Water Specification [DOC] - City of Barrie

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B-4 City of Barrie Water Distribution Specification Section “B” - Design Criteria February, 2005 4.0 HYDRANTS 4.1 Hydrant flange elevations shall be set at a grade that will give a flange elevation of 50 mm to 100 mm above final grade. 4.2 Hydrants shall maintain a minimum of 1.5 metres clearance from the edge of driveways, roadways, utilities or other above grade obstacles. 5.0 RESTRAINING WATERMAIN Restrained watermain shall be used where any utility is located in excess of 5.5 metres below finished grade and future excavation may expose the watermain. Restraint on Ductile Iron watermain shall be obtained by using tie rods with bell clamps, complete with a welded ring by the manufacturer, on the spigot end of the ductile iron pipe. All steel rods shall be stainless steel. Restraint for PVC watermain shall be obtained by using restraining glands. Refer to BSD-47 showing a typical restrained watermain. 6.0 FITTINGS Mechanical joint Ductile Iron fittings shall be used on Ductile Iron watermain. Mechanical joint fittings or PVC push-on fittings that meet AWWA Specification C-907 and CSA B137.2 shall be used where applicable, on 150 mm to 400 mm in diameter PVC watermains. Should Ductile Iron mechanical joint fittings be employed, the Contractor shall install sacrificial caps on every bolt. PVC joints using mechanical joint fittings are to be square cut, not bevelled. 7.0 WATERMAIN OFFSETS 7.1 Typical watermain offset from property line shall be in accordance with the City of Barrie Road Allowance Specifications (see BSD-01 through BSD-7B and BSD-43). Anyone making a connection to the existing watermain distribution system must make an application to the City of Barrie for Municipal Consent. No construction shall begin without receiving City of Barrie Municipal Consent. 7.2 The standard offset of all watermains must be maintained on any curved line. Pipe deflection should be used wherever possible to minimize the use of bends. Wherever it is necessary to deflect from a straight line, either in the vertical or horizontal plane, the amount of deflection shall not exceed that required for satisfactory making up of the joint, as directed by the manufacturer. If, in the opinion of the City Representative the deflection is excessive, he will order the pipe removed and reinstalled with the use of bends and proper thrust restraint, in order to provide for acceptable deflection. Refer to the table and chart on pages B-6 through B-8.
B-5 City of Barrie Water Distribution Specification Section “B” - Design Criteria February, 2005 8.0 WATERMAIN BEDDING Watermain shall be constructed with beddings as per OPSD 802.010 (granular ‘A’ embedment material) for flexible pipes and OPSD 802.030 or 802.031 class ‘B’ (granular ‘A’ bedding material, granular ‘A’ or select native cover material) for rigid pipe unless otherwise approved by the Director of Engineering, or alternative embedment material. Alternative embedment material shall be sand meeting gradation requirements of OPS 1004.05.05 compacted to 95% Standard Proctor Density. Geotechnical certification of alternative material and compaction must be provided every 150 metres. The compaction testing must include the entire envelope (haunches, bedding and top of pipe). 9.0 SERVICES Residential - Refer to Section G General Service - Refer to Section H 10.0 SERVICE SADDLES Service saddles must be used on all PVC watermain and on ductile iron watermain where tapping size is 38 mm or 50 mm. 11.0 TAPPINGS 11.1 Ductile Iron watermain services larger than 25 mm require a tapping saddle and sleeve and shall be located at the 3 o’clock and 9 o’clock position. 11.2 On PVC watermain, tapping of 19 mm to 25 mm shall be at the 10 o’clock or 2 o’clock position. The tap must not be closer than 600 mm from the ends of the pipe. Avoid tapping into discoloured areas of the pipe and do not tap a curved pipe. All tappings on PVC watermain require saddles. 11.3 Tappings of 38 mm to 50 mm shall be at the 3 o’clock or 9 o’clock position. Only approved PVC tapping machines are to be used on PVC watermain by competent personnel and a protective blanket must be used if tapping under pressure. Extra precaution should be taken during installation in cold weather.
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Water Specification [DOC] - City of Barrie

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