Reso 2020-064 Engineers Report FY20-21 Heron Bay MAD No 96-3

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W W I LLDAN B. Mitigation and Monitoring Mitigation of the Heron Bay project was accomplished by re -construction of marshlands, tidal marshlands, and upland or high ground for wildlife habitat. In order to verify that the habitat is healthy and in order to identify maintenance requirements a monitoring report was prepared annually for the first 10 years after marsh construction, formal monitoring has ended. . C. District Reserve Fund A Maintenance Reserve Fund is maintained by the District in the amount of $300,000 to fund capital improvements and unexpected or emergency repairs. There have not been any withdrawals from the reserve fund this past fiscal year and none are anticipated for the coming fiscal year. D. Capital Improvement Projects Levee Maintenance 2020/2021 The nature of the levees that protect the Heron Bay marshland is such that they require periodic maintenance; specifically, the heavy stone rip rap that prevents erosion shifts, settles, or washes away and needs to be replaced. This work is most efficiently done by an outside contractor in large quantities. In fiscal year 2009-10 the Heron Bay Levee Maintenance account was established. Provided that there were funds available, the District contributed to the account each year. City staff, through a consultant, has obtained permits from various regulatory agencies that will allow repair of levee sections identified for maintenance. City staff on behalf of the District bid a repair project in the summer of 2019 within permit prescribed guidelines; however, mitigation measures required by the regulatory agency have pushed the construction phase of the project out to the fall of 2020. Levee repairs and related work can only be accomplished in the Fall between September and end of December. The project is currently estimated to cost $385,000 of which $140,000 has already been spent. The balance, $245,000, will be spent when the project goes to construction. Trail Maintenance City staff will periodically hire a contractor to complete pavement repairs on sections of the trail where tree roots have damaged the asphalt. The work will involve digging out small sections of pavement, trimming back tree roots and installing new asphalt patches. Shoreline Signs, Parking and Accessible Walkway In conformance with the City's updated permit with the San Francisco Bay Conservation and Development Commission (BCDC), wayfinding signage along the Bay Trail will be repaired or replaced since the existing signage has been worn by weather and sun - exposure. City of San Leandro Heron Bay Maintenance Assessment District No. 96-3 Page 5