**Document:** Consultation 2 Highway Drainage **Application:** 24/10042/AIR — Information in relation to conditions 3 & 5 for PA 23/00069/B - Drainage plan for the access road and soft and hard landscaping for the eastern boundary for Lancashire House, Main Road, Santon. **Decision:** Permitted **Decision Date:** 2024-07-10 **Parish:** Santon **Document Type:** consultation / highways_response **Source:** https://planningportal.im/a/32566-santon-furness-cottage-dwelling/documents/1065097 --- # Consultation 2 Highway Drainage ## Spencer, Daniel From: Kershaw, Chris Sent: 07 May 2024 16:19 To: Spencer, Daniel Subject: RE: AIRC Number 24/10042/AIR and 24/10043/AIR Follow Up Flag: Follow up Flag Status: Flagged Hi Daniel, The private access road to the two properties is shown to fall away from the public highway so surface water (SW) runoff from it will not drain onto the highway. In this respect we are satisfied with the proposals. As this is a private access road we have not reviewed or approved the drainage system serving it. We presume this will be the responsibility of Building Control? If we were checking a highway drainage system for adoption we'd expect to see drainage plans showing pipe sizes, pipe gradients, manhole and gully locations with impermeable areas draining to each gully in accordance with MfMR or DMRB CD 526 together with surface water runoff calculations to DMRB CG 501 Design of Highway Drainage Systems. Also, the soakaway tests the applicant has carried out are based on the design of foul field drains in Part H2 of the Building Regulations and are inappropriate especially considering the area to be drained. Three test should be carried out in accordance with BRE Digest 365 or CIRIA Report 156. See Building Regs Part H3 section 3.24 and 3.30. Kind regards Chris ‐‐‐‐‐Original Message‐‐‐‐‐ From: Spencer, Daniel  Sent: 03 May 2024 10:53 To: Kershaw, Chris  Subject: AIRC Number 24/10043/AIR has been received. An application for information related to a planning condition(s) has been received that relates to your area of interest. DEFA P&BC encourages you to view the application detail and invites your comment on the consideration. Kind regards FOR DEFA P&BC MA,SENDMODE=MANUAL --- *Data sourced from the Isle of Man public planning register under the [Isle of Man Open Government Licence](https://www.gov.im/about-this-site/open-government-licence/).* *Canonical page: https://planningportal.im/a/32566-santon-furness-cottage-dwelling/documents/1065097*