Louisiana Highway 640
|Maintained by Louisiana DOTD|
|Length:||2.20 mi (3.54 km)|
|South end:||LA 3127 south of Edgard|
|North end:||LA 44 / LA 53 in Reserve|
|Parishes:||St. John the Baptist|
From the south, LA 640 begins at an intersection with LA 3127 south of Edgard and just west of West St. John High School. It heads north toward the Mississippi River where it meets LA 18. A few feet to the left of this intersection (in front of the St. John the Baptist Parish Courthouse), LA 640 crosses the river via the Edgard-Reserve Ferry. The highway ends at the landing on the east bank side at an intersection with LA 44 and LA 53.
With the exception of the ferried portion, is an undivided, two-lane highway for its entire length.
The entire route is in St. John the Baptist Parish.
|Edgard||0.00||LA 3127||Southern terminus|
|2.1||LA 18 (River Road)||Begin LA 18 overlap|
|2.15||LA 18 (River Road)||End LA 18 overlap|
|Edgard-Reserve Ferry over the Mississippi River|
|Reserve||2.20||LA 44 (River Road/Jefferson Highway) / LA 53 (Central Avenue)||Northern terminus
road continues as LA 53