur to wetlands. (Instead of having the leader extend to the white box I had it
pointing to a wetland complex.) Also, if you have atypical for the temporary fstream crossing please include it and then
make a note on it that it will be restored per the "Vegetated Streambank Restoration" typical. It will be helpful if you
note that the stream bank restoration needs to be completed within 10 days of the removal of the temporary ford.
Give me a call and I can walk you through this-
Sue -
Please let us know if you have any additional comments so that we can try to address them at this time.
Amanda -
Please let me know if you need anything else.
On Wed, Oct 20, 2021 at 6:55 PM Chris Huysman <[e-mail]> wrote:
Feel free to loop me in if I can help.
Thanks
On Wed, Oct 20, 2021 at 6:05 PM Fuemmeler, Amanda J CIV (USA) <[e-mail]> wrote:
Hi Shannon,
I've taken a look at the revisions sent and delineation that Chris provided. I don't have any issues/concerns with the
delineation and don't need to schedule a site visit to review. However, I do have a few questions about some of the
impacts and would probably be easier/more efficient if we can just do a quick call. I'm available Friday before 11am or
anytime on Monday.
Amanda Jones
Regulatory Specialist
USACE-Asheville Regulatory Field Office
2

828-271-7980 ext. 4225
Chris Huysman
336.406.0906
170 Dew Drop Road
Sparta, NC 28675
[e-mail]
[e-mail]
wetlands-waters.com
The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the
individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified
that any dissemination, distribution or copy of this email is strictly prohibited. If you have received this email in error, please immediately
notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message.
Thank you for your cooperation and consideration.
Chris Huysman
336.406.0906
170 Dew Drop Road
Sparta, NC 28675
[e-mail]
[e-mail]
wetlands-waters.com
The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual
or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any
dissemination, distribution or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by
return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. Thank you for
your cooperation and consideration.
3

RESTORE REMAINDER OF
RIPARIAN BUFFER AREAS
W/ SUITABLE PLANTINGS
BACKFILL/COMPACT
DISTURBED STREAMBANK
TO ORIGINAL GRADE
BACKFILL STREAM CROSSING
EXCAVATION TO ORIGINAL
STREAMBED ELEVATION USING
EXCAVATED STONY ALLUVIUM
CONCRETE ENCASEMENT
- EXTEND 5'-0" MIN.
BEYOND EDGE OF WATER
DUCTILE IRON
CARRIER PIPE
STREAM
REVEGETATE RESTORED BANK W/
SUITABLE NATIVE TREE CUTTINGS
& TEMPORARY SEEDING
COVER/ANCHOR
DISTURBED FACE OF
BANK W/ COIR MATTING
INSTALL/ANCHOR
COIR LOG AT
BOTTOM OF BANK
VEGETATIVE STREAMBANK RESTORATION
NOT TO SCALENOTES:
1.THE STREAMBANK RESTORATION DETAIL APPLIES IN ALL LOCATIONS WHERE
STRUCTURAL STREAMBANK RESTORATION IS NOT SPECIFIED.
2.VEGETATIVE SPECIES SELECTED IN TROUT AND/OR OTHER STREAM RIPARIAN
AREAS SHALL BE IN ACCORDANCE WITH NCDEQ'S GUIDELINES FOR RIPARIAN
BUFFER RESTORATION (SEE SPECIFICATIONS).
RIPARIAN AREA SEEDING TABLES
NCDEQ STD 6.24
ROLLED EROSION CONTROL PROCEDURES
NCDEQ STD 6.17
WATER BAR DETAIL
NCDEQ STD 6.23
BUFFER ZONE DETAIL
NCDEQ STD 6.74
TEMPORARY SEEDING TABLE
NCDEQ STD 6.24a
ADDITIONAL PROJECT-SPECIFIC NOTES FOR TROUT BUFFER ZONES AND RIPARIAN AREAS:
1.TEMPORARY AND PERMANENT SEEDING AND VEGETATIVE STREAMBANK RESTORATION WITHIN TROUT BUFFER ZONES AND RIPARIAN AREAS SHALL BE
COMPLETED IN ACCORDANCE WITH THE REQUIREMENTS OF NCDEQ'S GUIDELINES FOR RIPARIAN BUFFER RESTORATION. SPECIFICALLY, THE FOLLOWING
RECOMMENDATIONS ARE MADE AS FIRST CHOICE:
A.PREFERRED SPECIES FOR TEMPORARY SEEDING INCLUDE BARLEY, RYE, MILLET, OR ORCHARD GRASS.
B.PREFERRED SPECIES FOR PERMANENT SEEDING INCLUDE BIG BLUESTEM, LITTLE BLUESTEM, SWITCHGRASS, OR INDIAN GRASS.
C.PREFERRED SPECIES OF LIVE STAKE TREE PLANTING FOR VEGETATIVE STREAMBANK STABILIZATION INCLUDE BLACK WILLOW, ALDER, OR
ELDERBERRY.
D.IN THE EVENT THAT THE INDICATED PREFERRED SPECIES ARE NOT READILY AVAILABLE, THE CONTRACTOR MAY SELECT ALTERNATIVE
SUBSTITUTE SPECIES FROM THOSE LISTED IN THE GUIDE FOR INTENDED USE.
