Cleveland Utilities’ ultimate goal through their
sewer rehabilitation efforts is to have a water
tight sanitary sewer system, with no type of
inflow by roof drains, basement drains or
infiltration from broken sewer pipes and leaking
sewer manholes causing wet weather overflows.
Cleveland Utilities is responsible for the
rehabilitation of 204 miles of sanitary sewers
that range in pipe sizes of 6 inch diameter
through 52 inch diameter and 4000 sanitary sewer
manholes. The type of pipe materials used in our
sewer system will vary from clay, concrete, cast
iron , ductile iron, high density polyethylene,
polyvinyl chloride ( PVC ) depending upon the
era in which the pipeline had been constructed.
The manholes in our system will vary from brick
and mortar manholes to the pre-cast concrete
manholes that we use in today’s sewer
construction.
Cleveland Utilities has 3 full time crews
devoted to television inspection and the
rehabilitation of the sanitary sewer system. The
television crew will select a section of pipe
line and TV it to visually locate any broken or
defective pipe. The TV crew will document all of
the service tees for future reference as the TV
work is performed. The rehab crews will take the
information gathered by the TV inspection and
excavate down to the sewer main and make a point
repair by replacing the broken section of pipe.
Annually the television inspection crew will TV
and clean approximately 30,000 L.F. of sewer
main. The rehab crews will complete an average
of 300 to 500 sewer main point repairs, raise
and seal 150 manholes, rehab 160 sewer service
lines from the sewer main in the street to the
customers’ property line and rehab or replace 25
sewer manholes.
Cleveland Utilities is continually looking at
new methods of trenchless technology and ways to
upgrade and better rehabilitate their sanitary
sewer system. We have in the past couple of
years tried to coordinate our sewer rehab work
with the Public Works Department where CU has
sanitary sewers in the paved streets, so we can
make the necessary repairs on the sewers before
the streets are resurfaced. Through Cleveland
Utilities’ sanitary sewer rehabilitation efforts
we not only comply with the requirements of the
Tennessee Department of Water Pollution Control,
but provide a safe and clean environment for
both the people and wildlife in the Cleveland
and Bradley County area in which to work and
live.
