I-10: LA 347 - Atchafalaya-Floodway Bridge

The DOTD proposes pavement rehabilitation and widening within the existing right-of-way of Interstate 10 (I-10) from LA 347 interchange continuing eastward to the Atchafalaya Floodway Bridge in St. Martin Parish, Louisiana. The project corridor is approximately 2.4 miles long. Currently, I-10 consists of two travel lanes in each direction.  The project would include full-depth replacement of the pavement within the existing the lanes and a widening of pavement surface on the west bound lanes within the existing median with concrete or cable median protection.  The existing pavement would be completely removed and repaved.  Pavement striping, raised markers, and rumble strips would also be installed. 


Post construction, eastbound I-10 would be striped with two 12-foot travel lanes, a 12-foot outside shoulder, and a 6-foot inside shoulder. The westbound pavement would be striped for three 12-foot travel lanes, a 12-foot outside shoulder, and a 14-foot inside shoulder.


Two lanes in each direction would remain open to traffic during construction. Any lane closures limiting traffic to less than two open lanes would occur at night and would not be continuous throughout the project corridor. As part of project development, DOTD will widen the west bound Bayou Portage bridge. 


Project Documents
H003014_CE_document76 mb4/24/2017
_MEETING Handout 0030141 mb6/4/2015
H003014_powerpoint_presentation706 kb6/4/2015