Draft Environmental Impact Statement for Maryland's Big Highway Widening Project Released

The state of Maryland is moving forward with a highway widening plan that would spend $11 billion in a private-partnership to add toll lanes to two Capital Beltway highways.

2 minute read

July 15, 2020, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Highway Widening

Maryland Department of Transportation / I-495/I-270 Managed Lanes Project

"The state of Maryland has released its long-awaited draft environmental impact assessment for the Hogan administration’s controversial Beltway expansion project," reports Margaret Barthel.

The environmental review for a plan that would widen parts of I-495 and I-270 in Montgomery and Prince George’s counties totals 18,000 pages. The project would add new highway capacity by adding express toll lanes or high-occupancy toll lanes, and the estimated $11 billion price tag would be covered in part by a public-private partnership.

According to Barthel, the study argues that the project would mitigate worsening traffic congestion and meet the demands of expected population growth. 

The report reduced the number of alternatives on the table from 15 to seven, but all the remaining project alternatives are likely to have significant impact, according to Barthel's explanation of the report. 

But all seven options would have significant environmental impact, the study determined. In all seven, more than 140 acres of public parks and historic sites could be affected, as could more than seventy acres of wetland. Close to 1,400 acres of forest canopy would be cleared, damaged, or disturbed.

Under all seven options, about 34 residential homes and four businesses would have to be relocated. More than 4,000 noise-sensitive land areas–like homes, schools, churches, and parks–could be impacted by the sound of the expanded highway.

More on the response of critics, who have voiced vocal opposition to the project before, is included in the source article.

Friday, July 10, 2020 in DCist

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Close-up on woman in white and blue striped knee-length dress standing next to mint green cruiser bike resting against low wrought iron fence in front of green lawn.

Paris Voters Approve More Car-Free Streets

Paris Mayor Anne Hidalgo says the city will develop a plan to close 500 streets to car traffic and add new bike and pedestrian infrastructure after a referendum on the proposal passed with 66 percent of the vote.

1 hour ago - domus

Close-up of man in manually operated wheelchair waiting at urban crosswalk.

Making Mobility More Inclusive

A new study highlights the challenges people with disabilities continue to face in navigating urban spaces.

2 hours ago - Greater Good Magazine

US and Texas flags flying in front of Texas state capitol dome in Austin, Texas.

Texas Bills Could Push More People Into Homelessness

A proposal to speed up the eviction process and a bill that would accelerate enforcement of an existing camping ban could make the state’s homelessness crisis worse, advocates say.

3 hours ago - The Texas Tribune