|Carries||4 lanes of LA 70|
|Locale||unincorporated St. James Parish, Louisiana|
|Total length||8,236 feet (2,510 m)|
|Longest span||825 feet (251 m)|
|Clearance below||170 feet (52 m)|
|Construction cost||$40 million|
|Closed||October 2018; expected to reopen late January or early February 2019|
The Sunshine Bridge is a cantilever bridge over the Mississippi River in St. James Parish, Louisiana. Completed in 1963, it carries Louisiana Highway 70 (LA 70), which connects Donaldsonville on the west bank of Ascension Parish with Sorrento on the east bank of Ascension Parish as well as with Gonzales on the east bank of Ascension Parish. The approach roads on the east and west banks begin in Ascension Parish before crossing into St. James Parish.
The bridge is a convenient river crossing for residents of Baton Rouge, Hammond, and the Florida Parishes to travel to the Bayou cities of Houma and Thibodaux as well as vice versa. The bridge plays an important role in storm evacuation and in industrial development along the Mississippi.
From its opening in 1964 through August 15, 2001, a 50-cent toll was collected on traffic crossing to the west bank. The toll was discontinued by an act of the Louisiana Legislature, authored by Louisiana State Representative Roy Quezaire (D-Donaldsonville), whose district includes the bridge.
Bridges to Nowhere
The bridge gained national attention in 2008 when it became part of the Bridge to Nowhere controversy which arose during the US Presidential Election. Focused primarily on the Alaskan Governor/Vice Presidential Candidate Sarah Palin's efforts to secure federal funding for the Gravina Island Bridge, the Sunshine Bridge got lumped into the same category. While the only bridge across the Mississippi between New Orleans and Baton Rouge when it opened for traffic in 1964, its south end then emptied into a swamp, and for years it awaited funding to connect it to LA 70 and other roads. When this occurred, the economy in this area grew by leaps and bounds, largely due to the improved transportation. And as has been pointed out, comparing the Sunshine Bridge to the Gravina Bridge was grossly unfair, given that the Alaskan bridge would always lead to nowhere. Much of this hoopla involved residual resentment from the bridge being named to recognize Governor Jimmie Davis. Built under his administration, Davis had twice picked and sung his way into the Governor's Mansion with hits like "You Are My Sunshine”  and whose horse, which he rode into the Governor's office at his second inaugural, was also named Sunshine
Due to deterioration across the bridge, the Sunshine Bridge was closed to all traffic starting in October 2018 for a comprehensive rehabilitation project, which is expected to be completed in late January or early February 2019. While the need for such a project was needed and supported by local residents, the loss of this Mississippi River crossing means that traffic must take a significant detour to either the Gramercy Bridge or the Horace Wilkinson Bridge, a detour that is at least 10 miles (16 km) in length. Extensive signage warning motorists of the bridge closure well in advance has been erected on each side, including detour signs at the interchange of LA 70 with Interstate 10 some five miles (8.0 km) north of the bridge.
- McCormick, Bret H. (March 13, 2013). "Lawmaker Pushes to Reimpose tolls on Sunshine Bridge". The Advocate. Retrieved August 6, 2014.
- "Sunshine Bridge". John Weeks. Retrieved August 28, 2018.
- "Donaldsonville Louisiana-Sunshine Bridge". Waymarketing. Retrieved August 27, 2018.
- "Jimmie Davis-You are my Sunshine". Retrieved August 27, 2018 – via You Tube.
- "Singing Governor is Dead". The New York Times. Retrieved August 28, 2018.