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Mississippi River Lock & Dam No. 21

General Information

Beginning of works: 1933
Completion: 23 July 1938
Status: in use

Project Type

Structure: Radial gate barrage
Roller drum gate barrage
Function / usage: Lock

Location

Location: , , ,
Impounds:
  • Mississippi River
Coordinates: 39° 54' 20.29" N    91° 25' 52.26" W

Technical Information

Dimensions

crest length 385.6 m
lock width 33.5 m
length 182.9 m

Participants

Relevant Web Sites

  • About this
    data sheet
  • Structure-ID
    20030590
  • Date created
    24/08/2007
  • Last Update
    05/06/2017