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HomeMy WebLinkAboutFCS-18-037 - Encroachment Request - 24 Gaukel StreetREPORT TO: Committee of the Whole DATE OF MEETING: April 16, 2018 SUBMITTED BY: Erin Mogck, Associate CitySolicitor (519-741-2200 ext.7060) PREPARED BY: Erin Mogck, Associate City Solicitor (519-741-2200 ext.7060) WARD(S) INVOLVED: 9 DATE OF REPORT: April 10, 2018 REPORT NO.: FCS-18-037 SUBJECT:Encroachment Request – Shoring Tiebacks – Below Gaukel Street and Hall’s Lane – Momentum Development at 24 Gaukel Street _____________________________________________________________________________ RECOMMENDATION: That the Mayor and Clerk be authorized to execute an Encroachment Agreement, satisfactory to the City Solicitor, with the developer of the property municipally known as 24 Gaukel Street to permit shoring and the installation of tiebacks below Hall’s Lane West and Gaukel Street. BACKGROUND: Shoring and tiebacks are required to allow for the construction of a two-level underground parking garage for a condominium development in the downtown core located at 24 Gaukel Street, near the intersection of Gaukel Street and Charles Street West. REPORT: Momentum Developments requires the ground to be temporarily supported during the excavation and construction of the building foundation, otherwise known as shoring. Momentum Developments will construct a two-level parking garage below ground. To achieve shoring stability when pouring concrete foundations, tiebacks are also necessary. Tiebacks will be installed under the City’s Hall’s Lane and Gaukel Street. These are structural elements that will transfer load into the ground. There are approximately 37 tiebacks to encroach on Gaukel Street and Hall’s Lane. Engineered drawings were circulated to staff and external utility companies. KW-Hydro identified the location of several deep pull boxes and transformer vaults and met directly with the developer to discuss any concerns. Momentum Developments will maintain a 1 metre buffer around any KW-Hydro infrastructure. *** This information is available in accessible formats upon request. *** Please call 519-741-2345 or TTY 1-866-969-9994 for assistance. 5 - 1 Prior to excavation, the shoring permit must be approved by the Building Department. If shoring works cease, a cost estimate must be approved by City staff to bring the site to a safe condition; in addition, a letter of credit must be posted according to the City’s Letter of Credit Policy. There should be no damage to City infrastructure as the proposed crossing locations of the tiebacks are a minimum of 1.0m below municipal sanitary, storm and watermain infrastructure. As assurance, CCTV of the existing sanitary and storm sewers will be undertaken pre-tieback and post-tieback installation. An “as-built” drawing will be provided by the developer to City staff, showing the locations of tiebacks in relation to existing municipal sanitary, storm and watermain infrastructure for the City’s future reference when working on City infrastructure. There are watermains within Gaukel Street and Halls Lane. The Developer’s contractors will monitor the vibration during the installation to ensure that the watermains remain unaffected. Once the foundation of the new building has been completed the tiebacks will no longer be required. The shoring will be removed; however, the abandoned tiebacks will remain under the Gaukel Street and Halls Lane right-of-ways. The tiebacks can be removed at any point in the future when work performed under the roadway. ALIGNMENT WITH CITY OF KITCHENER STRATEGIC PLAN: The recommendation outlined in this report supports the achievement of the City’s strategic vision through the delivery of core service. FINANCIAL IMPLICATIONS: All legal fees associated with the application of this encroachment has been paid. The processing fee of $235 will become payable after Council approval. COMMUNITY ENGAGEMENT: INFORM – This report has been posted to the City’s website with the agenda in advance of the Standing Committee. ACKNOWLEDGED BY: Victoria Raab, General Manager of Corporate Services 5 - 2