2.ALL DISTURBED AREAS LOCATED WITHIN DESIGNATED TROUT BUFFER AREAS ARE REQUIRED TO BE MULCHED AND/OR MATTED IN CONJUNCTION WITH
TEMPORARY AND PERMANENT STABILIZATION MEASURES. SURFACE PROTECTION MEASURES SHALL BE IN ACCORDANCE WITH THE FOLLOWING:
A.IN DISTURBED LOCATIONS WITH SLOPES 3:1 OR STEEPER, MATTING MATERIAL SHALL BE EXCELSIOR EXCEL CC-4 EROSION CONTROL BLANKET,
EARTHSHIELD CM700 WOVEN COIR, OR APPROVED EQUAL BIODEGRADABLE MATERIAL.
B.IN DISTURBED LOCATIONS WITH SLOPES FLATTER THAN 3:1, MATTING EQUAL BIODEGRADABLE MATERIAL. MATERIAL SHALL BE EXCELSIOR
EXCEL SS-2 STITCHED NATRUAL EROSION CONTROL BLANKET, EARTH SHIELD CM400 WOVEN COIR OR APPROVED.
3.IN DESIGNATED TROUT BUFFER AREAS, DISTURBED CONSTRUCTION AREAS ARE REQUIRED TO BE STABILIZED EITHER TEMPORARILY OR PERMANENTLY
AS APPLICABLE ON A DAILY BASIS.
4.IN DESIGNATED TROUT BUFFER AREAS AND ADJACENT RIPARIAN AREAS, THE CONTRACTOR SHALL MINIMIZE THE NUMBER OF TREES CLEARED. CLEAR
CUTTING THE ENTIRE DESIGNATED LIMITS OF DISTURBANCE IS NOT ALLOWED.
5.IN ANY WORK LOCATIONS WITHIN DESIGNATED WETLAND AREAS, CONSTRUCTION IS REQUIRED TO BE COMPLETED USING MUD MATS. WITHIN THE
FOOTPRINT OF THE EXCAVATED PIPE TRENCH, TOPSOIL IS TO BE EXCAVATED AND STOCKPILED WITHIN THE PERMITTED AREA OF DISTURBANCE, THEN
USED AS FINAL GROUND COVER AFTER PIPE INSTALLATION WITH SEEDING TO BE COMPLETED USING A NATIVE WETLAND MIX.
1.OBTAIN ALL NECESSARY PLAN APPROVALS AND APPLICABLE PERMITS. PRIOR TO THE
START OF PHASE 2 CONSTRUCTION, THE OWNER WILL SECURE EROSION & SEDIMENT
CONTROL PLAN APPROVAL FROM NCDEQ-LAND QUALITY DIVISION, SECURE NCDOT
ENCROACHMENT PERMITTING FOR NCDOT MAINTAINED ROADWAYS, SECURE SEWER
LINE PLAN APPROVAL FROM NCDEQ, SECURE USACE APPROVAL FOR IN-STREAM
WORK, AND SECURE ALL OTHER REQUIRED PERMITS.
2.NOTIFY ALL AFFECTED PROPERTY LANDOWNERS OF THE WORK PRIOR TO MOVING
ONTO THE PROPERTY.
3.VIDEOTAPE AND/OR PHOTOGRAPH THE PROPOSED WORK AREA TO DOCUMENT
EXISTING CONDITIONS PRIOR TO START OF CONSTRUCTION.
4.PREPARE TO MOBILIZE, ENSURING THAT ALL NECESSARY MATERIALS, EQUIPMENT AND
WORK CREWS ARE AVAILABLE TO BEGIN WORK.
5.HOLD PRE-CONSTRUCTION CONFERENCE PRIOR TO CONSTRUCTION WITH
CONTRACTOR(S), PROJECT MANAGER, AND QUALIFIED PERSONNEL RESPONSIBLE FOR
EROSION AND SEDIMENT CONTROL.
6.MARK UTILITIES AS NECESSARY AND ALL TREES WHICH WILL BE REMOVED VIA
CONSTRUCTION. NOTIFY NC811 OF THE PROPOSED WORK AREA AND REQUEST UTILITY
MARKOUTS.
7.COMPLETE CONSTRUCTION STAKEOUT IN THE PROPOSED WORK AREA - LOCATE AND
MARK EXISTING MANHOLES, CLEANOUTS, PROPOSED MANHOLE LOCATIONS, LIMITS OF
DISTURBANCE, ETC.
8.WETLANDS AND AREAS WHICH ARE NOT TO BE DISTURBED ARE REQUIRED TO BE
CLEARLY MARKED BY FLAGS, SIGNS, ETC.
9.VEGETATION TO BE USED AS TRANSPLANT MATERIAL SHALL BE FIELD FLAGGED AND
NOT BE DISTURBED UNTIL CONTRACTOR IS PREPARED TO INSTALL TRANSPLANTS.
10.INSTALL TEMPORARY CONSTRUCTION ENTRANCE TO THE WORK AREA (IF REQUIRED).
