Consideration of a motion to approve expenditure in the
amount of $13,383 for the emergency restoration of the Tara Hill berm adjacent
to
A special service area exists in the Tara Hill subdivision. Those residents pay a special property tax that is used for the maintenance of 3 detention basins in the Tara Hill subdivision which are owned by the City.
During October 2009 the City experienced a total rainfall of approximately 5.5 inches. On October 30, 2009, Staff was called out to inspect the Tara Hill detention basin adjacent to Donegal Drive. During our inspection we observed three areas where storm water was overflowing the detention basin causing flooding in the area adjacent to the basin. Staff identified a blockage in the pipe as a major cause of the poor drainage. However, Staff was also concerned since it appeared the basin was not operating as it was designed to do. Due to the banks of the detention facility overflowing the City Engineer was directed to perform a topographic survey of the existing conditions and compare those to the original design plan. The topographic survey revealed that the banks were lower then the design plan resulting in water overflowing at the wrong place. Working with our City Engineer, he recommended a plan to correct the basin problem. The plan included raising the low spots and re-ditching the correct water overflow route. On January 7, 2010 Staff approved a competitive quote for the excavating equipment and operators on a per hour basis in an amount of $4,788.00. The final amount of our hours exceeded our initial estimate resulting in a total excavating cost of $6,583. The City Engineer has verified the cuts and fills have been restored in accordance with the design plans. The total project cost is estimated at $15,383 which includes:
Excavating equipment and operators- Completed $6,583
Stone for storm water outlet structure February $1,000
Burke- finished elevation grades and provide plan In Process $1,800
Restoration to basin April $1,500
TOTAL-----------------------------------------------------------------------------------$13,383
This project was done on an emergency basis and in separate stages. However, the excavating/operator cost exceeded $5,000 so staff is asking for formal approval by the Council. This repair is estimated to reduce the fund balance in SSA to approximately $800.
Administrative/Finance Committee
and Staff recommend approval of the expenditure in the amount $13,383 from the
Tara Hill SSA fund for the emergency restoration of the Tara Hill berm adjacent
to
No alternate consideration as project was completed on an emergency basis
This item will be placed on the February 16, 2010 City Council agenda for formal consideration.
