Manchac is a small town in Tangipahoa Parish, Louisiana.
Manchac is located on Lake Maurepas on the Pass Manchac waterway, which connects to Lake Pontchartrain. It is home to the ruins of one of the five lighthouses set up for Lake Pontachartrain. The existing lighthouse (the fourth on the site) was completed in 1857 and decommissioned in 1952.
Acadia - Allen - Ascension - Assumption - Avoyelles - Beauregard - Bienville - Bossier - Caddo - Calcasieu - Caldwell - Cameron - Catahoula - Claiborne - Concordia - De Soto - East Baton Rouge - East Carroll - East Feliciana - Evangeline - Franklin - Grant - Iberia - Iberville - Jackson - Jefferson - Jefferson Davis - La Salle - Lafayette - Lafourche - Lincoln - Livingston - Madison - Morehouse - Natchitoches - Orleans - Ouachita - Plaquemines - Pointe Coupee - Rapides - Red River - Richland - Sabine - St. Bernard - St. Charles - St. Helena - St. James - St. John the Baptist - St. Landry - St. Martin - St. Mary - St. Tammany - Tangipahoa - Tensas - Terrebonne - Union - Vermilion - Vernon - Washington - Webster - West Baton Rouge - West Carroll - West Feliciana - Winn
The Pentagon Barracks was later acquired by the state of Louisiana and has served as dormitories for LouisianaState University, as state offices, and as apartments for high-ranking state officials and employees, including (at present) the lieutenant-governor.
In 1846, the Louisianastate legislature decided to move the seat of government away from New Orleans -- largely because a growing majority of legislators and state officials were fundamentalist Protestants and regarded the hedonistic Crescent City with distaste.
LouisianaState University moved from New Orleans to temporary quarters at the old arsenal and barracks and Southern University relocated from New Orleans to Scotlandville (just north of Baton Rouge at the time but now within the city limits).