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HomeMy WebLinkAboutItem 08 Notification of Emergency Sewer, Manhole, and Road Repair at the Intersection of West Colonial Drive (SR 50) and Bluford Avenue per Emergency Notification – Chapter 21, Section 21.6, City of Ocoee Code of Ordinances ocoee florida AGENDA ITEM COVER SHEET Meeting Date: March 17, 2019 Item # Reviewed By: Contact Name: Jamie Crote.,L1 Department Director: -, -.E. Contact Number: 407-905-3159 City Manager: Ro. /""fro" Subject: Final Notification on the Emergency Sewer, Manhole, and Road Repair at the Intersection of W. Colonial Drive & Bluford Avenue per Emergency Notification — Chapter 21, Section 21.6, City of Ocoee Code of Ordinances. Background Summary: At the November 5, 2019, Commission Meeting, staff notified the Commission of the need for an emergency sewer repair at the intersection of West Colonial Drive (Colonial) and Bluford Avenue (Bluford). Staff became aware of the situation October 9, 2019, when a City employee reported a depression in the northern most travel lane of Colonial, just west of Bluford. The depression was located near a City sanitary sewer manhole. Upon inspection, it appeared that the manhole had settled causing a failure in a connecting pipe, which allowed ground water to infiltrated the manhole. Due to the depth and complexity of the repair, the City requested the services of J. Malever Construction (Contractor). On October 10, 2019, the Contactor mobilized on site. The Contractor worked with the City and FDOT to inspect the site and develop a plan for repair of the roadway. During this inspection it was discovered that the issues with the roadway required a more in-depth investigation in order to develop a repair plan. The City's geotechnical contractor provided inspection and testing services of the site and upon review of the information, FDOT responded to the site with their own geotechnical team to do further testing. FDOT used their ground penetrating radar to assess the soil density. The City, FDOT, and the Contractor hoped that the structure could be stabilized though pressure grouting - the quickest and easiest solution. Unfortunately, the pressure grouting failed, requiring the need to open cut the roadway to perform the repairs. The location, and the 18-foot depth of the piping and structures, made this a difficult task requiring 24 hour-a-day sewer bypass pumping, dewatering of the worksite, the use of trench boxes and an extensive Maintenance of Traffic program. The repair also impacted fiber optic lines and the signalization of the intersection. In total the project included removing two manholes, installing two new manholes, laying 114 linear feet of new gravity sewer, installing 1700 feet of fiber optic line, and repairing the roadway, sidewalk, ADA ramps and curbing. To improve the longevity of the system, the City also lined over 200 feet of sewer pipe and the two new manholes. The repair, from notification to the intersection re-opening, took approximately 3 months and cost the Utilities Department $769,653. Issue: Final notification to Mayor and City Commission of the Emergency Repair to Sanitary Sewer Main and Manhole at S.R. 50 and Bluford Ave. Recommendations No action or motion required. Attachments: Emergency Notification Memorandum — 11/5/2019 Financial Impact: Of the $769,653, a portion, $150,000, will come from the current budget for Gravity Main Repair and/or Lining Program. The remaining, $619,653, for the repair will come from Utilities Repair & Replacement Fund (Fund 407). Utilities sets aside funds, and maintains a reserve, in R&R for emergency incidents. Type of Item: (please mark with an `x') Public Hearing For Clerk's Dept Use: Ordinance First Reading XConsent Agenda Ordinance Second Reading Public Hearing Resolution Regular Agenda ic Commission Approval Discussion&Direction Original Document/Contract Attached for Execution by City Clerk Original Document/Contract Held by Department for Execution Reviewed by City Attorney N/A Reviewed by Finance Dept. N/A Reviewed by 0 N/A 2 Mayor Commissioners Rusty Johnson Larry Brinson Sr,District 1 4.044, Rosemary Wilsen,District 2 City Manager Ocoee Richard Firstner,District 3 Robert Frank George Oliver, Ill District 4 flo►ida MEMORANDUM TO: Robert Frank City Manager THRU: Craig Shadrix Assistant City Manager FROM: Charles K. Smith, P.E. Utilities Director DATE: November 5,2019 RE: Emergency Repair Notification Bluford and Highway 50 Please provide notification to City Commission of the Emergency Repair to the Gravity Sanitary Sewer System in the North Half of Bluford Ave and State Road 50 Intersection. I will be present to answer questions. The following is a brief discussion of the situation: On October 9, 2019, an Employee with the City reported a depression in the northern most travel lane of Highway 50, just west of Bluford Avenue. The depression was located near a City sanitary sewer manhole. Upon inspection, it appeared ground water and soils was infiltrating into the manhole. Sewer flow was quickly diverted away from the manhole to allow for a more thorough inspection of the structure. Upon inspection, the manhole showed significant failures and required emergency repair. The City requested the services of J. Malever Construction (Contractor) due to the depth of the repair (18 feet) and scope of work required for the repair. On October 10, 2019, the contactor mobilized on site. The contactor stopped the ground water infiltration and then lined the entire interior of the structure to prevent any further issue. The Contractor worked with the City and FDOT to inspect the site and develop a plan for the roadway repair. During this inspection it was discovered that there are issues with the road requiring a more in-depth investigation in order to complete the work. The City's geotechnical contractor provided inspection and testing services of the site and upon review of the information, FDOT responded to the site with their own geotechnical team to do further testing. City of Ocoee Utilities• 1800 A.D.Mims Road- Ocoee, Florida 34761 Phone: (407) 905-3159 •Fax: (407) 877-5899•www.ocoee.org Last week FDOT's geotechnical team indicated they found no voids but had a concern about the soil structure above the City's sewer main. On Monday the Contractor attempted to address the pavement depression by pressure grouting (liquid concrete) under the roadway. During the pressure grouting process either the sewer main and/or manhole connection failed allowing grout to intrude into main. Due to the depth of the main, the grout could not be removed by pumping and washing the grout further down the system was unacceptable. The cure is replacement of the impacted main and manhole by excavation. This will require a more extensive repair and include closing to traffic the northern half of the Bluford and Highway 50 intersection. In reviewing this situation, it is important to note that this is one of the older sections of sewer in Highway 50 and was originally on the shoulder of the roadway. With improvements to the roadway, the structure became part of the northern most travel lane. Utilities is aware of the disruption this closure will have on traffic; with the assistance of the Contractor and FDOT the work needed will be completed as quickly as possible.