Campus Construction Notices
Purple Line Construction Updates
Summary of Major Impacts - Fall 2024
The university worked with the Maryland Department of Transportation, the project owner, to accelerate major construction in the core of campus, which is now complete. As a result, Purple Line construction will be much less impactful in the heart of campus in the coming academic year than it was last year. As minor construction continues in the campus core and major construction continues in other areas, watch for the following impacts this fall:
- Campus Drive & Adelphi Road Intersection Adjusted Traffic Pattern (near UMGC): No left turns will be allowed from Adelphi Road onto Campus Drive from either direction, and westbound vehicles on Campus Drive will no longer be able to turn left onto Adelphi Road to go southbound (see map).
- Road Closures on Rossborough Lane:
- Lane Closures on Baltimore Avenue at the Intersection of Rossborough Lane: 8:30 a.m. to 3:30 p.m., Monday through Friday. At least one northbound lane and one southbound lane will be open at all times (see map)
- Two-Way Traffic on Campus Drive: Between Alumni Drive (in Lots 1 and Z) and Regents Drive, Campus Drive will be two-way until about November 2026, when the Purple Line trains will begin operational testing (see map).
- Alumni Drive Adjusted Traffic Pattern: In accordance with long-term campus plans and changes to accommodate the Purple Line, the traffic pattern in Lots 1/Z has been adjusted (see map).
If you have questions or encounter issues while traveling around campus, including accessibility concerns, please contact purpleline@umd.edu.
Campus Drive Sidewalk & Bike Path Closure - 11.21.24-11.25.24
Starting on or about Thursday, November 21, the Purple Line contractor will close the Campus Drive sidewalk and bike path between Library Lane and the University Health Center main entrance for approximately 3 days. The main entrance will remain open. See the attached map for details and detour.
Baltimore Avenue Sidewalk Closures - 11.18.24-12.6.24
Starting on or about Monday, November 18, the Purple Line contractor will close the Baltimore Avenue sidewalks between Frat Row and Hotel Drive as follows:
- East side of Baltimore Avenue will be closed Monday, November 18, through Monday, December 2
- West side of Baltimore Avenue will be closed Wednesday, December 4, through Friday, December 6
See maps for details and pedestrian detours.
Overnight Traffic Controls - 11.12.24-11.16.24
The Purple Line contractor will conduct overnight traffic control operations at the Campus Drive/Regents Drive and Union Drive/Alumni Drive intersections at the dates and times listed below. Flaggers will direct traffic. See map for details.
- Tuesday, November 12 through Thursday, November 14, from 7 p.m. each evening to 6 a.m. the following morning
- Saturday, November 16, from 12 a.m. to 6 a.m.
Campus Drive Sidewalk & Crosswalk Closure - 11.6.24 & 11.8.24
The Purple Line contractor will close the crosswalk on the east side of the Campus Drive/Regents Drive
intersection, and the adjacent Campus Drive sidewalk, for approximately 3 hours on the following dates:
- Wednesday, November 6 from 8 p.m. to 11 p.m.
- Friday, November 8 from 6 a.m. to 9 a.m.
See map for details and pedestrian detour.
Regents Drive Sidewalk Closure - 11.4.24-11.6.24
Starting on or about Monday, November 4, the Purple Line contractor will close a portion of the sidewalk on the east side of Regents Drive near the Toll Physics Building from 6 a.m. to 4 p.m. for approximately 3 days. See map for details and detour.
Baltimore Avenue Lane Closures - 10.21.24-12.31.24
Starting on or about Monday, October 21, the Purple Line contractor will conduct lane closures on Baltimore Avenue at the intersection of Rossborough Lane from 8:30 a.m. to 3:30 p.m., Monday through Friday until the end of December. At least one northbound lane and one southbound lane will be open at all times. As a reminder, the Baltimore Avenue crosswalk at Rossborough Lane is closed long-term.
Watch for shifting construction activity and allow for additional travel time. See map for details.
Traffic Pattern Adjustments at the Campus Drive & Regents Drive Intersection – Starting 10.15.24
To improve the functionality and safety of the Campus Drive and Regents Drive intersection, the Purple Line contractor will implement a traffic-pattern adjustment starting on or about Tuesday, October 15.
