Agenda - Planning Commission - 09/05/1995

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Page Five THE ZONING REPORT ration, which expectation would not overload lake use on peak busy days (usually July 4th is the highest peak day, especially over a three-day weekend, but also Memorial Day and Labor Day weekends). Keyhole development would be limited to the s~me number of piers per unit segment of shoreline (such as one pier per lot or per 100-200 lineal ft of shoreline whichever is less). Keyhole piers would be limited in width and length to that allowed for all other piers on the lake by right, limiting practical use of a small pier serving an entire multi-family project with access to it. Other types of fixed limits are imposed on the size or type of boats or the horse~wer of motors on boats, or by prohibition of motors on any boat on the lake. Some~lakes are zoned for various activities, with certain areas of the lake zoned for p~)wer boats, for towboats for water skiing and parasailing, with powered boats prohil~.ited in shallows and still waters except those using only trolling motors. (ii). ~, determining the boating capacity of each lake. A formula determines the capa~.tty of lake use by powered boats on peak user days, generally similar in analy- sis method for determining the practical capacity of arterial streets by vehicles. The capacity of the lake to sustain boating without significant ecological damage is determined by qualified experts. This capacity is determined by deleting shallow areas~less than 5 ft deep, any portion within 100 ft of the shoreline, and restricted areas due to special habitats or within unsafe distance of spillways and water in- takes~ The remaining lake area is multiplied by a factor of 5 to 10 that accounts for (s~y) 10-20% of all boats that can use the lake'being used during peak periods, to derive a gross number of boats that would be available for use, whether wet or dry s~ored. The gross number of boats is then assigned to all land uses with front- age on the lake to derive the number of boats per unit of frontage or lake lot. First uses t~) be assigned boats are existing and undeveloped platted single-family lots and vacant undeveloped areas zoned or shown on the comprehensive land use plan for single, family use, usually at one boat per lot or per 200 ft of frontage whichever is less. Then 'all remaining available gross boat capacity can be assigned to all other multi-access (keyhole/funnel) lake frontage. A conditional use permit would be re- quired for all multi-access users to assure that keyhole users conform to the boat capacity terms of the permit. Condominium and fee-simple subdivisions would re- quire covenants to individual units regulating boat use as part of the subdivision plattirig procedure, to be enforced by the condo association or home owners associa- tion, or failing that intervention, by the public attorney. These covenants and con- dition~ for lake access are recorded with each unit and lot deed and with the plat. (iii). A~lditional regulations for community piers. Piers providing multiple-boat dock- ing by' marinas, yacht clubs, resorts and public access piers and moorages with many boat tie-ups often are required to provide them in a ratio to the number of poten- tial oOcupants and land users, perhaps in a table of these ratios, the ratio of slips to uni~.sjdeclining with a larger number Of units in the project. For example, a sin- gle-family subdivision or multi-family condominium or hotel may be required to pro- vide ohe slip for each of' the first 15-30 units, 0.8 slips for the next 30-50 living units~ ~).6 slips for the next 50-100 units, and (say) 0.4 slips for all additional units. Off-street parking is required at the pier in a ratio of one parking space per two to five wet-boat slips. The facility must also meet other marine site requirements~ per- haps a~ a ratio of the number of boat slips and moorages to the number of required sanitary facilities, pump outs, solid waste disposal, Coast Guard approved personal flotation devices, boarding ladders on piers, and such. August 4, 1995 Issue