| distance | reference number | name | latitude | longitude |
| 233.3 | 3048 | Tchefuncta River, Lake Pontchartrain, Louisiana | 30.3783 | -90.16 |
| 241.2 | 2597 | Route 433, Bayou BonFouca, Louisiana | 30.2717 | -89.7933 |
| 242.9 | 184 | Bay Waveland Yacht Club, Bay St. Louis, Mississippi | 30.325 | -89.325 |
| 242.9 | 2922 | St. Louis Bay entrance, Mississippi | 30.325 | -89.325 |
| 243.5 | 1702 | Lower Bryant Landing, Tensay River, Alabama | 30.9783 | -87.8733 |
| 244.5 | 2209 | Pearlington, Pearl River, Louisiana | 30.24 | -89.615 |
| 244.6 | 1182 | Gulfport, Gulfport Harbor, Mississippi | 30.36 | -89.0817 |
| 244.9 | 3279 | Waveland, Mississipi Sound, Mississippi | 30.2817 | -89.3667 |
| 244.9 | 3280 | Waveland, Mississippi | 30.2817 | -89.3667 |
| 245.0 | 258 | Biloxi, Biloxi Bay, Mississippi | 30.4117 | -88.9033 |
| 247.1 | 257 | Biloxi (Cadet Point), Biloxi Bay, Mississippi | 30.39 | -88.8567 |
| 248.3 | 2096 | Ocean Springs, Mississippi | 30.3917 | -88.7983 |
| 249.9 | 1705 | Lower Hall Landing, Tensaw River, Alabama | 30.8167 | -87.9167 |
| 251.2 | 1859 | Mobile (Mobile State Docks), Alabama | 30.7083 | -88.0433 |
| 251.4 | 481 | Cat Island, Mississippi | 30.2317 | -89.1167 |
| 253.0 | 853 | East Bank 1, Norco, Bayou Labranche, Louisiana | 30.05 | -90.3683 |
| 253.5 | 530 | Chef Menteur, Chef Menteur Pass, Louisiana | 30.065 | -89.8 |
| 254.5 | 1968 | New Canal USCG station, Lake Pontchartrain, Louisia | 30.0267 | -90.1133 |
| 254.5 | 1969 | New Canal USCG station, Lake Pontchartrain, Louisia | 30.0267 | -90.1133 |
| 255.3 | 2193 | Pascagoula NOAA Lab, Pascagoula River, Mississippi | 30.3583 | -88.5667 |
| 255.9 | 1136 | Grand Pass, Mississippi | 30.1267 | -89.2217 |
| 256.2 | 1823 | Michoud Substation, ICWW, Louisiana | 30.0067 | -89.9367 |
| 256.7 | 2186 | Paris Road Bridge, Mississippi River Delta, Louisia | 30 | -89.9333 |
| 256.9 | 2321 | Point of Pines, Bayou Cumbest, Mississippi | 30.3867 | -88.44 |
| 257.1 | 2194 | Pascagoula Point, Mississippi Sound, Mississippi | 30.34 | -88.5333 |