CCP 09-27-1993 - Laserfiche WebLink

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I I. I INTRODUCTION This feasibility study is a revision of the feasibility study prepared in September, 1991 which I investigated the drainage concerns in the rear lot of 1553 Arden Place. The revised feasibility study was authorized by the Arden Hills City Council at their August 30, 1993 City Council I meeting. The drainage area consists of approximately two acres of single family residential lots, within an area zoned R-l, single-family residential. The location of the area under analysis and the existing storm sewer within that area are presented in Exhibit One. I SCOPE I The purpose of this report is to analyze the feasibility of constructing storm sewer facilities to improve drainage from the area north of Arden Place. This feasibility report will present the I existing conditions, proposed improvements and estimated construction and overhead costs, including engineering, field staking and inspection, City administration and fiscal costs. Possible financing methods will also be discussed using the City's Assessment Manual as a guide. I EXISTING STORM SEWER . As presented in Exhibit One, a storm sewer is currently in place to drain approximately 2.0 acres of residential property, mostly consisting of backyards. Topography maps from 1974 I indicate an area (at an approximate elevation of 900 feet) exists which serves as a ponding area for storm water runoff. The existing storm sewer consists of a small catch basin that drains into a four-inch diameter pipe that flows along the east lot line of 1553 Arden Place. This four-inch I pipe connects to a six-inch pipe, which directs the storm drainage towards the south beneath Arden Place and discharges approximately 60 feet from the narrow canal serving Lake Johanna. I The entire length of storm sewer pipe is approximately 320 linear feet. No as-built records have been located; however, it is believed that the storm sewer was installed by City personnel in the mid 1960's. While the existing sewer is not totally blocked, very limited flow has been I observed at the outlet of this line. I W.F. Bauer Construction Company, Inc., built the home at 1553 Arden Place in 1989 and concerns were raised by City staff and adjacent property owners regarding the site grading and drainage and their impact upon nearby properties. Correspondence has been sent to W.F. Bauer I Construction as recently as June of 1991 regarding the adverse impact this grading and drainage has had on nearby homes since the home at 1553 Arden Place was built, specifically those at 3487 Ridgewood Road and 3505 Ridgewood Road. I {' 2 I