House documents, 81st Congress. 325. Gulf Intracoastal Waterway from Big Lagoon to Pensacola Bay, Fla., letter from chief of engineers. Army, submitting report on review of reports on Gulf Intracoastal Waterway to determine whether alternate side channel via land cut from Big Lagoon to Pensacola Harbor, or other alternate route to said harbor, is advisable at this time.