Kelly Lake near Hibbing in Saint Louis County, Minnesota — The American Midwest (Upper Plains)
170 & 240 Ton Production Trucks
This truck is considered an 'electric' haulage unit in that each of the four wheel hubs houses an electric drive motor. Power to drive these wheel motors is provided by a 16 cylinder/1600 horsepower General Motors diesel engine. Top speed is 32 mph and the fuel tank has a capacity of 800 gallons.
The tires are mounted on wheels that are 4.25 feet in diameter and with a tire diameter of 10.5 feet it takes only 162 revolutions to cover the distance of a mile.
During its operating life the individual tires cost $7,500 each and a complete set of eight would be $60,000 total. Even though the tires are 50 ply and the tread depth greater than 3 inches, sharp taconite fragments can puncture them.
The radiator holds approximately 150 gallons of coolant and the box holds the equivalent of nearly half a million, one pound packages, of butter. Maximum gross vehicle weight was rated at 630,000 pounds.
Drivers of these true 'monster trucks' often compare driving them to "driving a two story house" while sitting in the operators seat 18 feet above the ground.
Topics. This historical marker is listed in this topic list: Roads & Vehicles. A significant historical year for this entry is 1998.
Location. 47° 26.842′ N, 92° 56.791′ W. Marker is near Hibbing, Minnesota, in Saint Louis County. It is in Kelly Lake. Marker can be reached from Greyhound Boulevard/3rd Avenue East, on the left when traveling north. Marker is at the Hull-Rust Mahoning Mine, beyond the mine visitor center/observation building; accessible only when the center is open. Touch for map. Marker is in this post office area: Hibbing MN 55746, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Mining Haul Truck Engine Module (a few steps from this marker); Underground Mining in the Hibbing Area (within shouting distance of this marker); P & H 2300 Production Shovel Bucket (within shouting distance of this marker); Hull-Rust-Mahoning Mine (within shouting distance of this marker); Hill of Three Waters or the Triple Divide (within shouting distance of this marker); Hull-Rust Mahoning Mine Pit Overlook (within shouting distance of this marker); Marion 1150 Dragline Bucket (within shouting distance of this marker); Haulpak Production Truck Tires (within shouting distance of this marker). Touch for a list and map of all markers in Hibbing.
Credits. This page was last revised on February 12, 2023. It was originally submitted on April 13, 2008, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 2,964 times since then and 37 times this year. Photos: 1, 2, 3. submitted on April 13, 2008, by Keith L of Wisconsin Rapids, Wisconsin. • J. J. Prats was the editor who published this page.