Beyond MoCo: Bridge Rehabilitation Brings Continuous Lane Closures to US-15 in Frederick County

Beginning on Friday, December 3 at 7AM, Maryland State Highway Administration contractors will implement long-term continuous lane closures on Northbound US-15 in Thurmont, Frederick County.

Crews will be replacing the bridge deck (concrete driving surface) on Northbound US-15 above MD 77 (West Main Street) and Hunting Creek. Northbound US-15 will be reduced to a single lane for six to eight months during both phases of this two-phase bridge rehabilitation. Southbound US-15 will not be affected by this project.

“This project is another example of [the State Highway Administration’s] commitment to infrastructure improvements and safety,” Maryland State Highway Administrator Tim Smith said in a written release. “Rehabilitation of the aging bridge will result in a smoother driving surface for motorists and reduce the need for costly future maintenance.”

The Northbound US-15 bridge was built in 1957 and though it is still safe, it is nearing the end of its useful service life. In addition to the bridge deck replacement, crews will also be repairing and strengthening the steel beams and concrete bridge piers underneath the bridge deck.

Bicycle traffic on Northbound US 15 will be detoured via Thurmont Boulevard, MD-806 (Frederick
Road), Water Street and MD-77.

Northbound US 15 on the bridge. (November 2021)

Maryland State Highway Administration photo of Northbound US-15 above MD 77 (West Main Street) and Hunting Creek.

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