Monarch Engineering Co.
| Company type | Private |
|---|---|
| Industry | Engineering, Construction |
| Founded | 1908 in Falls City, United States |
| Founders | John A. Crook, Guy A. Crook |
| Headquarters | Denver , United States |
Area served | United States (including Denver, Kansas City) |
Key people | John A. Crook, Guy A. Crook |
| Products | Bridge construction, urban paving, irrigation dam development, public infrastructure projects |
Monarch Engineering Co. was a U.S.-based firm specializing in engineering and construction, headquartered in Denver, Colorado. Established by siblings John A. Crook and Guy A. Crook in Falls City, the company expanded its presence with additional offices in Kansas City and Denver. Under their guidance, Monarch emerged as a prominent entity in the domains of bridge construction, urban paving, irrigation dam development, and public infrastructure projects. To accommodate its expanding activities by 1917, the company acquired Denver Steel and Iron Works, enhancing its control over material procurement.
John A. Crook (born April 9, 1879) received his education locally and furthered his engineering knowledge through correspondence courses. His early career included roles at the Canton Bridge Company and John Gilligan Bridge Company before founding Monarch Engineering in 1908; his brother joined the venture two years later in 1910. In 1916, Crook moved to Denver to supervise operations at Denver Steel and Iron Works and to manage projects across the western region.
A number of Monarch Engineering’s projects have been recognized on the U.S. National Register of Historic Places, reflecting their engineering importance and historical value.
Key projects include:
- Cargill Pool Elevator, Buffalo, New York
- Cargill Superior elevator (also referred to as Superior elevator or Cargill "S"), Buffalo, New York
- Concrete-Central Elevator, Buffalo River, Buffalo, New York
- EAU Arvada Bridge, Arvada, Wyoming
- EFP Bridge over Owl Creek, Thermopolis, Wyoming
- EJP County Line Bridge, Hyattville, Wyoming
- Little Hell Canyon Bridge, Drake, Arizona
- Prairie Dog Creek Bridge, Orleans, Nebraska
- Rairden Bridge, Manderson, Wyoming
- Rio Grande Bridge at San Juan Pueblo, Alcalde, New Mexico
- Sanders Bridge, Sanders, Arizona
- Wheeler Elevator, Buffalo, New York