1997-10-08 - CC Work Shop Packet - (Admin.)

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o ' IS Howard R. Green Gompar�y� CONSULTING ENGINEERS Formerly MSA COnsufMng Engmeer September 30, 1997 File: 260078m Mr. Mike Quigley Gor -Em Development, Inc_ 14732 Hanson Boulevard Coon Rapids, MN 55433 RE: CONSTRUCTION ISSUES — EAGLE PASS PROJECT, CEf.TERVJLLE Dear Mr. Quigley: This correspondence is to provide a summary of some construct =on issues on the Eagle Pass project that will need to be addressed in the near future. The issues include the pavement problems along Eagle Trail, grading issues along a drainage s ile at the northeast rcrner of the project, and a more recent development with tha drain tile system along Dupre Roac EAGLE TR-A,II Earlier this year, we met on site at the Eagle Pass project with you and your contractc: for the improvements, C.W. Houle, Inc. At that meeting, we discussed settlement or sub -base problems along Eagle Trail, where the pavement and curb and autter had developec several deflections. The problem developed during the 1296 -1991' winter. A follow -up letter dated May 5, 1997, was sent to those at the meeting. At that meeting, we discussed the need to repair these problem areas and to also monih)r these areas through the 1997 -1993 winter for additional defler„ ions. At a meeting with C.W Houle, Inc. last Friday, September 26 we discussed the need to make these repairs this fal so that we can monitor the situation over the coming winter season. The plant for repair includes paving a leveling course over the deflection areas, and either replacing the curb and gutter or jackin up the curb and gutter where deflections have occurred. This will be a satisfactory repa r in our option, however, should the deflections occur again over the winter season, more sirr,ife3nt repairs may be necessary, possibly including excavation of the sub -grade and reconstruction of the street. DRAINAGE SWALE GRADING At the east side of the project, a drainage swale is proposed on the grading plan to pro ride for an overflow route for stormwater from the pond at the southeast end of the site northward to Clearwater Creek. As of the date of this letter, the swale has been c instructed to direct runoff toward a low area along the back of lots 24 and 25. We recommend the Swale be constructed to drain stormwater to Clearwater Creek, according to the final grading p'an. This work should be completed this fall 1326 Enerav Park Drive • St. Pail mN grim F +aa1 +. -ooa •,•. a +vc•+ ,_.._ OT%b0'd 9G :TT -GET- 20-17n