SILT FENCE, INLET PROTECTION MEASURES, AND OTHER E&S MEASURES SHALL BE
INSTALLED AS THE INITIAL WORK STEP AS WORK ADVANCES THROUGHOUT THE
PROJECT AREA.
11.ESTABLISH CONSTRUCTION ENTRANCES, STAGING AND STOCKPILE AREAS,
TEMPORARY ACCESS ROADS, AND STREAM CROSSINGS AS INDICATED ON THE PLANS
(IF REQUIRED). ENSURE THESE ARE LOCATED WITHIN THE LIMITS OF DISTURBANCE
AND STOCKPILE AREAS ARE OUTSIDE THE DESIGNATED TROUT BUFFER.
12.PERFORM ANY NECESSARY CLEARING AND GRUBBING IN PHASES AS WORK
PROGRESSES. CLEARING AND GRUBBING ACTIVITIES SHALL NOT EXTEND MORE THAN
150 LF AHEAD OF IN-STREAM WORK. BANK VEGETATION AND VEGETATION
IMMEDIATELY ADJACENT TO LIVE CHANNELS SHALL BE LEFT UNDISTURBED AS LONG
AS POSSIBLE.
13.WORK SHALL BE SEQUENCED SUCH THAT AT THE END OF EACH DAY, BARE GROUND IS
NOT EXPOSED AND ALL DISTURBED AREAS SHALL HAVE ADEQUATE TEMPORARY OR
PERMANENT STABILIZATION MEASURES INSTALLED.
14.CONSTRUCTION WILL BE SEQUENCED SO THAT THE PROPOSED IMPROVEMENTS CAN
BEGIN AND END AS QUICKLY AS POSSIBLE.
15.CONTRACTOR SHALL NOT, UNDER ANY CIRCUMSTANCES, EXCEED THE LIMITS OF
DISTURBANCE SHOWN ON THE PLANS.
16.FOLLOWING INSTALLATION OF THE INITIAL E&S MEASURES, SUBSEQUENT WORK TASKS
MAY PROCEED; EXCAVATIONS AND TRENCHING, UTILITY LINE AND APPURTENANCE
INSTALLATION, LATERAL CONNECTIONS, REPAVING OF ROADWAYS, AND RELATED
IMPROVEMENTS.
17.TEMPORARY SEEDING AND/OR OTHER TEMPORARY STABILIZATION MEASURES ARE
REQUIRED TO BE INSTALLED ON ALL DISTURBED WORK AREAS ON A DAILY BASIS, A
THE END OF EACH WORK DAY. FOR PERMANENT SEEDING, ALL AREAS TO BE
STABILIZED MUST BE SEEDED OR PLANTED WITHIN 15 WORKING DAYS OR 90
CALENDAR DAYS AFTER FINAL GRADE IS REACHED, UNLESS TEMPORARY
STABILIZATION IS APPLIED. IN ANY EVENT, ALL AREAS WHICH ARE TO REMAIN
PERMANENTLY GRASSED SHALL BE SEEDED IN ACCORDANCE WITH THE ESCPDM.
18.TEMPORARY STABILIZATION IS DEFINED AS THOSE MEASURES INTENDED TO
TEMPORARILY STABILIZE DISTURBED WORK AREAS UNTIL SUCH TIME THAT
PERMANENT STABILIZATION MEASURES CAN BE INSTALLED. FOR DISTURBED
VEGETATED AREAS, TEMPORARY STABILIZATION MEASURES INCLUDE SUCH ITEMS AS
TEMPORARY SEEDING, MULCHING, BLANKETS/MATTING, ETC. FOR DISTURBED
NON-VEGETATED AREAS (PAVEMENT, GRAVEL AREAS, DRIVEWAYS), TEMPORARY
STABILIZATION MEASURES INCLUDE SUCH ITEMS AS GRAVEL BACKFILL, COLD PATCH
ASPHALT, STEEL PLATING, ETC.
19.PERMANENT STABILIZATION IS DEFINED AS THOSE MEASURES INTENDED AS FINAL,
PERMANENT RESTORATION MEASURES INTENDED FOR DISTURBED WORK AREAS.
TYPICALLY THIS INVOLVES RESTORING THE DISTURBED WORK AREAS TO A CONDITION
EQUAL TO THEIR PRE-CONSTRUCTION CONDITION. FOR DISTURBED VEGETATED
AREAS, PERMANENT STABILIZATION WOULD ESTABLISH PERMANENT VEGETATION
USING A SEED MIXTURE APPROPRIATE FOR THAT SPECIFIC LOCATION. FOR DISTURBED
NON-VEGETATED AREAS (PAVEMENT, GRAVEL AREAS, DRIVEWAYS), PERMANENT
STABILIZATION WOULD INCLUDE SUCH ITEMS AS PATCHING/REPAVING ASPHALT
AREAS, RESTORING GRAVEL DRIVEWAY AND PARKING AREAS, REPLACING CONCRETE
SIDEWALKS, ETC.
20.IN THOSE LOCATIONS CLASSIFIED TO BE TROUT BUFFER, DISTURBED AREAS ARE
REQUIRED TO BE STABILIZED AND RESTORED DAILY AS THE WORK PROGRESSES.
