At the site of the tallest dam built in the U.S. in 20 years, Northern Colorado crews are looking to treat uranium

After decades of planning and years of construction, Northern Colorado's Chimney Hollow Dam is nearly complete. Construction crews topped off the 350-foot-tall dam recently and are preparing to pave a roadway across the top that will not be utilized by the public.

CBS

The dam, which is located west of Loveland , is more than 1,000 feet wide and includes a thin layer of asphalt to help prevent water from seeping through the rocks used to build it.

Chimney Hollow Reservoir, and the dam, have been in the works for decades now as Northern Water looked to secure more drinking water for Northern Colorado's projected population growth. The region has already grown exponentially and is expected to double in population in the next 20 years.

"The need for water is great," said Jeff Drager, d