1988-04-19 Proposed Discharge Point of New Forcemain
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ueiER-ROHUN.INC" . \
ENGINEERS-LAND SURVEYORS 1111 Hr!J I'll.""'" Mlnn.66313 Phofte 812-682-1781
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City of Albertv11~.
c/o Maureen ~,:'_..tr.tor
Box 131 '., . ... ..
Albertville, MH 5$101
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Re : Propc>>...
~i.atof,New Pore_in
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aonorable Mayor agdC~~J Council:
As requested, .. bav. evaluated the capacity of the
existing sewer line QD 60th street to handle the flow from the
new interceptor,.
The fore_ain will connect into the manhole at the
intersection of L.-bertand 60th street Northeast. This line has
a slope of .40~ froll this manhole to the' first downstream
manhole, and a slope of .~8% from the first downstream manhole
to the second downstream manhole. Based on the more gradual
slope, the line has a capacity of 335 gpm. 'The new lift station
will contain two 175 gpmpumps. One pump will be a standby pump,
so the additional flow from the new interceptor should not
exceed 175 gpm. Therefore, this line is capable of handling the
flow from the new interceptor until such time that flows require
pump replacement.
As can be ..en on the attached sketch, the house located at
the end of the exi.t~ ....1" line has a basement elevation 3i
feet above the sewer. Since this is where the sewer is the
shallowest, this home should be the most critical. We are
willing to sbootadd.1tional basement elevations if concerned
homeowners will provide us with access.
If you h~ve any ~stions, please feel free to contact us.
Sincerely,
MlYER-ROHLIN, INC.
(JU~
Bob Sullentrop
Professional Engineer
81
Pile: E-8801-A
Tho,. P. Afeyer, Professional EnglnMf IfolNtrt Rohlln. Llcenud unci Sutwyor
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