Lantern_Park_Stomrwater_Improvements_Project_Description.docx

Transform 386 - City of South Daytona Lantern Park Stormwater Improvements Design Scope of Work

PROJECT DESCRIPTION

Lantern Park is a 168-home subdivision located off of Reed Canal Road in South Daytona. The subdivision was constructed in the 1960’s without a stormwater pond. Stormwater is collected in a series of inlets that direct water to two large pipes run side-by-side along the western edge of the subdivision. One of the pipes is a 42-inch and the other next to it is a 48-inch pipe. These two large pipes flow towards the north and empty into Reed Canal.

Prior to Hurricane Ian in 2022, the City purchased a 1.42 acre vacant track at the front of the subdivision and constructed a stormwater pond. The pond has a pump station that conveys water into Reed Canal before, during and after a storm. During Hurricane Ian, the pond became overwhelmed and the majority of the homes located here flooded. During Hurricane Milton, the pond once again became overwhelmed and most of the homes that flooded during Hurricane Ian flooded yet again.

The proposed improvement project involves the purchase of adjacent vacant land to construct a second stormwater pond to provide enough storage capacity with the ultimate goal to keep water out of the homes in this subdivision. The pond must have a pump station which is capable of lowering the proposed pond before a storm and run continuously during and after a storm until the roads are cleared. The pump station must have a generator set at an elevation higher than the proposed flood stage so it can continue to work even though the surrounding ground may be flooded. The generator must have the capability to run the pump station for at least 12 hours before needing to be refueled. The pond must have a gravity discharge (outfall) and a force main (for the pump) connected to Reed Canal. In addition, stormwater from the adjacent Harborside subdivision is known to overflow into Lantern Park exacerbating the flooding and the resident’s desire a concrete wall to be constructed to prevent the water from the neighboring subdivision from overflowing.

PROJECT COST

The total cost of the project (including land purchase, design, geotechnical, environmental, inspection and construction) is $3,150,000. Since this is a smaller subdivision and City staff is extremely familiar with the drainage within it, we do not need a comprehensive study of the entire area at a huge expense for the design. The selected consultant must focus on the design and permitting of a stormwater pond, pump station, outfall pipe, force main and a length of concrete wall to complete this project. The majority of the funds are expected to be spent on the land acquisition and construction of this project; not on a study.