construction project to fix the scaling of rock on the downstream tunnel approach in 2017. The first phase, which addressed the most urgent sections of the deteriorating rock slope, has been completed. The second phase will begin the first week of May 2019 and will address additional hazards downstream of the newly completed section. The cost is listed as $750,000. Gallery See also Chesapeake and Ohio Canal National Historical Park References External links National Park Service: Paw Paw Tunnel & Paw Paw Tunnel Trail Tunnels in Allegany County, Maryland Canal tunnels in the United States Historic American Buildings Survey in Maryland Tunnels completed in 1850 Chesapeake and Ohio Canal Articles containing video clips Water transportation in Maryland Pedestrian tunnels in the United States