<P> The Lake Pontchartrain Causeway , sometimes only the Causeway , is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana , United States . The longer of the two bridges is 23.83 miles ( 38.35 km ) long . The southern terminus of the Causeway is in Metairie , Louisiana , a suburb of New Orleans . The northern terminus is at Mandeville , Louisiana . </P>
<P> The Lake Pontchartrain Causeway , sometimes only the Causeway , is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana , United States . The longer of the two bridges is 23.83 miles ( 38.35 km ) long . The southern terminus of the Causeway is in Metairie , Louisiana , a suburb of New Orleans . The northern terminus is at Mandeville , Louisiana . </P>
where is the longest bridge in the united states located
where is the longest bridge in the united states located
southern Louisiana
southern Louisiana