| distance | reference number | name | latitude | longitude |
| 422.2 | 1579 | Lake Charles, Calcasieu River, Louisiana | 30.225 | -93.2217 |
| 432.6 | 2129 | Orange (Old Navy Base), Texas | 30.0983 | -93.7217 |
| 440.9 | 2500 | Rainbow Bridge, Neches River, Texas | 29.98 | -93.8817 |
| 441.9 | 3048 | Tchefuncta River, Lake Pontchartrain, Louisiana | 30.3783 | -90.16 |
| 448.1 | 2609 | Sabine Naches Canal, Port Arthur, Texas | 29.8667 | -93.93 |
| 449.2 | 399 | Calcasieu Pass, Lighthouse wharf, Louisiana | 29.7833 | -93.35 |
| 450.3 | 398 | Calcasieu Pass, East Jetty, Louisiana | 29.765 | -93.3433 |
| 450.4 | 1810 | Mermentau River entrance, Louisiana | 29.75 | -93.1 |
| 450.8 | 3286 | Weeks Bay, Vermilion Bay, Louisiana | 29.8 | -91.8333 |
| 453.7 | 1812 | Mesquite Point, Sabine Pass, Texas | 29.7667 | -93.895 |
| 453.8 | 1813 | Mesquite Point, Texas | 29.7667 | -93.9 |
| 455.6 | 723 | Cypremort Point, Louisiana | 29.7133 | -91.88 |
| 455.7 | 2611 | Sabine Pass (north), Texas | 29.73 | -93.87 |
| 455.7 | 2612 | Sabine Pass, Texas | 29.73 | -93.87 |
| 455.8 | 658 | Cote Blanche Island, West Cote Blanche Bay, Louisia | 29.7333 | -91.7167 |
| 456.1 | 2597 | Route 433, Bayou BonFouca, Louisiana | 30.2717 | -89.7933 |
| 456.1 | 853 | East Bank 1, Norco, Bayou Labranche, Louisiana | 30.05 | -90.3683 |
| 460.1 | 2610 | Sabine Pass (jetty), Texas | 29.65 | -93.8333 |
| 462.2 | 2209 | Pearlington, Pearl River, Louisiana | 30.24 | -89.615 |
| 462.4 | 2892 | Southwest Pass, Vermilion Bay, Louisiana | 29.5833 | -92.0333 |
| 462.6 | 1968 | New Canal USCG station, Lake Pontchartrain, Louisia | 30.0267 | -90.1133 |
| 462.6 | 1969 | New Canal USCG station, Lake Pontchartrain, Louisia | 30.0267 | -90.1133 |
| 462.7 | 1056 | Freshwater Canal Locks, Louisiana | 29.555 | -92.305 |
| 464.7 | 3063 | Tesoro Marine Term., Atchafalaya River, Louisiana | 29.6667 | -91.2367 |
| 465.1 | 2595 | Round Point, Trinity Bay, Texas | 29.7333 | -94.7 |