Mississippi DOT Relaunches Anti-Littering Campaign

The Mississippi Department of Transportation recently relaunched a statewide anti-littering campaign, aimed at encouraging Mississippians to put trash where it belongs and recycle whenever possible.

[Above photo by the Mississippi DOT]

The centerpiece of the campaign is a video featuring agency employees – including Mississippi DOT Executive Director Brad White (above) – not only encouraging state residents to put trash where it belongs, but also highlighting the cost of highway litter cleanup efforts.

“Litter is a big problem in Mississippi,” White explained in a statement. “Mississippi DOT spends over $3 million a year picking up litter. This is money that could be used to build and maintain roads and bridges. Let’s all be good stewards of our great state and make the choice to put our trash where it belongs.”

The agency is also launching a new anti-litter webpage as part of its relaunched campaign – a “one-stop hub” that contains information about the state’s Adopt-a-Highway program, Mississippi litter statistics and resources, stormwater pollution information, anti-litter resources for school teachers, and much more.

State departments of transportation are using a variety of tactics to combat littering on state highways.

For example, the Tennessee Department of Transportation recently celebrated the 40th anniversary of its “Litter Grant Program.” That program – started in 1983 – provides funding to all 95 counties within the state to pay for a wide variety of litter-related efforts, such as litter and tarp law enforcement; cleanup and recycling events; and litter prevention education campaigns.

Those funds also help county governments participate in multijurisdictional and statewide collaborations with Tennessee DOT’s “Nobody Trashes Tennessee” litter prevention campaign, conducted jointly with Keep Tennessee Beautiful and its local affiliates.

Meanwhile, in April, the Illinois Department of Transportation launched a new public outreach effort called “Think Before You Throw!” as part of its ongoing awareness campaign to reduce littering on state highways and roads.

The “Think Before You Throw!” initiative aims to reduce roadside litter along the state’s more than 150,000 miles of roads by raising awareness of the negative environment impact of trash, for both state residents and the nearly 100 million tourists who visit annually, the agency said.

And, in March, the Maryland Department of Transportation launched “Operation Clean Sweep Maryland,” a new initiative that seeks to nearly double the frequency of litter pickup and mowing efforts along state roads.

This new effort – which began in the Baltimore and Washington, D.C., regions – is under the purview of the Maryland State Highway Administration, one of Maryland DOT’s modal divisions.

WSDOT Salutes 79-Year-Old Adopt A Highway Volunteer

The Washington Department of Transportation recently devoted a blog post to 79-year-old Paul Hampton, who has been cleaning up debris along state roadways as an Adopt-A-Highway volunteer for the last 27 years.

[Above photo by WSDOT]

Hampton originally decided to volunteer his time to pick up litter as part of the Adopt-A-Highway program in his community in 1996 – joining a volunteer litter cleanup crew organized by the Forks Elks Lodge.

Paul Hampton, second from left. Photo by WSDOT.

Hampton moved to Washington State from Florida in 1980 and began getting involved in his local Elks Lodge, attracted to the group’s vision for ongoing community service.

He soon learned about WSDOT’s Adopt-A-Highway program and decided the Forks Elks Lodge needed to adopt a local stretch of highway in town to help keep their little corner of the Evergreen State clean and welcoming to visitors.

“It started as a group of people picking up trash along US 101 in town,” Hampton explained. “Then the local hospital thought it was a good idea to adopt a small stretch too.”

The community soon rallied around the idea of being part of something bigger and committed to routine litter cleanups. Before Hampton knew it, he said people from all across the Olympic Peninsula recognized the value in picking up litter.

“A group of women decided to participate in the Adopt-A-Highway program, so we had a friendly competition going with them too,” he pointed out.

Why do all this? Hampton explained that it’s part of the creed he lives by as a retired Navy veteran and from working for the Washington State Department of Natural Resources – “help people and make the world a better place,” he said.

WSDOT noted that in 2022 alone, agency crews, partners, and volunteers collected 1,402 tons of trash along state highway rights of way – roughly 152,500 bags of litter.

As of July 20, 202023, WSDOT said that – again, along with its partners and volunteers – it has collected 1,800 tons of trash and expects to surpass the total amount of trash gathered in 2022.

Tennessee Litter Grant Program Notches 40 Years

The Tennessee Department of Transportation recently celebrated the 40th anniversary of its “Litter Grant Program.” That program – started in 1983 – provides funding to all 95 counties within the state to pay for a wide variety of litter-related efforts, such as litter and tarp law enforcement; cleanup and recycling events; and litter prevention education campaigns.

