Lock and Dam No. 24

Lock and Dam No. 24
Mississippi River Lock and Dam No. 24
Location	Belleview Precinct, Calhoun County, Illinois / Clarksville, Missouri, USA
Coordinates	39°22′36″N 90°54′30″W / 39.37667°N 90.90833°W / 39.37667; -90.90833
Construction began	July 1936
Opening date	March 12, 1940
Operator(s)	U.S. Army Corps of Engineers, St. Louis District
Dam and spillways
Impounds	Upper Mississippi River
Length	1,340 feet (408.4 m)
Reservoir
Creates	Pool 24
Total capacity	125,363 acre⋅ft (0.154633 km³)
Catchment area	140,900 sq mi (365,000 km²)


Lock and Dam No. 24 Historic District
U.S. National Register of Historic Places
U.S. Historic district

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Location	350 N. First St., Clarksville, Missouri
Area	102.7 acres (41.6 ha)
Built	1940
MPS	Upper Mississippi River 9-Foot Navigation Project MPS
NRHP reference No.	04000183^[1]
Added to NRHP	March 10, 2004

Lock and Dam No. 24 is a lock and dam located near Clarksville, Missouri around river mile 273.4 on the Upper Mississippi River. The main lock is 110 feet (33.5 m) wide and 600 feet (182.9 m) long with its bottom at an elevation of 430 feet. The auxiliary lock is not operational. Normal pool elevation behind the dam is 449 feet. The movable portion of the dam is 1,340 feet (408.4 m) long and consists of 15 submersible, elliptical, tainter gates. A 2,720 feet (829.1 m) submersible earthen dike extends from the movable dam to the Illinois shore.^[2] In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 24 Historic District, #04000183 covering 1,027 acres (4.2 km²), 3 buildings, 15 structures, 4 objects.

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References

^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
^ "Lock and Dam 24 Information Sheet" (PDF). U.S. Army Corps of Engineers. Retrieved September 11, 2017.

External links

Media related to Mississippi River Lock and Dam number 24 at Wikimedia Commons
Lock and Dam No. 24 - U.S. Army Corps of Engineers
Clarksville Visitor center, near the lock and dam with additional dimensions of the dam
Lock 24
Historic American Engineering Record documentation:
- HAER No. MO-36, "Upper Mississippi River Nine-Foot Channel Project, Lock & Dam No. 24, Clarksville, Pike County, MO", 44 photos, 9 data pages, 3 photo caption pages
- HAER No. MO-50, "Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Nos. 24-27, Clarksville, Pike County, MO", 125 data pages

List of locks and dams of the Upper Mississippi River

USAF
LSAF
1
2
3
4
5
5A
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27

Upstream:
Lock and Dam No. 22

Downstream:
Lock and Dam No. 25

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