20070741 Ver 2_Revised Fig 3-Site Plan - Wade Hampton Utility Crossing_20211217

NOTES:
1. PRELIMINARY- DO NOT USE FOR CONSTRUCTION.THIS
PLAN IS NOT INTENDED TO IN ANY WAY TO REPRESENT A
DETAILED CONSTRUCTION DOCUMENT AND IS INTENDED FOR
USACE NATIONWIDE PERMIT SUBMITTAL.
2. POST CONSTRUCTION STREAM CHANNEL MUST BE
RESTORED TO PRECONSTRUCTION CONFIGURATION AND
DIMENSIONS.
PROPOSED 4" DIA. INTERNALLY RESTRAINED CL. 51 DUCTILE IRON PIPE SUBSURFACE STREAM CROSSINGS
TO REPLACE EXISTING ABOVE GROUND WATER MAIN AND SEWAGE FORCE MAIN STREAM CROSSINGS
BACKFILL TRENCH WITH NATURAL STREAMBED MATERIALS REMOVED
FROM STREAMBED (COBBLES, GRAVELS & SANDS) FOR PIPE
INSTALLATION. THE TOP 6" OF STREAMBED MATERIALS REMOVED SHALL
BE STORED SEPARATELY IN A SAFE LOCATION AND REPLACED IN THE
TOP 6 INCHES OF THE STREAMBED TO THE PRE -CONSTRUCTION CROSS
SECTION, ELEVATIONS AND DIMENSIONS.
USE FULL LENGTH 20 FT J
SECTIONS OF 4" DIP TO MINIMIZE
THE NEED FOR IN LINE JOINTS IN
STRAIGHT SECTIONS OF PIPING.
WHERE REQUIRED, IN LINE
JOINTS ARE TO HAVE
INTERNALLY RESTRAINED
GASKET SYSTEM.
MIN. 24" THICK, NCDOT
CL. 1 CLEAN RIP -RAP ON
WEST (RIGHT) BANK ONLY
MINIMIZE STREAMBANK DISTURBANCE ON EAST
(LEFT) BANK, RESTORE BANK TO PRE -CONSTRUCTION
GRADES AND DIMENSIONS AND RE -PLANT AND
STABILIZE ALL LEFT BANK DISTURBED AREAS WITH
NATIVE, WOODY VEGETATION TO PROVIDE
PERMANENT STABILIZATION OF ALL DISTURBED
AREAS. TYPICAL BOTH WATER AND FORCE MAIN
PIPELINE REPLACEMENT LOCATIONS.
KEY RIP -RAP INTO SLOPE AND
STREAM BED, RESTORING
STREAM CHANNEL TO
PRECONSTRUCTION
ELEVATIONS, GRADES AND
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GEOMETRY. TYPICAL.
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NORMAL CREEK
WATER LEVEL
NATURAL
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CREEK
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BED Y'
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x
INTERNALLY RESTRAINED -
x
2 FT
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MECHANICAL JOINT
COUPLING AND FITTINGS AT
CONNECTIONS TO EXISTING
PIPING.
INSTALL RIPRAP
ON FILTER FABRIC, J
MIRAFI 140N
OR APPROVED EQUAL
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NO JOINTS ALLOWED IN 4" DIP
SECTION UNDER STREAM BED
AND FOR A MINIMUM OF 2 FT
BEYOND THE EDGE OF WATER
ON BOTH SIDES OF STREAM.
VIEW LOOKING UPSTREAM
PROVIDE INTERNALLY
RESTRAINED BENDS, FITTINGS
& JOINTS AS REQUIRED PER
PLAN AND AS NEEDED FOR
SITE SPECIFIC CONDITIONS
PROPOSED 4" DIP SUBSURFACE
STREAM CROSSING PIPING TO REPLACE
EXISTING ABOVE GROUND WATER MAIN
AND SEWAGE FORCE MAIN STREAM
CROSSINGS
NOTES:
1. CREEK CROSSING UTILITY INSTALLATIONS SHALL BE IN ACCORDANCE WITH REGULATORY REQUIREMENTS FOR A SITE
SPECIFIC INSTALLATION.
2. INSTALL PROPERLY SIZED TEMPORARY HDPE CULVERT IN STREAM (CENTERED ON PROPOSED UTILITY CREEK CROSSING)
AND COMPLETELY DIVERT STREAMFLOW THROUGH CULVERT USING TEMPORARY SAND BAGS. EXCAVATE BENEATH THE
TEMPORARY CULVERT AND INSTALL THE UTILITY AT THE PROPER DEPTH BELOW THE TEMPORARY CULVERT AT THE PROPER
DEPTH. BACKFILL THE STREAM BED PORTION OF THE UTILITY TRENCH WITH CLEAN, NATURAL STREAM BED MATERIALS
CONSISTING OF COBBLES, FINE GRAVELS AND SANDS FREE FROM ORGANIC MATERIALS. USE A TEMPORARY HDPE CULVERT AND
SANDBAGS TO DIVERT STREAM FLOW TO COMPLETE RIP RAP SLOPE PROTECTION ON BOTH STREAMBANKS AS SHOWN ON PLAN,
KEYING INTO NATURAL GRADE. THE TEMPORARY CULVERT AND SANDBAGS MUST BE REMOVED AT THE END OF EACH WORK DAY
AND UNDER THE THREAT OF RAIN EVENTS AS NEEDED TO PREVENT IMPACT THE FLOOD HEIGHTS AND AS NEEDED TO PREVENT
EROSION DAMAGE. UPON COMPLETION OF ALL PIPE INSTALLATION, COMPLETELY REMOVE THE TEMPORARY CULVERT AND SAND
BAGS AND RESTORE THE STREAM CHANNEL TO PRECONSTRUCTION DIMENSIONS AND CROSS SECTIONS.
3. AREAS TO BE GRASSED SHALL BE SOWN WITH A COMMERCIAL MIX PRE -PACKAGED OF NATIVE GRASSES AND
WILDFLOWERS WHICH ARE NATIVE TO THE LOCAL AREA. NO SEED MIXES CONTAINING TALL FESCUE OR LESPEDEZA SHALL BE
USED. TEMPORARY SEEDING SHALL CONSIST OF WHEAT, RYE GRAIN OR OATS. ANY EROSION MATTING, IF USED, SHALL BE
FREE OF NYLON OR OTHER TYPES OF PLASTIC AND SHALL BE SHORT TERM, BIODEGRADABLE MATTING THAT DOES NOT POSE
AN ENTANGLEMENT HAZARD TO WILDLIFE. ALL SEEDING AND MATTING PRODUCTS SHALL BE APPROVED BY THE ENGINEER
PRIOR TO THEIR USE.
WATER MAIN OR SEWAGE FORCE MAIN REPLACEMENT STREAM CROSSING SECTION
NOT TO SCALE
TYPICAL REPLACEMENT
WADE HAMPTON GOLF CLUB
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Lofquist &Associates, Inc.
SUBSURFACE PIPE
PROPOSED REPLACEMENT OF POTABLE
WATER & SANITARY SEWER STREAM
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PL.4NNING ENGINEERING DESIGN
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jNSTALLATION
CROSSING MAINS
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PREPARED FOR: WADE IIAMPTON POA, INC.
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SrVISED I21h 21
CROSS SECTION
7ACKSON COUNTY, NORTH C.4ROLI\ A