[Above photo by Tennessee DOT]

Those funds also help county governments participate in multijurisdictional and statewide collaborations with Tennessee DOT’s “Nobody Trashes Tennessee” litter prevention campaign, conducted jointly with Keep Tennessee Beautiful and its local affiliates.

“[Our] litter grant funding model ensures a comprehensive and collaborative approach to litter abatement and is making a real difference in keeping the state of Tennessee safe and beautiful,” explained Denise Baker, transportation supervisor for the Tennessee DOT, in a statement.

“By providing funding at the county level, communities across the state organize litter cleanups on roadways and river ways based on their specific needs,” she added. “We are thrilled to celebrate the 40th year of the program.”

Collectively, the agency’s litter grant program is responsible for removing an average of 11,243 tons of roadway trash annually and, in 2022 alone, nearly 29 percent of that statewide total was diverted from landfills and recycled. Additionally, 3,480 illegal dumpsites were cleaned up. All told, more than 435,529 tons of litter have been removed from Tennessee roadways since the program’s inception four decades ago, Tennessee DOT said.

The program’s impact is further amplified through local government partners that invest additional resources in trash cleanup and removal, as well as by individuals who contribute tens of thousands of volunteer hours.

This makes the program extremely efficient, saving communities and the state critical funds when compared to the costs of contracted litter pickup. For example, the agency said the 2022 statewide average cost of litter grant-funded cleanup totaled $14.40 per mile, while contracted litter pickup routinely costs Tennessee DOT more than $500 a mile.

On a yearly basis, the agency said it allocated $5.5 million via its Litter Grant Program – a total that has remained the same since 2017. The amount each county receives is based on a formula accounting for population and road miles. The current series of litter grant contracts includes just over $3.8 million for local litter pickup operations and over $1.6 million for litter prevention education.

The Tennessee DOT noted its litter grant contracts require that 20 percent to 35 percent of each county’s total funding is budgeted for litter prevention education efforts. Counties are also required to tackle litter prevention education in three of five designated categories: students, public, media, business, and government.

The grants also fund Keep Tennessee Beautiful, which provides litter prevention education, community engagement, and the promotion of volunteers for beautification projects, the agency said.

Tennessee Study Charts Six Year Drop in Roadway Litter

A study funded by the Tennessee Department of Transportation and Keep Tennessee Beautiful found that, over the last six years, there’s been a 12 percent drop in litter on state roadways.

[Above photo by Tennessee DOT]

The 2022 Tennessee Statewide Litter Study – conducted by engineering firm Burns & McDonnell as a “follow-up “ to similar litter studies in 2016 and 2006 – helps identify how litter has changed over time, the relationship between litter volume and roadside characteristics, and assess the impact of nearby infrastructure and socioeconomic factors.

The study’s methodology included the random selection of 120 roadway locations split equitably among the following four roadway classifications in both urban and rural areas of Tennessee: Interstate, U.S. highway, state highway, and local roads.

The “sampling plan” used by Burns & McDonnell for this study included the investigation of designated litter “hot spots” in the cities of Memphis, Nashville, Knoxville, and Chattanooga, as well as “at-risk” and “distressed locations” along other roadways statewide.

“The 2022 study is one of several research products that helps [us] evaluate progress on litter abatement and make the most effective use of future litter prevention and cleanup resources,” explained Denise Baker, Tennessee DOT transportation supervisor, in a statement.

“Overall, while encouraging that there has been a 12 percent reduction of litter on Tennessee roadways, there are still more than 88 million pieces of litter on public roads at any given time,” Baker said.

Some of the key findings from Tennessee’s 2022 litter study include:

  • There are roughly 88.5 million pieces of litter on Tennessee roadsides at any given time, down from 100 million in 2016.
  • U.S. highways had the lowest amount of litter-per-mile, at 7,386 items of litter per mile.
  • Local roads – which account for the most road miles (82,538 miles) in Tennessee – in aggregate had the highest percentage (80 percent) of total litter items by roadway type.
  • Most of the litter on Tennessee roadways is smaller than four inches. An estimated 679.7 million pieces, or 88 percent, items of litter were four inches or smaller in size. However, there is still a significant quantity (88.5 million pieces or 12 percent) of larger, and often more visible, litter on Tennessee roadways.
  • Plastic and paper items compose most litter items, while the number of cigarette butts observed per site decreased for interstate and U.S. highway roadway classifications in 2022 versus the 2016 study.
  • Motorists were determined to be the leading sources of litter on Tennessee roadways.

