To combat these issues, Rend Lake USACE continues to promote habitat restoration through the annual Christmas Tree Drop event leveraging over $60K and supplementing multiple locations each year with the donation of 600 plus trees. We also continue to use funds when possible to purchase materials to construct artificial structures that long outlast the woody vegetation. Through partnerships with local eagle scouts, the IDNR, and a local high school Outdoorsmen Club, 30 “modified Georgia Cubes” and over 1,100 porcupine and spider block structures were built and placed in Rend Lake over the last 3 years. Another 32 cubes have been built and are ready for placement soon. These projects leveraged over $25K and has greatly improved the Rend Lake fisheries. The following is the link to take you to our recent fish habitat improvement project results: https://indd.adobe.com/view/d9114370-0607-4cc0-8433-f02f754826df Also, the USACE invests an average of $250K each year to repair shoreline erosion; an estimated $10M in whole to protect the lake and its features.

Methods

Rend Lake USACE will be using federal funding and help from multiple partners to protect shoreline, create habitat, fight invasive species, and promote healthy fish populations. In previous years, shoreline protection involved placing large rock directly onto the eroding slope. After learning how other locations are creating rock dikes along the base of their shoreline, above the normal wave action line, to allow for natural sloughing and to create natural habitat, we decided this was the best solution for our shoreline with the most extreme slopes. One of the worst areas, with the most to protect, is over 1300 feet of shoreline along the South Sandusky campground within the Sandusky cove. This area is used by campers, boaters, and anglers all year long. Without the addition of rock, several campsites and part of the roadway will soon disappear into the lake taking away from outdoor experiences and tourism dollars. Using federal funds, over 4000 lbs of 400 lbs rip rap will be added to the base of the shoreline in the fall of 2023. In 2024, in partnership with Angler’s Choice, 60 container Bald Cypress trees will be planted behind the rock along the shoreline to provide additional shoreline stabilization and habitat for aquatic life. A local eagle scout and volunteers will assist USACE and the IDNR in planting appropriate aquatic and wetland native species plugs along 30,000ft2 section of shoreline.

A second phase of the project will address common reed. This invasive species continues to present a significant management challenge at Rend Lake. It is continuing to expand and invade shallow water areas including the Jackie Branch Cove. The Jackie Branch Cove is full of anglers all times of the year, but one long dry season and the common reed could take the majority of the Cove over, depleting oxygen levels and becoming too thick for boat and even fish use. In partnership with the River to River Cooperative Weed Management Area (RCWMA)organization, donated maps from a free flyover were provided, showing all of the phragmites locations. The RCWMA also provided us with the correct prescription to kill this invading weed and helped us find an aerial contractor who could perform the spraying. The last two years, USACE and RCWMA has successfully sprayed over 270 acres of common reed, bringing their population down to less than 10% in the applied areas. A “touch up” chemical application will be done in the late summer of 2022 and 2023 followed by prescribed fire. This will leave over 5 acres at Jackie Branch cove bare and open to potential new spread of common reed. To combat this, 240 bald cypress trees along with native aquatic plant plugs will be planted in these areas. This will be accomplished through partnership with Angler’s Choice, IDNR, local eagle scouts, and the local high school Outdoorsmen Club.

Monitoring Plan

Success of the project will be gauged primarily by the bank stabilization, reduction of common reed, and native plant expansion outside of the planting area, and secondarily by fish response to the restoration areas. IDNR fisheries biologist will continue to conduct annual fall standardized fish population surveys and fall annual stocking success surveys to evaluate changes in the fish populations. The surveys provide data such as density, size, and body condition. Species evaluated would include largemouth bass, crappie, bluegill, catfish, striped bass hybrids, and white bass. Please see the 2022 Fisheries Fact Sheet attached. The IDNR and USACE have also surveyed the artificial structures placed recently, finding that they are heavily used. The IDNR will continue to perform their surveys and take note of newly restored areas for comparison from the past and into the future.

The Rend Lake USACE will place physical stakes and take GPS points to mark the outside boundaries of the planted native species plugs. USACE will also take a preliminary slope with follow up measurements annually. The survivability of the cypress trees will also be measured and note taken of which locations, and their characteristics, they performed the best in.

Improvements to angling quality will be monitored through personal contacts. The USACE has a great working relationship with several anglers that fish Rend Lake almost daily. They provide us with input for our weekly fishing report, give us advice on where best to place artificial structures, and assist us with setting woody vegetation and artificial habitat.
Use of the camping loop that will benefit from the bank stabilization will also be monitored through reports from the reservation system. Currently the bank is too steep to fish from, but over time should sluff to a natural slope allowing for public use.

Outreach Plan

Signage listing the major contributors making the habitat restoration possible will be displayed at the Jackie Branch Boat Ramp and along the shoreline of the South Sandusky Campground. Contributors include: USACE, IDNR, Angler’s Choice, Multiple Eagle Scouts/Troops, Sesser-Valier Outdoorsmen Club, Friends of Reservoirs, and Reservoir Fish Habitat Partnership.

News Releases will be sent to all local news stations and radio stations explaining the projects, partner contributions, and grant funding provided.
Articles explaining the above will also be written and published in the monthly “Rend Lake Adventures” and the annual “Rend Lake Visitor Guide”. These are distributed through the campgrounds, local communities, and through the Rend Lake Area Tourism Council’s managed Facebook page and websites, rendlake.com and enjoyrend.com.
The USACE also has a Facebook page (12,000+ targeted followers) and the Rend Lake Project website. These posts are continuously shared by the local fishing guides and fishing clubs.

We will continue to discuss our habitat projects with stakeholders during annual communication meetings and during public events, such as the annual tree drop.