General Information
Project Type
| Structure: |
Tainter gate barrage Roller drum gate barrage Embankment dam |
|---|---|
| Function / usage: |
Lock |
| Material: |
Concrete dam |
Location
| Location: |
Allamakee County, Iowa, USA Crawford County, Wisconsin, USA |
|---|---|
| Impounds: |
|
| Coordinates: | 43° 12' 44.53" N 91° 6' 1.72" W |
Technical Information
Dimensions
| total length | 2 987.0 m | |
| length of movable section | 247.2 m | |
| lock | width | 33.5 m |
| length | 182.9 m | |
| spillway | length | 411.5 m |
Excerpt from Wikipedia
Lock and Dam No. 9 is a lock and dam located near Lynxville, Wisconsin and Harpers Ferry, Iowa on the Upper Mississippi River around river mile 647.9. The lower portion of Pool 9 was formally named Lake Winneshiek. The normal pool elevation behind the dam is 620 feet (189.0 m). It was constructed and placed in operation in July 1937. The site underwent a major rehabilitation from 1989 and 2006. The dam consists of concrete structure 811 feet (247.2 m) long with five roller gates and eight tainter gates. Earth embankment 9,800 feet (2,987.0 m) long with a grouted overflow spillway 1,350 feet (411.5 m) long. The lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. Lock and Dam No. 9 is located 12 miles upstream from Prairie du Chien, Wisconsin. The lock and dam are owned and operated by the St. Paul District of the United States Army Corps of Engineers-Mississippi Valley Division.
Text imported from Wikipedia article "Lock and Dam No. 9" and modified on 23 July 2019 under the CC-BY-SA 3.0 license.
Participants
Currently there is no information available about persons or companies having participated in this project.
Relevant Web Sites
- About this
data sheet - Structure-ID
20030601 - Published on:
24/08/2007 - Last updated on:
18/05/2017
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