Other state departments of transportation have also conducted or participated in similar roadway litter studies.

For example, the Pennsylvania Department of Transportation is playing a key role in executing the state’s first ever ‘Litter Action Plan’ unveiled in November 2021; developed after a comprehensive study of roadway litter issues across Pennsylvania.

Subsequently, a group of employees from PennDOT and the Pennsylvania Department of Environmental Protection (DEP) received a Governor’s Awards for Excellence in recognition of their efforts to develop that Litter Action Plan.

PennDOT said it spends roughly $14 million each year on litter cleanup statewide, while DEP has funded “Pick Up Pennsylvania” community litter cleanups and illegal dump site cleanups for over two decades – supporting volunteers in removing many tons of trash from the land and waters.

The persistence of littering is what prompted PennDOT and DEP to collaborate with Keep Pennsylvania Beautiful to conduct the first comprehensive state study to inform development of the Litter Action Plan, with a focus on changing littering behavior.

Michigan DOT Preps for Spring Highway Cleanings

The Michigan Department of Transportation is preparing to give roadsides along state highways their first full cleanings of 2023 in what the agency said has become an annual “rite of spring” statewide.

[Above photo by the Michigan DOT]

The agency said state workers and members of its Adopt-A-Highway program will pick up litter from along roadsides in Michigan’s Lower Peninsula April 22-30. The first such pickup for roadsides in the Upper Peninsula occurs May 6-14, when spring weather has had “more time to set in” for the northern part of the state.

“Our thousands of Adopt-A-Highway volunteers are dedicated to keeping roadsides in their communities clean,” noted Michigan DOT Acting Director Brad Wieferich in a statement.

“They make a huge difference every year,” he added. “Let’s help them stay safe while they’re out there – keep an eye out for the volunteers and drive cautiously during the pickup periods.”

The agency said its Adopt-A-Highway program, which began in 1990, now includes nearly 2,900 groups that have adopted more than 6,000 miles of state highway. Annually, those volunteers pick up litter three times per year and typically collect 60,000 to 70,000 bags of trash; a service worth an estimated $5 million value yearly for the state.

Several state departments of transportation across the country have already activated similar spring litter cleanup events and public awareness campaigns regarding roadway trash.

The New Jersey Department of Transportation recently initiated a months-long effort aimed at removing debris and sprucing up roadways statewide.

“We will dedicate increased resources to collecting litter, removing graffiti, pruning trees, and mowing grass on the 2,300 miles of state highways,” noted New Jersey DOT Commissioner Diane Gutierrez-Scaccetti in a statement. “NJDOT’s Highway Operations Technicians will be working hard to tackle litter hot spots and keep the shoulders, medians, and ramps on our roadways clean and litter free.”

The Illinois Department of Transportation recently launched a new public outreach effort called “Think Before You Throw!” as part of its ongoing awareness campaign to reduce littering on state highways and roads.

The “Think Before You Throw!” initiative aims to reduce roadside litter along the state’s more than 150,000 miles of roads by raising awareness of the negative environment impact of trash, for both state residents and the nearly 100 million tourists who visit annually.

In March, the Maryland Department of Transportation launched “Operation Clean Sweep Maryland,” a new initiative that will nearly double the frequency of litter pickup and mowing efforts along state roads.

This new effort – which began in the Baltimore and Washington, D.C., regions – is under the purview of the Maryland State Highway Administration, one of Maryland DOT’s modal divisions.

Meanwhile, the Tennessee Department of Transportation sponsors an annual litter prevention campaign – called “Nobody Trashes Tennessee” – with Keep Tennessee Beautiful affiliates and Adopt-A-Highway groups.

In November 2022, more than 1,300 volunteers statewide removed more than 48,000 pounds of litter in their communities as part of its month-long “No Trash November” roadway cleanup effort.

Concurrently, in August 2022, the Pennsylvania Department of Transportation joined several fellow state agencies to help launch a new anti-litter campaign entitled “PA Fights Dirty: Every Litter Bit Matters.” The creation of this campaign is one of the many recommendations made by Pennsylvania’s first-ever Litter Action Plan, released in December 2021. That plan also won a Pennsylvania Governor’s Awards for Excellence in May 2022.

Illinois DOT Launches ‘Think Before You Throw’ Anti-Littering Effort

The Illinois Department of Transportation has launched a new public outreach effort called “Think Before You Throw!” as part of its ongoing awareness campaign to reduce littering on state highways and roads.

