Lock and Dam No. 22

Infobox_Dam
dam_name=

---

caption=Mississippi River Lock and Dam number 22
official_name=
crosses= Upper Mississippi River
reservoir=Pool 22
locale=Saverton, Missouri
maint= United States Army Corps of Engineers
length= convert|1224|ft|m|1 (movable portion)
height=
width=
began=1934
open=July 22, 1938
closed=
reservoir_capacity=
reservoir_catchment=
reservoir_surface=
coordinates= coord|39|38|18|N|91|14|49|W|region:US_type:landmark
extra=location map|Missouri|label= |lat_deg=39|lat_min=38|lat_sec=18|lon_deg=-91|lon_min=-15

Lock and Dam No. 22 is a lock and dam located near Saverton, Missouri on the Upper Mississippi River around river mile 301.2. The movable portion of the dam is convert|1224|ft|m|1 long and consists of three roller gates and ten tainter gates. A convert|1600|ft|m|1 long submersible earthen dike extends to a flood control levee on the Illinois shore. The main lock is convert|110|ft|m|1 wide by convert|600|ft|m|1 long there is also an incomplete auxiliary lock. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 22 Historic District, #04000182 covering convert|1268|acre|km2|1, 1 building, 5 structures, 4 objects.

When the northern part of Mississippi freezes, near the first week of February, upwards of 20 Bald Eagles fly down to fish in the churning waters below Lock and Dam No. 22.

External links

* [http://hdl.loc.gov/loc.pnp/hhh.mo1076 HAER - Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 22, Upper Mississippi River, Saverton, Ralls County, MO]