HomeMy WebLinkAboutIronbridge_DET21/4 D, 4" MIN.
B, MAX TRENCH WIDTH -
LIMIT OF SLOPING
OR BENCHING OF
TRENCH WALLS
LASS 6 AGGREGATE
BASE COURSE
3 EXCAVATION OF NATIVE
TERIAL AND
RECOMPACTION FOR 2.0 FEET
BELOW INVERT OF MAIN
FIG4lRE 1 dt 10GURE 2
.IDEAL TRENCH C- T10NS
1, BELL HOLES SHALL BE EXCAVATED AT ALL BELL & SPIGOT
JOINTS,
2. EXCAVATION OF TRENCHES FOR WATER AND SEWER SHALL
EXTEND 2 -FT BELOW THE PIPE INVERT ELEVATION. WATER AND
SEWER PIPE JOINTS SHALL BE MECHANICALLY RESTRAINED TO
REDUCE THE RIST OF JOINT SEPERATION IN THE EVENT OF
EXCESSIVE SETTLEMENT. THE STRUCTURAL FILL MATERIALS SHALL
BE COMPACTED TO 95% OF THE MAIMUM STANDARD PROCTOR
DENSITY WITHIN 2% OF OPTIMUM MOISTURE.
3. EXCAVATION AND COMPACTION BELOW PIPE INVERT MAY NOT BE
NEEDED BELOW AND APPROXIMATE ELEVATION OF 5975' WHERE
THE DEBRIS FAN SOILS ARE LESS THAN 10' THICK.
NOMINAL
MAX, TRENCH WIDTH AT
DIAMETER
A POINT 12" ABOVE PIPE
33" & SMALLER
B = B,, + 16"
36" & LARGER
B = B,, + 30"
NOTES:
Bd MAX TRENCH WIDTH
TRENCH BACKFILL
HAND TAMPED IN
6° LIFTS
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1/4 Bc, 6" MIN.
E3, PIPE OD
FIGURE 2
18" DIA. & LARGER
CLASS "B" BEDDING REQUIREMENTS
WATER OR SEWER MAIN
(TYPICAL REQUIREMENTS)
N.T.S,
FLOWLINE—,,,,,
4" MOUNTABLE CURB -----
CURB CUT
(SEE SHEET 7)
V WIDE CONCRETE CROSS
PAN (RUN DOWN)
2% SLOPE TO CENTER
4" CURB
TYPE L RIP RAP
Dso=9" 0
EDGE OF ASPHALT
f-1.5' PAN
_V1' 4000 PSI CONCRETE
0.5" I
4'J '
6" CLASS 5 AGGREGATE BASE COURSE
STRIP ALL TOPSOIL, SCARIFY AND RECOMPACT
SUBGRADE A MINIMUM OF 8" DEPTH TO 95%
STANDARD PROCTOR.
FINISH GRADE
3'
FULL BODY WYE FOR NEW
CONSTRUCTION WYE SADDLE
FOR EXISTING SEWER MAIN
MIN. GRADE 2%
(1/4" PER FOOT)
45' BEND
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STEEL POST DIRECTLY OVER
PLUG, PAINT GREEN
REMOVABLE STOPPER
NOTE:
WHEN MAIN IS AT EXCESSIVE DEPTH, SERVICE
STAINLESS STEEL STRAPS MAY CONTINUE UP AT 45° TO MIN. DEPTH OF
FOR SADDLES 9' THEN CONTINUE AT ALLOWABLE SLOPE TO
(2 EACH SADDLE) DWELLING UNIT,
SEWER LINE CONNECTION AT SEWER MAIN
N•T.S.
BACKFILL
OVER MAIN
PROVIDE #5 CONTINOUS BARS
AT FOUR CORNERS
#4 TIES @ 16" O.C. 4 '.
ALL—THREAD ROD (EACH SIDE)
IF REQ'D FOR TIES TO BENDS
2" CLEAR
q,
(TYP.)
I.