[Above photo by Illinois DOT]

The “Think Before You Throw!” initiative aims to reduce roadside litter along the state’s more than 150,000 miles of roads by raising awareness of the negative environment impact of trash, for both state residents and the nearly 100 million tourists who visit annually.

“As one of the largest landowners in the state, [we] take great pride in making sure we are keeping our state as clean and free of clutter as possible, but we need your help,” said Illinois DOT Secretary Omer Osman in a statement.

“Excess garbage on highways can be easily avoided. Dispose of garbage properly. Make sure loads are properly secured and covered to keep debris and other trash from winding up on the roads,” he added. “Litter has consequences: Think before you throw!”  

With the arrival of spring, the agency said tis highway crews and volunteers will be engaged in litter removal operations statewide until next winter. In 2022, Illinois DOT said it spent approximately $26.5 million picking up litter and removing large debris.

The agency added that its Adopt-A-Highway program aims to offset the negative environmental impact or roadside trash by asking community groups and organizations to help with litter removal on designated state routes. In 2022, those volunteers logged 750 hours while collecting more than 1,700 bags of trash, which included in the items were televisions, toys, and a hand-written note apologizing for eating the last of a box of Twinkies.

State DOTs across the country are involved in a variety of anti-littering and roadside trash cleanup efforts.

In March, the Maryland Department of Transportation launched “Operation Clean Sweep Maryland,” a new initiative that will nearly double the frequency of litter pickup and mowing efforts along state roads.

This new effort – which began in the Baltimore and Washington, D.C., regions – is under the purview of the Maryland State Highway Administration, one of Maryland DOT’s modal divisions.

Meanwhile, the Tennessee Department of Transportation sponsors an annual litter prevention campaign – called “Nobody Trashes Tennessee” – with Keep Tennessee Beautiful affiliates and Adopt-A-Highway groups.

In November 2022, more than 1,300 volunteers statewide removed more than 48,000 pounds of litter in their communities as part of its month-long “No Trash November” roadway cleanup effort.

Concurrently, in August 2022, the Pennsylvania Department of Transportation joined several fellow state agencies to help launch a new anti-litter campaign entitled “PA Fights Dirty: Every Litter Bit Matters.”

The creation of this campaign is one of the many recommendations made by Pennsylvania’s first-ever Litter Action Plan, released in December 2021. That plan also won a Pennsylvania Governor’s Awards for Excellence in May 2022.

Out west, the California Department of Transportation along with the Sacramento Kings basketball team and more than 35 volunteers recently joined forces to collect and remove litter from Robert T. Matsui Park along the Sacramento River.

Caltrans Director Tony Tavares explained that this cleanup event highlighted how trash and debris pollute Sacramento waterways, including through storm water flows.

That event collected and removed more than 500 pounds of trash from the park, which included things such as broken glass, cigarettes, plastic bottles, and cans, he said.

Sacramento Kings, Caltrans Work on Local Waterway Cleanup

The Sacramento Kings basketball team, the California Department of Transportation, and more than 35 volunteers recently joined forces to collect and remove litter from Robert T. Matsui Park along the Sacramento River.

[Above photo by Caltrans]

In a statement, Caltrans Director Tony Tavares explained that this cleanup event highlighted how trash and debris pollute Sacramento waterways, including through storm water flows. The event collected and removed more than 500 pounds of trash from the park, which included things such as broken glass, cigarettes, plastic bottles, and cans, he said.

“Sacramento is known as the River City, and residents and tourists love to visit and enjoy our rivers,” Tavares pointed out. “But these fragile waterways and public spaces need to be protected, so everyone needs to work together to keep our waters clean and litter-free.”

Caltrans noted that recent storms put a spotlight on the threat of storm water pollution in the Sacramento region and statewide as well. The agency said storm water can pick up a variety of pollutants, including trash, litter, and bacteria, flushing it down storm drains that flow to local lakes, rivers and streams.

State departments of transportation across the country are engaged in a variety of efforts to not only remove litter from waterways but manage storm water flows as well.

For example, in September 2022, the Tennessee Department of Transportation began expanding upon its traditional role in the Mississippi River Delta Region from building and maintaining roads to include fighting litter, supporting tourism, and promoting economic development.

The agency is doing so through the Tennessee Delta Alliance or TDA, a partnership between Tennessee DOT and the University of Memphis.

That alliance also established a regional, water-based Keep America Beautiful affiliate along Tennessee’s portion of the Great River Road National Scenic Byway.

