Letter from City Engineer on Water and Sewer Mains_01.31.1977THE CITY OF
DUBUQUE
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OFFIOE OF THE CITY ENGINEER
CITY 14ALL :. OU BUQU E. IOSYA O).00I
Telephone (319) 583-6441 Ext. 48
January 31, 1977
Mr. Neil Nemmetz
Arnold & O'Sheridan Consulting Engineers
815 Forward Drive
Madison, WI 53711
Re: Five Flags Civic Center
-Dear Mr. Nemmetz:
In regard to your January 21, 1977 letter, the following comments are made:
1. If the 10" sanitary sewer is to remain in place, it would have
to be replaced by ductile iron pipe. It would be possible,
however, to re-route the line east on 5th Street to connect
with the present 10" sewer on Iowa Street.
2. If the 20" water main is to be located within the tunnel, it
would have to be replaced by ductile iron pipe with restrained
joints. The line could also be relocated west on 5th Street to
Locust, then south on Locust to 3rd Street, where it would
connect to the present main at 3rd and Locust.
In either case the amount of interrupted service would have to
be held to a minimum because the line is the major feed into
the area. A parallel system would have to be constructed and
completed prior to the transfer from the old system to the new.
The depth of the 20" water main at 4th Street is 4'2", and is
located 914" west of the east alley line. The depth at 5th
Street is 6'011, and is located 1114" west of the east alley
line.
The water main marked as "4" LP We scheduled to be removed" on
Cullen-Schiltz's drawing dated October 8, 1973 has been capped
and abandoned. This pipe could be removed.
.3. We do not have any specific code requirements as to utilities located
within a tunnel such as is proposed here. We would have to work out
the needs of each utility company individually.
UE
January 31, 1977
-2-
Mr. Neil Nemmetz
revious elevations is the Point
The benchmark used for all P the southwest corner of 4th
9. on the fire hydrant at 639.41.
of arrow The elevation of same is
Gust. Sewer and water
and Lo fund.
relocation of the s building
The cost of reconstruction/ the Five Flag
5 to be borne by and electrical
as mains, telephone lines,
mains would have the responsibility of either the
The relocati°he alleyn of gwould be S fund.
lines inoompany or the Five Flag
utility
ther information,
Should you need furplease advise.
Sincerely,
/6
Michael k- Koch
City Engineer
Mw/7
cc: 'Gent Wittenberg
Dick Feyen Jim McGloughlin
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