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SAN M" WOMM AUOMTM — OWTHE CALrFOR10A CHAPTER
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DROP SEMEN MANMOL!
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BLANKET PROTECTION FOR PIPES
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1. EXCEPT AS INDICATED HEREON OR ON THE PROJECT PLANS,
MANHOLES SMALL CONFORM TO STANDARD PLAN 2000 PRE•
CAST CONCRETE SEWER MANHOLE AND STANDARD PLAN 2630
I .
BRICK SEINER MANHOLE.
2. ALL PIPE FOR THE. SEVER AND TME M" MIT SMALL Of
OF THE SAME MATERIAL AS THE SEWER UNLESS APPROVED
ADAPTERS ARE UTILIZED. THEN IT SMALL, UNLESS OTHER—
WISE INDICATED ON THE PROJECT PLANS, BE ANY OF THE
FOLLOWING:
A. VCP
B. ASS SOLID WAIL PIPS
C. ABS COMPOSITE PIPE_
D. PVC PLASTIC PIPE
E. PE PIPE
3. DIMENSIONS:
H - SEE PROJECT PLANS
ELEVATION "A" - SEE PROJECT PLANS,
UNLESS OTHERWISE IND I CAT" ON THE PM0jfCT PLAMl,
D1 = 1 INCHES
.Do s 1 INCHES
DM s 41-0" (WMEN THE PROJECT PLANS INDICATE THAT
DM>k r -O", SEE PROJECT PLAN FOR ADDI-
TIONAL REQUIREMENTS)
A. CONSTIMCT A BRICK ARCM OVER EACM T?IfLET AND OUTLET
OF A SEWER PIPE WITHIN A BRICK MANHOLE PER STANDARD
PLAN 203. PRECAST CONCRETE MANHOLES SHALL BE PLUGGED
DURING FABRICATION AT REQUIRED LOCATIONS TO PROVIDE
FOR SEWER PIPE INLETS AND OUTLETS.
S. WHEN THE PROJECT PLANS INDICATE TWO OR 140RE DROP
INLETS ARE REQUIRED IN A SINGLE MANHOLE, EACH D"W
INLET SHALL BE CONSTRUCTED AS A SEPARATE DROP INLET.
AMEIIICAN PUKAC MOM ASSOCIAT10M - SOU TI111AN CAUDA CHAFTE'll
MMAM ft"
202-0
DROP SEWER MANHOLE
STANDAM PLM
MEET a or S
r -CROS NG Poo WALL (D A►M[TS,R M PIPg.l )
(CCONCAVE
u►� 20-02000
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Uplo NURSED SART" ITrR4 S• MIN.• 3/41k Fm as 1s'
olniwE or PIP[ utu!'!7 ' Y'1
E><IiTMN PIK
CONCRETE BLANKET
.(FM EXISTING PIPES CROSSED OVER BY A NEW PIPE)
M:
1. CONCRETE BLANKET IS REQUIRED WHEN THE CLaA1111NCE v[TWEEN THE TOP OF THE ENSTM PPE AND THE BOTTOM OF TFiR
CROSSING PIPE IS LESS THAN 1V.
2. 'Y"= D/6(V' MIN.) WHERE THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING PIPE 6
LESS THAN W', THE CONCRETE SHALL BE PLACED BETWEEN THE PIPES AND AROUND THE SIDES OF THE CROSSING PIPE LIP TO
A LEVEL EQUAL TO "Y" ABOVE THE EXISTING PIPE, OR AS REOMED BY NOTE 3 BELOW, WHICHEVER IS HIOHIm
3. 'X"- D/12, MINMALIIN, TO PROVIDE BEDDW6 MATERIAL FOR THE CROSSING CONDUIT. WHEN "X' IS LESS THAN THIS MINK M, TM!
IENTIRE TOP SURFACE OF THE BLANKET SHALL BE RAISED TO MAKE CONTACT WITH THE LOWER 90' OF THE CROSSING PIPE.
4. THE BLANKET SHALL EXTENT LONGITUDINALLY TO THE FIRST JOINT BEYOND THE TRENCH EXCAVATION AT EACH END OF TH!
BLANKET, EXCEPT THAT THE BLANKET NEED NOT BE EXTENDED MORE THAN 4 FEET BEYOND THE TRENCH.
S. WHENEVER A PIPE MILL 16 ENCOUNTEROW WITHMI THE LIMITS OF THE SLAMET, ALL DIMENSKM SHALL REFER TO THE 13ELL.
IL
INVERT SLAS OF ARCH OR emi■ i• 2" THICK STYROFOAM OR OTHER
SECTION ;CROSSING CONDUIT) APPRMED CONFRESSIMI a YnjUK
s'
u1NISTUII�EE vlwrM ! \r
no srM11A111r
OVTSIK Of ASPS KLIL
EXISTING CONOWT
COMPRESSIBLE BLANKET
(FOR EXISTING PME3 CROSSED OVER BY A NEW SOX ON ARCIO
NOTE11:
1. COMPRESSIBLE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTNO
PIPE AND THE BOTTOM OF THE CROSSING CONDINT (BOX OR ARCM] 16 LESS THN 11r.
2. THE BLANKET SKA LL EXTEND LONGITUDNAALLY FOR THE FULL. CROSSM CONDUIT TRENCH WIDTH.
AMEI�ICAII rum= won" CHAPTER
STANDAM PLM
111111M)MULGATED
mdT G�RATIlGE =mumm
BLANKET PROTECTION FOR PIPES
22S.0
M NIM fff=M W OPICAT101iR POLI MW NaR0 OOMS'MYCTION
LIMIT 1 a 1
Q�OF ES01
01
Q 0
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