Agenda - Council - 09/23/2003 - Laserfiche WebLink

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o In review of the 78-inch storm sewer crossing under the railroad tracks on Sheet 44, the spacing between the railroad tracks and the top of the pipe will not meet the railroads' minimum requirement of 5 ½ feet of cover from the base of rail. Also, the profile of the pipe on Sheet 99 does not match the proposed inverts and the grades shown on the Grading Plan. In review of the phasing plans, the portion of Civic Center Drive lying east of Rhinestone Street should be constructed by the developer. GRADING PLAN COMMENTS General 1. Need legend or key for existing and proposed lines and symbols used on Grading Plan. Cannot differentiate proposed contour lines from proposed building lines and edge of pavement.lines- all lines are' solid and same width. For parking lots and driveways, does asphalt abut turf *no curb and gutter) or is concrete curb and gutter used along driveways and parking lots. If so, grading plans do not reflect use of concrete curb and gutter except along streets. ' Along street, extra large notes indicate HI PTS (PI of crest vertical curve) and LO PTS (PI Of sag vertical curves) with stationing and elevations of those PI's. But streets do not show that stationing. Also reduce size of those notes and separate from other notes, contour elevations, etc. Show all proposed storm3nlet structures along streets and in ponding areas. In many of the proposed residential areas, it is not clear how access would-be provided to the individual units from the parking lot. And in many cases, the drainage is directed into the garages. Adjacent to many of the proposed buildings, a contour located in the parking lot, driveway, or turf area is often at the same elevation as the proposed building floor elevation; thereby, creating fiat areas with no apparent drainage. 8. Many contour lines are shov4~ inside the building footprint perimeter. Along east and west Ramsey Parkway, the cross-slope of the pavement (towards the median) is often in conflict with the super elevation needed to provide traffic safety on horizontal curves. This could be a serious safety and liability issue which can be remedied with a few feet of additional piping to relocate the storm sewer inlets along the outside, rather than the median, curb. G:\Mm~icipal\Aramsey\95 l\ra951 REVIEW.doc Page 2 .Hakanson Anderson Assoc., Inc.