02-22-1988 - Agenda Packet City Council - regular meeting

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i a E1 DISCUSSION The sanitary sever system in the Stubbs Bay area has been separated into Part I, Stubbs Bay Northwest, and Part II, Stubbs Bay northeast. The Stubbs Bay Northwest area would be ser-md by construction of a lift station on West aka Street and a force min to TonLwa Road and the existing system. The lateral line would be extended north along West Lake Street to Bayside Road and then east approximately 1,3DO feet to serve adjacent property. There are 25 homes in the Stubbs Bay Northwest area which would be served by the im- prove,- at. The Stubbs Bay Northeast area would be served by construction of a lift station near the intersection of Bayside Road and Tonka Avenue. The force �,in would -- constructed from the lift station to the easterly manhole in Part T. The report provides for an alternate alignment for the force main which would follow the Luce Line Trail. There are 38 homes in the Stubbs Bay Northeast Area which would be served by the improvement. The project will generally be constructed within the right-of-way of existing streets, but the alignment selected will require some permanent ease- ments and a number of temporary easements to allow construction. Permits from Hennepin County, the DNB and MWCC will be required. The streets disturbed during construction will be replaced with 8 inches of Class 5, 100 percent crushed end 3 inches of 2341 bituminous surfacing. The boulevards and easements will be sodded and the area disturbed along the railroad and county right-of-way will be seeded. The removal of several trees along the right-of-way and an required easements will be necessary to fecili- tate construction of the sever line. 0-8620b - 4 - COST ESTIMAIL:q Cost estirates have been prepared for the extension of sanitary sever to the Stubbs Bay area. The summary of project costa are provided in this see- tion with detailed cost estimates for the work described presented in the appendices at the back of this report. The estimates for the work are Lased on anticipate ..ait prices for the 1784 construction season. The cost estimates presented below include a five percent allowance for contingencies and a 25 percent allowance for project design administration, bonding capitalized interest and legal costs. Part I - Stubbs Bay Northwest i Q ° S 84-3 Sanitary Sever Extension $211,890 _,q�?5`/ 84-4 Street and Blvd. Restoration 131,100 �-3 i ba O Total Project Cost - Part I $342, 990 -- 711 q 1` / Part II - Stubbs Bay Northeast 84-5 Sanitary Sewer Extensf 4248,500 84-6 Street and Blvd. Restoration 230,600 2 Total Project Cost - Part 11 $479,100 E08,790 Alternate I Force Maln Relocation DEDCCT $34,8CO EM+E Each project will require a lift station to hump the sewage into the existing Orono sewer system. The estimated annual operation and maintenance cost for the lift station in Part I is $4.550 and the lift station in Part II is $4,450. - 5 - 0-8620b