20181254 Ver 1_Surface Water Impacts Exhibit_20180912

CHELWOOD DRIVE
CULVERT REPLACEMENT
SURFACE WATER IMPACTS
PROJECT # : 2017-026 PREPARED BYENGINEERING DEPARTMENTCITY OF CONCORDP.O. BOX 308CONCORD N.C. 28026(704) 920-5425Surveyor's SealG:\Eng\Engineering Projects\Projects\2017\026 ChadbourneChelwood\Technical\Chelwood\2017-026.dwg Sep 10, 2018 - 3:40pm Engineer's SealS7SURFACE WATER IMPACTSLEGENDDENOTES PERMANENT IMPACTS INSURFACE WATERDENOTES TEMPORARY IMPACTS INSURFACE WATERSiteNo.Station(From/To)StructureSize/TypePermanentSTREAMimpacts(lf)S61+58 / 1+44ImperviousDike/Dewatering.009S71+44 / 1+15.19Stream grading, rock sillsand riprap on excavatedchannel banks, in culvertimmediate vicinity28.8114S81+15.99 / 0+53.19Double barrel concretebox culvertS937.19S1023ImperviousDike/Dewatering.036637.02Surface Water ImpactsPermanentSTREAMimpacts(ac)TEMP.STREAMimpacts(lf)TEMP.STREAMimpacts(ac)0+53.19 / 0+160+16/ -0+07Stream grading, rock sillsand riprap on excavatedchannel banks, in culvertimmediate vicinityDENOTES EXISTING IMPACTS INSURFACE WATERS6S8S9S10.012.018EXISTINGSTREAMimpacts(lf)6262.011
S2
S3
S1
S4
S5
SURFACE WATER IMPACTS
LEGEND
DENOTES PERMANENT IMPACTS IN
SURFACE WATER
DENOTES TEMPORARY IMPACTS IN
SURFACE WATER
Site
No.
Station
(From/To)
Structure
Size/Type
Permanent
STREAM
impacts
(lf)
Temp.
STREAM
impacts
(lf)
Existing
STREAM
Impacts
(lf)
S1 0+66 / 0+90
Impervious
Dike/Dewatering 24
S2 0+90 / 1+16
Stream grading, rock sills
and RipRap on
excavated channel banck
26
S3 1+16 / 1+78
Double barrel concrete
box culvert 62
Stream grading, rock sills
and RipRap on
excavated channel banck
S4 1+78 / 2+02 24
S5 2+02 / 2+26 24
Impervious
Dike/Dewatering/Stream
Grading
4850 62
Surface Water Impacts CHADBOURNE AVECULVERT REPLACEMENTCULVERTSURFACE WATER IMPACTSPROJECT # : 2017-026PREPARED BY
ENGINEERING DEPARTMENT
CITY OF CONCORD
P.O. BOX 308
CONCORD N.C. 28026
[phone]
Surveyor's Seal
G:\Eng\Engineering Projects\Projects\2017\026 ChadbourneChelwood\Technical\Chadbourne\2017-026 Chadbourne.dwg Sep 11, 2018 - 8:21amCHADBOURNE AVE, NWDENOTES EXISTING IMPACTS IN
SURFACE WATER
Permanent
STREAM
impacts
(ac)
Temp.
STREAM
impacts
(ac)
0.020
0.008
0.008
0.017
0.0370.016
Engineer's Seal