Interstate 59 South

The loop ramp (Exit 11) for the Pearl River Turnaround departs I-59/U.S. 11 immediately south of the Pearl River.

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The state welcome sign appears just south of the first I-59 shield in Louisiana and the Pearl River Turnaround (Exit 11).

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Interstate 59 south reaches the town of Pearl River in five miles. The city of Slidell lies just beyond the south end in 12 miles, followed by New Orleans via I-10 west in 40 miles.

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I-59/U.S. 11 enter Pearl River Wildlife Management Area south of milepost nine near Clear Bayou.

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A folded diamond interchange (Exit 5 B) connects I-59 with Pearl River Wildlife Management Area at Honey Island Swamp in one half mile.

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Exit 5B connects the freeway with services roads and Old U.S. 11 to the north of the West Pearl River. A handful of fish camps line bayous to the west. Old Highway 11 spurs east into Pearl River Wildlife Management Area, but it is not open for public use.

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I-59/U.S. 11 next meet LA 3081 at the town of Pearl River. LA 3081 replaced a portion of LA 41 Spur, a decommissioned highway that followed Pine Street west to Hickory Street north and LA 41.

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LA 3081 follows Main Street (old U.S. 11) south through Pearl River to the intersection of Watts Road (LA 41 north) and U.S. 11 (Concord Boulevard) north.

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A Norfolk Southern Railroad line parallels Interstate 59 southward from Pearl River County, Mississippi to Pearl River. The railroad parts ways with I-59 from the West Pearl River swing bridge to follow LA 3081 and U.S. 11 into Alton and Slidell.

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Exit 5 A departs I-59/U.S. 11 south for adjacent Pump Slough Road / LA 3081. Pearl River Town Hall lies just west of LA 3081 at the intersection of Pine and Church Streets. LA 41 stems north from U.S. 11 and LA 3081 to Hickory and Bush.

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U.S. 11 splits with Interstate 59 south at the diamond interchange (Exit 3) with LA 1090 (Military Road) in one mile.

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I-59/U.S. 11 south curve eastward by this set of shields in Pearl River.

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U.S. 11 follows Concord Boulevard northwest from Exit 3 to LA 41 (Watts Road) north and LA 3081 north. South from there, the US route follows the original alignment through Slidell to the Five Mile Bridge across Lake Pontchartrain.

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Southbound at Exit 3 to U.S. 11 south and LA 1090 south. LA 1090 follows Military Road south from Pearl River and I-59 to a number of subdivisions through the eastern outskirts of Slidell. The state highway concludes at the U.S. 190 turn from Gause Boulevard southward onto Military Road.

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The final confirming marker for Interstate 59 south, posted 449 miles from I-24 by Lookout Mountain, Tennessee.

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Downtown Slidell is another four miles out via Interstate 10 west to U.S. 190 (Gause Boulevard) west. New Orleans is 32 miles to the southwest via I-10.

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The Louisiana welcome center lies along Interstate 59 southbound ahead of Brown Switch Road.

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A cloverleaf interchange with two wyes (Exits 1A/B/C) joins Interstate 59 with I-10 and I-12 west in 1.50 miles.

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The tourist information center near Slidell doubles as the final rest area for Interstate 59 southbound.

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The next three interchanges along Interstate 10 west (U.S. 190, U.S. 190 Business, LA 433) serve the city of Slidell. I-10 east leaves the state for Hancock County, Mississippi.

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Exit 1A departs from I-59 south at the Browns Switch Road overpass for Interstate 12 west to Hammond and Baton Rouge. I-12 comprises a well traveled route between Slidell and Covington along the northern periphery of Lake Pontchartrain.

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Continuing beyond Exit 1A for I-12, Interstate 59 defaults onto I-10 west to New Orleans (Exit 1C) with a loop ramp (Exit 1B) joining I-10 east to Gulfport, Biloxi and Mobile, Alabama.

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I-59 ends at the separation of Exits 1 B and 1 C. Interstate 10 west spans Lake Pontchartrain in seven miles. Eastbound reaches the exit for Bay St. Louis, Mississippi in 20 miles.

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