208 



NAUTICAL CHART MANUAL 



Pago 



New print 6 



New print date (see New Print) 6 



No bottom found (Q-2) (see No-Bottom 



Soundings) 55 



North American Datum of 1927 8, 9 



Notations on Drawings 16 



Notes (Figs. 2, 8 to 14) : 



Bridge clearance 33 



Correction note and date 7 



Descriptive report 36 



Junction (Fig. 20) 21 



Magnetic disturbance (Fig. 13) 10, 11 



Plane coordinate grid (Fig. 10) 11 



Project depth, Intracoastal Waterway 



(Fig. 13) 18 



Rocks, dangerous offshore 67-69 



Rules of the Road (Fig. 1) 23 



Tide 52 



Notice to Mariners (see Aid Proof, New 



Edition) 3,6, 18 



Anchorage areas 20 



Conflicts, surveys vs. charts 13 



Controlling depths, Intracoastal Water- 

 way 18 



Correction note and date 7 



Critical information reported to 18 



Important landmarks 24 



Tabulated values, depths 62-64 



Wreck information 70, 71 



Numbers : 



Coast Guard (J-3, Ja) 29 



Highways (H-1) 48 



Numerals, projection (Figs. 4-6) 12 



Nun buoy (L-6) 195 



o 



Obelisk, not to be used 25 



Object names, type (Fig. 20, 21) 151, 152 



Observation spot (D-4) 176 



Observation tower (See Lookout Tower) (J-4) _ 26 



Observatory (J-21) 180 



Obstruction buoys (L-20a) (Chart No. 1 — 



Lighted and unlighted buoyage) 194, 195 



Obstructions (0-27) 65-73 



Wire-drag clearance depth over (0-6a; 



Q-9, 9a) (see Wire-Drag Surveys) 51 



Occulting lights (Fig. 35) (K-22) 166 



Offshore rocks 67, 69 



Oil pipelines (see Cable or Pipelines) 21, 62 



Oil tank (1-46) 27 



Oil well obstructions 66 



Okeechobee Waterway, note (Fig. 9) 140 



Old Hawaiian Datum (see Geographic Datums). 9 



Page 



Omissions: 



Bluetints within channels (Q-5, 6; R) 62 



"Bn" on Intracoastal Waterway charts... 82 



Congested depth curves 60, 61 



Congested light characteristics 79 



Curves around depressions 61 



Details on small-scale charts 17, 41 



Magenta disc omitted on landmark with 



light (see Private Aids) 85 



Private roads 48 



Order of corrections 16 



Ordering type 108, 109 



Organization of the Coast and Geodetic 



Survey 1 



Original sources 14 



Overfalls, Tide rips (0-18) 185 



Overhead cable clearances 35, 36 



Notes 35, 36 



Overhead power cable (Figs. 1, 19) (H-4) 35, 36 



Overlapping charts 17 



Overlays, cellulose acetate (see Verification) 19 



Overprint, green (see Wire Drag Surveys) 51 



Oyster, bottoms (S-24) 74 



Oyster reef | 65 



P 



Panels of chart, same scale 32 



Pantograph, formula 13 



Paper, work size, normal and extreme (Fig. 36). 167 



Parallels of Latitude 98 



Patent slip (Marine railway) (G-39) 177 



Peak (D-Da to Dd) : 



Accentuated by contours (D-Da) 176 



Accentuated by hachures (D-Db) 176 



Summit of height (D-3) 176 



Undetermined elevation (D-Dc) 176 



Used as a landmark (D-De) 176 



Periods (cycles) of lights on buoys 81 



Periods, omission of in abbreviations 107 



Photoprints (see Matte Prints) 3 



Photogrammetry 16, 19, 24 



Photographs, aerial 19 



Piers (G-9) 47,55 



Piles (H-9) 47 



Pilot rules (see Rules of the Road) 23 



Pilot station (J-8) 180 



Pipeline area (Figs. 1, 13)(P-7 to 8a) 21,62 



Note (Fig. 13) 144 



Pipes (see Piles, etc.) 47 



Placement of names 106 