The number of vehicle travel lanes through the intersection will be reduced; however, all turning movements will still be allowed. Use caution when traveling through the intersection and see the attached map for reference.
Rossborough Lane Crosswalk Closure – 10.9.24-10.17.24
Starting on or about Wednesday, October 9, the Purple Line contractor will close the crosswalk and a portion of sidewalk on the west side of the Rossborough Lane and Baltimore Avenue intersection (near Turner Hall) for approximately one week. The adjacent bus stop will remain open and accessible from the north. See map for details and pedestrian detour.
Campus Drive & Adelphi Road Intersection Adjusted Traffic Pattern – 10.8.24-4.8.25
Starting on or about Tuesday, October 8, the Purple Line contractor will change the traffic pattern at the Campus Drive and Adelphi Road intersection near UMGC for approximately 6 months. The following changes will be implemented:
- Adelphi Road: No left turns will be allowed from Adelphi Road onto Campus Drive from either direction.
- Campus Drive: Westbound vehicles on Campus Drive will no longer be able to turn left onto Adelphi Road to go southbound.
Travelers approaching from the north should use the campus entrances at Paint Branch Drive, Stadium Drive or Baltimore Avenue (see map).
See the detour map for details. The traffic pattern will be different on days with home football games.
Sidewalk Closure near the Mitchell Building – 10.7.24-10.18.24
Starting on or about Monday, October 7, the Purple Line contractor will close the sidewalk between the “M” and the Clarence M. Mitchell, Jr. Building for approximately 2 weeks. A temporary sidewalk will be provided adjacent to the closure. See map for details.
Crosswalk & Partial Sidewalk Closure – 9.17.24
On Tuesday, September 17, the Purple Line contractor will close the crosswalk and a portion of sidewalk on the west side of the Rossborough Lane and Baltimore Avenue intersection (near Turner Hall) from approximately 7 a.m. to 10 a.m. The adjacent bus stop will remain open and accessible from the north.
See the attached map for details and pedestrian detour.
Baltimore Avenue Lane Closures – 9.9.24-10.11.24
Starting on or about Monday, September 9, the Purple Line contractor will close one northbound lane of Baltimore Avenue at the intersection of Rossborough Lane from 8:30 a.m. to 3:30 p.m., Monday through Friday for approximately one month. As a reminder, the Baltimore Avenue crosswalk at Rossborough Lane is closed long-term.
See the attached map for details and pedestrian detour.
Alumni Dr./Union Dr. Intersection Lane Closures – 9.6.24 & 9.9.24
On Friday, September 6 and Monday, September 9, the Purple Line contractor will conduct lane closures from 6 a.m. to 3 p.m. at the intersection of Alumni Drive (in Lots 1/Z) and Union Drive (near Knight Hall).
Flaggers will maintain two-way traffic. See map for details.
Temporary Connector Road Closure – 9.5.24
On Thursday, September 5, 2024, the Purple Line contractor will close the temporary connector road between Ehrensberger Drive/Presidential Drive to Lot 1. See map for details.
Long-term Sidewalk Closure near Turner Hall – Starting 9.5.24
On Thursday, September 5, the Purple Line contractor will close the sidewalk from Rossborough Lane to Turner Hall for approximately 7 months. See map for location and pedestrian detour route.
Overnight Lane Closures - 9.3.24-9.18.24
Starting on or about the evening of Tuesday, September 3, the Purple Line contractor will conduct overnight lane closures from 8 p.m. to 6 a.m. for approximately 2 weeks on the following roads:
- Campus Drive between Paint Branch Drive and the Benjamin Building
- Union Drive between the Benjamin Building and Alumni Drive (in Lots 1 & Z)
- Regents Drive between the Geology Building service lot and the Clarence Mitchell Building
- Lots C1/L connector road (near Turner Hall)
Flaggers will maintain two-way traffic. See map for details.
