Fort Riley ? A Kansas City construction company will help build a $334 million hospital at Fort Riley.

The new facility at the central Kansas military base will replace the 50-year-old Irwin Army Community Hospital.

The U.S. Army Corps of Engineers announced Tuesday that Walton Construction will partner with Dallas-based Balfour Beatty Construction.

The project includes a 263,000-square-foot hospital, a 289,000-square-foot clinic, a central energy plant, an ambulance garage and support facilities.

Construction is scheduled to begin this fall and be completed by spring 2012.

Walton president Dennis Thompson says between $750 million and $1 billion in construction work has been completed at the base in recent years.

Walton’s largest project there so far was a $135 million barracks complex.