Big Pass Information

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  • Big Pass Information
    • Big Pass information as of November 12th, 2016.  

      Soundings were taken on November 8th 
      , 2016. The course remains unchanged as does the controlling depths of 5.5'.  

      The course heading out starts 114 yards WNW of Red BP8 at BPS8 27°16.679'N 082°34.365'W. Head about  149M for .16 nm to BPS7 at 27°16.537'N 082°34.272'W.  
       Then continue on 173M   for .28 nm to BSP4 at 27°16.262'N 082°34.233'W.  Then proceed on a heading of about 178M for .14nm to BSP3 at  27° 16.125'N 82° 34.227'W. Finally head to a point in deeper water at 27° 15.930'N  82° 34.444'W between the entrance marks.  The course appears to have a controlling depth of about 5.5' at MLLW. Traverse this route slowly on a rising tide, mid-tide or above depending on your draft. As with any course, changes including shoaling have occurred and will continue. The coordinates were taken with GPS/WAAS, but your readings could be different.  Please note that the actual MLLW may be less than the predicted MLLW on any given day. To see how the tide is running you can check St. Petersburg for an approximation of the predicted vs. actual difference. The tides you need to get from the Sarasota Bay station.

      It is highly advisable to take the next steps and view the most current chart so you can see all of the depth detail in the area.  To get the actual detailed chart you will need to use Google Earth. It is a free program which can be downloaded from this link. Once you have Google Earth installed, click on the following link to get the depth details of the most recent runs. 

      Then click on the .kmz file of interest and then download it to your system (after you delete the last run from your Google Earth). Enlarge the route to see all the detail. If you see an area on the course that has no contour lines you can be sure that it was at least 5.5' at the time the soundings were taken. Remember that the sand in Big Pass is constantly shifting and what conditions exist today are more than likely different than they were yesterday.

  • Weather Conditions
    • For the latest weather conditions you can check and click on the area of the map in which you are interested. In addition, be aware that when the wind has been blowing strongly with any northern or easterly component within the past day or two, that the water tends to get blown out of the pass thereby lowering the water level. Finally, if there is a swell running remember that the trough will be that much lower. Changes, including shoaling, can and will occur.

    • The following LAT/LON list has been updated by Sarasota County on 5/2/16  




      Marker "BP-1"
      Marker "BP-2"
      Marker "BP-3" 
      Marker "BP-4" 
      Marker "BP-5" 
      Marker "BP-6"
      Marker "BP-8"

      Marker "BP-16"

      27°15.950'N 082°34.482'W
      27°15.927'N 082°34.404'W
      27°16.112'N 082°34.254'W
      27°16.318'N 082°34.267'W
      27°16.345'N 082°34.321'W
      27°16.576'N 082°34.310'W
      27°16.675'N 082°34.300'W

      27°18.313'N 082°33.650'W

      Not for Navigational Purposes
      Flat Earth Society Big Pass Course as of 5/21/16 from the Gulf of Mexico to near SYC sign.



      Deeper Water
      BSP 3
      BSP 7

      BSP 8
      BSP Point
      BSP 9
      BSP 11
      BSP 13
      Near SYC Sign

      27°15.930'N 82°34.444'W
      27°16.125'N 82°34.227'W
      27°16.262'N 82°34.233'W
      27°16.537'N 82°34.272'W
      27°16.679'N 82°34.365'W
      27°16.770'N 82°34.272'W
      27°17.057'N 82°33.930'W
      27°17.250'N 82°33.830'W
      27°17.550'N 82°33.700'W

      Not for Navigational Purposes


      Many thanks to Mike Solumn, the SPD dive team, the Sheriff’s Marine unit, FWC and our community partners;
      Reef Innovations and Bluewater Environmental for helping to have this hazard removed.