Interstate 68 in Maryland

Interstate 68 in Maryland
Public domain · source
State	MD
Route	I-68
Type	Interstate
Length mi	36.08
Established	1991
Direction a	West
Terminus a	West Virginia
Direction b	East
Terminus b	I‑70
Counties	Garrett County, Allegany County

Interstate 68 in Maryland is an east–west Interstate Highway that traverses the Appalachian Allegheny Mountains across western Maryland. The route connects the Pennsylvania corridor via West Virginia with I‑70 near Hagerstown and serves as the primary freeway between Morgantown and Baltimore via I‑70. Constructed in the late 20th century, the highway passes through the cities of Cumberland and towns such as Frostburg, carrying regional freight and tourist traffic to destinations like Deep Creek Lake and scenic byways.

Route description

Interstate 68 enters Maryland from West Virginia near Cheat River and proceeds east through Garrett County and Allegany County toward Cumberland. The corridor follows a ridge line between watershed basins draining to the Ohio River and the Chesapeake Bay, intersecting major corridors such as US 219, US 40, and US 220. Along its alignment, the freeway traverses engineered structures near Sideling Hill, including the Sideling Hill roadcut exposures overlain by rock cuts and retaining walls, and crosses river valleys adjacent to Potomac River tributaries. The route provides access to local facilities such as Frostburg State University, the C&O Canal corridor, and the Cumberland Narrows recreational area. Maintenance is performed by the Maryland State Highway Administration and the roadway is signed with standard markers consistent with the Interstate Highway System.

History

Planning for a high‑capacity corridor through western Maryland dates to mid‑20th century interstate proposals associated with the Federal Aid Highway Act of 1956 and regional advocacy from organizations in Allegany County and Garrett County. Early alignments paralleled the historic National Road and the B&O Railroad right‑of‑way through the Cumberland Narrows. Construction phases in the 1970s and 1980s included major earthworks at Sideling Hill, initiatives coordinated with the Federal Highway Administration, and environmental reviews influenced by statutes such as the NEPA. Segments opened incrementally, culminating in designation as Interstate 68 in 1991 following federal approvals and signage changes integrating the corridor into the Interstate System. The highway’s development intersected with local economic efforts tied to tourism at Deep Creek Lake and industrial shifts in Cumberland tied to the decline of the B&O Railroad freight era.

Exit list

The highway’s exit numbering follows a milepost scheme beginning at the western state line; principal interchanges include connections to US 219 near Accident, MD 42 access to Oakland, and urban ramps into Cumberland linking with US 40 Alt. and US 220. Eastbound, the corridor includes interchanges for Frostburg State University, local park-and-ride facilities serving Mason‑Dixon Line commuters, and a terminal interchange with I‑70 that provides continuity toward Hagerstown and onward connections to I‑76 and I‑95 via I‑70. Service plazas and rest areas are positioned between major exits and are signed consistent with MUTCD standards.

Services and tolls

Interstate 68 in Maryland is a non‑toll roadway; operations and maintenance funding derive from state and federal transportation programs administered through the Maryland Department of Transportation and the Federal Highway Administration. Traveler services include access to local fuel, lodging, and dining in communities such as Grantsville and Cumberland, as well as recreational access to national forest tracts and state parks. Commercial weigh stations and enforcement activities are coordinated with the Maryland State Police and the Federal Motor Carrier Safety Administration for freight compliance. Emergency response networks integrate with regional agencies including the Allegany County Sheriff's Office and Garrett County Emergency Management.

Traffic and safety

Traffic volumes on the corridor vary seasonally, with summer peaks from recreational traffic to Deep Creek Lake and winter weather impacts from Appalachian storms affecting gradients near Sideling Hill and elevations approaching 2,300 feet. Crash patterns have prompted engineering countermeasures such as enhanced median barriers, guiderail upgrades, and improved signage in coordination with National Highway Traffic Safety Administration guidelines. Snow and ice control operations are managed through Maryland State Highway Administration winter maintenance protocols, and commercial vehicle restrictions are enforced during adverse conditions with temporary closures coordinated with Pennsylvania Department of Transportation and West Virginia Division of Highways notification systems.

Future plans and improvements

Planned initiatives include pavement rehabilitation, bridge preservation projects, and potential safety upgrades at high‑accident interchanges funded through the Infrastructure Investment and Jobs Act allocations and state transportation improvement programs. Corridor resilience projects aim to address stormwater runoff and slope stabilization near historic landslide zones such as those documented along Sideling Hill, with environmental coordination involving the Maryland Department of the Environment and regional planning agencies like the Allegany County Metropolitan Planning Organization. Long‑range planning considers multimodal access improvements linking to Amtrak corridors via Cumberland and freight intermodal opportunities connected to the Norfolk Southern Railway and regional trucking networks.

Category:Interstate Highways in Maryland Category:Transportation in Garrett County, Maryland Category:Transportation in Allegany County, Maryland