and inboard-outboard cruisers that are easily transported by trailer. Recognizing this local 

 trend toward use of small craft, designers of the Still Waters Marina specifically designed the 

 installation to accommodate them. 



One of the marina 's main features is a dry -storage facihty. The operation is housed in a 

 steel warehouse-type building, which is sheathed and roofed with corrugated sheet metal 

 and has a concrete floor. One hundred boats up to 20 feet long can be dry -stored in the 

 multilevel, well padded racks of this building (Fig. 173). A boat that is to be launched is 

 lifted from the rack with a forklift truck, transported to the lake on the two 12-foot padded 

 forks, and lowered into the water. The 12,000-pound-capacity lift has the capability of 

 hyperextending its forks down over a specially designed bulkhead. Retrieval is accompUshed 

 by reversing the cycle. With this operation, the boats are kept clean and safe inside the 

 dry -storage building until launching is requested. The dry berth rental rate is $1.10 per foot 

 length of boat per month, and includes launching and retrieval as often as once a day if 

 desired. 



Although the dry-storage facility is limited to boats of 20 feet or less, the msirina has wet 

 berths available for craft up to 50 feet long. The seasonal water level fluctuation of Lake 

 Martin averages 12 feet, a factor that dictated the choice of a floating rather than a fixed 

 berthing system. A standard floating-dock system is used, but the means of anchoring the 

 floating piers and the 26- by 26-foot floating fuel island is rather unusual. A number of 

 vertical pipe sleeves were first bolted to the outboard edges of the dock structures and then 

 long lengths of 4-inch-diameter pipe were dropped through the sleeves to act as guide piles. 

 Because the marina is favorably sited, experiences little current, and is exposed to minimal 

 wind forces and wave action, the lateral loading on the docks is small. Apparentiy the pipes 

 penetrated the bottom silt to a depth that is adequate to develop the necessary passive soil 

 resistance to prevent lateral displacement of the docks. In any event, the management 

 reports that the system has worked well. 



Covered dry -storage racks used in conjunction with an operational launching enterprise is 

 not new or unusual, but may be a viable alternative to wet storage for smaller craft where 

 berthing space is limited and demand is great enough. Because of the relatively high cost of 

 the launching facilities and operating personnel required, this system can only be successful 

 at installations serving more than 100 boats. An efficient operational system that does not 

 keep a cUent waiting long for his boat to be launched is also required. Unsatisfactory 

 experiences with such operations have had a deterrent effect on the dry -storage market in 

 many areas in the past, but with improved equipment, new handling systems, and a 

 dwindling inventory of good undeveloped wet berthing space, dry storage should expand 

 significantly in the future. Still Waters Marina is a good example of a successful combination 

 of both types of small-craft berthings. 



(6) Wahweap and Rainbow Bridge Marinas. Lake Powell, on the Arizona-Utah 

 boundary, was formed on 21 January 1963, when the control gates of the newly completed 



284 



