Voluntary Pre-Construction Property Inspections (Jan-Feb 2025)
The blue circles depict the 500-foot vibration radius, and the green circles depict the one-mile noise radius. The yellow outlines depict the inspection areas.
In January 2025, the MDTA’s progressive design build team began pre-construction property inspections to approximately 1,100 homes and businesses in the adjacent communities of the Key Bridge Rebuild project area. While the MDTA does not typically conduct pre-construction property inspections on all projects, we are committed to addressing the concerns expressed by the community.
The MDTA’s engineering analysis assured us that construction would not cause damage to properties, however, the MDTA provided voluntary pre-construction property inspections at no cost to the homeowner.
The engineers identified the locations where pile driving would take place. A pile driver is heavy-duty equipment used to install bridge supports deep in the soil. They determined that vibrations could be felt within 500 feet of the construction site, while noise could be heard within a one-mile radius. We do not anticipate any physical impacts will be within the one-mile radius, however out of abundance of caution all properties within the radius were identified for pre-construction surveys. Additionally, if any part of a street is within the radius, all properties on that street were included. Preconstruction surveys and vibration monitoring will be conducted in the surrounding areas to provide real-time feedback to the construction team.
These inspections were beneficial for everyone involved—the homeowner, MDTA, and the contractor—by establishing a clear record of the home's interior and exterior conditions before any construction begins.
Property inspections were voluntary. Property owners received letters in December 2024 with more details on the inspection process, including the specific timeline and street addresses for the inspections. Inspections were completed at the end of February 2025.
Statement Regarding Damage to Property due to a vessel striking the Francis Scott Key Bridge.
The Maryland State Treasurer’s Office extends its deepest sympathy to those affected by the Francis Scott Key Bridge collapse. If you or your family were directly impacted by the collision of the Dali ship with the bridge, please call 410-260-7229 or email
If you believe you were harmed by the State of Maryland, its officers, employees, or volunteers by an event other than the initial Key Bridge Collapse, we encourage you to visit the Maryland State Treasurer’s website under Citizen Services to file a claim. If you need paper claim forms, please contact the Insurance Division at 410-260-7684. For additional information on filing a claim, please visit treasurer.state.md.us.