the Mobile River via the Cochrane–Africatown USA Bridge, co-signed with US 90. Passenger car traffic passes directly into town under the Mobile River via the Bankhead Tunnel. Once the truck route rejoins the main route in downtown Mobile, US 98 assumes a northwestward trajectory, and enters Mississippi near the community of Wilmer in western Mobile County. US 98 is the southern terminus of two major U.S. highways: US 31, at Spanish Fort, and US 45 in Mobile. The safety of the route, or the lack thereof, has earned the road the nickname "Bloody 98". A plan to remediate the problem has not been adopted, and is hampered by the financial damage imposed to road repairs by higher vehicle fuel efficiency (as gas taxes largely go to road repair) and the diversion of roadway funds to other projects like greenways and public transportation. Also, environmentalists have gone to court on numerous occasions to block proposals to turn the stretch of US 98 from the Alabama–Mississippi line to the town of Semmes, Alabama, into a four-lane, fearing that construction runoff would cause contamination of Big Creek Lake (where Mobile gets its municipal water supply) and its surrounding wetlands. Florida Within Florida, US 98 is marked as an east–west road from the Alabama-Florida border to Perry. Throughout the rest of the state, the road is marked as a north–south road. Concurrencies include US 441 from Royal Palm Beach to Okeechobee, US 27 from South Sebring to West Frostproof, US 17 from Fort Meade to Bartow, US 301 from Clinton Heights to Moss Town, SR 50 from Ridge Manor to Brooksville, SR 50A then US 41 in Brooksville, US 19 from Chassahowitzka to Perry, ALT US 27 from Chiefland to Perry, US 319 in Medart and from St. Theresa to Port St. Joe, and US 90 in Pensacola. The hidden designation for most of US 98 across the panhandle of the state of Florida is State Route 30. Between Chassahowitzka and Palm Beach, the hidden designation is State Route 700. There is a 60 mph speed limit east of Tyndall Air Force Base outside of Panama City all the way to Perry. History US 98 was first commissioned in 1934. At that time, its entire route was within Florida, traveling from Pensacola to Apalachicola. In 1952, the eastern end was extended to its present terminus in Palm Beach, Florida. In 1955, the western terminus