Columbia Lock & Dam   |   Ouachita/Black Mile 117.0   |   318-649-2049
Navigation Pass	61.5'
Upper Navigation Pool	52'
Lower Navigation Pool	34'
Upper Lock Sill	34'
Lower Lock Sill	21'
Top of Lock Wall	64'
Top of Miter Gates	64'
Concrete Spillway Elevation	50.5'
Top of Closed Spillway Gates	50.5'
Embankment Elevation	60'

All elevations are in NGVD.
Spillways are hinged crest or fixed weir elevations.

POC for this page:

    Ryan Hoben
    601-631-5589
    Vicksburg, MS
    Ryan.M.Hoben@usace.army.mil