Positions quoted in this Preliminary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC. Some or all of the information contained in this Notice to Mariners may have been included on the ENCs affected. 2339(P)/24 CHINA —  South Coast — Fairways. Depths. Bridge. Vertical clearance. Source: Chinese Chart 15731 1. Fairway limits in Longteng Hangdao (Inner Section) and Nansandao Xihangdao have changed as follows: 21° 04' .91N. , 110° 30' .19E. 21° 04' .83N. , 110° 31' .98E. 21° 04' .00N. , 110° 34' .07E. 21° 03' .61N. , 110° 35' .34E. 2. Fairway limits in Nansandao Xihangdao and Shitoujiao Hangdao have changed as follows: 21° 05' .65N. , 110° 26' .84E. 21° 05' .10N. , 110° 27' .52E. 21° 04' .84N. , 110° 28' .30E. 21° 04' .86N. , 110° 29' .17E. 3. Numerous depths less than charted exist within Zhanjiang Gang. The most significant are as follows: Depth Position 7·1m 21° 03' .70N. , 110° 34' .77E. 7·6m 21° 03' .83N. , 110° 34' .29E. 7·8m 21° 03' .19N. , 110° 36' .14E. 12m 21° 04' .14N. , 110° 29' .13E. 15·5m 21° 05' .44N. , 110° 31' .45E. 12m 21° 04' .55N. , 110° 30' .35E. 18·5m 21° 04' .43N. , 110° 29' .57E. 11·6m 21° 04' .03N. , 110° 29' .36E. 4·4m 21° 03' .81N. , 110° 27' .07E. 4·4m 21° 15' .16N. , 110° 25' .22E. 12·8m 21° 06' .11N. , 110° 26' .64E. 4. Numerous depths deeper than charted exist within the fairways of Zhanjiang Gang. 5. The bridge under construction, in the vicinity of position 21° 19' .48N. , 110° 25' .04E. , is now complete and has a vertical clearance of 40m. 6. Mariners are advised to navigate with caution in the area. 7. These changes will be included in the next New Edition of Charts 3363 and 3364. (CGCS 2000 DATUM)