reported that about 75 percent of the low -level lights were broken off or stolen during the 

 &st year. The manager felt that these lights failed to illuminate the area sufficiently for the 

 necessary security at night. Most managers and many boaters still prefer the medium -height 

 standards. 



An intercommunication system is desirable at any harbor berthing more than a few 

 dozen boats. Some marinas merely provide pay telephone stations at convenient intervals; 

 others have phone jacks for every berth. Some have only a public address system for paging; 

 others combine this system with a telephone at the shore end of each main walk. The 

 system selected should best meet the anticipated requirements of the slip renters. A 

 two-way pubUc address system costs little more than a one-way system and will be far more 

 useful in a small -craft harbor. If there is a question as to the need for individual service, 

 telephone company recommendations should be obtained, especially regarding requirements 

 for conduits installed initially in anticipation of future telephone service. One of the best 

 communications systems that meets the requirements of most medium size marinas is a 

 paging system, with speakers located within easy hearing distance of every slip and support 

 facUity, and a central telephone switchboard in the administration office. The harbor 

 manager routes each incoming call to the phone extension nearest the party called and 

 notifies that party by paging. Conversely, he handles all outgoing calls as instructed and 

 charges a predetermined per-caU fee for this service. 



Conduits and waterlines should be extended out on each main walk in an easily 

 accessible utility duct or a hanger system with supports at 8-foot intervals. A few berthing 

 systems provide built-in utility ducts with easily removable covers just under the main walk 

 decks (Fig. 109). However, this location tends to disrupt the structural integrity of a system. 

 Most systems employ an alternative utiUty Une location on the outside of the stringers, 

 below deck level (Fig. 110) and, although not as convenient as a special utility duct, this is 

 probably the best hidden site for the Unes. The primary objective is to locate the lines for 

 easy repair work. In some marinas the desire for convenience outweighs the desire for neat 

 appearance, and conduits and waterlines are placed directly on the decks (Fig. 111). 

 Duplicate lines on the sides of the main walk sometimes serve each row of slips separately. 

 The common practice is to extend the waterline on one side and the electrical conduits on 

 the other side, with underdock cross runs to serve outlets on opposite-side sUps. Chaney 

 (1961) should be consulted for a detailed treatment of water supply and electrical 

 installations. 



Sanitary sewer lines have been provided on some fixed-pier structures in marinas, usually 

 where they serve restaurants, fish cleaning stations, or clubhouses built over the water. 

 There has been little requirement for direct-connection sanitary systems to serve boats 

 berthed in marinas. With the trend toward houseboats and Uve-aboard-berthed-craft 

 practices, consideration is now being given to the use of shore-connected water supply and 

 automatic pumpout facilities in many of the berthed craft. Craft with pumpout facilities 

 may soon be in service, and the future need for installation of direct-connection sewerlines 



168 



