HomeMy WebLinkAboutD-22401B63
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ow'5
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o�o.3
V�N2 -2
1
Material to N
1/4' plate gals
fabrication pe
12"
NOTES: 1.
Payment for pipe anchors which
ANCHOR SPACING SCHEDULE
DAIL _
FOR "AS CONSTRUCTED
PLANS" ONLY
shall include all pipe stakes and
STAT
hardware shall be considered
HIGHWAY DIVISION
Adft
WOShington Stote
Deportment of Tronsportotion
ZGA2,u10002391wo97D.DC ":t
Maximum Anchor Spacing
DP-21
as incidental and shall be
Pipe
4:1 Slope *
3:1 Slope *E
2 :1 Slope
included in the per linear foot
Dia.
Conc.
Conc.
M P.
Conc.
C.M.P.
'"" " "1�Eg
91WO97
PROJ. ENGR. J. JOHNSON
cost of pipe.
DRAINAGE DETAILS
DIST. ADM. R.O. ANDERSON
CONTRACT NO,
4oS'a
DATE
DATE
REVISION
8"
125'
250'
95'
190'
65'
135'
2.
The smooth coupling band shall
_ _ =
be used in combination with
12"
55'
130'
40'
100'
30'
70'
concrete pipe.
3.
Concrete pipe without bell
18"
T257
65'
1 20'
50'
15'
35'
_
=
and spigot shall no+ be installed
_
_
=
on grades in excess of 20 %.
For grades 10% to 20% Use spacing for 4:1
slope
4.
The first anchor shall be installed
For grades 20% to 30% Use spacing for 4:1
slope
on the first section of the lower
For grades 30% to 40% Use spacing for 3:1
slope
end of the pipe and remaining
For grades 40% to 55% Use spacing for 2:1
slope
anchors evenly spaced throughout
the installation.
The number of pipe anchors per run of
5.
If the pipe being installed has a
pipe shall be determined by the
manhole or catch basin on the
following formula:
lower end of the pipe, the first pipe
be eliminated.
Number of Anchors - Length of Pipe
SMOOTH COUPLING BAND FOR CONCRETE PIPE
anchor may
Spacing from Schedule
6.
When C.M.P. is used, the anchors
may'be attached to the coupling
1. Fractions 0.3 or larger shall
bands used to join the pipe as long
be rounded to the next higher
as the specified spacing is not
number.
exceeded.
2. Fractions below 0.3 shall be
7.
All pipe anchors shall be
dropped except the minimum number
securely installed before
of anchors shall be one (1) when
3"
backfilling around the pipe.
more than one section of pipe
is used.
1/Z" x 6' pipe stakes
PLATE DETAIL each side of culvert
Flatten to point
�e)
cte (see Detail)
al to be ASTM A 36 galvanized
fabrication per ASTM A 153
swp -as -as�a
ANCHOR ASSEMBLY - CORRUGATED METAL PIPE
DAIL _
FOR "AS CONSTRUCTED
PLANS" ONLY
STAT
FED.AID PROJ.NO.
HIGHWAY DIVISION
Adft
WOShington Stote
Deportment of Tronsportotion
ZGA2,u10002391wo97D.DC ":t
SR 405
SOUTH RENTON TO SUNSET BLVD.-HOV
DP-21
10
WASH
I -IR- 405 - 3(783)
DESIGNED BY
ENTERED BY D.B. MELBY
SHEET
t3Z
�
154
SHEETS
CHECKED BY G. WEBBER
'"" " "1�Eg
91WO97
PROJ. ENGR. J. JOHNSON
DRAINAGE DETAILS
DIST. ADM. R.O. ANDERSON
CONTRACT NO,
4oS'a
DATE
DATE
REVISION
BY
I
RO LL'149 279