The Chesapeake Bay Crossing Study: Tier 1 NEPA (Bay Crossing Study) is a National Environmental Policy Act (NEPA) study that will result in the identification of a preferred corridor alternative to address congestion at the Chesapeake Bay Bridge and evaluation of its financial feasibility.

The MDTA and Federal Highway Administration (FHWA) are following a tiered NEPA process that provides a systematic approach for advancing potential transportation improvements.

The Bay Crossing Study includes scoping; purpose and need development; corridor alternative analysis and screening; traffic and environmental analyses; and public and agency involvement. Funded by toll dollars, the Bay Crossing Study Tier 1 began in 2016 and is expected to be complete in 2021.

The Maryland Transportation Authority (MDTA) owns, finances, operates, and maintains the William Preston Lane, Jr. Memorial (Bay) Bridge and is conducting the $5 million Bay Crossing Study.