ICW Information by ICW Statute Mile Marker
STM 601 to 700

Latest Update: 4 Nov 2016

Back to STM 501 - 600 Forward to STM 701-800

STM:
601.8
Nav. Marker / Location: Hell Gate; G87 to G91
Issue: Shoaling; Confusing mark
Vessel Reporting: Onward
Date: 8 Nov 2014; 10:50
Report:

  • The marks are a bit confusing.
  • The mark at the NE mouth, a pile bent with a red & white diamond pattern is a sight mark on the R side of the channel.
  • Take care that current doesn't sweep vessel S onto the shoal at the SE corner of the cut.
  • Shoaling observed: 12.0' ~100' E of DM G89; 11.2' slightly E of DM G91; at Td = +6.9' @ TS = Bradley Pt. Bradley R.

STM: 602.4
Nav. Marker / Location: Ossabaw Sound.

STM:
618.4
Nav. Marker / Location: St. Catherine's Sound.

STM:
632.4
Nav. Marker / Location: Sapelo Sound.

STM:

Nav. Marker / Location: Little Mud River
Issue: Shoaling
Vessel Reporting: Onward
Date: 9 Nov 2014; 08:30
  • Report:
  • At DM R 190, Dmin = 8.9; Td-R = +4.9'; TS = Rockdedundy @ R DM 185 .
  • This section of the ICW has been shoaling for years.
  • The entire section between DM 190 and DM 195 had sections with depths <= 11.4' with Td = 5.4'.
  • The bottom is apparently very soft ooze and Onward has plowed through it in other passages.

STM:
656.6
Nav. Marker / Location: Altamaha Sound

STM: 674.3
Fixed Bridge: Lanier Island
Note: Reported vertical clearance 65'. Clearance tends to be < 65' at high tides.

Issue: Bridge Clearance
Vessel Reporting: Onward
Date: 9 Nov 2014
Report:
  • HB on N side is missing.
  • Reported problem to USCG Sector Charleston
  • Caution: ebb current is very strong.
  • HB-S = ~62.5 - 62.75'; 10:00; Td = +8.1 (High); TS = St Simons Light.
  • HB-S = ~63.1; @1100; Td-F = 7.5'

Issue: Bridge Clearance
Vessel Reporting: Onward
Date: 21 Nov 2013
Report:
  • HB on N side missing.
  • HB-S = ~63' ; @ 11:45; Td = +6.6'; TS = St Simons Light.
  • HB-S = 64.75; @13:00; Td= 5.2'. ~0.75' of VHF antenna touched bridge during transit; Br-Clr =: ~ 65'

STM: 677.5
Nav. Marker / Location: St. Simons Sound

STM: 683 -
Nav. Marker / Location: Jekyll Creek
Issue: Shoaling
Vessel Reporting: Onward
Date: 9 Nov 2014; 13:45
Report:
  • This section of Jekyll Creek has been shoaling for a number of years.
  • Dmin = 6.9' just before C G19 ; Td = +2.3'; falling; TS = Jekyll Point
  • The section between DM G13 and C G19 had depths of 7.9- to 10'
  • In previous years Onward has plowed through the soft mud in this area near low tide.

STM: 684.3
Fixed Bridge: Jekyll Creek
Note
: Reported vertical clearance 65'.


Nav. Marker / Location: Jekyll Creek FB
Issue: Bridge Transit Data
Vessel Reporting: Onward
Date: 9 Nov 2014; 13:45
Report:
  • HB-N & HB-S = >66.5'; Td-F = +2.3'; TS = Jekyll Point
  • Onward's VHF Antenna fully cleared. Br-Clr = >65.75'

STM: 689.6
Nav. Marker / Location: St. Andrews Sound.

STM:
~699.6
Nav. Marker / Location: N R32 to C G31A
Issue: Shoaling
Vessel Reporting: Onward
Date: 9 Nov 2014; 14:30
Report: D = 8.3'; Shoaling encountered ~ 100 yds E of N R32; Td-F = +1.1; TS = Jekyll Point.


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