TWO SIDES OF
ENCASEMENT TO
BE FORMED
CONTINUOUSLY
SEWER MAIN
CONCRETE PLACED ON
COMPACTED SOIL
NOTE:
ALL SANITARY SEWER SHALL BE ENCASED 11'2—FEET EACH SIDES OF ALL PIPE JOINTS WHEREVER
THE HORIZONTAL SEPARATION BETWEEN THE DOMESTIC WATER AND SANITARY SEWER MAINS IS
LESS THAN 10—FEET OR WHERE THE WATER MAIN IS NOT AT LEAST 18—INCHES ABOVE THE
SEWER MAIN.
GUTTER PAN
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,GE PAN
1
CHANGE IN PIPE SIZE
RECESS MANHOLE —
LID 1/8" TO 1/4"
BELOW FINISH GRADE
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/ BASE COURSE
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3 REINFORCED CONCRETE
— �GRADE RINGS (MIN.)
WITH 6" WALL DROP THRU MANHOLE
9„ „ 24" .19
CAST IRON OR ALUM.—/
MANHOLE STEPS, POSITION INVERT ELEV• Q�7
< OVER SHELF IN VERTICAL SHOWN ON PROFILE
LINE AT 15" o,c. MAX,
< ECCENTRIC CONE
SECTION
REINFORCEMENT
(ASTM—C 478)
FLEXIBLE PLASTIC SEALING
4'-0" DIA. COMPOUND (RAM—NEK) AT
12" 5'-0" DIA. ALL JOINTS
$ ^, NOTES
SPED
IING I
VER I
IN`
WORDS "SANITARY SEWER"
ON COVER
24"C,I. M.H.
RING & COVER ASPHALT
DENVER HEAVY
OR EQUAL
JUNCTION MH ALIGNMENT CHANGE
CONCRETE '
MORTOR
CONCRETE BASE
CAST IN PLACE
(3000 PSI MIN.)
PIPE I.D.
MANHOLE I.D.
18" & SMALLER
21" TO 36"
4'-0"
5'-0"
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/CURB
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1"-3"
GUTTER PAN
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1
CHANGE IN PIPE SIZE
RECESS MANHOLE —
LID 1/8" TO 1/4"
BELOW FINISH GRADE
X
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/ BASE COURSE
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3 REINFORCED CONCRETE
— �GRADE RINGS (MIN.)
WITH 6" WALL DROP THRU MANHOLE
9„ „ 24" .19
CAST IRON OR ALUM.—/
MANHOLE STEPS, POSITION INVERT ELEV• Q�7
< OVER SHELF IN VERTICAL SHOWN ON PROFILE
LINE AT 15" o,c. MAX,
< ECCENTRIC CONE
SECTION
REINFORCEMENT
(ASTM—C 478)
FLEXIBLE PLASTIC SEALING
4'-0" DIA. COMPOUND (RAM—NEK) AT
12" 5'-0" DIA. ALL JOINTS
$ ^, NOTES
SPED
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WORDS "SANITARY SEWER"
ON COVER
24"C,I. M.H.
RING & COVER ASPHALT
DENVER HEAVY
OR EQUAL
JUNCTION MH ALIGNMENT CHANGE
CONCRETE '
MORTOR
CONCRETE BASE
CAST IN PLACE
(3000 PSI MIN.)
PIPE I.D.
MANHOLE I.D.
18" & SMALLER
21" TO 36"
4'-0"
5'-0"
TYPICAL MANHOLE DETAIL
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1.
MANHOLE BARREL MINIMUM DIAMETER SHALL CONFORM TO TABLE.
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SHAPING FOR SMOOTH MANHOLE INVERTS MAY BE DONE BY FORMING
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THE MANHOLE STEPS SHALL BE SIMILAR AND EQUAL TO ALCOA
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ALUMINUM CO. NO. 126538.
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PRECAST SECTIONS TO CONFORM TO ASTM C-478.
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PIPE GASKET REQUIRED AT MANHOLE WALL.
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6.
ALL CONCRETE SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH
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OF 3000 PSI.
MANHOLE I.D. + 16
7.
COMPLETED MANHOLE INSIDE WALL SURFACE TO BE SEALED WITH A
THOROSEAL COMPOUND. ALSO THOROSEAL OUTSIDE WALL IN WET
CONDITIONS.
BASE
REBAR—
#4 0 12" OC
EACH
WAY, 3"
CLEAR FROM
TYPICAL MANHOLE
SECTION
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TYPICAL MANHOLE DETAIL
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