Every sewer or drain laid in any land or street
or way, public or private, open or proposed to be opened for public
travel on condition, shall be deemed to be a main drain or common
sewer, and no such drain or sewer shall be laid or connected with
any existing common sewer except under the supervision of the Director
of Public Works upon a grade furnished by the City Engineer.
All public sewers authorized to be laid by the
City Council shall be constructed under the direction of the Director
of Public Works, except where the building of the sewer is let out
by contract, in accordance with the plans and specifications furnished
by the City Engineer. The Director of Public Works, upon the completion
of the construction of the sewer, shall certify to the City Engineer
the cost of construction of such sewer.
The City Engineer shall make and prepare all
needed plans and specifications for the construction of all sewers
built under the provisions of this chapter and shall prepare plans
and profile of such sewers when so built, showing their location and
depth in relation to the street lines and grades, which plans and
profile shall be filed in the office of the City Clerk and, after
being so filed, shall be deposited and kept in the office of the City
Engineer, which shall be deemed a part of the City Clerk's office
for the keeping of such plans.
Whenever any street is opened for the laying
of pipes for water, gas or other purposes or for the prosecution of
any work of construction, such laying of pipes and the work connected
therewith, or such work of construction, shall be so executed as not
to obstruct in any way, course or capacity construction of a common
sewer or main drain, and whenever pipes for any purpose or any work
of construction are found to exist at such depth or in such location
as to interfere with any existing sewer or with the building of any
common sewer or main drain of the required size and at the proper
depth and grades, the department or person maintaining the same shall,
upon notice thereof, at once remove, change or alter such pipe or
pipes or other works in such manner as the Director of Public Works
may direct. If such department or person neglects to comply immediately
with the terms of such notification, the Director of Public Works
may make such removal, change or alteration, and the cost thereof
shall be paid by such department or person.