01/13/2021 P&Z Packet - Laserfiche WebLink

Home Search

Ms. Katie Larsen 01/07/2020 Page 4 Watermark 4th Addition Engineering Review Comments: 1. Applicant to submit bridge design and supporting documentation. 2. Revise median at Watermark Way and 20th Avenue (CSAH 54) to incorporate both right and left turn lanes. 3. Add a center left turn lane on 20th Avenue (CSAH 54) that can accommodate future development to the west. 4. Make sure pavement section for 20th Avenue (CSAH 54) matches the existing through lane section. 5. Add crosswalk markings to the crossing at Watermark Way and 20th Avenue (CSAH 54). 6. Update the stop sign on Watermark Way at 20th Avenue (CSAH 54) to be a 36”x36” stop sign and update sign B (on turn lane plans) to be a “RIGHT LANE MUST TURN RIGHT” R3-7R sign. 7. Anoka County to review turn lane layout on 20th Avenue (CSAH 54) prior to final plat approval. 8. The turn lane cross sections show the ditch and floodplain being filled. The applicant shall review and adjust. The cross sections should be shown approximately 20 feet beyond the right of way to show trail drainage. 9. Roundabout Comments i. Should provide the following checks: 1. Fast Path 2. Truck Turning 3. Sight Distance (this will help determine location of plantings (any areas within a sight distance triangle shall be limited to under 2’ in height) ii. Sheet 23: Instead of S524, the curb used should be the R424. iii. Sheet 23: Staff recommends tipping the gutter of the R424 and B612 in and placing catch basins in those locations. This prevents melting and refreezing in the spring. Many agencies do not tip the B612 in, but most tip the R424 in. iv. Sheet 23: The truck apron detail, the dowel bars can be eliminated and the joint type can be C3P-U. Eliminate the interior tie bar, applicant can keep the exterior tie bar, but it won’t actually be an L1TH, as it will just be a butt joint as they are poured separately. v. Sheet 23: The roundabout typical section should show to the center of the central island. This should be graded with ~1:6 to the center. vi. Sheet 23: Grade on truck apron should be 1% vii. Sheet 15: Pedestrian Ramps should be detailed somewhere showing the ramps, landing, etc. Just referencing the details does not tell enough information needed to choose the appropriate type of ramp to use. viii. Sheet 19: The 4” dotted stripe at the edge of the roundabout should be an 8” dotted (3’ stripe, 3’ gap) • Wetlands and Mitigation Plan Wetlands and mitigation plan reviewed during the Preliminary Plat. • Landscaping