Section l8 

 KEY WEST, FLORIDA — U. S. KA.VAL SUBMAEIRE BASE 



AI8.OI Location of the Test Stations and Test Boards 



Two test boards of the panel type were installed June J , IS^k, 

 at what was formerly the U. S. Naval Operating Base, hut is now the 

 U. S. Naval Suhmarine Base, at Key West, Florida. One hoard, designated 

 as USNK-l, was placed on the inhoard side of Pier "B" at the Naval Base; 

 the other, designated aa ■USIIK-2, was placed on the outhoard end of the 

 Section Base. 



It was 1115)08811316 to place either test "board near untreated 

 piling, so they vere placed at what were considered to he the most 

 suitable positions. In the case of hoard USHK-1, the position selected 

 along the inhoard side of Pier B, Just off the edge of the pier, -was 

 6 ft from, the nearest reinforced concrete pile. Board 'USNK-2 was 

 placed immediately to the right of the center of the outhoard (vest) 

 end of the Section Base. This position is 5 ft from some treated wood 

 fender piling. 



On November 20, 19^5, a new series of panels was installed on 

 both test boards, and the period of submergence was reduced from 

 8 to U months because of the destructiveness of marine borers at 

 this locality. The operation of these test boards is being continued. 

 The results have been summarized to the end of 19^7. 



AI8.02 Hydrographic Data 



1. Test Board No. 1 (USNK-l ) . The depth of water where this 

 test board was installed was 12 ft; the tidal range (general average) was 

 1.80 ft; the current was approximately O.8O knot.^ Jhe surface temperature 

 of the water at the time of Installation was 86° F. The salinity was 

 determined aa chloride (mi3J.igrams per liter), 20,900; as sodium 

 chloride, 5i)-,500. In regard to pollution, it was stated that there 



is a i»-in. sanitary sewer line discharging overboard 50 ft from the 

 test board. Five toilets, used by approxMately kO people daily, were 

 reported to be on this sewer line. 



2. Teat Board No. 2 (USBK-2 ). The depth of water where this 

 teat boai^d was installed was 20 ft, but the bottom breaks off quite 

 shai'ply to a depth of 27 ft, approximately I5 ft off the end of the wall. 

 The tidal range (general average), was given as I.80 ft, and the 

 cuiTent was approximately 1.20 knots. The sm'face temperature of thd 

 watei- at the time of installation was 86° F. The salinity was determined 



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