Outline of self-financing construction

It is construction that person except public sewer manager performs construction about sewer facility on public roads after having received approval of public sewer manager at expense.
For example, if there is one existing house where there is one existing house, three mounting pipes are required, but in most cases, two of them will be self-financing (new construction), and one is the existing installation pipe. Use an existing installation pipe. If the position of the existing mounting pipe is changed due to the layout of the building, this will also be self-financed construction (removal / new construction).

Please select the self-financing construction from the contractors (industry type: civil engineering work business) that has been licensed by the Construction Business Law. But, about installation pipe construction, we can choose from drainage facilities designation construction shop which the mayor of sewer regulations Article 32 appointed.

See Article 16 of the Sewerage Law, Yokohama City Sewerage Ordinance Article 16 and Article 27

When carrying out self-financing work, you must submit an application for approval of construction of sewerage facilities to each Public Works Office before the construction, and obtain approval from The Mayor of Yokohama, the public sewer administrator.
Application forms are distributed at Public Works Office and others. For more information about required documents, please contact Public Works Office.

The following documents (1-6) are usually attached to the mounting pipe. (Please contact us for more information.)

1. Guide map (copy of house map, etc.)
2. Layout drawing (a shape of the building and the position of the mounting pipe)
   
3. Floor plan (The extension of the mounting pipe is entered from the inner surface of the basin to the center of the main pipe. 1 decimal place (in meters)
   →　Refer to the mounting pipe laying diagram of Yokohama City Sewerage Design Standard Map (tubes)
4. Longitudinal view (Extension of the mounting pipe is entered from the inner surface of the basin to the center of the main pipe. 1 decimal place (in meters)
   →　Refer to the mounting pipe laying diagram of Yokohama City Sewerage Design Standard Map (tubes)
5. Excavated cross section (appropriate to the pavement type at the relevant location. Please check with Public Works Office.)
   
6. A copy of the drainage facility plan confirmation application form (a copy set of duplicates with confirmation seal).

If you have received a letter of approval from Public Works Office, start construction of sewerage facilities, etc., please submit it to Public Works Office along with a schedule to registration form.

When we are going to extend construction period for unavoidable reasons, we must submit construction period extension registration form such as public sewerage facility construction to the mayor with schedule. (Yokohama City Sewerage Ordinance, Article 17, Paragraph 5)

The term "unavoidable reason" here is, in principle, the following cases.

• When negotiations with local residents are difficult and construction is delayed.
• When construction is delayed due to relocation, cut, protection, etc. of underground buried objects, etc.
• When an unexpected accident occurs at the design stage of soft ground, spring water, etc., causes a change in the construction method, etc., and the construction is delayed.
• When construction is delayed due to natural disasters, land changes, etc.

When we change construction periods for unavoidable reasons or are going to change facility contents at the time of approval application, we must submit change registration form such as public sewer facility construction work to the mayor. Please consult with Public Works Office, etc. for necessary drawings.

Please see page of Environmental Planning Bureau "about sewer self-financing construction" for the handling when we are going to change facility contents at the time of approval application. Please consult with Public Works Office in advance for minor changes.

Applicants must submit the completion of construction of public sewerage facilities to the Public Works Office in charge of completion of construction of public sewerage facilities, etc. to the relevant registration form promptly and undergo a completion inspection.

The following documents (1-5) are usually attached to the mounting pipe.

1. Guide map
2. Ledger offset
   →　Public sewer ledger figure information "Daichan map" (outside site)
3. Floor plan (The extension of the mounting pipe is entered from the inner surface of the basin to the center of the main pipe. 1 decimal place (in meters)
4. Longitudinal view (Extension of the mounting pipe is entered from the inner surface of the basin to the center of the main pipe. 1 decimal place (in meters)
5. Construction photo

If there is no defect in the contents of the self-financing construction (if it can be taken over as a facility in Yokohama City), after completion inspection, a certificate of completion inspection (the one with the mayor's seal or Public Works Office seal) will be issued to the applicant. Will be