TEMPORARY AND PERMANENT SEEDING WITHIN TROUT BUFFER AREAS SHALL BE IN
ACCORDANCE WITH NCDEQ'S BUFFER ZONE (NC ESCPDM 6.74) AND NCDEQ'S
GUIDELINES FOR RIPARIAN BUFFER RESTORATION.
21.THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND
MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. THE
SUPERINTENDENT SHALL BE REQUIRED TO INSPECT ALL E&S MEASURES ON EVERY
WORK DAY AND AFTER EVERY RAINFALL EVENT.
22.AFTER ACHIEVING ADEQUATE PERMANENT STABILIZATION, THE TEMPORARY E&S
CONTROLS WILL BE CLEANED UP AND REMOVED.
23.THE PROPOSED CONSTRUCTION AREAS HAVE BEEN PRIORITIZED SUCH THAT THE
CONTRACTOR IS REQUESTED TO COMPLETE THE WORK IN GENERAL ORDER OF
PRIORITY; LINE 100'S BEING FIRST, LINE 200'S SECOND, AND SO ON. A CONTRIBUTING
FACTOR IN ESTABLISHING THE PRIORITY ORDER IS THE FACT THAT THOSE LINES IN
CLOSE PROXIMITY TO STREAMS WOULD BE MOST ACCESSIBLE DURING THE DRIER
WEATHER SUMMER AND FALL MONTHS.
24.ALL STREAM WORK SHALL BE CONDUCTED IN THE DRY. WORK IN LIVE STREAMS
REQUIRES THAT A PUMP AROUND SYSTEM BE INSTALLED AND FUNCTIONAL PRIOR TO
STREAM DISTURBANCE.
25.CONTRACTOR SHALL NOT DISTURB MORE ACTIVE STREAM CHANNEL THAN CAN BE
STABILIZED BY THE END OF THE DAY. A 24-HOUR PUMP AROUND SYSTEM IS REQUIRED
IF IN-STREAM CONSTRUCTION IS NOT COMPLETED AND STABILIZED BY THE END OF
THE WORK DAY.
26.BEGIN SEWER LINE CONSTRUCTION AT THE FURTHEST MANHOLE DOWNSTREAM AND
PROCEED UPSTREAM WITH SEWER LINE AND MANHOLE REPLACEMENTS. COMPLETE
TEMPORARY AND PERMANENT STABILIZATION OF THE WORK AREA AS APPROPRIATE
FOR THE SPECIFIC LOCATION.
27.IN THE EVENT OF TIME-OF-YEAR RESTRICTION FOR IN-STREAM WORK DUE TO TROUT
WATERS, THE CONTRACTOR SHOULD STRONGLY CONSIDER INITIALLY INSTALLING
PROPOSED SEWER LINE STREAM CROSSINGS IN AS MANY OF THE LOCATIONS AS
POSSIBLE PRIOR TO THE IN-STREAM TIME-OF-YEAR RESTRICTION TAKING EFFECT
THEN WORK BACK TO THOSE STREAM CROSSINGS WITH SEWER LINE REPLACEMENTS
AT A LATER DATE WHEN IN-STREAM WORK IS PROHIBITED.
28.AT PROPOSED SEWER LINE STREAM CROSSING LOCATIONS, MAKE PROVISIONS TO
COMPLETE THE CROSSING USING THE APPROPRIATE METHOD TO MAINTAIN STREAM
FLOW; I.E. FLUME PIPE METHOD, COFFERDAM METHOD, AERIAL STREAM CROSSING,
ETC. MOBILIZE A TEMPORARY TRENCH DEWATERING PUMP AND PIPING FOR TRENCH
DEWATERING. CONSTRUCT THE SEWER LINE STREAM CROSSING AND INSTALL
TEMPORARY AND PERMANENT STABILIZATION OF THE STREAM CROSSING AS
APPROPRIATE FOR THE SPECIFIC LOCATION.
29.CONTINUE WITH THE PROPOSED SEWER LINE CONSTRUCTION UPSTREAM TO THE
PROPOSED ENDING POINT AND COMPLETE SEWER LINE AND MANHOLE TESTING.
COMPLETE WORK REQUIRED SWITCH SEWER SYSTEM FLOW TO THE NEW LINE
SEGMENT(S). COMPLETE ANY SPECIFIED SEWER LINE DEMOLITION FOR EXISTING
SEWER LINES TO BE ABANDONED. COMPLETE TEMPORARY AND PERMANENT
STABILIZATION OF THE WORK AREA AS APPROPRIATE FOR THE SPECIFIC LOCATION.
30.DURING THE CONSTRUCTION PERIOD THE CONTRACTOR IS REQUIRED TO INSPECT THE
PREVIOUSLY DISTURBED WORK AREAS AND MAINTAIN/REPAIR THOSE EROSION AND
SEDIMENT CONTROL MEASURES INSTALLED UNTIL FINAL STABILIZATION IS ACHIEVED.
