A. Drainage systems shall be constructed in full accordance with approved designs and specifications, without variation, except as may be authorized by a change order or field change approved by the city:
1. The developer, landowner or legal agent thereof engaging in any land improvement or change covered by this chapter shall be responsible for any and all construction activity as covered by approved designs, plans and data. Projects and tasks proposed in the plans and documents required by this chapter shall be implemented as proposed under the supervision of the engineer preparing such plans and documents;
2. This section shall not be construed to exclude the developer or his responsible supervisor from providing installations in conformance with the requirements and constraints of this chapter whether a part of the design documents, or inadvertently or otherwise excluded;
3. Upon determination and notification by the city that construction or any part thereof is in violation of this chapter or approved construction plans, such work shall be immediately discontinued and shall not be restarted until such violation is corrected;
4. All facilities, structures, and installations made under the provisions of this chapter shall be constructed in a workmanlike manner and using methods and procedures that shall assure a quality installation. The construction of any drainage system shall conform to the Oklahoma department of transportation specifications for the construction of drainage system unless otherwise specifically approved by the city;
5. The developer shall provide barricades, guardrails, walkways, shoring, warning signs and flashers, and such other measures as deemed necessary to protect workmen, traffic, pedestrians and any other person near or adjacent to a hazard from injury or damage. Such protection shall be provided upon start of an operation, and shall be fully maintained until there is no longer a hazard and approval has been given for removal of the protection. Signing shall be in accordance with part VI, "Traffic Controls For Street And Highway Construction And Maintenance Operations" of the current manual on uniform traffic control devices;
6. The structural integrity of all drainage structures shall be maintained during all phases of construction;
7. A construction notice to proceed must be obtained from the city prior to the start of construction of any drainage system or improvement which is:
a. Owned by or to be dedicated to the city;
b. To be constructed on a city right of way or easement;
c. A required "off site" improvement; or
d. Otherwise required by the city.
Construction inspections may be made during and after construction by the city and may serve as the basis of all approvals or disapprovals; and
8. The erosion and sedimentation control plan shall be implemented in accordance with the provisions of the Oklahoma pollutant discharge elimination system. Developers, property owners and contractors shall keep streets, gutters, inlets, drainage pipes, swales, ditches, drainage channels, and all drainage devices and structures clean and free from debris, sedimentation, soil and any materials during construction. (Ord. 1387, 1-30-1996)