Home / Missions / Civil Works / Water Control Manuals

 

 

WHAT IS A WATER CONTROL MANUAL?

Water Control Manuals, or WCMs, are operating manuals for U.S. Army Corps of Engineers, or USACE, dams. USACE makes day to day decisions about releasing water through its dams according to Water Control Plans, or WCPs, that are included in dam specific-WCMs. The objective of all WCMs include operating the dam and reservoir for the purposes authorized by Congress and other applicable law, maintain the structural integrity and operation integrity of the dam (sometimes called a “project” to include reservoir operations) and avoid risk to public health and safety, life and property.

The WCMs are being updated because Congress provided direction and funding in Fiscal Year 2022 for USACE districts across the nation to update WCMs to evaluate and potentially update WCPs as necessary, include a drought contingency plan for managing water releases from dams when there is a drought and meet new requirements for formatting and updating information. Each WCM and its WCP was developed when each project was authorized. They are updated periodically to determine whether there are changes in the physical, environmental and social conditions that need to be accounted for in a dam’s operation.  

 

Clinton Lake can be seen with rock in the foreground, the dam in the middle of the photo, and a sunset in the background. Clinton Lake WCM Update
Clinton Lake WCM Update
See More
Water can be seen on the right with rocks and grass on the left and blue sky in the background. Hillsdale Lake WCM Update
Hillsdale Lake WCM Update
See More
One of an endless number of scenic views offered at Melvern Lake. Melvern Lake WCM Update
Melvern Lake WCM Update
See More
The dam at Milford Lake can be seen jutting into the water with grass in the foreground, trees to the left and right, and sky in the background. Milford Lake WCM Update
Milford Lake WCM Update
See More
Perry Lake can be seen with the dam stretching into the water, rocks in the foreground and a cloudy sky in the background. Perry Lake WCM Update
Perry Lake WCM Update
See More
Overhead view of the Pomme de Terre Dam. Pomme de Terre Lake is located in the rugged, tree covered hills of the west central Missouri Ozarks on the Pomme de Terre River. The Pomme de Terre Project was authorized by Congress in 1938 as part of a comprehensive flood control plan for the Missouri River Basin. Project Planning was initiated in 1947 and actual construction began in 1957. The lake was completed in 1961 at a cost of $14,946,784. Pomme de Terre WCM Update
Pomme de Terre WCM Update
See More
Pomona Lake Dam Pomona Lake WCM Update
Pomona Lake WCM Update
See More
A concrete dam stretches into a lake with grass to the left, water to the right, and trees and sky in the background. Tuttle Creek Lake WCM Update
Tuttle Creek Lake WCM Update
See More

 

 

SUBMIT A COMMENT

Have a question or comment* about the Kansas City District's Water Control Manual updates? Submit it below:

*Comments about individual reservoirs or the system as a whole can be submitted until November 30, 2023. Comments, questions and information submitted in writing by November 30, 2023, will be summarized in the draft environmental assessment.

 

Comment Form - Please include contact information if you request a response.

*

 

 

FREQUENTLY ASKED QUESTIONS

 

  • Water Control Manuals, or WCMs, are operating manuals for U.S. Army Corps of Engineers, or USACE, dams.
  • USACE makes day to day decisions about releasing water through its dams according to Water Control Plans, or WCPs, that are included in dam specific-WCMs.
  • All WCMs have the following objectives, in addition to the WCP guidelines:
  1. Operate the dam and reservoir for the purposes authorized by Congress and other applicable law;
  2. Maintain the structural integrity and operation integrity of the dam (sometimes called a “project” to include reservoir operations); and
  3. Avoid risk to public health and safety, life and property.
  • Congress provided direction and funding in Fiscal Year 2022 for USACE districts across the nation to update WCMs to:
  1. Evaluate and potentially update WCP’s as necessary.
  2. Assess existing drought contingency plan for managing water releases from dams when there is a drought.
  3. Meet new requirements for formatting and updating information.
  • Each WCM and its WCP was developed when each project was authorized. They are updated periodically to determine whether there are changes in the physical, environmental and social conditions that need to be accounted for in a dam’s operation.  
  • The Kansas City District is now working on twelve projects.
  • The Pomme de Terre WCM, the Harry S Truman WCM and four projects in the Lower Kansas River Basin - Clinton, Perry, Milford and Tuttle Creek Lakes – are currently underway.
  • In fall 2023, the team will begin work on Hillsdale, Melvern and Pomona Lakes, and will begin Kanopolis, Wilson and Harlan County Lakes at the start of 2024.
  • All twelve updates will be completed between 2026 and 2028.
  • The Kansas City District will:
    • Investigate whether any changes to environmental, physical and social conditions justify adjustments to the way USACE operates a dam and lake.  
    • Evaluate how the lakes work as a system so that USACE can decide how to control releases. By controlling releases, USACE can manage risks from floods and droughts downstream from the dams and support a lake’s authorized purposes.
    • Explore ways to recognize and respond to drought conditions in order to benefit project authorized purposes.
    • Identify disadvantaged communities and integrate them into planning for water resources in the Kansas River Basin.
  • The Kansas City District will not:
    • Change any releases regarding navigation.
    • Add or remove federally authorized purposes for a lake.
    • Increase or decrease existing lake project storage allocations.
    • Change the total volume of flood risk management reservoir discharges passing from the reservoirs to the river below.
    • Address specific issues such as lake sedimentation, recreation planning and fish stocking.
  • USACE will conduct “scoping” under the National Environmental Policy Act (NEPA)*.  Scoping happens at the beginning of an environmental review. It helps identify the issues the environmental review should consider in detail.
  • USACE technical staff in the Kansas City District will collect engineering, environmental and demographic data to assess current conditions at each reservoir.
  • During scoping:
    • USACE will share the steps of the update process with the public, Tribes, local governments, states and other federal agencies.
    • USACE will describe what it has learned through assessment of current conditions at each dam and reservoir and summarize the steps forward. 
    • USACE will elicit public input at public meetings and through written comments.
    • USACE will use this input, along with information about any new physical, environmental, economic and social conditions, to develop a set of alternatives for lake operations.
  • Once the alternatives for reservoir operations are developed:
    • USACE will evaluate the potential impacts of the proposed updates in a draft environmental review under NEPA. 
    • The public will have the opportunity to review that draft and provide comments.
    • USACE will evaluate and incorporate responses to the public comments in the final environmental review along with the final decision about updates to the WCM and the WCP. 

 

NEPA PROCESS

The National Environmental Policy Act (NEPA) is a law that requires all federal agencies to take a 'hard look' at how their actions may affect the human and natural environment. It spells out the steps an agency must take to identify environmental issues that need to be considered, identify options or alternatives that would correct the problems identified and explain its final decision while complying with environmental regulations. NEPA also gives the public a voice in the decision-making process about the proposed actions. The public is asked to provide input through public meetings and opportunities to provide written comments. The first opportunity happens during the scoping phase. Additional opportunities occur when the environmental review is complete and alternatives for action identified. These comments will be considered before the federal agency makes a final decision. 

 

PUBLIC MEETING SLIDESHOWS

Did you miss a public meeting? No problem! Click the presentation below to review the slideshow from previous public meetings.