$14 million Antero Dam rehab project set to begin next week

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.
Built in 1909 by Canfield and Shields of Greeley and purchased by Denver Water in 1924, the dam has experienced substantial seepage since it was built. (Credit: Denver Water)

Built in 1909 by Canfield and Shields of Greeley and purchased by Denver Water in 1924, the dam has experienced substantial seepage since it was built. (Credit: Denver Water)

Built in 1909 by Canfield and Shields of Greeley and purchased by Denver Water in 1924, the dam has experienced substantial seepage since it was built. (Credit: Denver Water)

Built in 1909 by Canfield and Shields of Greeley and purchased by Denver Water in 1924, the dam has experienced substantial seepage since it was built. (Credit: Denver Water)

DENVER — A $14 million project to shore up Antero Dam, northeast of Buena Vista, is set to begin Aug. 19, Denver Water announced.

The rehabilitation project, a coordinated effort between Denver Water, Colorado Parks and Wildlife and the Office of the State Engineer, will be done in phases. The first phase is scheduled for completion by late November. During this phase, workers will build a sand trench to filter the normal seepage from the dam to help ensure the safety of the foundation.

Denver Water will keep the popular reservoir open to recreation, and Colorado Parks and Wildlife will continue to manage the fishery during the project. The construction will take place on the east side of the dam, which will not be accessible to the public. There will be an increase in truck traffic along Highway 9 and Highway 24 at various times during phase one as sand is brought in to complete the filter trench. Trucks will enter the site through an access road on the south side of the dam.

Subsequent phases of the project are embankment grading from May 2014 through November 2014, and spillway and valve improvements May 2015 through November 2015.

Antero Reservoir’s water level was lowered by two feet in May of 2011 as a safety precaution to reduce water pressure and seepage within the dam, officials said in a statement. The reservoir has been operating at a height of 16–17 feet since then. When all three rehab phases are complete, the water levels at Antero will return to and be maintained at a level of 18 feet.

Built in 1909 by Canfield and Shields of Greeley and purchased by Denver Water in 1924, the dam has experienced substantial seepage since it was built and as a result, has been operating under reservoir storage restrictions for decades.

Wildlife questions regarding fishing at Antero can be directed to Colorado Parks and Wildlife at 303-291-7227.

AlertMe