URBANDALE PLANNING AND ZONING COMMISSION MINUTES. November 26, 2018

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1 URBANDALE PLANNING AND ZONING COMMISSION MINUTES The Urbandale Planning and Zoning Commission met in regular session on Monday,, at the Urbandale City Hall, th Street. Chairperson Jeff Hatfield called the meeting to order at 6:00 p.m. Commissioners present were Wayne Van Heuvelen, Julie Roethler, Kevin Gass, Judy Ralston-Hansen, Joan Racki, and Jeff Hatfield. Staff members present were Kristi Bales, Community Development Manager/Chief Planner and Cheryl Vander Linden, Administrative Specialist. The first item on the agenda was approval of the minutes of the November 12, 2018 meeting. Mr. Gass moved, and it was seconded by Roethler, to approve the November 12, 2018 meeting minutes. On roll call; Ayes: Roethler, Racki, Hatfield; Passes: Van Heuvelen, Gass, Ralston-Hansen; Nays: none. Motion carried. The first item on the agenda was the Urbandale High School Fitness Center Addition Site Plan No (7111 Aurora Avenue) Ms. Bales said this site plan proposes the construction of an approximately 18,000 square foot addition to the west side of the south-end of the Urbandale High School building. The addition is designed to match the existing building, using materials of brick, glass, and metal panels. The proposed addition would primarily be for a weights/fitness center, but also includes a multi-purpose room, concessions, restrooms, and support spaces. The proposed fitness center addition is not associated with any proposed increase to the quantity of students or staff at the high school, and does not appear to substantially impact the operation of the school or the site. There is no impact on the minimum parking calculation, and the existing parking lot will not be encroached-upon by the addition. A Conditional Use Permit was granted for the addition by the Urbandale Board of Adjustment on November 7, 2018, subject to site plan approval. The required additional stormwater detention will be provided at the far-western end of the property just to the south of the baseball field. The property is zoned R-1S Suburban Density Single Family District, as are the properties to the south, east and northeast. Properties to the west and northwest are zoned R-1I Intermediate Density Single Family District. Ms. Bales said Staff recommends approval of the site plan, subject to the following

2 Page 2 requirements: 1. Verify ADA ramps within the ROW adjacent to these improvements are in compliance, and replace the ramps if necessary. Show erosion control measures, a standpipe or other protection will be needed for the storm basin outlet. Please be aware that additional exit doors may be required for the north portion of the addition to accommodate existing and proposed occupants and that the current building code will not require a storm shelter. 2. Provide elevation shots for basin outlet FL, weir opening, and along top of berm to verify berm height and overflow locations. 3. Drainage Report: Provide calculations for Discharge Point 1 in the format outlined in SUDAS section 2A-4, including tables similar to SUDAS Table 2A- 4.01, 4.02, and 2G-1-B.3b. Include drainage maps with the pre-development and post-development drainage areas labeled. Add as an appendix the previous 2012 calculations and a PDF of the 2-year, 5-year, and 100-year reports from HydroCAD. Include report to justify soil type. Provide calculations for new storm sewer and ponding at intakes. Submit Drainage Report to stormwater@urbandale.org; a hard copy is not required. 4. Provide a Stormwater Facility Maintenance Agreement (template provided by the Community Development Dept.) for the detention basins per the Post Construction Stormwater Ordinance. 5. This site will require an as-built, including elevation shots of the basin and berm. At the time of the site as-built, provide signed calculations showing basin volume calculations by the contour-area method, and provide a signed affidavit that the storm water detention facility has been constructed in substantial conformance with the approved plan and confirming installation of orifice plates. Ms. Ralston-Hansen asked is there a correlation between the storm water retention and the addition? Or is it just because they re going to mess things up, so they re going to do them both at the same time? Ms. Bales said no, I believe it s done because they re creating more impervious surface. It s to increase the capacity. And likely over time they ve found that some of it has kind of closed in anyway. So they re doing it to take that in. Mr. Van Heuvelen asked so, is the water going to flow across the parking lot? Is that the idea, to the storm water detention? Ms. Bales said they ll take into analysis the whole drainage basin, but I ll have Mr. Beron speak to the specifics of it, if he doesn t mind.

