PRINCE FREDERICK, Md. – ?June 15, 2026? – The Calvert County Department of Public Works, Water & Sewerage Division, advises residents of water line extension work along Auto Drive in Prince Frederick from June 15 through July 24, weather permitting.  

The project will create a system loop to increase the resiliency of the water supply for businesses on Prince Frederick Boulevard and CalvertHealth Medical Center.  

Temporary single-lane closures on Route 4 are scheduled for June 15 and July 9 during off-peak traffic hours. Access to the hospital from Route 4 will not be affected.  Crews will begin with the southbound lanes before transitioning to the northbound lanes. Each lane closure is expected to last 10 to 15 minutes.  

The exit lane from Auto Drive to Rt4 will be closed during construction from approximately June 22 through July 24. The detour will be removed for the Fourth of July holiday weekend. Traffic will be detoured west on Auto Drive to North Prince Frederick Boulevard and onto Route 4 from Stoakley Road. The detour route will not affect access to CalvertHealth from Route 4. 

The northbound shoulder of Route 4 will be closed from June 26 to July 14. The closure will not affect access to CalvertHealth from Route 4.  

The Calvert County Water & Sewerage Division appreciates the community’s patience and understanding during this work. For questions or concerns, call 410-535-1600, ext. 2329.  

Find information on Calvert County Government services online at www.CalvertCountyMd.gov. Stay connected with Calvert County Government through the mobile app, newsletters, social media and more at www.CalvertCountyMd.gov/StayInformed.