Construction of the Stockwood Fill, 1906–1909

Construction of the Stockwood Fill in Clay County between 1906 and 1909 taught Northern Pacific Railway engineers a bitter lesson about building big on northwestern Minnesota’s former-lake-bottom soil.

Black and white photograph of the Anoka–Champlin Mississippi River Bridge 4380, ca. 1930.

Anoka–Champlin Mississippi River Bridge 4380

Anoka–Champlin Mississippi River Bridge 4380, ca. 1930.

Black and white postcard image of the concrete Anoka–Champlin Mississippi River Bridge, ca. 1929.

Concrete Anoka–Champlin Mississippi River Bridge

Postcard image of the concrete Anoka–Champlin Mississippi River Bridge, ca. 1929.

Black and white postcard image of the Anoka–Champlin Mississippi River Bridge, originally built in 1884, ca. 1920.

Anoka–Champlin Bridge postcard

Postcard image of the Anoka–Champlin Mississippi River Bridge, originally built in 1884, ca. 1920.

Color image of the Anoka–Champlin Mississippi River Bridge carrying U.S. Route 169, 2013. Photographed by Wikimedia Commons user McGhiever.

Anoka–Champlin Mississippi River Bridge

Anoka–Champlin Mississippi River Bridge carrying U.S. Route 169, 2013. Photographed by Wikimedia Commons user McGhiever.

Anoka–Champlin Mississippi River Bridge

Constructed in 1884, the Anoka–Champlin Bridge 4380 was the first structural span of the Mississippi River between Anoka and Champlin. A 1920s renovation strengthened the bridge, replacing the original’s stone materials with steel.

Black and white photograph of a streetcar at Rondo Avenue and Griggs Street, 1947.

Streetcar at Rondo Avenue and Griggs Street

Streetcar at Rondo Avenue and Griggs Street, 1947.

Black and white photograph of aircraft hanger at Camp Ripley, 1939.

Aircraft hanger at Camp Ripley

The aircraft hanger, shown here in a 1939 photo, was built in 1932 and served as home for the 109th Observation Squadron when it trained at Camp Ripley. In the forefront are two Douglas O-38 biplanes; a North American O-47 monoplane peeks out from the hanger.

Black and white photograph of a Duluth, Missabe & Northern Railway ore train, Duluth, ca. 1920. Photographed by Louis Perry Gallagher.

Duluth, Missabe & Northern Railway ore train

Duluth, Missabe & Northern Railway ore train, Duluth, ca. 1920. Photographed by Louis Perry Gallagher.

Black and white photograph of Major General Gouverneur K. Warren, ca. 1863–1865. Photographed by Matthew Brady.

Gouverneur K. Warren

Major General Gouverneur K. Warren, ca. 1863–1865. Photographed by Matthew Brady.

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