3 Page 3 Mr. Eric Beron, DLR Group, 1430 Locust Street, Suite 200, Des Moines, said yes, to give you a little background, the high school was reconstructed basically between 2006 and They were in multiple need of additions and phases. This area down here was not addressed, meaning the existing gymnasium and the like. So at the time that the redevelopment occurred, all the surface drainage, there s actually underground detention that happens here, all of that based on the stormwater path was determined to be to the west there. So in looking at the calculations and the further development, that plan will still be in effect, where we go through underground piping and other stormwater management items, be directing that water to that area. So we re not proposing to change the stormwater path or anything of that nature, but because this addition particularly was not planned for in the time of the original high school reconstruction, we are enlarging that basin as necessary. Mr. Van Heuvelen said so there are drainage pipes underneath the parking lot already, correct? Mr. Beron said yes. Mr. Hatfield asked are they drainage pipes or are there some actual bladders that hold it and detain it, or is it just piping it all the way out? Mr. Beron said both, it s a combination. Really, it s more just large tubes that are providing controlled outflow back to that area. And the same thing in that detention basin, if you were to go out there in a large rain, you might see that basin fill up the first couple of hours but, as the day goes on, that will empty out. Mr. Gass said I m just curious, as a tax payer, how is this funded, this addition? Mr. John Lees, Urbandale School District, Aurora Avenue, said this comes from bonding that we just did. We originally had it set up in one account, but that wasn t going to allow us to finish the fitness center until late 2020 s, possibly as early as So it was put on the bond issue that we would be constructing with some of those funds on this, so that s where it s coming from. It will be the first one done. Mr. Van Heuvelen said this will be strictly for students, it won t be open to the public at all? Mr. Lees said no, there are no plans for opening it to the public. Mr. Van Heuvelen said just for the high school. Mr. Lees said yes. Strength and conditioning is huge these days, it prevents injuries and makes better competitors.

4 Page 4 Mr. Gass moved, and it was seconded by Roethler, to approve the Urbandale High School Fitness Center Addition site plan, subject to Staff recommendations. On roll call; Ayes: Gass, Roethler, Van Heuvelen, Ralston-Hansen, Racki, Hatfield; Nays: none. Passes: none. Motion carried. The next item on the agenda was the Coyote Ridge of Urbandale, Plat 3 Final Plat (147 th Street and Waterford Road). Ms. Bales said this final plat is for property located ¼ mile west of 142nd Street along the north frontage of Waterford Road. The entire Coyote Ridge development is approximately 82 acres in size and is zoned P.U.D. The City Council approved the rezoning of the original acre parcel from A-1 to P.U.D. on February 3, An additional 5.5 acres, purchased from the property owner adjacent to the west, was incorporated into the overall Coyote Ridge development. The Coyote Ridge preliminary plat, with a total of 190 buildable lots, was approved by the City Council on May 26, The Coyote Ridge of Urbandale Plat 1 Final Plat, with 107 buildable lots, was approved by the City Council on October 13, 2015, and the Plat 2 Final Plat, with 36 buildable lots, was approved by the City Council on November 22, This 23-acre final plat contains the remaining 47 single-family residential lots, and four outlots, two of which total 3.51 acres and are part of the storm water detention system, and two of which are identified as parkland totaling 3.56 acres. All lots meet the minimum size requirement of 8,750 square feet, with the majority of lots over 10,000 square feet. The P.U.D. Master Plan requires a majority of the lots to be developed with a 75-foot minimum width, but allows 60-foot minimum width lots within close proximity to an existing easement for a major overhead high-voltage transmission line that bisects the parcel, parallel to and about 1,250 feet north of Waterford Road. The Parks and Recreation Commission approved the dedication of parkland at its meeting on April 15, 2015 for the overall Coyote Ridge Development. A portion of the parkland was dedicated in Plat 1. Waterford Road currently has two lanes of asphalt pavement along the southern frontage of the overall development. It is currently scheduled to be reconstructed with a four-lane cross-section plus turn lanes in The subject property is located in the Waukee School District, and drains primarily to the southwest, eventually into Walnut Creek. Property adjacent to the west and south is part of the same P.U.D., with homes currently under construction. Adjacent to the north is vacant agricultural land outside of the city limits. Adjacent to the east is the Waterford Pointe development zoned PUD and currently under construction. Property to the south, across Waterford Road, is zoned PUD and is currently vacant and used for agricultural purposes.

5 Page 5 Ms. Bales said Staff recommends approval of the final plat subject to requiring the developer to: 1. Submit an Attorney's Opinion and all other plat documents as found to be necessary for approval (including deeds for dedication of parkland); pay sanitary sewer fee of $28,336; provide surety for internal sidewalks in the amount of $14,796.09; pay street sign fee of $660; all inspection fees are to be paid before the final plat is recorded; provide certified as-built grading drawings verifying the as-built elevations of critical locations on the site, sanitary sewer manholes, and all storm water management facilities along with certification that the grading and storm water management facilities were constructed as designed. 2. Add addresses (to be provided by Community Development Dept.); verify depressed sidewalk locations in the first Note ; under Notes, the fourth and fifth bullet points may be deleted; revised eighth note to state All future driveways shall be located so as not to conflict with manhole and intake structures. (this is a change from previous comments.); add note regarding ownership of outlots; in Bulk Regulations, add 5 sideyard setback for 65 wide lots; label Outlots Y and Z as Parkland on plat; on Elevation Exhibit: verify MBE on Elevation Exhibit for Lot 8 (different from construction drawings) and label outlots. 3. Provide easement legal descriptions; provide book/page numbers for existing easements; provide signed off-site easements for grading at end of 147 th and 149 th Streets (if grading is even needed); verify whether the temporary construction easement is needed at the east end of Coyote Ridge; revise Outlots W and X with Surface Water Flowage Easements (SWFE); call out the width of the sanitary sewer easements on Lots 10, 11, 24, and 31; clarify the easements on the south side of Lot 31. Both the corner easement and the 25 easement along Stonecrop Drive call out storm sewer; call out proposed 20 sanitary sewer easement on Lot 40; along Stonecrop Drive, it appears that the callout for the Lot 24 sanitary sewer easement has been moved to Lot 25, and the callout for the sanitary sewer easement on Lots 25 to 30 is missing; revise easement between Lots 19 and 20 to also be for Surface Water Flowage; clarify 10 SWFE on Lots 32 to 34; The storm sewer easements on Lots 37 and 38 should also be SWFEs. Verify if a SWFE is needed on the storm sewer easement on the south side of Lot 9; revise off-site SWFE behind Lots 34 to 37 to also be for storm; as an overall comment, construction is on-going final easements cannot be verified until construction is complete. 4. Provide bond for extending paving, sanitary, and water to north plat boundary; provide a bond to ensure the detention area is cleaned out prior to it being turned over to the home owners association (bond should be at least $150 per 1000 cubic feet of detention storage).

