HomeMy WebLinkAbout2009-11-17 Bonestroom Memo Re Storm Drainage Pipe Resolutions Memorandum qc• Bonestroo
Project: Olene Ave. N. and 2335 Highway 36 W
St.Paul,MN 55113
To: Eric Johnson Olinda Ave. N.—Storm Date: 11/17/09
Sewer Improvements Tel 651-636-4600
Fax 651-636-1311
From: Chris Long Client: Oak Park Heights
www.bonestroo.com
Re: Storm Sewer Drainage Pipe Resolutions File No: 000055-09162-0
Background:
The private backyard drainage system between Olene Avenue North and Olinda
Avenue North has failed. The existing 8"drainage pipe was determined to be plugged
just north of the existing catch basin, which is located in the northwest corner of the
existing parking lot at 5816 Olene Avenue North.
The existing catch basin collects all of the drainage from the parking lot, which entails
the runoff from the garage of 14386 58th Street North, and the building units of 5802
and 5816 Olinda Avenue North. The remaining backyards drain to the north above
ground and not into the existing drainage system.
City staff flushed water into the system which exposed the location of the plugged
pipe. Water exited to the surface at two locations on the 5834 Olene Avenue North
property, and drained above ground to the north. The only water observed exiting the
system was on this property.
This report presents two options for resolving the plugged drainage system; a
temporary solution, and a permanent solution.The information presented here is the
result of initial survey data, observations and meetings with City staff, and review of
utility record information.
Storm Sewer Drainage Resolutions:
Option 1— Excavate and Repair Existing Drainage System:
This option provides a temporary solution to repair the existing drainage pipe.
This work entails exploring and excavating the existing pipe at the plugged
locations. The pipe will be removed and replaced at the plugged locations
until the drainage system is functional. Restoration and seeding of the
disturbed area will be required.
The pipe is located on private property with no City drainage and utility
easements.
The amount of the work required will vary depending on the extent of the
plugged pipe.
5 of 33
Option 2—Install Storm Sewer on Olene Avenue North(see Figure 1):
This option provides a permanent solution including installing storm sewer
pipe and catch basins to collect drainage from the existing parking lot and
Olene Avenue North. The existing drain system will be left in place with no
connection to the new storm sewer system.
Connection to the existing catch basin manhole (EX. CBMH) will be required at
the southeast corner of Olene Avenue North and 59th Street North. The
existing catch basin (EX. CB) located in the existing parking lot will be
removed and replaced. Removal and replacement of the street aggregate
base section and bituminous will be required for the installation of storm
sewer.
Landscaping, fences, a light pole, and a sign will require removal between
5834 Olene Avenue North and 5816 Olene Avenue North. Restoration and
seeding of the disturbed area will be required.
The storm sewer pipe connecting the catch basin in the parking lot will require
a 20'drainage and utility easement for maintenance purposes.
Cost Estimate(subject to actual pricing):
The estimated costs for the storm sewer drainage resolutions are shown below:
Total Costs
Option Construction Cost Engineering Cost Total Construction Cost
1 $ 8,000.00 N/A $ 8,000.00
2 5 48,000.00 5 8,000.00 $ 56,000.00
For Option 1 and the purposes of this report, it was estimated that one-third of the
total existing pipe will require replacement. It was assumed that no engineering would
be needed as the replacement of the drainage pipe is private work.
The costs for Option 2 included engineering fees and contingencies. Since the
construction work is located within the City's right of way and proposed drainage and
utility easement, engineering design and inspection of the construction will be
required.
The costs do not include the acquisition of easements.
Page 2 of 3
6 of 33
Summary and Recommendations:
The estimated cost for Option 1 is significantly lower than Option 2. This reflects the
difference in a temporary solution vs. permanent solution. The existing drainage pipe
can be repaired, but is more susceptible to fail and plug again.