AFTER ALL CONSTRUCTION IS COMPLETED, FINAL RESTORATION AND STABILIZATION IS
ACHIEVED IN ALL DISTURBED AREAS, AND NCDEQ APPROVES OF THE RESTORATION
EFFORTS, ANY REMAINING TEMPORARY EROSION CONTROL MEASURES (I.E. SILT
FENCE, ROCK CHECK DAMS, ETC.) MAY BE REMOVED AND THE PROJECT CAN PROCEED
TO FINAL CLOSEOUT.
SEQUENCE OF CONSTRUCTION FOR TROUT BUFFER ZONES AND RIPARIAN AREAS:
INSTALL TEMP. SILT FENCE
AT BOTTOM OF BANK SLOPE
AFTER PIPELINE STREAM
CROSSING IS COMPLETED
SHEET:
DATE:
NO.REVISION DATE
1
2
3
File: J:\AHE PROJECTS\ALLEGHANY COUNTY-NC\2102 SPARTA EARTHQUAKE SEWER DAMAGE\AUTOCAD\PLAN & PROFILE\SPARTA SEWER PHASE 2_RECOVER.DWGDRAWN BY CHECKED BY
THE LANE GROUP INC.
PROJECT NO.2020 EARTHQUAKE DAMAGESANITARY SEWER REPAIRS TOWN OF SPARTA, NC25JUN2021
03AUG2021
17AUG2021
07SEPT2021
MSA RKH
TLG-2102LANE GROUPengineeringtheANNIVERSARY1996-2021tharchitectureenvironmentalC902EROSION &SEDIMENT CONTROLNOTES & DETAILS3 07SEPT2021 AGENCY REVISIONS MSA
2 17AUG2021 NCDEQ REVISIONS MSA
1 03AUG2021 NCDEQ REVISIONS MSA
NO.DATE DESCRIPTION BY
FLOW
PLAN
ELEVATION
25'
MINIMUM
TOP OF BANKTOP OF BANK
MINIMUM
25'
WASHED STONE
6" DEEP1/2 DIAMETER OF PIPE
OR 12" WHICHEVER IS
GREATER
EARTH FILL COVERED BY
CLASS B EROSION STONE
CLASS B EROSION STONE
EARTH FILL COVERED BY
STREAM CHANNEL
FILTER FABRIC
NOTE: THIS DETAIL APPLIES TO ALL TEMPORARY
STREAM CROSSINGS PERMITTED TO BE
INSTALLED WITH THIS PROJECT. REFER TO
SPECIFICATIONS AND EROSION CONTROL
NARRATIVE FOR ADDITIONAL REQUIREMENTS.
INLET TEMPORARY CORRUGATED
METAL CULVERT(S)-
SEE TABLE
NCDOT #5 OR #57
TEMPORARY STREAM CROSSING OPTION
NCDEQ STD 6.70
NOT TO SCALE
REFER TO INDIVIDUAL PLAN SHEETS, EROSION CONTROL NARRRATIVE, AND STREAM PERMIT FOR INDIVIDUAL STREAM CROSSING
REQUIREMENTS. THE PLANS HAVE BEEN PREPARED BASED UPON USING OPEN CUT CROSSING WITH CNCRETE ENCASEMENT AT
ALL LOCATIONS. IT SHALL BE THE CONTRACTOR'S OPTION TO CONSTRUCT THOSE CROSSINGS SPECIFIED AS BEING OPEN-CUT
USING EITHER OPEN CUT WITH CONCRETE ENCASEMENT OR STEEL ENCASEMENT - WITH NO CHANGE TO CONTRACT PRICE.
AERIAL PIPE STREAM CROSSING - TYPICAL DETAIL
SEAL BOTH ENDS OF
CASING W/ GROUT
24" MIN.
12" MIN.
CARRIER PIPE
EXTEND END SUPPORT
ANCHOR 36" MIN. BELOW
BOTTOM OF CASING
REINFORCED CONCRETE
END SUPPORT ANCHOR
VARIES
STREAM
PROFILE SECTION
CONTINUOUSLY
WELDED CASING PIPE
2' MIN. COVER
@ PIER
EXTEND END SUPPORT
ANCHOR 36" MIN.
BEYOND OUTSIDE EDGE
OF CASING PIPE (TYP.)
CARRIER PIPE
REINFORCED CONCRETE
END SUPPORT ANCHOR
EX.
GRADE
ANCHOR CASING PIPE
TO CONCRETE W/ 3/8"x3"
STAINLESS STEEL STRAP &
EMBEDDED ANCHOR BOLTS
10'± TYP.
EACH SIDE
PLAN
5'±
STREAM
CONTINUOUSLY WELDED
CASING PIPE
INTERNAL PIPE
SUPPORTS AS REQ'D.
CONSTRUCTION SEQUENCE NOTES:
STEP 1)CONSTRUCTION SHALL BE DONE IN LOW FLOW PERIODS.
STEP 2)ABSOLUTELY NO WORK IS TO BE PERFORMED IN-STREAM.
STEP 3) INSTALL ALL EROSION AND SEDIMENT CONTROL DEVICES TO PREVENT SEDIMENT FROM CONSTRUCTION AREA
FROM ENTERING STREAM.
