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INLET EROSION ~ COG STD. #433 CONTROL DEViC v U
CHECK DAM, TYPE A ~9 ~ o
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q 'mil PIPE SILL DETAIL - X, 66 CP
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~ \ ~ S S ~ IN RT - 79 6 PROPOSED SAN[ }P05ED SAND$AG COFFER DAM TO
M ~ V T F W 1 ti~ / / k / DI ER LO S S ?ERT FLOW TO EX. 66" RCP,/ Q
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/ ~ . ~ ~ CONTRACTOR NOTE5: /
/ INVE T - 7 1.15 9~ R O 00~ REMOVE THE EXISTING 36" RCP AND REPLACE WITH A PROPOSED fib" RCP A5 SHOWN
PROTECT UPSTI DTECT UPSTREA~..PiPE..EMMBANKMENT" THE CONTRACTOR SHALL MAINTAIN OIE LANE OF TRAFFIC DURING THE EXCAVATION WORK. tH-M'iP""RAP SLOPE PROTECTION TO THE
. ...--.-WITH -~iP""RAP TOP OF 80TH I ~ OF 80TH PIPES AND FA$RiC LINER. INSTALL EROSION CONTROL DEVICES AS SHOWN ON THE PLAN.
~ ~ ~ 800 0
~ ~ ~ SEEDING AND MULCHING OR A SUiTA$LE GROUND COVER WILL $E PROVIDED
TIE aoTTOM eaCK CONSTRUCT NEW RIP RAP BASIN AS ~ QN ALL DISTURBE0 AREAS WITH !5 BAYS OR 24 CALENDAR DAYS WHICHEVER
EXISTING GROUNfi TO EXISTING 6ROU1~ SHOWN IN DETAIL BELOW. AT 2: i SLOPE COFFER DAM DIVERSION DEVICE iS SHORTER, FOLLOWING COMPLETION OF THE STORM SEWER INSTALLATION.
REFER TO THE CONTRACT SPECIFICATION OR PLAN OETAIL SHEETS FOR
THE CONTRACTOR IS TO ENSURE THAT NO R OR THE WORK AREA DURING THE INSTALIAT THAT NO RUNOFF FLOWS THROUGH THE 66" PIPE SEEDING AND MULCHING REQUIREMENTS. INSTALLATION. NO EXCAVATION IS TO $EGIN UNTIL
THE DIVERSION IS ESTABLISHED AND LOW D AND LOW FLOW IS OUT OF THE WORK AREA. AT THE END OF EACH DAY, THE CONTRACTOR SHALL INSTALL COG STD. #443,
k THE NEW PIPE INSTALLATION SHALL BE "I HALL $E "IN THE DRY". THE CONTRACTOR SHALL CONSTRUCT TEMPORARY PIPE INLET PROTECTION IN THE TRENCH ABOVE THE THE LAST
• • • PLAN SCALE: = 2Q ~ A SANDBAG COFFER DAM UPSTREAM OF THE AM OF THE EXISTING 36" RGP AND PRQPQSED 66" RCP TO INSTALLED PIPE JOINT. THIS WORK SHALL BE INCIDENTAL TO THE PIPE
RCP DIVERT RUNOFF INTO THE EXISTING 66" R TING 66" RCP WHILE REMOVING THE 36' PIPE AND INSTALLING INSTALLATION,
THE 66" RCP. NO RUNOFF iS TO PASS THR . U~ 0 PASS THROUGH THE WORK AREA. THE PAVEMENT SHALL BE REPAIRED ACCORDING TO COG STD, #423-A.
SEQUENCE
16.5' 8.25' 1. -PRIOR TO ANY EXCAVATION CONSTRUC'
HIGH ACROSS PORTION OF THE STREAM INC1 N CONSTRUCT THE SAND$AG DAM A MINIMUM OF 2 FEET PRIOR TO EXCAVATION THE CONTRACTOR IS TO DIGQUT THE EXISTING WATER LINE AND 5TREAM INCLUDING THE EXISTING 36" PIPE AND GAS MAIN TO CHECK FOR CONFLICTS WITH THE NEW 66" PIPE. THE fib" PIPE MAY BE ADJUSTED
• • • THE PROPOSED 66" PIPE. TO AVOID ANY CONFLICTS. IF THE WATER LINE CONFLICT CANNOT BE AVOIDED THE CONTRACTOR SHALL OFFSET THE WATER LINE. THAT WORK SHALL $E PAID PER EACH AS
2. -CONSTRUCT THE CHECK DAM ACflOSB TI H WN PAN M ACflOSS THE CHANNEL $ELOW THE WORK SITE AS "OFFSET EXISTING WATER LINE".
