Rolling on the River

There are to be intelligent transportation system (ITS) upgrades to four bridges over the lower Mississippi River: the Natchez-Vidalia Bridge, the Vicksburg Bridge, the Greenville Bridge, and the Helena Bridge. The upgrades will include a Doppler radar system to measure currents to help stop barges crashing into the bridges. In the spring of 2011, barges hit bridges in two separate incidents, causing traffic on both road and river to be stopped. The bridges in question are the only ones spanning the river on the borders of Mississippi, Arkansas, and Louisiana, and the project is, therefore, a joint operation of the Mississippi Department of Transportation, Arkansas Highway and Transportation Department, and the Louisiana Department of Transportation and Development. The radar system, called Real Time River Current (RTRC) sensors, will be installed on piers, rising up and down with water levels. Underwater acoustic Doppler Radar technology will follow river current patterns that may cause river traffic to drift out of bridge approach lanes. All upgrades and additions will be integrated into the traffic management system currently in place. The project will expand on the existing ITS in all three states and stand as a credit to the cooperation efforts of all three states.


  • English

Media Info

  • Media Type: Print
  • Features: Photos;
  • Pagination: pp 15, 17, 19
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01495377
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 9 2013 8:49PM