The following is a list of state highways in the U.S. state of Louisiana designated in the 650–699 range.
Louisiana Highway 650
Louisiana Highway 650 (LA 650) ran in a southeast to northwest direction between Gray and Schriever, Terrebonne Parish.
From the southeast, LA 650 began at an intersection with LA 316 (Bayou Blue Road) at a point just east of Gray. It proceeded in a northerly direction along Bayou Blue Bypass Road. LA 650 briefly jogged to the east then back to the north, separating from Bayou Blue Bypass Road. It continued north along the Terrebonne – Lafourche Parish line to Martinez Road. Here it turned west onto Waterplant Road, skirting the southern boundary of Schriever. LA 650 entered Schriever then made a jog to the north and back to the west, proceeding to its terminus at LA 24.
LA 650 was an undivided two-lane highway for its entire length.
Louisiana Highway 651
Louisiana Highway 651 (LA 651) ran in a north–south direction along Bowie Road in Raceland, Lafourche Parish.
The route began at LA 308, which runs along Bayou Lafourche, and proceeded to a point on the Texas & New Orleans Railroad line (now the BNSF/Union Pacific Railroad) where the community of Bowie was once located. It was an undivided, two-lane highway for its entire length. Now a ghost town, Bowie once thrived around a lumber mill served by the rail line north of Raceland in the early 20th century.
In the pre-1955 state highway system, LA 651 was designated as State Route 891. LA 651 was created with the 1955 Louisiana Highway renumbering and deleted from the state highway system in 1975.
Louisiana Highway 652
Louisiana Highway 652 (LA 652) runs in a north–south direction from a dead end at Bayou Cut Off to LA 182 in Raceland, Lafourche Parish.
The route initially heads west from a boat launch on Bayou Cut Off then turns north and crosses US 90 via an overpass. The freeway is accessed indirectly by the north service road. LA 652 zigzags west, then northwest along Bayou Folse, north across Bayou Cutoff, and finally northwest a short distance to an intersection with LA 182 just inside Raceland. LA 652 is an undivided two-lane highway for its entire length.
Louisiana Highway 653
Louisiana Highway 653 (LA 653) runs in a north–south direction from a local road south of Bayou Du Mar to LA 182 south of Raceland, Lafourche Parish.
The route heads north from an intersection with Eagle Island Road, a local road, and crosses Bayou Du Mar. It then crosses US 90 via an overpass. The freeway is accessed indirectly by the north service road. LA 653 continues north to an intersection with LA 182 south of Raceland. It is an undivided two-lane highway for its entire length.
Until recently, LA 653 extended west from its current southern terminus along what is now a private road to a second intersection with LA 182, existing as a loop off of that highway. In this form, LA 653 was part of the original route of the Old Spanish Trail, designated as State Route 2 in 1921 (in the pre-1955 Louisiana Highway system) and US 90 in 1926. This route was bypassed in 1938 when US 90 was moved onto what is now LA 182. LA 182 was then bypassed by the current route of US 90 in 1977 (north of Exit 210) and in 1999 (south of Exit 210).
Louisiana Highway 654
Louisiana Highway 654 (LA 654) runs in an east–west direction from LA 1 in Mathews to the Company Canal bridge northwest of Gheens, Lafourche Parish.
The route heads northeast from LA 1 and immediately crosses a vertical lift bridge over Bayou Lafourche. It then intersects LA 308 which, like LA 1, follows alongside the bayou. later, LA 654 curves to the south and proceeds a short distance to a bridge at the Company Canal. A private road crosses the canal and proceeds toward the Golden Ranch Plantation in Gheens. LA 654 is an undivided two-lane highway for its entire length.
Louisiana Highway 655
Louisiana Highway 655 (LA 655) runs in an east–west direction from a local road in Lockport to LA 308 in Rita, Lafourche Parish.
The route begins at the intersection of Main and Vacherie Streets in Lockport. It immediately crosses a swing bridge across Bayou Lafourche into the unincorporated community of Rita. It then turns east and follows East Main Street to a junction with LA 308, the primary highway along the east bank of the bayou. LA 655 is an undivided two-lane highway for its entire length. A spur, in length and signed as the mainline route, follows Vacherie Street in Lockport from the bridge to LA 1 (Crescent Avenue).