Additionally, in March 2022, Tennessee DOT teamed up with Keep the Tennessee River Beautiful and other partners to establish a network of 17 “Seabin” automated litter and debris removal devices across the Tennessee River watershed. In related move, in April 2021, the agency provided the Tennessee Aquarium grants to establish two new exhibits illustrating how microplastics and other roadside trash can negatively affect the health of the ocean as well as rivers, lakes, and streams.

Maryland DOT Begins Statewide Litter, Mowing Effort

The Maryland Department of Transportation recently launched “Operation Clean Sweep Maryland,” a new initiative that will nearly double the frequency of litter pickup and mowing efforts along state roads.

[Above photo by Maryland DOT]

This new effort – which launched in the Baltimore and Washington, D.C., regions – is under the purview of the Maryland State Highway Administration, one of Maryland DOT’s modal divisions.

The agency said it increased its annual maintenance budget more than 30 percent compared to 2022 to nearly $30 million to accommodate additional litter removal and mowing efforts as part of Operation Clean Sweep Maryland.

The agency added that it spent approximately $39 million over the last five years collecting and disposing more than 26,000 truckloads of litter along state roads. Annually, MDOT SHA collects approximately 5,300 truckloads of trash at a cost of more than $7 million.

“Operation Clean Sweep Maryland” also includes funding to hire additional state employees to increase litter pickup frequency as well as to purchase additional mowing equipment and develop contract resources to maintain both the increased mowing and litter removal cycles.

“Maryland’s highways connect us to friends, family, schools, jobs and recreation, and serve as the welcome mat for visitors to our state,” explained Paul J. Wiedefeld, secretary for the Maryland DOT, in a statement.

“We can’t allow litter to destroy the beauty of our communities and threaten our safety and the environment,” he added. “We need the help of everyone to tackle this problem, and our state highway crews are prepared to lead the way.”

In addition to hindering mowing and landscape efforts, as well as creating negative environmental impacts, roadway trash severely impacts drainage infrastructure, Maryland DOT said. Backed up drains cause rain and snow melt to “pond” on the roads, creating a major safety hazard for motorists, the agency said. 

Concurrently, due to a mild winter, MDOT SHA said it anticipates roadside mowing will be required earlier than usual, thus necessitating earlier and more frequent seasonal trash removal efforts.

State departments of transportation across the country are involved in a wide range of anti-littering efforts.

For example, the Tennessee Department of Transportation sponsors an annual litter prevention campaign – called “Nobody Trashes Tennessee” – with Keep Tennessee Beautiful affiliates and Adopt-A-Highway groups.

In November 2022, more than 1,300 volunteers statewide removed more than 48,000 pounds of litter in their communities as part of its month-long “No Trash November” roadway cleanup effort.

Meanwhile, in August 2022, the Pennsylvania Department of Transportation joined several fellow state agencies to help launch a new anti-litter campaign entitled “PA Fights Dirty: Every Litter Bit Matters.”

The creation of this campaign is one of the many recommendations made by Pennsylvania’s first-ever Litter Action Plan, released in December 2021. That plan also won a Pennsylvania Governor’s Awards for Excellence in May 2022.

Concurrently, in July 2022, Ohio launched a new litter control program – one administered by the Ohio Department of Transportation – that seeks to broaden engagement by the business community in its trash removal efforts.

That Ohio program allows businesses and groups to fund litter removal services along one-mile, one-direction segments of state highways. In exchange for their sponsorship, Ohio DOT displays the name of the business or group on a sign within their sponsored segment.

Tennessee DOT Tallies November Litter Cleanup Numbers

More than 1,300 volunteers statewide removed more than 48,000 pounds of litter in their communities as part of its second-ever month-long “No Trash November” roadway cleanup effort spearheaded by the Tennessee Department of Transportation.

[Above photo by the Tennessee DOT]

The agency sponsors this annual litter prevention campaign – called “Nobody Trashes Tennessee” – with Keep Tennessee Beautiful affiliates and Adopt-A-Highway groups.

“Litter is more than an eyesore. It’s an enormous burden to the state with impacts on public health and safety, the environment, and the economy,” said Denise Baker, who works in the Tennessee DOT Highway Beautification Office, in a statement.

“Our No Trash November partners are passionate about keeping their communities safe, clean, and beautiful and we are thrilled with their continued support for this campaign,” she added. “We encourage all Tennesseans to keep up the momentum by taking personal responsibility for the litter in their neighborhoods and participating in local cleanups or the Adopt-A-Highway program.”

