Julia VanderkuylenEngineering Project Manager(705) 739-4220, ext. 4449Julia.Vanderkuylen@barrie.ca
Craig Thompson Engineering Inspector (705) 734-8524
This work provides cathodic protection to aging metallic watermains by exposing the watermain and welding on a zinc anode, which increases service life by preventing rust on metallic watermains.
The City of Barrie has approximately 177,700 m of ductile iron watermain, which represents nearly 30% of the city's water distribution network. Watermains made of this type of material are prone to corrosion-related physical failure. Ductile iron watermains are more prone to corrosion than non-iron pipes.
This results in damage to the pipe surface, including pitting, scaling, and other depressions, which eventually leads to cracks, holes and other physical failures as well as watermain breaks. This type of damage substantially reduces the maximum potential life of these watermains, resulting in increased operational and emergency repair costs as well as service disruptions.
Cathodic Protection involves the installation of sacrificial anodes connected to ductile iron watermains. The attached anodes will corrode rather than the watermain to which they are attached, thereby extending the life of the watermain.
This program is intended to apply cathodic protection to all ductile iron mains that are not otherwise proposed for replacement in other capital projects, and that fall within the recommended age (40 years or younger) to maximize the benefit of cathodic protection. Installation of cathodic protection is expected to increase the life of ductile iron watermains by up to 15 years.
The 2021 project includes the cathodic protection of approximately 11,000 m of watermain at various locations including the installation of approximately 960 anodes and 70 tests stations. The project also includes excavation and installation as well as restoration works.
Water service, Hydro, Telephone, Cable TV, and Gas services should not be affected by the construction, barring any unforeseen circumstances. Some temporary interruptions in the sanitary service will occur when the pipe liner material is curing. Residents will receive notices of the interruptions at least a day before they are scheduled to occur.
All reasonable efforts will be made to maintain vehicle access to driveways. However, there may be some temporary interruptions to access during construction while construction vehicles maneuver. Access will be restored as quickly as possible. The Contractor will provide prior notice of any imminent access restrictions to the businesses and residents.Pedestrian access to all homes and businesses will be maintained during construction.
On the normal curbside collection day, place all garbage, organics, recyclables and yard waste materials at the front of your property as usual. The City’s waste pickup contractor is anticipated to have access through the construction site. If the City’s waste pickup contractor does not have access, the construction contractor will remove these items and take them to outside of the construction zone, for pickup by the City’s waste pickup contractor.
Your garbage cans, organics bin and recycling boxes will be returned to your property later that day. Please mark your address on all of your containers.
It is very important that you take your refuse and recyclable items to the front of your property by 7:00 a.m., otherwise these items might not be picked up.
The contractor is required to conduct his work in a safe manner, including working in the middle of the roadway with through traffic. We ask that you take extra caution during the construction period to ensure everyone’s safety.Emergency ServicesAccess for emergency vehicles will be maintained at all times.
The contractor will use traffic control measures to permit through traffic through the construction site. Typically this will include using traffic cones to steer drivers around the contractor’s vehicles, which will frequently be parked in the centre of the roadway where sanitary maintenance structures (manholes) are. Occasionally, flag persons will be required to assist with traffic control.
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