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Home My WebLink About08_NCS000467_Public Works Stormwater Maintenance SOP_20211208r- TOWN of WAKE FOREST 301 S. Brooks Strcc[ Wake Forest, NC: 27587 i 919) 435,9400 i1,ii'1'lol"C'yt[l( ?;f11' Public Works' Stormwater Maintenance — Standard Operating Procedures Stormwater Maintenance Goal The Town of Wake Forest is committed to maintaining our stormwater system so it can operate at full capacity and efficiency. Properly maintaining and inspecting our stormwater system helps protect the Town's waterways by eliminating pollutants from entering the system and protecting downstream systems from erosive velocities. The Town of Wake Forest has over 19 square miles of storm sewer service area. Existing infrastructure is documented in the Town's Stormwater GIS database. Stormwater maintenance is performed by a dedicated Public Works Department's Street Crew. Town Staff & Responsibilities The Public Works Department and the Engineering Department work together to provide stormwater maintenance. The Street Superintendent is ultimately responsible for Stormwater Maintenance Crew, as well as the Street Sweeping Schedule. However, the Stormwater Maintenance Supervisor is responsible for setting a productive schedule of maintenance activites based on crew availability, priority, length of project, weather, and equipment available. The Stormwater Engineers coordinate regularly with both the Street Superintendent and the Stormwater Maintenance Supervisor to identify maintenance projects and determine an appropriate scope of work. Stormwater maintenance is performed on a daily basis, with a continuous backlog of projects developed from the priorities and neighborhood inspections described below. Priorities The main priority of the stormwater crew is to respond to resident complaints that are received via SeeClickFix, or through a Town employee. The crew often evaluates adjacent infrastructure when performing maintenance to ensure that an entire neighborhood is inspected and maintained. Therefore many maintenance items are completed from self -inspection and reporting. Flood prone areas are also noted in our Stormwater GIS system and are visually monitored and inspected during rain events. Any significant issues with the system are documented and assessed by the Town's Stormwater engineer. These issues may be added to the Town's Capital Improvement Plan so that funding can be set aside for completion in the future. Additionally, if the issues fall outside of routine maintenance but 7/14/2021 TOWN of 301 S. 13rot iks tirrev r Wakc I orest. \C 27587 WAKE FOREST d 1)435.9400 can not be included in the CIP, the Town may assess different funding sources such as stormwater grants or NCDOT cost -share. Neighborhood Inspections The stormwater maintenance crew performs neighborhood inspections on a rotating basis. The number of neighborhoods inspected and maintained each year varies based on the age and size of each neighborhood. Newly built neighborhoods are not scheduled for a stormwater inspection until 5 years after final acceptance from the Town. When a neighborhood is scheduled for inspection, the stormwater crews evaluate the stormwater infrastructure within the public right-of-way and public drainage easements. Many times the Town's maintenance terminates at the end of a pipe.. Coordination with the HOA or private property owner is completed by the stormwater engineer to ensure the entire stormwater system is inspected and repaired. Private residential encroachments within public drainage easements are noted and residents are made aware of the Town's encroachment policy. Once all maintenance work is completed by the Town's stormwater crew and the HOA/private owner a final inspection is completed and the neighborhood is marked complete. The Town tracks the date of neighborhood final inspections, with the goal of revisiting each neighborhood once every 5-10 years as proactive stormwater maintenance. This allows us to keep our public drainage easements cleared and accessible, while also noting the condition and capacity of the infrastructure before costly repairs or upgrades are needed. Available Equipment & Training The Town of Wake Forest owns a variety of equipment to aid in maintaining our stormwater infrastructure. We own a storm sewer video camera which integrates with our stormwater GIS system. We also own a }etter, vacuum truck, excavator, and backhoe. Any necessary equipment not owned by the Town may be rented to complete required maintenance. The stormwater crew supervisor and construction inspectors are SCM Inspection and Maintenance Certified. All Town employees receive stormwater training on Illicit Discharge Detection & Elimination and Spill Response procedures. The goal of the training is to raise awareness and motivate all Town staff to look for and report stormwater- related issues. Stormwater Control Measures (SCMs) Town owned stormwater Control Measures (SCMs) are inspected on an annual basis by a certified employee and recorded in the NewWorld Application. Maintenance items resulting from the annual inspections are reviewed by the stormwater engineer. Based on the complexity of the recommended repairs, the work may be completed internally or contracted out. If maintenance will be completed by Town staff, a work order is developed in the Mobile 311 system. Please see the Records section below. 7/14/2021 ih TOWN of 301 4_ Brooks S€rcc€ WAKE FOREST i )I,,) 435,9400 Privately owned SCMs must have a signed and recorded O&M Agreement with the Town and are required to submit an annual report with inspection records. Section 12.5.5 & 12.5.6 of the Unified Development Ordinance addresses Standards for Stormwater Control Measures and Operations Maintenance and Inspections. Both the Town and privately owned SCMs are required to follow these regulations. Random audits of these reports are performed by the engineering staff. Please see the Engineering Inspections SOP for additional information. Major Outfall/ Dry Weather Flow Inspections The Town also completes major outfall inspections and dry weather flow inspections on all major outfalls once every 5 years. The goal of these inspections is twofold. First, it aids in detecting and elminiating illicit discharges to the system. Second, it allows the Town to catalog a condition assessment of our infrastructure. These inspections create a backlog of maintenance items for our crews to complete. Please see the Engineering Inspections SOP for additional information. Tree Clearing in Public Drainage Easements Per the UDO Chapter 6.10.E., all Public Drainage Easements shall be kept free of obstruction. Trees that have grown large enough in diameter that prevent the access to and maintenance of our stormwater infrastructure should be cleared by the Town. The Town's Stormwater Maintenance Manager and Urban Forester should coordinate the removal of overgrown vegetation and/or landscaped areas that limit our ability to inspect or provide maintenance. Drainage easements that are provided for the purpose of dedicating a drainage path of stormwater may allow tree growth and vegetation, as long as it does not disrupt the flow of stormwater. Records Work orders created in Mobile 311 allow the stormwater crew to schedule, track, and budget for stormwater maintenance. These work orders are created by the Public Works Streets Supervisor who manages the crews workload. Major outfall/ dry weather flow inspection records and SCM inspections are kept in the NewWorld application. Public and private drainage easements are shown in the Stormwater GIS, which helps our crews determine maintenance responsibilities. If privately owned stormwater infrastructure requires maintenance, a letter is sent to the responsible party. We also keep an inventory of videoed storm sewers in our online database in the WinCan software. 7/14/2021