6 Page 6 5. Provide an 11x17 Tile Map layout of found field tiles; provide addendum to existing Coyote Ridge of Urbandale Storm Water Facility Maintenance Agreement to increase the benefitted area to include this plat, and adjust the assessment division to include these lots. Verify if an amendment to the SWFMA is also needed for the 72 culvert. Ms. Emily Harding, Civil Design Advantage, was present to represent this final plat. Mr. Hatfield asked are you okay with all of the Staff recommendations as written? Ms. Harding said yes. Mr. Gass moved, and it was seconded by Ralston-Hansen, to approve the Coyote Ridge of Urbandale Plat 3 Final Plat, subject to Staff recommendations. On roll call; Ayes: Gass, Ralston-Hansen, Van Heuvelen, Roethler, Racki, Hatfield; Nays: none. Passes: none. Motion carried. Regarding Staff reports, Ms. Bales said we will have your meeting on December 10. You can see the pending list of items there at the bottom of the page. There are three public hearings on that evening s agenda. One of them is a little different, I m just going to highlight it really fast. There are some amendments to the Zoning Ordinance. The new FEMA maps are going to become effective February 1 of With that comes some changes that we need to make in the Zoning Ordinance, specifically the four or five sections that relate to our floodplain management districts. So this is to adopt the new Flood Insurance Rate Map Panel numbers. They ve also looked at our ordinance and said we re going to require you to add some of these definitions. And they ve also looked at our ordinance and said you may want to consider adding some of these. Then, I m not sure about the December 26 th meeting yet. We have one case on there, but we may see if it can be shifted if that s the only one we have. But I ll let you know more as time gets closer. Also in front of you this evening, I ed the 2019 calendar, but I printed one for those of you who want a piece of paper. If you don t want the piece of paper, you can leave it with me and I ll use it later. But that s your meeting schedule for the coming year. Mr. Hatfield asked what is Hickman Heights? Ms. Bales said Hickman Heights is the Mark Anderson building over here on 100 th Street. A couple of years ago you did an amendment to add a fitness center as an approved use. They ve now moved out and there s someone who wants to come in that isn t an allowed use, so they ve asked to amend the P.U.D. to accommodate that. Mr. Van Heuvelen said the Merle Hay Apartments, those are the ones by IHop? Ms. Bales said the Merle Hay Apartments are between IHop and Papa John s, in front of the former Younker s building, with frontage on Douglas Avenue.

7 Page 7 Ms. Ralston-Hansen said as you were talking about flooding, are there new developments on that property that we approved a month or so ago, between the Super Target and the housing development, the townhomes, just to the east of there? Ms. Bales said nothing in regard to the stormwater part of it. It s a site that s very much under construction and the Council approved that project, knowing that that site s contribution to the stormwater system was small and knowing that they still needed to come around and talk about stormwater detention in that area. But no meetings have been held on that yet. Ms. Ralston-Hansen said but it s still on the radar screen. Ms. Bales said yes. Mr. Hatfield said one more question regarding Merle Hay Apartments. There was a public meeting maybe a week ago, I thought, or is there one scheduled? Mr. Patrick Benoit (DUNA President) said there was a lunch and learn, several lunch and learns, about it. Ms. Bales said there was a meeting before the Council meeting, at 6 p.m. last Tuesday, or 2 weeks ago actually. Mr. Hatfield asked could you general say what the temperature was on that? Ms. Bales said no. Mr. Van Heuvelen asked you weren t there or you don t want to say? Ms. Bales said I was there but I don t know that there was a consensus offered. There were questions and a desire for more information Mr. Gass said did you say there s a street that they want to put through there, or an entrance to the apartments? Ms. Bales said no, they want to propose an apartment complex with access through the existing mall drive. So there by IHop would be their access, up and around. It wouldn t be an access point onto Douglas, but would have frontage onto Douglas. The meeting adjourned at 6:16 p.m.