STEP 4) EXCAVATE PIPE TRENCH & ANCHOR AREA.
STEP 5) INSTALL CASING END SUPPORT ANCHORS.
STEP 6) INSTALL AERIAL STEEL CASING APPROXIMATELY 5 FEET ABOVE STREAM SURFACE USING TRACK-HOES OR
SIMILAR EQUIPMENT OPERATED FROM THE STREAM BANKS ON EITHER SIDE, WITH NO EQUIPMENT OR ACTIVITY
ENCROACHING UPON OR DISRUPTING THE STREAM BELOW. MULTIPLE JOINTS OF STEEL ENCASEMENT PIPE
SHALL BE JOINED BY WELDING PRIOR TO INSTALLATION - PIPE ALIGNMENT SHALL BE STRAIGHT AND TRUE.
SECURE CASING TO CONCRETE ANCHORS.
STEP 7) INSTALL CARRIER PIPE THROUGH CASING USING PRESSURE-TREATED WOOD SKIDS OR MANUFACTURED
"SPIDER-TYPE" SPACERS.
STEP 8) BACKFILL/REINFORCE EXCAVATED AREA AND STREAMBANK WITH COIR MATTING AND VEGETATIVE STREAMBANK
STABILIZATION. NO IN-STREAM WORK IS ALLOWED
STREAM
SECTION VIEW
EXTEND END SUPPORT
ANCHOR 36" MIN.
BEYOND OUTSIDE EDGE
OF CASING PIPE (TYP.)
CARRIER PIPE
10'± TYP.
EACH SIDE
PLAN VIEW
INTERNAL PIPE
SUPPORTS
AS REQ'D.
24" MIN. COVER BELOW STREAMBED,
IF POSSIBLE. IF LESS, TOP OF CASING
SHALL BE BELOW STREAMBED LEVEL
EXTEND END
SUPPORT ANCHOR
36" MIN. BELOW
BOTTOM OF CASING
5'
MIN.
CARRIER PIPE♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦PROFILE VIEW
STREAM
STREAMTEMP. FLUME
PIPE OR PIPES
24" MIN.
COVER BELOW
STREAMBED
ANCHOR CASING PIPE TO CONCRETE
W/ 3/8"x3" STAINLESS STEEL STRAP &
EMBEDDED ANCHOR BOLTS
CONTINUOUSLY WELDED STEEL CASING
PIPE OR CONCRETE ENCASEMENT -
CONTRACTOR'S OPTION
REINFORCED CONCRETE END
SUPPORT ANCHOR-STEEL
ENCASEMENT OPTION ONLY
CREEK BANK
BEYOND
5' MAX.
EXCAVATED
WIDTH
TEMP. SILT
FENCE
TEMP. FLUME PIPE OR PIPES
NON-ERODIBLE
BARRIER OR
SANDBAGS TEMP FLUME
PIPE OR PIPESEXISTING
GRADE
BACKFILL STREAMBEAD TO ORIGINAL
GRADE W/ ORIGINAL ALLUVIUM
MATERIAL EXCAVATED FROM STREAM
REINFORCED CONCRETE END
SUPPORT ANCHOR-STEEL
ENCASEMENT OPTION ONLY
INTERNAL PIPE
SUPPORTS AS REQ'D
CONTINUOUSLY WELDED CASING
PIPE OR CONCRETE ENCASEMENT-
CONTRACTOR'S OPTION
24" MIN.
24" MIN.
SEAL BOTH ENDS OF
CASING W/ GROUT
REPLACE & RESHAPE EXCAVATED WORK
AREA & STREAMBANK, REINFORCE W/ COIR
MATTING, THEN INSTALL VEGETATIVE
TREE CUTTINGS & TEMP. SEEDING
NOTE: THE FLUME PIPE METHOD SHALL ONLY BE AUTHORIZED BY THE ENGINEER WHEN IN-STREAM
CONSTRUCTION WILL LAST 48 HOURS OR LESS & STREAM IS LESS THAN 20' WIDE.
STEP 1) CONSTRUCTION SHALL BE DONE IN LOW FLOW PERIODS AND WITH FLUME PIPE OPERATIONAL.
STEP 2) CROSSING SHALL BE ACCOMPLISHED IN A MANNER THAT WILL NOT PROHIBIT FLOW OF STREAM.
STEP 3) INSTALL TEMPORARY SILT FENCES TO CONTROL APPROACH AREAS.
STEP 4) INSTALL FLUME PIPE AND NON-ERODIBLE BARRIER.
STEP 5) DEWATER W/IN DAMMED OFF AREA INTO SEDIMENT TRAPPING DEVICE OR PUMP SILT BAG.
STEP 6) EXCAVATE TRENCH AND INSTALL PIPE.
STEP 7) BACKFILL STREAMBED WITH ORIGINALLY EXCAVATED ALLUVIUM MATERIAL TO ORIGINAL PROFILE.
STABILIZE BANKS WITH COIR MATTING & VEGETATIVE STREAMBANK STABILIZATION.
STEP 8) REMOVE BARRIER AND FLUME PIPE.
