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- Construction work related to sewer Sewerage self-financing construction
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Construction work related to sewer Sewerage self-financing construction
Last update date April 1, 2024
1 Overview
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, Article 16 and Article 26 of the Yokohama City Sewerage Ordinance
2 Application 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 before the construction, and obtain approval from The Mayor of Yokohama, the public sewer administrator.
Please download the form of the application form. For more information about required documents, please contact Public Works Office.
The following documents are usually attached to the mounting pipe. (Please contact us for more information.)
- Guide map (copy of house map, etc.)
- Layout drawing (a shape of the building and the position of the mounting pipe)
- 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 standard drawing of mounting pipes in the Yokohama City Sewerage River Bureau Design Standard Map - 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 standard drawing of mounting pipes in the Yokohama City Sewerage River Bureau Design Standard Map - Excavation cross-section (appropriate to the pavement type at the relevant site)
- A copy of the drainage facility plan confirmation application form (a copy set of duplicates with confirmation seal).
(If drainage construction does not occur, or if the drainage contractor has not been decided due to development activities, etc., please contact Public Works Office for required documents.)
3 Notification of start of self-financing construction
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.
4 Delay
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.
5 Changes
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.
The handling when trying to change the facility contents at the time of approval application is as follows in principle. However, please consult with Public Works Office in advance for minor changes.
Procedure | |||
---|---|---|---|
Changes that require submission of registration form | Corrections to be corrected in books (slight changes) | ||
Changes | Area of the catchment area, pipe diameter of main pipe, pipe type | ○ Change of area of 10% or more | × Area change less than 10% |
Extension of main pipe | Increase / decrease of 10 meters or more | Increase or decrease of less than 10 meters | |
Construction method | ○ | × | |
Gradient | When the difference from the planned gradient is 20% or more | When the difference from the planned gradient is less than 20% | |
Plan bottom height | When the difference between the bottom height of the original plan is 20 cm or more, or the soil is shallow | When the difference from the original plan bottom height is less than 20 cm and the soil is deeper | |
Occupational position of pipe Human holes, rainwater masu | × | ○ | |
Location and quantity of water collection, connection masu, pipe type of mounting pipe, extension | × | ○ |
6 Completion Notification, Inspection
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 are usually attached to the mounting pipe.
- Guide map
- Ledger offset
- 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)
- 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)
- 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
For inquiries to this page
Public Works Office, Kounan, Kounan-ku
Phone: 045-843-3711
Phone: 045-843-3711
Fax: 045-845-6489
Email address: kn-doboku@city.yokohama.jp
Page ID: 304-478-343