The lower half of a rubber shouldered pump case on the "William A. Thompson" is shown after pumping 1,042,072 cubic yards of the Upper Mississippi. This photograph shows the rubber shoulder, engine side, removed. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The rubber impeller liner of a rubber shouldered pump case from the Dredge "William A. Thompson" . This photograph was taken after the dredge pumped 1,042,072 cubic yards of the Upper Mississippi and its tributaries. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The lower half of a rubber shouldered pump case on the "William A. Thompson" is shown after pumping 1,042,072 cubic yards of the Upper Mississippi. This pump case has the rubber shoulder, suction side, in place. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The lower half of a rubber shouldered pump case on the "William A. Thompson" is shown after pumping 1,042,072 cubic yards of the Upper Mississippi. This pump case has the rubber shoulders removed. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The lower half of a rubber shouldered pump case on the "William A. Thompson" is shown after pumping 1,042,072 cubic yards of the Upper Mississippi. This photograph shows the rubber shoulder, engine side, in place. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Sections of rubber shoulder liners from the Dredge "William A. Thompson" . These rubber shoulder liners were removed after pumping 1,042,072 cubic yards of the Upper Mississippi. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The upper half of a rubber shouldered pump case on the Dredge "William A. Thompson" . This photograph was taken after the dredge pumped 1,042,072 cubic yards of the Upper Mississippi. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The suction sidehead and cast liner of a rubber shouldered pump case from the Dredge "William A. Thompson" . This photograph was taken after the dredge pumped 1,042,072 cubic yards of the Upper Mississippi and its tributaries. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The impeller of a rubber shouldered pump case from the Dredge "William A. Thompson" . This photograph was taken after the dredge pumped 2,178,557 cubic yards of the Upper Mississippi and its tributaries. Dredge "William A. Thompson" is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
A potable water barge for the Dredge "William A. Thompson" at pontoon P-10. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
A protection dike at a boatyard on the Upper Mississippi, part of the Upper Mississippi river improvement project worked by the Dredge "William A. Thompson" . The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
An anchor barge is visible alongside the U.S. Dredge "William A. Thompson" . The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The tailwater area pool associated with the Onalaska dam project at normal elevation. This photograph was taken from a point on line with the north side of the Burlington Railroad depot and at a point located on the embankment shoulder about 13 feet from the westerly rail, with a headwater elevation of 638.90 and a tailwater elevation of 631.35. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
The tailwater area pool associated with the Onalaska dam project at normal elevation. This photograph was taken from a point on line with the north side of the Burlington railroad depot and at a point located on the embankment shoulder about 13 feet from the westerly rail, with a headwater elevation of 638.90 and a tailwater elevation of 631.55. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
The tailwater area pool associated with the Onalaska dam project at normal elevation. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
The tailwater area pool at normal elevation, part of the Onalaska dam project. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
The tailwater area pool at normal elevation, part of the Onalaska dam project. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
The tailwater area pool at normal elevation, part of the Onalaska dam project. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
A chain link fence runs in front of the tailwater area at normal elevation, part of the Onalaska dam project. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
A chain link fence runs along the dike at the tailwater pool at normal elevation, part of the Onalaska dam project. The Onalaska dam project was undertaken as a part of improvements to the Upper Mississippi River.
A general view of the pool at normal elevation, part of the Onalaska dam construction project. Construction of the Onalaska dam was undertaken as a part of improvements to the Upper Mississippi River.
A general view of the pool at normal elevation, part of the Onalaska dam construction project. Construction of the Onalaska dam was undertaken as a part of improvements to the Upper Mississippi River.
Discharge through the culvert section pool of the Onalaska dam at normal elevation. The Onalaska dam construction project was undertaken as a part of improvements to the Upper Mississippi River.
Men study the discharge the end pontoon of the U.S. Dredge "William A. Thompson" , visible in the background. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.