Public meeting scheduled in Denver for update on Cherry Creek Dam Safety Modification Study and associated spillway activities

From: Rief, Amee L CIV USARMY CENWO (US) <>
Sent: Mon, Dec 3, 2018 2:08 pm
Subject: Public meeting scheduled in Denver for update on Cherry Creek Dam Safety Modification Study and associated spillway activities

Cherry Creek Dam.
Helen H. Richardson/The Denver Post

OMAHA, Neb. – The U.S. Army Corps of Engineers (USACE) Omaha District will hold a public meeting on Wednesday, December 12, 2018 to provide an update on the Cherry Creek Dam Safety Modification Study and seek public input on necessary maintenance activities within the spillway that were identified as part of the dam safety study. The meeting will be held at the Lake House at Cherry Creek, 4800 South Dayton Street, Greenwood Village, Colorado. The location for the public meeting is inside the State Park but there will be no park entrance fees for attendees of the meeting.
The meeting will run from 6-8 p.m. with a brief presentation at 6:30 p.m. followed by an open house. “During the open house, the public will have an opportunity to talk with Corps team members about the results of the dam safety study that has been ongoing since 2015,” said Steve Butler, Chief of the Omaha District’s Dam Safety Production Center. “In addition, we would like to gather the public’s feedback on proposed spillway maintenance activities that were deemed necessary during the dam safety study process.”
In 2015, the Omaha District initiated a dam safety modification study in response to Cherry Creek Dam receiving an elevated risk rating through the USACE risk characterization process primarily because of the dam’s large downstream population and the potential for overtopping issues during an extremely rare precipitation event. A series of public scoping meetings were held in cooperation with the Denver Office of Emergency Management Homeland Security to begin development of an Environmental Impact Statement (EIS). After incorporating public comments and conducting detailed economic and risk analysis, the draft EIS, which recommends No Action, is now available for public comment.
Although the recommended plan is No Action, the dam safety study did identify maintenance issues with the Cherry Creek Dam spillway. Over time, sloughing of soil along the sides of the spillway has increased the spillway’s crest elevation approximately 12.5 feet and reduced its capacity to carry water. Because this has been identified as a maintenance issue, the Omaha District is pursuing a spillway cleanout project using operation and maintenance funding. The spillway project is outlined in the draft Environmental Assessment, also available for public review.
Both the draft EIS and EA can be downloaded from Comments can be emailed to or mailed to: U.S. Army Corps of Engineers, Omaha District, CENWO-PMA-C, ATTN: Cherry Creek DSMS/EA, 1616 Capitol Avenue, Omaha, NE 68102-4901. Comments must be postmarked or received by January 12, 2019.
Amee Rief
Office: 402-995-2544
U.S. Army Corps of Engineers-Omaha District
Biologist/Environmental Resource Specialist
1616 Capitol Avenue, Suite 9000
Omaha Nebraska, 68102


Upcoming Cherry Creek Dam Public Meetings

From: Salak, Jennifer NWO <>
Date: Mon, Aug 29, 2016 at 11:28 AM
Subject: Upcoming Cherry Creek Dam Public Meetings (September 20-22, 2016)

Good afternoon,

The U.S. Army Corps of Engineers, Omaha District, is hosting a series of public meetings to provide information on the current progress of the Cherry Creek Dam Safety Modification Study, including potential changes to the Water Control Plan, and to gather public input on the current suite of alternatives. Cherry Creek Dam, located in the Denver Metropolitan Area, has a hydrologic deficiency that could result in overtopping and failure during an extreme storm event. While the probability of such an event is low, the consequences would be high and as such requires these analyses.

The purpose of the Dam Safety Modification Study is to assess structural, operational and nonstructural long-term solutions to reduce the risk of overtopping at Cherry Creek Dam. The Water Control Plan Modification Study is evaluating the impacts of releasing more water from Cherry Creek Dam during extreme flooding events. Modifying the current Water Control Plan would be a near-term solution to partially reduce the risk of overtopping at the dam.

Meetings will be held on the following dates:

. Tuesday, September 20, 2016 from 6:00 – 8:00 p.m.
Cherry Creek Presbyterian Church
Rooms 112/113 (Main Building)
10150 E. Belleview Avenue
Englewood, CO 80111

. Wednesday, September 21, 2016 from 5:30 – 7:30 p.m.
Virginia Village Library
1500 S. Dahlia Street
Denver, CO 80222

. Thursday, September 22, 2016 from 5:30 – 7:30 p.m.
Aurora Municipal Center
City Café
15151 E. Alameda Parkway
Aurora, CO 80012

There will be a formal presentation at each public meeting followed by an open house. For more information about the Dam Safety Modification and Water Control Plan Modification Studies, visit

Please feel free to pass this information along to anyone who might be interested in attending. For questions about the public meetings, please contact our Public Affairs Office at (402) 995-2417.

Jennifer Salak
Outreach Specialist
Planning Branch
U.S. Army Corps of Engineers, Omaha District
1616 Capitol Avenue
Omaha, NE 68102

Urban Flood Control District Report regarding danger of Cherry Creek

Regarding danger of Cherry Creek flooding and/or dam failing

Dear Friends of Denver Parks,

Attached is the 2016 report of Paul Hindman, Executive Director of Denver Urban Drainage and Flood Control District, regarding the possibility of Cherry Creek Flooding and/or the dam failing in the event of a severe thunderstorm.



John Case


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