Lock and Dam No. 3

Infobox_Dam
dam_name=

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caption=Mississippi River Lock and Dam number 3.
official_name=
crosses= Upper Mississippi River
reservoir=Pool 3
locale=Red Wing, Minnesota
maint= United States Army Corps of Engineers
length= convert|365|ft|m|1 (movable portion)
height=
width=
began=1935
open=July 1938
closed=
reservoir_capacity=
reservoir_catchment=
reservoir_surface=
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Lock and Dam No. 3 is a lock and dam located near Red Wing, Minnesota on the Upper Mississippi River around river mile 796.9. It was constructed and placed in operation July 1938. The site underwent major rehabilitation from 1988 through 1991. The dam consists of concrete convert|365|ft|m|1 long with 4 roller gates and more than convert|2000|ft|m|1 of earth embankment with a series of upstream spot dikes. The lock is convert|110|ft|m|1 wide by convert|600|ft|m|1 long.

External links

* [http://www.mvp.usace.army.mil/navigation/default.asp?pageid=145&subpageid=162 USACE Lock and Dam 3]
* [http://hdl.loc.gov/loc.pnp/hhh.mn0115 Survey number HAER MN-21 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red Wing vicinity, Goodhue County, MN]