It is recommended to install the new storm sewer in Option 2 as a permanent
solution. Including this work in future street reconstruction projects would be
beneficial and reduce costs.
If a resolution is required soon and prior to street reconstruction, Option 1 provides
the best temporary solution.
Page 3 of 3
7 of 33
•
I
' I 1
ill
i •
Ce)
FM n
ii ''
1 j 1,
g 4 F
i
5898 : `(11 14385 1 EX. STORM SEWER(TYP.)
I •
I' ` 1
1,
k ; I li
r I i i 5896 11 1.
1 '. I I CONNECT lib EX. CBMH 5898
: i i
1 Ai i {(t
i III 5889 11 1 18" RCP STORM SEWER
EX. PRIVATE BRAIN TILE i I I <'' ,ii
5887 ,i 12" RCP STORM SEWER
II
II
I 5888 j'
5886
5880
REMOVE AND REPLACE BITUMINOUS, 11 �1 5871 ;_NEW CB NEW CBMH
PATCHING (TYP.)II j \ 5872
5862 I {
1 1
i1 (11
11
II 5857 5858
li
I j 15" RCP STORM SEWER
I i 5835 PROPOSED 20' DRAINAGE
i j ; 5834 AND UTILITY EASEMENT(TYP,)
5836 10 �i ; ii`` NEW CBMH 5862
Lii if
^ II s i 5817 _ ._
5810 II '
~O 5816
'1 r ' 12" RCP STORM SEWER
REMOVE AND REPLACE 1 ( C7 1
•EX. CAtCH BASIN I . 1 ' , 1
14386 a �
11 a ,
I i 1 w N
i. 5850
5800 ( 5802
1 i
,
,
' o So 100
`_ 1. Horizontal Scale In Feet
{
CI, Ni i. 1 i
OPTION 2 - STORM SEWER DRAINAGE IMPROVEMENTS
CITY OF OAK PARK HEIGHTS FIGURE: 1 Bonestroo
Olene Avenue North - Storm Sewer Improvements
STOR?,1 EWER.DWG DATE: 11/17/09 COMM: 55-09000-0
Ask
-,,
•"6 -„,
L.,-„ \ ,,,,,-,,,,e• ...„:„._, # 7,41N- -
--:.-7- \
••1 . -'''' Ni_:. •''' 1
"\
• N (4.1$'` ::-':' vo-i ,.
\ ,
vi
,„„.. ,..4.4:44-'"zj'kt;'*7:7;
\ \
„„
, ,.
F ,-,
J
...
j-- -avikove9 ,
,.•s- --- - \ \
/
1 I
Z I -,
\
_ , •,,, \ • 1
t•—•
)...,-----..... , <,z,, '',,,,
T
0
1 --- ,
1 sr—
^er.
i'..- .
.,:,1 1 A ,,,' • 1 I,:z.--
,....5
t...... 4,
.s,. —• .
_.•. ..,
:,7' , ....,. •—.A.
al
_._
a
pi
ca t1/4,y4 t
/
14d asiit...y ,I•
,.2 t. '
.:0 (7\e /
t
V.,
?..i.- 1,.
., ..
. 1
,14161, ti, ,
Cgtle 1 ...
CIO VI
t•--
• ., . 2::::
9 of 33
_E-_-?. • , ___: :,
et,
. .
,,,,,,.,,
, .. . ,.
_. .. ..._ .....
tare* Viarsilw-s. lINE.".
. .
-__
Fax
T.: From: 1 ;,03
Fax: (ivpM) _ s4,30 1131atM ) I -13
Phone:
.. .
Re: CC: - .
1:1 Urgent Ikl For Review El Please Comment El Please Reply ci Please Recycle
•Commentst
—
U.\C . (D -k 14 57)41 WOULD Li LE yov to
?boa
•
Curb Masters, Inc. 500 W Poplar $1illwater,MN 55062 (651)351-9200 Fax(651)351-9300
10 of 33