HomeMy WebLinkAbout2019-03-19 Legacy 2nd-Engineering Final Plat Review PAGE 1 of 2
MEMORANDUM
Date: March 19, 2019
To: Ken Roberts, Planning Director Re: Legacy at Northstar 2nd Addition – Final Plat
Cc: Chad Isakson, P.E., Assistant City Engineer Engineering Review Comments
From: Jack Griffin, P.E., City Engineer
An engineering review has been completed for the Legacy at Northstar 2nd Addition. Final Plat/Final Construction
Plans were received on February 26, 2018. The submittal consisted of the following documentation:
Legacy at Northstar 2nd Addition Final Plat, Sheets 1‐3, received February 26, 2019.
Legacy at Northstar 2nd Addition Construction Plans, Sheets 1‐31, dated February 20, 2019.
Legacy at Northstar 2nd Addition Specifications dated November 6, 2018.
Legacy at Northstar Tree Survey, Sheets TS1‐TS2, dated July 18, 2018.
Legacy at Northstar Preliminary Landscape Plan, Sheets LP1‐LP7, dated June 26, 2018.
STATUS/FINDINGS: Engineering review comments have been provided in two separate memos; one for Final Plat
approval, and one to assist with the completion of the final Construction Plans. Please see the following review
comments relating to the Final Plat application.
FINAL PLAT/PLANS: LEGACY AT NORTHSTAR 2ND ADDITION
The Final Construction Plans must be revised so that Outlots and ownership are consistent throughout the
Final Plat and Final Construction Plans.
Outlot A is identified to be dedicated to the City as required by the preliminary plat. The Outlot includes
both storm water pond #2 and storm water pond #3, including the 100‐year HWL and maintenance access
roads. The reference to the drainage and utility easement over all of Outlot A should be removed.
The construction plans must be revised to identify Outlot B as HOA owned with a drainage and utility
easement over all of Outlot B to be consistent with the preliminary plat. Update the Outlot ownership
table accordingly.
Outlot C is identified to be dedicated to the City as required by the preliminary plat. The Outlot includes
storm water pond #6 including the 100‐year HWL and maintenance access road. The reference to the
drainage and utility easement over all of Outlot C should be removed.
The construction plans must be revised to show Outlot D as part of the Legacy at North Star 2nd Addition.
The construction plans must be revised to show Outlot F as part of the Legacy at North Star 2nd Addition.
Outlot F must be shown in the Outlot Ownership table as HOA owned with drainage and utility easement
over all of Outlot F.
Final Plat approval must be contingent upon City approval for the proposed changes to Outlot F from the
approved preliminary plat. Outlot F has been reduced in width. Additional plan review is needed to
determine if this change is acceptable.
Remove sheet 2 from the construction plans to avoid conflicts, or correct plan sheet to be consistent with
1st and 2nd Addition Plats.
FOCUS ENGINEERING, inc.
Cara Geheren, P.E. 651.300.4261
Jack Griffin, P.E. 651.300.4264
Ryan Stempski, P.E. 651.300.4267
Chad Isakson, P.E. 651.300.4283
PAGE 2 of 2
Drainage and utility easements have been provided on the Final Plat over all of Outlots B, D, E, and F. These
easements are consistent with the preliminary plat.
All easements as requested by the City Engineer and Public Works department shall be documented on the
Final Plat prior to the release of the Final Plat for recording.
No trunk watermain or trunk sanitary sewer oversizing is anticipated for this development. All watermains
should be 8‐inch diameter pipe.
Final Construction Plans and Specifications must be prepared in accordance with the City Engineering
Design Standards Manual dated February 2019, using City details, plan notes and specifications and
meeting City Engineering Design Guidelines.
Final Construction Plans and Specifications must be revised in accordance with the Construction Plan
engineering review memorandum dated March 19, 2019.
The Final Plat shall not be recorded until final construction plan approval is granted.
No construction for Legacy at Northstar 2nd Addition may begin until the applicant has received City
Engineer approval for the Final Construction Plans; the applicant has obtained and submitted to the City all
applicable permits, easements and permissions needed for the project; and a preconstruction meeting has
been held by the City’s engineering department.