2 _ RCP S O ON THE L I;
2 2 3. -INSTALL THE NEW 66" PIPE AS SHOWI ?E AS SHOWN ON THE PLAN INCLUDING THE PERMANENT
1r A S TH P N N TO V RT TH SILL CROS EOEIG DiE E EXISTING 6ROt~iD 66" PIPE. SEE THE DETAIL ON THIS SHEE' DIVERT THE LOW FLOW THROUGH THE EXISTING THIS SHEET FOR THE PERMANENT PIPE SILL. SCALE; i° ~ 20'
RIP RAP BASIN ~ A. -CONSTRUCT THE RiP RAP BASIN AS Si TIE 6OTTOM BACK RIP RAP BASIN ~ ~ CLASS I RIP RAP 3ASIN AS SHOWN IN THE DETAIL flRAWING flN THIS SHEET, 20 i0 0 20
PLAN VIEW TD EXISTING GROUND WORK IS COMPLETE AND THE DISTURBED AREA IS
AT ~ sLaPE ~ P R 0 F I L E VIEW 5 . -AFTER THE CONSTRUCTION WORK IS C! r'' STABILIZED, REMOVE THE SANDBAG COFFER 3AG COFFER DAM.

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REVISIONS TYPE CONTRACT CONTRACTOR AS-BUILT AUTH. DATE 1TH. DAT BENCH MARKS JOB NO. P -04504 CffY OF GREENSBORO
ROADWAY DESIGNED04/17/06 BY CEO ENGINEERING DIVISION
SEWER DETAILED 04/17/06 BY CEO l~.~`11 WWD D1*?. s SHEET N0. -41
WATER ~.T CHECKED BY JAM r
EAST OF GRACEWOOD CT. OF
:]SIDEWALK SCALE: 1" = 20' STORM SEWER MODIFICATIONS r INK, mm.Q 28 MY 2008 8 2L 1A Fk \Oeb*Me\ImmcT 2067-7#iP4t#a.per#ecelOweuWeri~elawil.6l0 PLOP FILE NAME
0 8 0 9 1 4
JUN 4 20018
DENR.WATER,QVAw,' ~ WETLANDS AND STORMWATER BRANCH

~7
~
`n
Ex RCP Ta
I BE REMOVED
EX. 66" RCP
EXISTING GROSS SECTION IMMEDIATELY
UPSTREAM FROM THE PIPE INLET. f= PRDRDSED 66" RCP ,I
ROSS SECTI0~1
( LOOKING UPSTREAM )
SCALE: 1" = 5'
0 5 14 20 y;
f.,
EXISTING 66" RCP EXISTING 36" RCP
TO BE REMOVED
93
PROPOSED 66" RCP i" RCP
PROFILE VIEW OF PROPOSED
RIP RAP BASIN.
SEE DETAIL ON SHEET 1 of 1
( LOOKING UPSTREAM )
SCALE: 1" = 5'
0 5 10 20
a ° -0 °
a d 4 ad e Qae A ad
a 4 d a
a CONSTRUCTION SEQUENCE
d a d a d d
d a STEP 1 - DIVERT THE NORMAL FLOW INTO THE DESIGNATED IESIGNATED BARREL USTNG
NEW 66" RCP THE TEMPORARY SANDBAG COFFER DAM a
d d ° STEP 2 - CONSTRUCT THE SILL SUCH THAT WET CONCRETE C CONCRETE DDES NDT
° COME INTO CONTACT WITH THE STREAM.
0 d °
° STEP 3 - LEAVE THE TEMPORARY DIVERSION COFFER DAM IN FER DAM IN PLACE UNTIL THE
d ENTIRE DISTURBED AREA IS STABILIZED AND THE BRICK SI 'E BRICK SILL IS CURED.
a d
Q ° Q STEP 4 - REMOVE THE TEMPORARY DIVERSION DAM AFTER AL d ea CONSTRUCTION IS COMPLETE AND THE ENTIRE DISTURBED AF ~M AFTER ALL :5TURBE6 AREA
° IS STABILIZED WITH VEGETATION.
d a
1 a r
d a d
a
e a a 4
a
a d d
° CONSTRUCT A NEW BRICK SILL ACROSS
r..; ° THE OPENING OF THE NEW PIPE. THE SILL
A d d ° I5 TO BE 12" HIGH AND 8" THICK CONSTRUCTED
° OF BRICK MASONRY.
11 d ° ~2 d d d a
4 a d a d
d a d a° e
cd d a
4
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NOT TO SCALE I I
REVISIONS TYPE CONTRACT CONTRACTOR AS-BUILT RUTH. DATE WTH. DATE BENCH MARKS JOB NO. P -04504 G'~lY GREENSBORO
ROADWAY DESIGNED 05/15/08 BY CEO ENGINEERING DIVISON
SEWER . DETAILED 05/15/08 BY CEO ~1T1A.1~..WWD DR SHEET NO
WATER . CHECKED SY EAST OF GRACEWOOD CT.
2 OF 2
SIDEWALK . SCALE 1 5' STORM SEWER MO IFICATI S
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