JNM Engineering Ltd is a well-established Civil Engineering Consultancy with over 14 years experience building a reputation within the sector in the UK and also Internationally. Our portfolio as a civil design consultancy boasts developments ranging from small housing schemes to major redevelopments including, drainage design, highway design, civil structural design, flood risk assessments, flood prevention schemes and modelling of commercial airports.
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When designing surface water drainage our engineers must follow a design hierarchy set out below using SUD's principles where possible.
Soakaways are always the preferred method to discharge surface water from a site.
Percolation tests must be carried out site in line with BRE Digest 365 to ensure that the ground is suitable for the use of soakaways.
In built up areas, towns and city's connection to public sewer is more common when the existing ground conditions do not permit the use of soakaways.
Soakaways are always the preferred method to discharge surface water from a site.
Percolation tests must be carried out site in line with BRE Digest 365 to ensure that the ground is suitable for the use of soakaways.
In built up areas, towns and city's connection to public sewer is more common when the existing ground conditions do not permit the use of soakaways.
As the old septic tanks are being ruled out and technology continues to get better there are many options available to discharge foul drainage from your site.
Ultimately all future sites will either discharge to a package treatment plant or alternatively discharge directly to the public network.
When designing foul drainage whether the site is to remain private or to be adopted under a section 104 agreement the designing engineer always ensure that the most efficient method is adopted in discharging foul drainage from the site.
Ultimately all future sites will either discharge to a package treatment plant or alternatively discharge directly to the public network.
When designing foul drainage whether the site is to remain private or to be adopted under a section 104 agreement the designing engineer always ensure that the most efficient method is adopted in discharging foul drainage from the site.
A Section 104 agreement (under the Water Industry Act 1991) is an agreement between a developer and sewerage undertaker for the adoption of sewers serving a development.
There are strict regulations in place for obtaining an agreement which can be a minefield for developers.
The process is often on the critical path of a project and the decisions involved can have huge cost implications.
In Wales, the Mandatory Build Standards dictate that a Section 104 agreement needs to be in place before a development can progress.
There are strict regulations in place for obtaining an agreement which can be a minefield for developers.
The process is often on the critical path of a project and the decisions involved can have huge cost implications.
In Wales, the Mandatory Build Standards dictate that a Section 104 agreement needs to be in place before a development can progress.
That the alteration/removal is necessary to enable that developer to carry out a proposed improvement of the land in which he has an interest.
A sewerage undertaker is entitled to recover any expenses reasonably incurred in carrying out the alteration/removal of any relevant pipe or other apparatus.
Prior to any diversion being considered by the Water Authority, we would organise a written application including a location plan and site layout of the development, with details of sewer(s) crossing the site and the preferred route of diversion(s).
A sewerage undertaker is entitled to recover any expenses reasonably incurred in carrying out the alteration/removal of any relevant pipe or other apparatus.
Prior to any diversion being considered by the Water Authority, we would organise a written application including a location plan and site layout of the development, with details of sewer(s) crossing the site and the preferred route of diversion(s).
A Section 38 agreement is entered into and provides a method for a highway that has been constructed or that is to be constructed becomes maintainable at the public expense.
A publicly maintainable highway will in most cases include provision for drainage of the highway.
Adoption of a drainage system through a Section 38 Agreement is for a drainage system which drains an adopted highway only.
The drainage system only takes runoff from adopted (or prospectively adopted) highways and no private drainage or development drainage outfalls into the system.
A publicly maintainable highway will in most cases include provision for drainage of the highway.
Adoption of a drainage system through a Section 38 Agreement is for a drainage system which drains an adopted highway only.
The drainage system only takes runoff from adopted (or prospectively adopted) highways and no private drainage or development drainage outfalls into the system.
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