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ACCEPTABLE TIGHTLINE MATERIAL
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STREET FILE
SHEETINDEX
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1. SITE PLAN
2. FOUNDATION AND LOWER FLOOR PLANS
3. MAIN FLOOR AND UPPER FLOOR PLANS
4. ROOF PLAN AND SECTIONS
5. EXTERIOR ELEVATIONS
6. DETAILS
STANDARD. DRAINAGE DETENTION SYSTEM
WORKSHEET
OWNER
ADDRESSt,
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CALC BY.�)
PHONE:;'
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DATE:
*****DESIGN DATA*****
IMPERVIOUS AREA PIPE DIA
PIPE LG ORIFICE
DETENTION PIPE LENGTH
r WASHED GRAVEL
OUTFLOW T NCH, MIN KY LONG
TOP 4`PERF PIPE TO 8E LEVEL
RIM ELEV Z~t� 1'MIN COVER W PAIIL SPACE .i0��.!
FROM
2'MA% COVER RIM ELEv
CONTROL
L
OUTLET I+
�wc �av
4` 0 MIN T
4'PERF PIPE
.S%_ 1'. SLOPE 4' 0 PIPE MIN.
= Z
'/C I Z a
RUNOFF SPREADER
ORIFICE
OUTLET
INV ELEV '" INV ELEV
(AK
BA LONTROC
BA SIN
'
BASIN
DEEP, 4'- E' OUARRY SPALLS
SYSTEM CROSS SECTION
■2i13` DEEP, 3/4`CREISHED ROCK
•
_
FROM CONTR +
OUTLET
, „•,�
RIPRAP OUTLET
r -ET FILE.
R.;
FOOTING DRAINS SHALL NOT BE CONNECTED TO DETENTION SYSTEM
NOTES:
L Call Engineering Division (771-0220) for a tightline and detention system inspection
before backfilling and for final inspections. APPROVED BY
2, Responsibility for operation and maintenance of drainage systems on private property is the
responsibility of the property owner. Material accumulated in the storage pipe must be flushed
out and removed from the catch basins to allow proper operation. The outlet control orifice DATE
must be kept open at all times.
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