OPEN CUT FLUME PIPE STREAM CROSSING
NOT TO SCALE
PROFILE
PLAN
DUCTILE IRON CARRIER
PIPE & CONCRETE
ENCASEMENT
BACKFILL STREAMBEAD
TO ORIGINAL GRADE W/
ORIGINAL ALLUVIUM MATERIAL
EXCAVATED FROM STREAM
STREAM
TEMPORARY SAND OR
AGGREGATE FILL-REMOVE
FOLLOWING PIPE INSTALLATION
24" MIN. COVER
BELOW STREAMBED
WHERE POSSIBLE
NON-ERODIBLE
BARRIER OR
SANDBAGS
TEMPORARY PUMP SILT BAG OR TEMPORARY
DEWATERING STRUCTURE CONFORMING TO
THE LATEST NCDEQ ESCPM STANDARD 6.60
FOR TEMPORARY SEDIMENT TRAP
GROUND
STREAM
TEMPORARY SILT FENCE
EDGE OF WATER
CREEK BANK BEYOND
STEP #2
STEP #1
REPLACE & RESHAPE EXCAVATED
WORK AREA & STREAMBANK,
REINFORCE W/ COIR MATTING,
THEN INSTALL VEGETATIVE TREE
CUTTINGS & TEMP. SEEDING
DUCTILE IRON
CARRIER PIPE
CONCRETE
ENCASEMENT
NON-ERODIBLE
BARRIER OR
SANDBAGS
CONSTRUCTION SEQUENCE NOTES:
STEP 1)CONSTRUCTION SHALL BE DONE IN LOW FLOW PERIODS.
STEP 2)CROSSING SHALL BE ACCOMPLISHED IN A MANNER THAT WILL NOT PROHIBIT FLOW OF STREAM.
COMPLETE HALF OF CROSSING THEN REPEAT WITH REMAINING HALF.
STEP 3) INSTALL TEMPORARY SILT FENCES TO CONTROL APPROACH AREAS.
STEP 4) INSTALL NON-ERODIBLE BARRIER WITH FILTER CLOTH AROUND CROSSING.
STEP 5) PLACE A SAND OR COARSE AGGREGATE (NCDOT #57) FILL INSIDE BARRIER.
STEP 6) DEWATER WORK AREA INTO SEDIMENT TRAPPING DEVICE OR PUMP SILT BAG.
STEP 7) EXCAVATE TRENCH, INSTALL CARRIER PIPE & CONCRETE ENCASEMENT FROM BANK TO
BARRIER. CAP END OF CARRIER PIPE.
STEP 8)BACKFILL WITH EXCAVATED MATERIAL TO ORIGINAL PROFILE.
STEP 9)REMOVE EXCESS FILL MATERIAL.
STEP 10)REMOVE BARRIER AND FILTER FABRIC.
STEP 11)STABILIZE DISTURBED BANK, INSTALL MATTING, AND VEGETATIVE RESTORATION.
STEP 12)RELOCATE TO OPPOSITE SIDE OF STREAM AND REPEAT STEPS 3-11.
COFFERDAM STREAM CROSSING - TYPICAL DETAIL
NOT TO SCALE
INSTALL COIR LOG @
BASE OF BANK (TYP)
REPLACE & RESHAPE EXCAVATED
WORK AREA & STREAMBANK,
REINFORCE W/ COIR MATTING,
THEN INSTALL VEGETATIVE TREE
CUTTINGS & TEMP. SEEDING
NON-ERODIBLE
BARRIER OR
SANDBAGS
INSTALL COIR LOG
@ BASE OF BANK
DUCTILE IRON CARRIER
PIPE & CONCRETE
ENCASEMENT
BACKFILL STREAMBEAD
TO ORIGINAL GRADE W/
ORIGINAL ALLUVIUM MATERIAL
EXCAVATED FROM STREAM
INSTALL COIR LOG @
BASE OF BANK (TYP)REPLACE & RESHAPE EXCAVATED
WORK AREA & STREAMBANK,
REINFORCE W/ COIR MATTING,
THEN INSTALL VEGETATIVE TREE
CUTTINGS & TEMP. SEEDING
REPLACE & RESHAPE EXCAVATED
WORK AREA & STREAMBANK,
REINFORCE W/ COIR MATTING,
THEN INSTALL VEGETATIVE TREE
CUTTINGS & TEMP. SEEDING
INTERNAL PIPE
SUPPORTS AS REQ'D
TEMPORARY EQUIPMENT
BRIDGE ACROSS STREAM INSTALL DRAINAGE DIVERSION
AWAY FROM BRIDGE ON BOTH
SIDES OF APPROACH RAMP
EXISTING
GRADE
EQUIPMENT APPROACH RAMP-
6" MIN. THICK CLASS A
EROSION CONTROL STONE
SECTION
STREAM
EMBED LOG SUPPORT
IN BANK - TYP.
EACH END
EQUIPMENT APPROACH RAMP
- 6" MIN. THICK CLASS A
EROSION CONTROL STONE
INSTALL DRAINAGE DIVERSION
AWAY FROM BRIDGE ON BOTH
SIDES OF APPROACH RAMP
BANK
STREAM
EMBED LOG SUPPORT
IN BANK - TYP.
