Self-financed construction

Person other than sewer manager receives approval from sewer manager and performs construction about sewer facility on public roads at own 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-financed construction (new construction), and one is an existing. Use a mounting 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 confirm each procedure from application to completion and application style, please confirm on homepage of sewer River Bureau sewer self-financing construction.

(http://translate-en.city.yokohama.lg.jp/kankyo/gesui/jihikoji/20170316120054.html)
↑Click here for the procedure and application form for self-financing construction

When carrying out self-financing work, you must submit an “Application for Approval of Construction of Sewerage Facilities” to each Public Works Office and obtain approval from The Mayor of Yokohama, the public sewer administrator.
The following documents (1-8) are usually attached to the application for self-financing construction of the installation pipe.

“Application for Approval of Construction of Sewerage Facilities” (No. 12 style)

１．Guide map (copy of 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 from the inner surface of the basin to the center of the sewer main. Up to 1 decimal units in meter units)
→Refer to the installation pipe laying diagram of Yokohama City Sewerage Design Standard Map (tubes) (to the Yokohama City Sewerage River Bureau)

４．Cross-section (The extension of the mounting pipe is from the inner surface of the basin to the center of the sewer main. Up to 1 decimal units in meter units)

Caution: For construction with a pipe diameter of 250 mm or more, a longitudinal view is required.

５．Cross-section of pavement drilling (appropriate to the pavement type at the relevant location. Please check the type of pavement with Public Works Office.)

６．Boundary survey map (copy) or road ledger (copy)

７．Drainage equipment plan confirmation application form (confirmed duplicate) copy

8． Road excavation site road surface restoration work accompanying construction of public sewerage facilities
(Attachment is required from April 1, 2017)

When a person who has been issued a letter of approval from the Public Works Office, please submit it to Public Works Office with a schedule attached to "registration form starting construction of sewerage facilities".

“Notification of Start of Construction of Sewerage Facilities” (No. 14 style)

Please attach the process schedule.

Upon completion of the construction work, the applicant must promptly submit the “registration form completed construction of public sewerage facilities” to Public Works Office and undergo a document inspection and on-site inspection at the construction site.

Completed construction of sewerage facilities, etc. registration form (No. 17 style)

registration form is usually accompanied by the following documents (1 to 5):

1. Guide map
2. A copy of the sewer ledger with the offset entered (describe the offset (distance) from the connection basin and the upstream human hole to the connection basin)
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 point (in meters))
4. Cross-section (The extension of the mounting pipe is entered from the inner surface of the basin to the center of the main pipe. 1 decimal point (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