Louisiana Highway 3120 (LA 3120) is a state highway in Louisiana which serves Ascension Parish. Spanning 0.78 miles (1.26 km), it runs southwest to northeast.
LA 3120 serves to connect LA 70 (from the southwest) to LA 18 (River Road) (to the northeast) to the east of Donaldsonville and the southwest of the Sunshine Bridge.
LA 3120 is an undivided, two lane highway for its entirety.
The entire highway is in Donaldsonville, Ascension Parish.
Route map: Google / Bing