We carry out open call for participants type proposal about comprehensive maintenance duties of medium- and large-diameter sewer pipe!

　The sewerage pipeline facilities in Yokohama are expected to deteriorate rapidly in the future, and the city is carrying out maintenance and management centered on preventive conservation. In order to respond more quickly than ever, we will consider the introduction of "Comprehensive maintenance and management of medium- and large-diameter sewer pipe facilities", which packages a part of the maintenance work of medium- and large-diameter pipes with an inner diameter of 800 mm or more. We will select a private business operator for the start of the business in April 2021.

1． Business Purpose
　Until now, maintenance work for medium- and large-diameter pipes has been carried out by individually ordering surveys, cleaning, repairs, etc., but more quickly responding to abnormal areas with high urgency. In order to build a system for planning and further improve the efficiency of maintenance work, we will introduce a “comprehensive maintenance business consignment” that packages multiple operations and carries out operations.

2． (For details, please refer to the following URL.)
（1） Title

• Central and large-scale sewer pipe facility Comprehensive maintenance business consignment (Northern part)
• Central and large-scale sewer pipe facility Comprehensive maintenance business consignment (southern part)

（2） Outsourcing period April 2003 to March 2006
（3） Target area

• Northern: 4 Processing Zones (Northern, Kohoku, Kanagawa, Tsuzuki)
• Southern: 5 Processing Zones (Chubu, Southern, Kanazawa, Sakae, Western)

（4） Business description

• Detailed survey work: Investigation work to carry out to grasp the plan formulated by Motoichi and the state of sewer pipes that needed urgent response.
• Emergency cleaning work: Cleaning work performed when it is determined that the flow function is not functioning properly due to detailed investigation work or the occurrence of an accident, etc.
• Emergency repair work: Repair work (excluding construction with excavation) to be carried out when it is determined that the pipe does not have normal function due to detailed investigation work or accident occurrence, etc.
• General Administration & Management Business: Coordination and progress management between the above operations, consultation and coordination with related organizations, information arrangement, etc.

3． Public offering materials
　In selecting a private business operator, the following four materials are posted.
　（1） Proposal method implementation guidelines, proposal preparation guidelines, proposal evaluation criteria
　（2） Business Explanation Materials
　（3） Special specification (draft)
　（4） Business contract (draft)

4． Schedule

5． Background
In examining this consignment, we have conducted sounding-type market research and deliberation by experts (Comprehensive Private Consignment Study Group for Sewerage Pipes).