BLACKHAWK RAILWAY HISTORICAL SOCIETY
  • Home
  • About Us
    • Join or Renew
    • Meetings
    • Indiana Swap Meet
    • "Spike and Tie" Newsletter
    • 50th Anniversary Gallery
  • Schedule
  • Projects
    • Museums
    • Depots >
      • Symerton
      • Lockport
      • Joliet >
        • History
        • Passenger
        • Railfan
        • UD Tower
    • Community
    • Publications and Documents >
      • EJ&E Documents
    • Equipment
    • Chicago Railroad History Month
    • Historic Railroads of Will County >
      • Atchison, Topeka & Santa Fe
      • Chicago & Alton
      • Chicago & Eastern Illinois
      • Chicago, Rock Island & Pacific
      • Elgin, Joliet & Eastern
      • Illinois Central
      • Michigan Central
      • The Milwaukee Road (CM&G/CTH&SE)
      • Wabash
      • Shortlines and Industrials
      • Proposed Railroads
      • Interurban Railroads
  • Connections
    • Partners
    • Local Railroad Attractions
    • Local Museums and Tourist Railroads
    • Steam Locomotives (Operating or Being Restored)
    • Today's Railroads
    • Midwest "Santa Trains"
  • Store

Historic Railroads of Will County

Shortlines and Industrial Railroads

Joliet Army Ammunition Plant

The Joliet Army Ammunition Plant (JOAAP) was originally known as the Elwood Ordnance Plant (EOP) and the Kankakee Ordnance Works (KOW) when they were authorized by the federal government in 1940.   The federal government purchased 36,645 acres from local farmers at a cost of $8,175,815.  Construction costs totaled over $81 million.   Seventy-seven such plants were built during World War II to  produce ammunition and explosives for the U.S. military.  
Picture
ALCO builder photo of model S1 switcher built for use at the Elwood Ordinance Plant.
At the time they were built, the Joliet plants were considered the largest, most sophisticated munitions plants in the world. Both the Elwood and Kankakee plants became a training base that supported the Allies' efforts.   At peak production during World War II, over 10,425 people were employed at the two plants.   The Elwood facility loaded over 926 million bombs, shells, mines, detonators, fuzes, and boosters, and the Kankakee facility set a national record, producing over one billion pounds of TNT.  The plant had its own massive in-plant railroad, and the Santa Fe, GM&O, Milwaukee Road, and Wabash all directly served the plant. ​​

The Elwood and Kankakee Plants were combined and re-designated the Joliet Arsenal in 1945, when operations were placed on standby.  The Arsenal was reactivated in 1952-1957 during the Korean War and again during the Vietnam War.   TNT production ceased in 1976, and by the late 1970s, most operations had come to a halt.  The total size of the Joliet Army Ammunition Plant at the time it was declared inactive in 1993 was 23,543 acres, which now has been subdivided into the Joliet Army Training Area, the CenterPoint Intermodal Center (with large intermodal facilities for BNSF and UP), the Abraham Lincoln National Cemetery, and the Midewin National Tallgrass Prairie.
​
(Joliet Army Ammunition Plant history from the U.S. Forest Service)

Picture
Picture
​Joliet Junction's entire roster, an SW1000 leased from RELCO,
and ex-EJ&E caboose, now at Hoosier Valley RR Museum in North Judson, Indiana.
​(photos Blackhawk Ry. Hist. Society collection)

Joliet Junction Railroad

In 1991, the Elgin, Joliet & Eastern (EJ&E) discontinued service and sought to abandon its 6.46-mile Rockdale Branch between Rockdale Junction in Crest Hill and Rockdale after a fire severely damaged a wooden trestle. 

In 1994, the 
Joliet Junction Railroad (JJR) was created to acquire the line. It would cost $90,000 to replace the bridge, plus significantly more for other expenses to bring the line up to code.  The JJR applied for and received a $390,000 loan from the Illinois Department of Transportation to fund improvements.  The JJR connected the remaining local shippers on the line with the EJ&E at Crest Hill and CSX (ex-Rock Island) at Rockdale.  

The Joliet Junction Railroad ceased operations in the summer of 1999 and sold the right-of-way for $467,424 to the Forest Preserve District of Will County, which created 
the Joliet Junction Trail on the former right-of-way.
< Wabash
Proposed Railroads >

​Contents © 2026 Blackhawk Railway Historical Society, Inc. - an Illinois not-for-profit corporation.   Photos and images on this site without credit belong to Blackhawk Railway Historical Society or the Public Domain.  Credited photos and images are the property of their owner.  The Blackhawk Railway Historical Society, Inc. is a chapter of the National Railway Historical Society.

Contact Us

  • Home
  • About Us
    • Join or Renew
    • Meetings
    • Indiana Swap Meet
    • "Spike and Tie" Newsletter
    • 50th Anniversary Gallery
  • Schedule
  • Projects
    • Museums
    • Depots >
      • Symerton
      • Lockport
      • Joliet >
        • History
        • Passenger
        • Railfan
        • UD Tower
    • Community
    • Publications and Documents >
      • EJ&E Documents
    • Equipment
    • Chicago Railroad History Month
    • Historic Railroads of Will County >
      • Atchison, Topeka & Santa Fe
      • Chicago & Alton
      • Chicago & Eastern Illinois
      • Chicago, Rock Island & Pacific
      • Elgin, Joliet & Eastern
      • Illinois Central
      • Michigan Central
      • The Milwaukee Road (CM&G/CTH&SE)
      • Wabash
      • Shortlines and Industrials
      • Proposed Railroads
      • Interurban Railroads
  • Connections
    • Partners
    • Local Railroad Attractions
    • Local Museums and Tourist Railroads
    • Steam Locomotives (Operating or Being Restored)
    • Today's Railroads
    • Midwest "Santa Trains"
  • Store