Reevaluation ofSR 144 at I-95 Southbound and Northbound Off Ramps

The project proposes improvements to SR 144 at the I-95 Interchange and to the I-95 northbound and southbound off ramps. The project limits along SR 144 should not extend more than approximately 500 feet west of the I-95 southbound ramp intersection and 500 feet east of the I-95 northbound ramp intersection. The project limits along the I-95 southbound exit ramp should not extend more than approximately 800 feet from the center of the exit ramp intersection down the exit ramp approach. The project limits for I-95 southbound entrance ramp and the I-95 northbound exit and entrance ramps should not extend more than approximately 150 feet from the center of the exit ramp intersection down the exit ramp approach.

The proposed typical section for SR 144 includes two 11-foot travel lanes in each direction under the I-95 overpass and opposing 11-foot left turn lanes for the I-95 northbound and southbound entrance ramps under the I-95 overpass extending out as storage requires. SR 144 will have variable width rural shoulders; existing curb and gutter will be retained or replaced and all work will remain within the existing pavement limits of SR 144. SR 144 improvements will also include a right turn lane for the I-95 southbound entrance ramp. The additional lane will be added to the outside of the existing pavement limits of SR 144.

The typical section for the I-95 southbound exit ramp will be improved to have two 12-foot left turn lanes and one 12-foot right turn lane at the approach to SR 144 with 12-foot shoulders and rural side ditches. The additional lane will be added to the outside of the existing southbound exit ramp. The I-95 southbound entrance ramp will be modified at the intersection with SR 144 to tie into the SR 144 improvements. The I-95 northbound exit ramp will be improved at its intersection with SR 144 to have one 16-foot left turn lane with a right turn slip lane at the approach to SR 144 and to tie into the SR 144 improvements. The I-95 northbound entrance ramp layout will remain the same.

Drainage structures will be relocated at the existing ramp approaches to tie to the proposed ramp approaches, the ditch along the I-95 southbound exit ramp will be relocated to the west of its existing location to allow for the additional lane to be added to the ramp. Additionally, as part of the proposed project, a new traffic signal will be studied and installed if warranted at the I-95 northbound exit/entrance ramp. Crosswalks and curb cuts will be added at the I-95 northbound ramp approaches. All work would take place within existing ROW. No detour is anticipated for this project.