EACH END
PLAN
TEMPORARY EQUIPMENT
BRIDGE ACROSS STREAM
BANK
10'
MIN.
TEMPORARY BRIDGE EQUIPMENT STREAM CROSSING
NOT TO SCALE
CONSTRUCTION SEQUENCE NOTES:
STEP 1) EXCAVATE DRAINAGE DIVERSIONS AROUND EACH END OF RAMP AREA.
STEP 2) INSTALL EMBEDDED LOG SUPPORT IN TOP OF EACH STREAM BANK.
STEP 3) INSTALL EROSION CONTROL STONE ON APPROACH RAMP AND DRAINAGE DIVERSION.
STEP 4) INSTALL TEMPORARY BRIDGE OVER STREAM. BRIDGE MAY BE FIELD FABRICATED OF WOOD OR STEEL
MEMBERS AND/OR PRE-FABRICATED PANELS.
STEP 5) BRIDGE TO REMAIN IN PLACE FOR USE BY EQUIPMENT DURING CONSTRUCTION PERIOD.
STEP 6) REMOVE BRIDGE AFTER USE. RESTORE EXCAVATED AREAS TO ORIGINAL CONTOUR.
STEP 7) IMMEDIATELY STABILIZE AND REVEGETATE WORK AREA BY SEED, MULCH AND STRAW.
TEMPORARY
CORRUGATED METAL
CULVERT(S) - SEE TABLE
NCDOT #5 OR #57
WASHED STONE
TEMPORARY CULVERT CROSSING DATA
TEMP. STREAM
CROSSING NO.
PLAN SHEET
NO.
MIN. REQ'D
CULVERT DIA.
MIN. NO.
CULVERTS
REQ'D
S1 C103 48"2
ADDITIONAL NOTES FOR TROUT WATERS:
1.WHEN WORKING IN PROJECT AREAS WITH STREAMS CLASSIFIED AS CLASS C-TR (TROUT),
THE FOLLOWING ADDITIONAL MEASURES ARE REQUIRED TO BE COMPLIED WITH:
A.NO IN-STREAM WORK OR DISTURBANCE WILL BE ALLOWED. DURING THOSE TIME
PERIOD(S) RESTRICTED BY FINAL PERMIT(S) ISSUED (ANTICIPATED TO BE OCTOBER
15 - APRIL 15).
B.DISTURBED AREAS WITHIN OR ADJACENT TO TROUT BUFFER ZONES SHALL BE
REVEGETATED IN ACCORDANCE WITH NCDEQ'S GUIDELINES FOR RIPARIAN BUFFER
RESTORATION.
C.TEMPORARY COFFERDAMS CONSTRUCTED IN STREAMS SHALL BE NON-ERODIBLE
MATERIAL SUCH AS SAND-BAGS, SYNTHETIC DAM SYSTEM (PORTA-DAM,
QUICK-DAM, OR SIMILAR SYSTEM).
D.ANY RIP-RAP OR EROSION CONTROL STONE USED IN CONJUNCTION WITH
TEMPORARY COFFERDAMS AND/OR TEMPORARY STREAM BANK STABILIZATION IS
REQUIRED TO BE WASHED STONE MATERIAL AND IS REQUIRED TO BE REMOVED AS
SOON AS POSSIBLE FOLLOWING COMPLETION OF STREAM CROSSING.
E.CONTRACTOR SHALL MINIMIZE THE AMOUNT OF TREE/VEGETATION CLEARING
WITHIN DESIGNATED TROUT BUFFER AREAS.
F.DISTURBED WORK AREAS WITHIN TROUT BUFFER ZONES SHALL BE TEMPORARILY
STABILIZED ON A DAILY BASIS.
INSTALL COIR LOG @
BASE OF BANK (TYP)
INSTALL COIR LOG
@ BASE OF BANK
TEMPORARY PUMP SILT BAG OR TEMPORARY
DEWATERING STRUCTURE CONFORMING TO
THE LATEST NCDEQ ESCPM STANDARD 6.60
FOR TEMPORARY SEDIMENT TRAP
SHEET:
DATE:
NO.REVISION DATE
1
2
3
File: J:\AHE PROJECTS\ALLEGHANY COUNTY-NC\2102 SPARTA EARTHQUAKE SEWER DAMAGE\AUTOCAD\PLAN & PROFILE\SPARTA SEWER PHASE 2_RECOVER.DWGDRAWN BY CHECKED BY
THE LANE GROUP INC.
PROJECT NO.2020 EARTHQUAKE DAMAGESANITARY SEWER REPAIRS TOWN OF SPARTA, NC25JUN2021
03AUG2021
17AUG2021
07SEPT2021
MSA RKH
TLG-2102LANE GROUPengineeringtheANNIVERSARY1996-2021tharchitectureenvironmentalC802SEWERCONSTRUCTIONDETAILS307SEPT2021AGENCY REVISIONS MSA
2 17AUG2021 NCDEQ REVISIONS MSA
1 03AUG2021 NCDEQ REVISIONS MSA
NO.DATE DESCRIPTION BY