Unit 2 of the Lower Klamath National Wildlife Refuge holding water delivered through KDD’s Ady Canal, May 2024

Klamath Drainage District

Lower Klamath Lake Reconnection

Reconnecting the Klamath River to the Lower Klamath National Wildlife Refuge through KDD’s canals, for people, fish and wildlife.

Status: 30% design complete (August 2026). Phase 2 funding is now being secured.

Where things stand · Updated October 2026

The 30% design is done. Phase 2 is next.

Complete

Phase 1: 30% design

Funded by the U.S. Fish and Wildlife Service through the Inflation Reduction Act. Began October 2024; completed August 2026. Included LiDAR and sonar surveys.

$2.8Mfully funded

Next · Funding underway

Phase 2: 60% design

About $900K in hand from a USFWS fund held by KDD. Phase 2 will also set the cost of final design and construction.

$0.9M securedof $3M needed

Later

Final design & construction

Canal improvements, the North Canal extension into the refuge, fish passage and landowner protections. Cost to be set in Phase 2.

Related project: Ady Canal Fish Screens. Four screens on the Ady Canal turnouts. $5M total, $1.2M secured (Oregon Lottery Bond funds via ODFW). Construction expected to begin summer 2027.

Why it matters

A refuge built for waterfowl went completely dry

The nation’s first waterfowl refuge

Lower Klamath National Wildlife Refuge was established in 1908 to protect migratory waterfowl. In 2021, after years of drought and competing demands for water, it went completely dry.

Salmon are coming back

With four Klamath River dams removed, Chinook salmon were seen in the Ady Canal in October 2025. The project plans for fish passage and screening so fish and farms are both protected.

Farms and wildlife, together

KDD has already sent water to the refuge, including about 2,500 acre-feet to Unit 2 in 2024. Reconnecting the lake makes that support lasting, while protecting the district’s landowners.

The Ady Canal delivering water to Unit 2 of the Lower Klamath National Wildlife Refuge
The Ady Canal at Unit 2, May 2024

1908

Refuge established

~4,000

Acres reconnected at Unit 2 / Sheepy Lake

+6,000

More acres with potential to flood

How it works

Using KDD’s Ady Canal to reconnect the lake to the river

A railroad embankment built in 1907 cut Lower Klamath Lake off from the Klamath River. The project uses KDD’s Ady Canal to carry river water, and fish, back to Unit 2 and Sheepy Lake on the refuge.

Klamath River Klamath Drainage District farmland (Oregon) Ady Canal diversion Ady Canal Stateline Hwy (OR 161) OREGON CALIFORNIA Unit 2 / Sheepy Lake Lower Klamath National Wildlife Refuge N
Simplified schematic, not to scale.

1. Reconnect river and refuge

Improve the canals so river water can reach Unit 2, reconnecting about 4,000 acres, with potential for 6,000 more.

2. Extend the North Canal

Carry the North Canal across the Stateline Highway into the refuge’s canal system to deliver water to wetlands and cooperative grain lots.

3. Give fish a way back

Restore fish access to refuge wetlands for the first time since the railroad, with screens at turnouts to keep fish out of fields.

4. Protect landowners

Seek a Habitat Conservation Plan or Biological Opinion covering KDD landowners, and offer a voluntary incentive program for rotational wetlands.

Timeline

How we got here

  • 1907–08Railroad dike cuts the lake off from the river; Lower Klamath National Wildlife Refuge established
  • July 22, 2021Cracked mud on a dry Unit 2. KDD takes the question of reconnecting the lake to refuge management
  • Dec 2021 – Aug 2022KDD sends about 3,100 acre-feet to the refuge
  • July 10, 2023Interior’s Opportunities Tour visits KDD
  • Aug 30, 2023KDD announces “Replumbing the Klamath” with partners
  • Jan 9, 2024KDD–Yurok Tribe MOU: a commitment to work together to develop common interest projects
  • Mar 7, 2024Lower Klamath Renaissance Tour
  • May 2024About 2,500 acre-feet of recycled water reaches Unit 2 through the Ady Canal
  • Oct 1, 2024Phase 1 (30% design) begins with $2.8M from USFWS
  • Fall 2024LiDAR and sonar surveys complete; landowner meeting in Dorris, CA (Nov 4)
  • Oct 2025Chinook salmon seen in the Ady Canal
  • Aug 202630% design complete
  • NextPhase 2: 60% design ($3M needed, about $900K in hand)

For KDD landowners

Common questions

Protecting the district’s farms is a core goal of the project. For anything not answered here, contact KDD directly.

Will more water in the canals flood my land?

Keeping KDD private land safe is a design requirement. Phase 1 studied what could cause flooding and how to prevent it, including canal bank improvements, interior levees, and incentive or easement options.

What if endangered fish end up in the canals?

The project seeks a Habitat Conservation Plan or Biological Opinion so landowners are covered for incidental take of listed species. Fish screens on the Ady Canal turnouts are planned to keep fish in the canal and out of fields.

Do I have to participate?

No. The rotational wetland incentive program is voluntary. Landowners who join would also get priority access to refuge cooperative lands.

How can I stay informed or share concerns?

KDD holds landowner meetings as design moves forward. Contact Scott White, KDD General Manager, through the KDD office.

Resources

Reports, news and background

Report

30% Design Report

Link to be added.

Working Group

Lower Klamath Lake Working Group

Klamath Watershed Partnership

News · Oct 2025

KDD prepares for salmon

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News · May 2024

KDD sends water to Unit 2

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