Pier 77 Marine Service 7222 Harborside Drive Galveston, Texas 77554 Phone: 409-740-4000 Fax: 409-744-5832 Click on area maps, or here for driving directions. Pier 77 Marine Service Mile Marker 355 I.C.W. From Clear Lake to Pier 77 is 26 Nautical Miles Please call for for assistance entering Pier 77 Harbor. Click here for an interactive, online viewer of Map #11324 Click here for a PNG printable version of ICW Chart *Caution: Extremely High Resolution