41st Parking Lot Reconstruction

During the April 2019 flood of McKay Creek, water was running down SW 41st Street and completely inundated the parking lot at the north end of SW 41st Street in Community Park. This inundation caused settlement and sinkholes in the parking lot, making it not drain correctly and unsafe to drive across in areas, and settlement in the already aging curbing. Also, the creek inundated the 42” diameter storm water pipe that discharges into McKay Creek on the west edge of this parking lot that comes from SW 37th Street and SW Marshall Place. When this pipe became inundated, water backed up to SW Marshall Place and spilled out and into driveways and down into garages.



FEMA was consulted about the damage, and the City was grated $75,000 to repair this parking lot. However, it was determined by staff that a backwater valve should be placed near the end of this storm line so that high creek flows would not back up the line and inundate private property and garages. To install this backwater valve, the large storm line had to be relocated and a vault installed with the valve. The new alignment for this large diameter storm line would be through the parking lot. Also, FEMA has stated that the work on the parking lot must be completed by July 2023 in order to receive the grant dollars.



Public Works staff has removed the damaged portions of the parking lot and curbing, installed the new storm pipe and the new vault/valve, and has begun the installation of the base gravel for the parking lot. This contract will be to complete the parking lot project by installing new curbing around the lot and placing asphalt pavement for the new parking lot.



Staff has informed the contractor in the contract of the accelerated timeline, and hopes to have our portion of work completed by the time this report is presented. If the contract can be executed quickly, we expect the contractor to start their work in a week or so, and for the work to be completed in June.