Maryland Route 187 (Old Georgetown Road)

Maryland Route 187 (Old Georgetown Road) is a state highway in Montgomery County, Maryland that links the residential community of Chevy Chase with the commercial and institutional center of Bethesda. The route serves as a major arterial for commuters accessing I-495, Massachusetts Avenue, and the NIH campus, while passing near landmarks such as Georgetown, Walter Reed, and the National Gallery of Art via connecting roads. The corridor supports a mix of retail, office, and residential land uses and intersects with several county and state routes including MD 355.

Route description

Old Georgetown Road begins near Wisconsin Avenue in Chevy Chase and proceeds north-northwest through a corridor adjacent to neighborhoods associated with Montgomery County history and architecture. The two- to four-lane roadway passes institutions and commercial strips that provide access to Bethesda Row, Bethesda Metro, and the campus of Walter Reed. Along its length the route intersects with important thoroughfares including local collectors, I-495 ramps via connecting avenues, and MD 355 near central Bethesda. Pedestrian and bicycle infrastructure ties Old Georgetown Road to regional trails such as the Capital Crescent Trail, while bus services link the corridor to WMATA lines and Ride On routes. Adjacent land uses include office complexes housing organizations like NIH partners, medical facilities, and retail centers serving commuters to Downtown Washington and nearby federal campuses.

History

The alignment of Old Georgetown Road traces colonial and early 19th-century routes between Georgetown and settlements in Montgomery County. During the 19th century the corridor served stagecoach and rural commerce connecting markets in Alexandria and Baltimore via intermediary roads leading to Rockville and Gaithersburg. In the early 20th century state and county improvements paralleled development driven by streetcar suburbs linked to B&O Railroad commuter patterns and the expansion of L'Enfant-era urbanization. Post-World War II suburbanization associated with the growth of Fort Meade, the Pentagon, and federal agencies precipitated widening projects and traffic-control upgrades during the 1950s and 1960s, contemporaneous with construction of the Capital Beltway and Interstate Highway System. Late 20th- and early 21st-century interventions focused on traffic signal modernization, streetscaping compatible with Bethesda Row redevelopment, and multimodal connectivity to projects like the Purple Line planning corridor and the Capital Crescent Trail conversion.

Major intersections

The route's principal junctions link Old Georgetown Road with regional connectors and transit access points: - Southern terminus near Chevy Chase at connections to Wisconsin Avenue and local collectors serving National Cathedral School-area corridors. - Intersection with MD 355 providing access toward Rockville and Gaithersburg as well as access to Bethesda Row and Bradley Boulevard. - Proximity to ramps and access roads for I-495 facilitating movements to Tysons Corner, Arlington County, and Frederick County via regional arterials. - Northern terminus in central Bethesda adjacent to transit services for WMATA and Ride On bus lines, providing connections to Union Station and Silver Spring.

Traffic and usage

Old Georgetown Road functions as a commuter spine within Montgomery County with peak-period volumes influenced by employment centers such as NIH, medical campuses like Walter Reed, and the concentration of professional services in Bethesda Row. Traffic studies prepared by Maryland State Highway Administration and Montgomery County Department of Transportation show high directional flow during weekday peaks, with multimodal demand from users accessing Metrorail stations and inter-county bus services. The corridor experiences congestion points at signalized intersections and near commercial nodes comparable to other suburban arterials serving I-495 commutes. Safety and congestion mitigation efforts coordinate with entities such as the Federal Highway Administration and regional planning through agencies like the Metropolitan Washington Council of Governments.

Future developments and improvements

Planned and proposed initiatives affecting Old Georgetown Road involve multimodal improvements coordinated among Maryland State Highway Administration, Montgomery County Department of Transportation, and transit agencies including WMATA. Projects under study include enhanced bicycle lanes tied to the Capital Crescent Trail network, signal optimization funded through state transportation grants, streetscape upgrades consistent with Bethesda Downtown Sector Plan objectives, and potential right-of-way adjustments to improve bus rapid transit connections related to Purple Line planning. Coordination with regional initiatives such as WMATA capital programs and National Capital Planning Commission recommendations aims to balance access to federal campuses, residential neighborhoods, and commercial districts like Bethesda Row while addressing resilience, safety, and sustainability targets outlined in MDOT strategic plans.

Category:State highways in Maryland Category:Transportation in Montgomery County, Maryland