Environmental Technical Assistance Program Newsletter

An initiative to “Give BIRDS the ROW” in terms of creating big habitats in highway rights-of-way is expanding across Illinois – with new support from the Illinois Department of Transportation.

[Above photo by the Illinois DOT]

The program originated with the installation of birdhouses for “prothonotary warblers” along the Lost Bridge Trail near Illinois DOT’s headquarters in Springfield, IL. The program’s goal is to restore diverse bird species on rights-of-way or ROWs under the control of Illinois DOT. In its latest effort, a group of Illinois DOT employees recently helped install bluebird houses, provided by the McHenry County Audubon Society, at the Coalfield Rest Areas on I-55 near Litchfield in Montgomery County.

Posted in short-grass, open-yard habitats, these birdhouses not only provide a resting spot for bluebirds but also attract other native bird species.

“In total, four bluebird houses have been posted so far: two at the northbound Coalfield Rest Area and two at the southbound Coalfield Rest Area,” said Jarod Hitchings, who works as a photogrammetrist for the agency, in a statement. [Editor’s note: “Photogrammetry” is the use of photography in surveying and mapping to measure distances between objects.]

“The in­stallation of more houses are planned for prothonotary warblers along the Spoon River and for bluebird houses at rest areas and other appropriate short-grass, park-like habitats maintained by Illinois DOT,” he said.

Fellow Photogrammetrist Brenda Anderson joined Hitchings – who both work for the agency’s bureau of design and envi­ronment – to install those birdhouses. They received assistance from Illinois DOT District 6 Roadside Management Specialist Mike Staab and Junior Construction Inspection Technician Marcell Lare, Roadside Maintenance Manager Stephanie Dobbs, District 8 Acting Rest Area Manager Jacob Cuff, and District 5 Roadside Manager Scott Hall.

Illinois DOT Design and Environment’s Bicycle and Pedestrian/ADA Policy Engineer Steve Letsky also donated handcrafted birdhouses he built on his own for this effort.

“Operations and Design and Environ­ment have worked well together to pro­mote declining bird species,” Hitchings noted. “Partnering with the district offices, we have truly made this a statewide effort to promote a healthy environment for our feathered friends. Birds are a sentinel species and are a signal that the natural landscape is healthy for all wildlife.”

“We hope to grow this program and install a variety of houses at different locations as the habitat and range indicate,” Dobbs added. “In the future, if interesting species find homes on our right of way, we would like to do a webcam or something similar to share it with employees and the public.”

State departments of transportation across the country are involved in a number of efforts to protect and preserve bird species where possible.

For example, a mitigation program operated by the North Carolina Department of Transportation’s Division of Aviation aims to reduce the risk of wildlife hazards by providing a variety of training and support options for both airports and aircraft.

“Flocks of birds taking flight, deer crossing runways, and other such hazards can cause serious damage to property and even loss of life,” noted Rajendra Kondapalli, the program’s manager, in a statement. “Our program focuses on reducing that risk and increasing safety for aircraft that fly in and out of airports across our state.”

Meanwhile, the Minnesota Department of Transportation recently helped test ultrasonic bat “deterrence devices” at two bridges to help keep the mammals away from such structures when they undergo maintenance and/or repair activity.

The agency noted that bats like to roost in bridge expansion joints and temporarily preventing such roosting during bridge maintenance repair activity typically requires installing physical barriers that are often difficult to establish effectively, due to the design characteristics of many structures.

More importantly, the Minnesota DOT does not necessarily want to keep bats away permanently from its bridge as they provide safe roosting areas. Thus, the agency worked with the Minnesota Department of Natural Resources and the U.S. Fish and Wildlife Service for the last two years testing battery-operated ultrasonic deterrence devices that reduce bat activity at bridge sites when activated but ensure a quick return of bat roosting activity when deactivated.

The Wyoming Department of Transportation recently received a 2022 Environmental Excellence Award in the category of Ecosystems, Habitat, and Wildlife from the Federal Highway Administration for its role in the Snake River Bridge reconstruction and wildlife crossing integration project. The award is one of 14 conferred by FHWA nationwide in various environmental categories. 

[Above photo by the Wyoming DOT]

Wyoming DOT – along with the Wyoming Game and Fish agency, Teton County, and other community organizations – designed a project for the replacement of a critical bridge on Wyoming Highway 22 over the Snake River, near Jackson, and expanded it to accommodate local and migrating wildlife within the Greater Yellowstone National Park ecosystem.

FHWA cited Wyoming DOT’s exemplary “achievement and extensive stakeholder collaboration, community engagement, and environmental considerations” in granting the award.

The wildlife underpasses and three additional wildlife crossings built by this project should provide for “safer movements”, especially for large animals such as moose, elk, and deer. 

The agency is also implementing additional improvements that will enhance recreation and natural resource education in the nearby Rendezvous Park with work that will include increasing wetlands along ponds, constructing a boardwalk, and making a swimming hole deeper. 

Construction on this project should begin in the spring of 2023, Wyoming DOT noted.

This follows a joint effort by Wyoming DOT and the Wyoming Game and Fish agency launched in 2019 that committed a combined $2.5 million toward installing wildlife crossings along US 189 in southwest Wyoming – known as the “Dry Piney” project – to help reduce wildlife-vehicle collisions.

The purpose of the improvements is to support positive public interaction with the natural environment while addressing the needs of the ecosystem, noted Wyoming DOT Director Luke Reiner in a statement.

“We appreciate the recognition and affirmation from the FHWA that this is a special project that will benefit not just the transportation of motorists but of wildlife, too,” said WYDOT director Luke Reiner. “I am grateful to our partners who were instrumental in shaping this project into an award-winning success.”

State departments of transportation in many parts of the country are working to improve wildlife crossings across a variety of transportation projects.

For example, the Colorado Department of Transportation and the Colorado Parks and Wildlife agencies completed wildlife underpasses along a rural stretch of Interstate 25 between Colorado’s two largest cities, Denver and Colorado Springs, in October 2021.

That wildlife mitigation system is part of a $419 million transportation improvement project – known as the I-25 South Gap project – that aims to improve safety and travel on 18 miles of I-25 south of the Denver metropolitan region; a route that more than 87,000 motorists use on a daily basis.

In February, the Nevada Department of Transportation began closing stretches of U.S. 50 between State Route 341 and Chaves Road in Dayton, NV, to install high livestock fencing on both sides of the highway largely along rural roadway stretches to reduce vehicle-horse collisions.

The Nevada DOT is also placing roadway lighting on the highway at the end of each fenced section for enhanced visibility for motorists.

In addition, in April, the Oregon Department of Transportation recently received a special one-time allocation of $7 million in general funds from the Oregon legislature to invest in wildlife corridor projects statewide. The Oregon DOT said it has had “great success” with wildlife undercrossing structures in recent years, with five crossings built to date in the state, all on U.S. 97, leading to an 86 percent reduction in wildlife-vehicle collisions.