Entrance and Culvert Requirements

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All entrances must be constructed by the owner at his/her cost and shall be installed to the following specifications:

Entrance Culvert:

  • new steel culverts only
  • minimum culvert size shall be 18” (450 mm) diameter and 30’ (9 m) in length
  • couplers shall be a 5 corrugation bolt up coupler
  • no sheet metal, dimple type couplers will be allowed

Backfilling:

  • granular “A” gravel shall be used around the culvert and for the top surface of the entrance
  • leave 2’ – 3’ of culvert exposed at each end with a 2:1 backslope
  • 12 inch (300 mm) of fill over the top of culvert (minimum)
  • must be installed to warrant the drainage flow

Size of culvert may vary due to drainage requirements.  Any variation in culvert size will be determined by the Public Works Department.  For additional information or to arrange an on-site meeting, please call the Township of Alnwick/Haldimand Public Works Department at 905-349-2700.

 

Entrance Permit Application

 

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Municipal Office, 10836 Cty. Rd. 2, PO Box 70 Grafton ON K0K 2G0 Tele: 905-349-2822 Fax: 905-349-3259

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