State departments of transportation across the country are involved in a wide range of anti-littering efforts.

For example, in August, the Pennsylvania Department of Transportation recently joined several fellow state agencies to help launch a new anti-litter campaign entitled “PA Fights Dirty: Every Litter Bit Matters.”

The creation of this campaign is one of the many recommendations made by Pennsylvania’s first-ever Litter Action Plan, released in December 2021. That plan also won a Pennsylvania Governor’s Awards for Excellence in May.

Meanwhile, in July, Ohio launched a new litter control program launched, one administered by the Ohio Department of Transportation, that seeks to broaden engagement by the business community in its trash removal efforts.

That new Ohio program allows businesses and groups to fund litter removal services along one-mile, one-direction segments of state highways. In exchange for their sponsorship, Ohio DOT displays the name of the business or group on a sign within their sponsored segment.

Concurrently, the Texas Department of Transportation recruited popular singer, songwriter, and actor Joe Jonas to star in a series of Public Service Announcements as part of the agency’s “Don’t Mess with Texas” anti-littering campaign.

The agency said the “show-stopping” performer – a former Westlake, Texas, resident – takes an “over-the-top” approach in the PSAs to remind folks to keep Texas roadways free of litter.

Utah Introduces ‘Roadkill Reporter’ App for Motorists

The Utah Division of Wildlife Resources (Utah DWR) and Utah Department of Transportation recently introduced a free mobile phone application called “The Roadkill Reporter” to make it easier for motorists to report the location and description of any dead animals on or near roads for removal.  

[Above photo by Utah DWR

Available through both the Google Play store and Apple’s App Store, the new Roadkill Reporter app – developed over the last two years with funding from both state agencies – serves another purpose, as well: Pinpointing where the agencies need to build wildlife crossings on state highways. 

“It is important for us to understand how many wildlife-vehicle collisions occur in Utah,” explained Utah DWR Migration Initiative Coordinator Blair Stringham in a statement. “This new app will allow us to know exactly when and where collisions occur, which will help us identify hot spot areas on Utah highways. We can then work with Utah DOT and other partners to install underpasses, fencing, wildlife overpasses, and other structures to reduce collisions in those areas and keep wildlife and people safe.” 

Along with providing information about potential areas for wildlife crossings, the data collected through the app will also benefit the Utah Wildlife Migration Initiative and its efforts to learn more about the annual migration patterns of different animal species in Utah.  

The Utah Wildlife Migration Initiative is a program that tracks and studies the migration patterns of different wildlife and fish species in the state. Most of the data comes from animals wearing GPS tracking devices or from fish tagged with implanted transmitters. The tracking data benefits wildlife because biologists can identify where the animals spend large portions of time and then make habitat improvements in those areas. 

“For years, wildlife carcass data has been a key factor in Utah DOT and Utah DWR’s decision-making process to make Utah roads safer and improve wildlife population health,” noted Utah DOT Natural Resource Manager Matt Howard. “The new app will make it easier for the public to use and will give us more and better information to guide future mitigation efforts.” 

The most reported wildlife-vehicle collisions in Utah are with deer and elk. So far, in 2022, there have been 4,900 reported collisions with deer, 166 reported collisions with elk, and 20 reported collisions with moose. However, the actual number of collisions is likely twice as high, because many incidents just go unreported, Utah DWR noted. 

Many state departments of transportation have beefed up efforts to address wildlife crossing needs on state roads in recent years. 

For example, in August, the Colorado Department of Transportation recently completed the state’s newest wildlife overpass and underpass on U.S. Highway 160 in the southwestern part of the state, celebrating the accomplishment with a ribbon-cutting event. 

To date, Colorado DOT said it has built more than 60 wildlife mitigation structures crossing above or under highways throughout the state. Additionally, it has installed 400 miles of high big game fencing along state and U.S. highways or next to the interstates. 

Meanwhile, a research document recently released by an international pool-funded study led by the Nevada Department of Transportation provides an “authoritative review” of the most effective measures to reduce animal-vehicle collisions, improve motorist safety, and build safer wildlife crossings. 

With as many as two million collisions with large mammals in the United States leading to approximately 200 human deaths every year, the review compiled, evaluated, and synthesized studies, scientific reports, journal articles, technical papers, and other publications from within the United States and beyond to determine the effectiveness of 30 different mitigation measures. 

Ultimately, the report provides best management practices to reduce animal-vehicle collisions, increase habitat connectivity, and implement cost-effective solutions.