michael petersen

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The Engineers at Vicksburg, Part Four: Grant's Canal

The Engineers at Vicksburg, Part Four: Grant's Canal

Construction (woodcut): During the naval siege of Vicksburg, Brig. Gen. Thomas Williams put his men to work with pick and shovel to excavate a canal across the base of De Soto Point, opposite Vicksburg, in a fa... More

The Engineers at Vicksburg, Part 05: The Line of Defense - Map of the City’s Defenses

The Engineers at Vicksburg, Part 05: The Line of Defense - Map of the ...

Map of the City’s Defenses: The line of defense around Vicksburg as designed and constructed consisted of nine major forts connected by a continuous line of rifle-pits. The line was anchored on the Mississippi ... More

Hands-on historian works to share the story of Army Engineer R&D

Hands-on historian works to share the story of Army Engineer R&D

Terry Winschel, historian for the U.S. Army Engineer Research and Development Center, uses a power washer to clean off a unique prototype military vehicle designed with “tri-star” wheels. Winschel is on a missi... More

Research to Reality: Airfield Damage Repair

Research to Reality: Airfield Damage Repair

Haley Bell (right) of the U.S. Army Engineer R&D Center's Geotechnical and Structures Laboratory, talks with Maj. Kelly Mattie of the USAF Civil Engineering Center (left), Jeb Tingle and Web Floyd of ERDC, duri... More

The Engineers at Vicksburg, Part One: The Spinal Column of America

The Engineers at Vicksburg, Part One: The Spinal Column of America

President Abraham Lincoln: At the outbreak of hostilities between the states, President Abraham Lincoln declared Vicksburg “the key,” and said “the war can never be brought to a close until that key is in our p... More

The Engineers at Vicksburg, Part Three: Cannons over Vicksburg

The Engineers at Vicksburg, Part Three: Cannons over Vicksburg

Confederate Captain David Harris: Captain David Harris of the Confederate engineers oversaw placement and construction of the river batteries at Vicksburg. (Library of Congress)

The Engineers at Vicksburg, Part 07: Grant Advances South - Maj. Gen. Earl Van Dorn

The Engineers at Vicksburg, Part 07: Grant Advances South - Maj. Gen. ...

Confederate Maj. Gen. Earl Van Dorn: The Port Gibson native led a daring raid in December 1862, which destroyed Grant’s advance base of supplies at Holly Springs and compelled the Federals to fall back to Memph... More

Augmented Reality Sandbox

Augmented Reality Sandbox

Students taking part in the SAME Camp try out the new augmented reality sandbox at ERDC's Coastal and Hydraulics Laboratory in Vicksburg June 16.

Aaron Byrd, civil research engineer in ERDC’s Coastal

Aaron Byrd, civil research engineer in ERDC’s Coastal

Aaron Byrd, civil research engineer in ERDC’s Coastal Hydraulics Laboratory, works on inundation maps for the Houston area during Hurricane Harvey August 29. (Photo courtesy of Marisol Byrd)

Thayer’s Approach to Confederate fortifications on

Thayer’s Approach to Confederate fortifications on

Thayer’s Approach to Confederate fortifications on Fort Hill Ridge is visible from the tunnel sappers dug through a ridge on approach. The National Park Service at Vicksburg National Military Park has preserved... More

The Coastal and Hydraulics Laboratory team modeling

The Coastal and Hydraulics Laboratory team modeling

The Coastal and Hydraulics Laboratory team modeling inundation from Hurricane Harvey talk about some of the the capabilities of the ERDC-developed GSSHA modeling engine in forecasting flood depths from storm su... More