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Cinnaminson Township
City Zoning Code

§ 525-91

Design guidelines for marinas in MC District.

[Added 12-12-1990 by Ord. No. 1990-29]
All applications for marinas shall present marina operating plans in accordance with the following:
A. 
Siting.
(1) 
The site should require minimal dredging, both initial and maintenance.
(2) 
The site should have a total flushing time of less than four days. Two or less is preferred. Sites located in dead-end finger channels shall be carefully scrutinized to ensure acceptable flushing rates.
(3) 
The site should be located with safe, convenient access to cruising waters. Winding channels, hazardous routes and long traveled distances to water-use areas are discouraged.
(4) 
The site must have adequate land access for autos, trucks, trailers and fire-fighting equipment.
(5) 
The site must have access to centralized water and sewer conveyancing facilities.
(6) 
The boundaries of the site should be at least 1,000 feet from shellfish harvesting areas (until further modified by the Department of Environmental Protection's Marina Impact Study).
(7) 
Wet-slip marinas shall not be constructed nor expanded in Category One waters.
B. 
Design.
(1) 
The following guidelines should be followed to promote water quality in the marina basin:
(a) 
Basin depths must never exceed the depths of access channels nor the open water to which the basin connects.
(b) 
Deep-draft slips shall be constructed in naturally deep portions of the site in order to minimize the need for dredging.
(c) 
Floating water breakers are preferred in low-energy areas (where wave lengths are less than twice the width of the breakwater).
(d) 
Sharp angles are to be avoided; corners should be gently rounded, never square.
(e) 
Basin depths should uniformly deepen toward the exit and waterway outside the basin.
(f) 
Entrance channels should not be located on corners.
(g) 
Where possible, entrance channels should be oriented in the direction of the prevailing winds to promote wind-driven circulation.
(h) 
Enclosed basins should include openings at opposite ends to promote circulation.
(i) 
Slips should be oriented parallel to currents, never broadside; this promotes circulation and reduces the load on the pier structure.
(j) 
Fuel pumps shall include back pressure cutoff valves. Main cutoff valves shall be available both at the dock and in the upland area of the marina.
(2) 
Sloping riprap bulkheads are preferred over solid vertical structures as they better dissipate wave energy and provide a more diverse habitat for marine organisms.
(3) 
To avoid standing waves, bulkheads shall never be parallel to one another.
(4) 
To minimize the impact on the photic zone, dock and pier widths should be minimized. In addition, the structures should stand as high above mean high water as possible and should be oriented north-south to the maximum extent practicable.
(5) 
Slip parking should be located as close as reasonably possible to marina areas.
(6) 
For safety reasons, the usable width of the entrance channel should be at least four times the beam of the widest expected vessel, or a minimum of 19 meters.
(7) 
The marina shall provide, as a minimum, one pumpout station (fixed or portable) for every 20 slips. Marinas which allow occupation of berthed vessels for a period of 72 hours or more shall provide slip-side pumpout facilities. Pumpout facilities shall be designed with holding tanks in order to prevent inputs into both septic and sanitary waste systems. (MSD disinfectants disrupt the functioning of these systems.)
(8) 
The marina shall provide abundant trash receptacles along with adequate fish cleaning areas, including separate and well-marked dispensers for organic refuse.
(9) 
Ample parking facilities shall be provided, with a minimum of 0.6 space per slip. The number will range from 0.6 to 2.5 spaces per slip, depending on the nature of the marina.
(10) 
The design should include an aesthetically pleasing landscape plan.
(11) 
Maintenance areas shall be screened by proper landscaping and shall include techniques which will prevent materials from reaching the water body.
(12) 
The fueling facility shall be designed to accommodate four of the largest expected vessels.
(13) 
For safety purposes, the turning basin should be at least 2.25 times the length of the longest expected vessel.
(14) 
Rest rooms.
(a) 
Marinas shall provide rest rooms according to the following schedule:
[1] 
Small marina, up to 40 boats.
[a] 
Men: one toilet stall, one urinal and one washbasin.
[b] 
Women: two toilet stalls and one washbasin.
[2] 
Medium marina, 40 to 80 boats.
[a] 
Men: two urinals, one toilet stall, two shower stalls and two washbasins.
[b] 
Women: three toilet stalls, two washbasins and two shower stalls.
[3] 
Large marina, over 80 boats. Add one urinal per 30 boats (men), one toilet stall per 60 boats (men), one toilet stall per 30 boats (women), one washbasin per 60 boats and one shower stall per 60 boats.
(b) 
Rest rooms shall provide both hot and cold water and shall be maintained in a sanitary, warm, dry, brightly lit and well-ventilated condition.
(15) 
For safety, comfort and to avoid interference with commercial boating activities, marinas shall be designed such that wave heights do not exceed two to four feet in the entrance channel and one to 1.5 feet in the berthing area. Such a design will assume four-foot external wave conditions.
(16) 
The marina shall develop and implement a recycling plan for solid waste. This shall include separate receptacles for aluminum; brown, green and clear glass; newspaper and plastic.
C. 
Construction.
(1) 
Only high grade, slow-leaching wood preservatives shall be used on piling and other dock/pier woods.
(2) 
Dredging shall be scheduled around critical life stages of marina organisms.
(3) 
Dredging shall take place during cooler months when the dissolved oxygen levels are naturally high.
(4) 
Erosion and sediment controls shall be in place prior to construction.
(5) 
Where appropriate (currents under 1.5 knots), sediment curtains shall be used during dredging.
(6) 
Clean dredge spoil with adequate grain size shall be used for beach nourishment.
(7) 
Pumpout facilities shall be designed to store the effluent until a certified hauler can remove it; disposal antiseptic systems or municipal sanitary sewer lines can disrupt the water purification process due to the disinfectants used in conjunction with MSDs.
(8) 
Applicants shall submit a dredge spoil plan identifying plans for dredge disposal.
D. 
Operation.
(1) 
The marina shall have available adequate floating containment booms and sorbent materials in the event of hydrocarbon spills. Employees shall be trained in the deployment and proper usage of such equipment.
(2) 
Operators shall take immediate action in the event of a spill, including boom deployment and spreading sorbent materials.
(3) 
The dumping of porta-potties, pumpout effluents or holding tanks into septic systems is prohibited.
(4) 
Waste receptacles shall be emptied daily.
(5) 
Boat maintenance shall be undertaken as far from the water as practical.
(6) 
"No Discharge" signs shall be posted throughout the marina basin.