Jollimore – Linda Mosher http://lindamosher.ca Fri, 07 Oct 2016 12:09:18 +0000 en-US hourly 1 https://wordpress.org/?v=4.6.28 Northwest Arm Seawall Restoration – Phase 4 http://lindamosher.ca/northwest-arm-seawall-restoration-phase-4/ Mon, 18 Jul 2016 18:58:02 +0000 http://lindamosher.ca/?p=1175 Over the past several decades, our seawalls along the Northwest Arm, including Horseshoe Island, Regatta Point and the Dingle, have deteriorated. In the last decade, the severity of storms combined with sea-level rise have exacerbated the condition of the walls and the issues came to the point where major restoration work was required.

The seawall at Sir Sandford Fleming Park (Dingle) has seen the most damage. It is more than 60 years old and was built using traditional methods, which did not take into account the rising sea levels. After severe storms such as Hurricane Juan, we hired a consultant to evaluate the damage to the walls and paths due to flooding, wave actions and sea-level rise. The distinct, quarried stone seawalls were evaluated to determine how to rebuild them to last for another 100 years. The study took into account storm waves, high water levels and anticipated future sea-level rise and other climate changes. The consultant report conducted by Coldwater Consulting, entitled the Northwest Arm Shoreline Restoration Study Technical Report can be viewed atwww.lindamosher.ca under the news tab.

After the consultant was finished with their evaluation, I held a public meeting to present the various options the consultant provided to rebuild the wall. The vast majority of residents indicated their preference for rebuilding with natural granite versus an engineered wall. The natural granite walls are the most expensive option, but are aesthetically pleasing and reflect the historic integrity of the Northwest Arm area.

As per the other phases of the seawall restoration, the wall will be made of granite stone. It will be approximately 120 metres long. The height of the wall will be increase to the same elevation of the wall of the previous phases, along with a three-metre-wide asphalt trail. Two culverts will be replaced along the wall. A third culvert will also be replaced along the trail leading up to the wall (approximately 70 m to the southeast). Work on the seawall will commence in the fall. The seawall at Regatta Point has continued to deteriorate and HRM is completing a coastal assessment of the walkway to develop solutions and cost estimates. Staff anticipates a report by September with recommendations on shoreline and walkway protection measures. Wave action and seawall protection will be examined as part of this work. Funds will be recommended for the capital budget.

We are also repairing the boat launch at the Dingle as part of the same tender as phase four of the seawall replacement. The seawall, which is being replaced contains several pieces of granite curb stone. We will be recycling this material as the new boat ramp surface. Generally the work involves replacing the existing concrete boat ramp surface in the same location. Construction for the boat ramp is also scheduled for the fall of 2016. There will be considerable activity at several areas within Sir Sandford Fleming Park at this time: construction of the new natural playground, seawall restoration and new boat ramp surface, so please plan your outings in the park accordingly.

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NORTHWEST ARM SEAWALL RESTORATION http://lindamosher.ca/northwest-arm-seawall-restoration/ Wed, 06 Jul 2016 11:47:04 +0000 http://lindamosher.ca/?p=1088

The seawall at Sir Sandford Fleming Park (Dingle) has been failing. It is over 60 years old and was built using traditional methods which did not take into account the rising sea levels. After severe storms such as Hurricane Juan, we hired a consultant to evaluate the damage to the walls and paths due to ooding, wave actions and sea-level rise. The distinct, quarried stone seawalls were evaluated to determine how to rebuild them to last for another 100 years. The study took into account storm waves, high water levels and anticipated future sea level rise and other climate changes. We also held a public meeting to present the various options the consultant provided to rebuild the wall. The vast majority of residents indicated their preference for rebuilding with natural granite versus an engineered wall. The natural granite walls are the most expensive option but re ect the historic integrity of this park.

Recently Council awarded phase 3A and 3B of the Northwest Arm seawall restoration to Lange’s Rock Farm Construction Limited.

They were the lowest bidder meeting tender speci cations and their bid came within 1.5% of our engineering estimates ($660,130.38). This company did Phase 2 of the project and they have extensive experience working with natural granite.

One section is 40 meters in length and is located left of the supervised beach area. The other section is 130 meters and is to the left of phase one, below the bandstand area. This section is failing in many spots and granite rocks are falling into the arm. The scope of the work includes construction of a granite rock seawall, asphalt walkway, drainage and associated reinstatement. Due to tidal zone and weather restrictions there is limited time to complete the project. It is anticipated phase 3A will be completed by September 15, 2015 and Phase 3B will start by April and be completed by the end of June 2015. Lange Farms is starting to bring in granite stone in and it will be stored in the lower parking lot to ensure it is on-site prior to the weight restrictions that are put on the roads.

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