Alabama State Route 9 Florala. The route is one of several routes used to connect Alabama and points north with the Gulf of Mexico beaches in northwest Florida. From the state line to Montgomery, US 331 and SR 9 follow a north–south orientation. North of Montgomery, SR 9 as a standalone route assumes a more northeast–southwest orientation, and passes through rural areas and small towns in the eastern part of the state. Alabama State Route 9 State Route 9 (SR 9) is one of the longest state highways in the U.S. state of Alabama. From the Florida state line north to Montgomery, SR 9
Miami River (Florida) prevent salt water from traveling inland. The Miami River also became polluted. In 1897, Miami's first sewer line started emptying directly into the river. By the 1950s, 29 sewers were dumping untreated sewage into the river. Dade County constructed a sewage treatment plant on Virginia Key in the 1950s and connected sewer lines to it, routing the raw sewage away from the river. The Miami River is likely the shortest working river in the United States. The Center for Urban & Environmental Solutions reported in 2008: "Waterborne commerce through the Miami River port doubled between an annual level of about