LA 433 is a circuitous route in the Slidell area, navigating 14.84 miles southeast from U.S. 190 at Colt to U.S. 90 at The Rigolets. The western half of the highway loops south to Bonfouca and Liberty Bayou and east along Bayou Liberty Road to U.S. 11 (Front Street) within the city of Slidell.
Beyond the four block overlap with U.S. 11, LA 433 extends southeast along Old Spanish Trail to a commercialized interchange with Interstate 10. Old Spanish Trail turns southward along Fritchz Marsh to Treasure Island along Lake Pontchartrain.
Historically, LA 433 southeast from U.S. 11 in Slidell was part of LA 2 and U.S. 90. This changed with completion of the bridge and causeway system taking U.S. 90 east from The Rigolets to Pearlington, Mississippi.
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| LA 433 commences northwest from U.S. 90 near the Rigolets Bridge to New Orleans. The two routes formerly connected at a two-wye intersection. 10/12/16 |
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| The Rigolets Estates development lines the west side of LA 433 (Old Spanish Trail) along the Rigolets. 10/12/16 |
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| LA 433 curves north between Treasure Island and Little Lagoon. 10/12/16 |
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| Construction underway in 2018/19 replaced the bridge taking Old Spanish Trail across Salt Bayou. 10/12/16 |
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| LA 433 proceeds north along a narrow strip of land between canals. 10/12/16 |
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| Fritche Marsh spreads east between LA 433 (Old Spanish Trail) and U.S. 90 at Apple Pie Ridge. 10/12/16 |
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| LA 433 enters the city of Slidell ahead of the commercialized diamond interchange (Exit 263) with Interstate 10. 10/12/16 |
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| Interstate 10 east travels 3.8 miles to I-59 north for Hattiesburg. 10/12/16 |
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| Southwest from LA 433 (Old Spanish Trail), Interstate 10 leads 28.4 miles to Canal Street in New Orleans. 10/12/16 |
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| LA 433 (Old Spanish Trail) advances northwest from I-10 along a divided, four lane boulevard. 10/12/16 |
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| Coast Boulevard west and Lopez Street east come together at the succeeding traffic light north of Interstate 10. 10/12/16 |
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| The signal at Slidell Avenue serves Abney Elementary school. 10/12/16 |
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| Old Spanish Trail west at Sgt. Alfred Drive. 10/12/16 |
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| LA 433 west combines with U.S. 11 (Pontchartrain Drive) north for 0.29 miles. 10/12/16 |
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| U.S. 11 (Pontchartrain Drive) south leads to Eden Isle and the Maestri Bridge across Lake Pontchartrain. 10/12/16 |
Page Updated 06-26-2023.
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