Browse Items (217 total)

Several large rocks and pieces of construction equipment stand on top of the Bear Trap Dam construction site.

Construction materials fill the Bear Trap Dam construction site at the base of the Chicago Sanitary and Ship Canal.

Several cranes stand on top of the Bear Trap Dam during construction.

Construction workers labor on top of a portion of the Bear Trap Dam located at the base of the Chicago Sanitary and Ship Canal at Lockport.

Workers and engineers examine the progress of the construction of the Bear Trap Dam at the base of the Chicago Sanitary and Ship Canal.

Construction workers lay bricks around segments of the Bear Trap Dam.

A view taken from the top of the construction at the Bear Trap Dam shows a portion of the dam with a large wheel on top.

An aerial view shows the construction taking place on the Bear Trap Dam at the base of the Chicago Sanitary and Ship Canal.

Men stand on top of the Bear Trap Dam nearly nine months after water was released from Lake Michigan into the Chicago Sanitary and Ship Canal.

Workers construct an additional structure atop the Bear Trap Dam more than ten months after water was released from Lake Michigan into the Chicago Sanitary and Ship Canal.

A landscape view shows the length of the Bear Trap Dam during the winter.

A side view shows the incomplete floodgates of the Bear Trap Dam during construction.

Construction workers labor on the Bear Trap Dam spillway.

Cranes lift construction materials next to the Bear Creek Dam spillway construction site.

A large cantilever conveyor crane, drops 1.75 tons of rock excavated during the construction of the Chicago Sanitary and Ship Canal onto a pile.

A large cantilever conveyor crane stands on top of a wall while moving earth excavated during the construction of the Chicago Sanitary and Ship Canal.

Workers stand on and next to Bear Trap Dam during construction.

An aerial view taken from atop a cantilever conveyor crane during the construction of the Chicago Sanitary and Ship Canal shows the construction site and surrounding land.

A container moves on a wire between two derricks. An inset photograph shows the container dumping excavated material while suspended mid-air.

Containers moving on wires between derricks travel over workers laboring in a debris field during construction of the Chicago Sanitary and Ship Canal.

Several workers load debris containers while a steam shovel digs nearby.

Construction workers attach cables and load containers full of excavated earth during the construction of the Chicago Sanitary and Ship Canal.

Construction workers labor among several large pieces of equipment on the bed of the Chicago Sanitary and Ship Canal.

Several men stand around and on top of a large piece of digging equipment during the construction of the Chicago Sanitary and Ship Canal.

A large piece of construction equipment excavates earth and rock during the construction of the Chicago Sanitation and Ship Canal.