Google Street View Timelapse road trip - US-11 N - Louisiana Mile 18 to Mississippi Mile 7

Slidell to Mississippi state line
In Slidell, US 11 curves to the northwest and intersects Louisiana Highway 433 (LA 433; Old Spanish Trail). The center lane disappears, and the two highways run concurrent for a short distance until reaching an intersection with Front Street. Here, US 11 turns back to the northeast alongside the NS tracks while LA 433 continues straight ahead across the rail line onto Bayou Liberty Road. US 11 follows Front Street through Slidell's historic district and intersects US 190 Business (US 190 Bus.) at Fremaux Avenue, beginning a brief concurrency for several blocks to a junction with mainline US 190 at Gause Boulevard. Here, US 190 Bus. reaches its western terminus, and US 11 continues northward along Front Street, narrowing again to an undivided two-lane highway. Just beyond Indiana Avenue, US 11 crosses to the west side of the NS line via an overpass. Proceeding north for one mile (1.6 km), US 11 reaches the northern limit of Slidell and enters a partial cloverleaf interchange with I-12 at exit 83, briefly widening to a divided four-lane highway. I-12 connects with Hammond to the west and a major interchange with I-10 and I-59 a short distance to the east.[4][6]

Returning to two-lane capacity, US 11 continues north through the small suburb of Alton and intersects LA 1091 (Robert Boulevard), entering the town of Pearl River. One mile (1.6 km) later, the highway intersects LA 41 (Watts Road), which heads north toward Bogalusa. From this intersection, LA 3081 continues north along Main Street while US 11 turns southeast onto Concord Boulevard and crosses the NS line at grade. Shortly afterward, US 11 enters an interchange with I-59 at exit 3, which also marks the northern terminus of LA 1090 (Military Road). US 11 turns north to follow the onramp to I-59 and utilizes the Interstate's alignment for the remainder of its distance in Louisiana.[4][6]

After 1.5 miles (2.4 km), I-59/US 11 reaches exit 5A, which forms the northern terminus of LA 3081 and provides another connection to Pearl River. Immediately following this interchange, the highway crosses a bridge over the West Pearl River. Just north of the bridge is exit 5B, an interchange with a local road known as Old US 11, part of the pre-Interstate alignment that now serves Pearl River Wildlife Management Area. Exiting the Pearl River corporate limits, I-59/US 11 proceeds northward through the Honey Island Swamp and, after 5.3 miles (8.5 km), reaches its final interchange, exit 11 (Pearl River Turnaround). It then crosses the main branch of the Pearl River into Mississippi at a point 2.5 miles (4.0 km) south of Picayune.[4][6]h