Below in red are the responses to a series of questions that
Turnberry CT resident Greg Millen presented to the Rolling Ridge Project
engineer Kristian Nysome. If you would like to be added to the email
list for updates from Kristian Nysome, feel free to email him using the
contact info. at the bottom.
Hi Greg,
See below, in red, for responses.
1. What is planned for the restoration of the creek area?
A native grass seed mix will be used for the ditch side slopes and the bottom will contain 4”-8” diameter natural stone.
2. Will it include not just grasses and some terrace trees but various tree species that restore the character and uniqueness of the neighborhood?
The City is planning to plant new trees along the terrace upon completion of the project. Species of tree to be planted is TBD by City Forestry
as they are experienced at selecting tree species that best fit the neighborhood they will be planted in.
3. Who will maintain the areas?
The City will be responsible for maintaining the drainage ditch per stormwater best management practices.
4. Will the residents see a planned mock-up of the restoration before the work begins?
A set of plans is available upon request, but an artistic rendering is not available.
5. Will the residents and/or HOA have any input?
No, restoration guidelines were established in conjunction with the WDNR.
6. If the new depth of the open creek proves to be dangerous (too close to the sidewalk) will the city install fencing?
The proposed ditch grading will make the side slopes more gradual than the existing condition. The need for fencing will be evaluated upon completion of the project.
7. Since the City is the owner of the "navigable" waterway, will the small trees currently growing in the ditch near Dartmoor Ct. be removed by the City?
This is not anticipated as part of this project at this time; however, the area will be monitored and work may be planned in the future if any issues, such as erosion, arise.
Lastly, many residents are asking the question why this was necessary? We understand the degradation of the creek and larger culverts for water control, but flooding has not been an issue for the 40+ years we've lived in this area. A brief explanation from the City would help the residents to understand the necessity for the scope of this project.
The purpose of this project is to alleviate flooding issues that are experienced along and downstream of Rolling Ridge Drive during heavy rain events. This area was identified by City residents that were experiencing flooding. The areas were also identified and analyzed in the City-Wide Storm Water Management Plan (2014), in the regions referred to as Areas 1 & 2. This was further analyzed in 2017 as part of the preliminary design. This project is a continuation of the work in 2020 which replaced the undersized culverts at several locations along Rolling Ridge Drive as well as work completed as part of the Waukesha West Bypass. The City-Wide Storm Water Management Plan (2014) and the Area 1 and 2 Flood Mitigation Alternatives Analysis Report (2017) can both be found at https://waukesha-wi.gov/496/Flooding.
Thanks,
Kristian Nysome
Project Engineer
City of Waukesha – Engineering Division
201 Delafield St. Waukesha, WI 53188
O: (262) 524-3578
M: (262) 225-8327
Email: KNysome@waukesha-wi.gov