Road & Sidewalk Reopenings – 8.21.24
On Wednesday, August 21, the Purple Line contractor will reopen the following roads and sidewalks that were closed over the summer:
- Campus Drive between Regents Drive (near Symons Hall) and Alumni Drive (in Lots 1 and Z)
- Campus Drive between Adelphi Road and Presidential Drive (near UMGC)
Lane Closures – 8.18.24-8.20.24
Starting on Sunday, August 18 through Tuesday, August 20, the Purple Line contractor will conduct lane closures in the following areas for roadway striping:
- Campus Drive between Paint Branch Drive and Regents Drive (near the “M”)
- Regents Drive between the Geology Building service lot and the Clarence Mitchell Building
- The intersection of Union Lane and Campus Drive (near the Stamp Student Union)
- Alumni Drive between Union Drive and Championship near (in Lots 1 & Z)
- Lots C1/L connector road (near Turner Hall)
Parking Restrictions for Service and Delivery Vehicles: Parking is prohibited in all of the areas listed above, as well as, Campus Drive between Regents Drive and Union Lane.
Flaggers will maintain two-way traffic. See map for details.
Alumni Drive New Traffic Pattern – Starting on/about 8.10.24
Starting on or about Saturday, August 10, the Purple Line contractor will implement a permanent adjustment to the Alumni Drive traffic pattern in Lots 1 and Z. See the attached map for details. Use caution when traveling in the area.
Overnight Closures near Turner Hall – 8.4.24-8.7.24
From the evening of Sunday, August 4 through the morning of Wednesday, August 7, the Purple Line contractor will conduct overnight closures of the connector road and adjacent sidewalk between Lot C1 (near Turner Hall) and Lot L (near Reckord Armory). Lot C1 will also be closed. The closures will be in place from 8 p.m. to 6 a.m. for three nights (8/4 through 8/6). See the attached map for details and pedestrian detour.
Overnight Road Closures – 8.4.24-8.7.24
From the evening of Sunday, August 4 through the morning of Wednesday, August 7, the Purple Line contractor will conduct overnight paving with the following impacts:
Road & Lane Closures: The roads listed below will be impacted from 8 p.m. to 6 a.m. for three nights (8/4 through 8/6).
- Campus Drive will be closed between Paint Branch Drive and Regents Drive
- Regents Drive will be closed between the Geology Building service lot and the Clarence Mitchell Building
- The intersection of Union Lane and Campus Drive will be closed (near the Stamp Student Union)
- One lane of Alumni Drive (near Knight Hall) will be closed. Flaggers will maintain northbound and southbound traffic flow.
Campus Drive Service and Delivery Vehicle Restrictions: Campus Drive between Regents Drive and Union Lane is currently closed, with access for service and delivery vehicles only. During the overnight paving, it will also be inaccessible for service and delivery vehicles from 8 p.m. to 11 a.m. for three nights (8/4 through 8/6).
Emergency vehicles will have access to all impacted areas during the paving.
See the attached map for details and vehicle detour.
Lot HP Entrance Closure – 7.25.24-8.20.24
Starting on or about Thursday, July 25 through Tuesday, August 20, the Purple Line contractor will close the east entrance of Lot HP on Campus Drive, near H.J. Patterson Hall. Emergency, service, and delivery vehicles will utilize the west entrance, as can pedestrians. See the attached map for details and pedestrian detour routes.
Regents Drive Sidewalk Closure – 7.19.24-8.2.24
Starting on or about Friday, July 19 through Friday, August 2, the Purple Line contractor will close the sidewalks on the westside of Regents Drive between Fieldhouse Drive and Campus Drive, near the Geology Building. All Geology Building entrances will remain open. See map for details and pedestrian detour.
Lane Closure on Library Lane – 7.18.24-7.26.24
Starting on Thursday, July 18 through Friday, July 26, the Purple Line contractor will close the northbound lane of Library Lane near the University Health Center. The lane closure will occur daily from 6 a.m. to 4 p.m. Flaggers will direct traffic to maintain northbound and southbound traffic flow. See map for details.
Symons Hall Service Lot Closure – 7.15.24-7.28.24
Starting on or about Monday, July 15, the Purple Line contractor will close all vehicle access to the service lot behind Symons Hall for approximately two weeks. See the attached map for details.
Regents Drive Lane Closure – 6.27.24 & 6.28.24
On Thursday, June 27 and Friday, June 28, the Purple Line contractor will close the northbound lane of Regents Drive between Campus Drive and Fieldhouse Drive. The lane closure will occur from 6 a.m. to 3 p.m. Flaggers will direct traffic to maintain northbound and southbound traffic flow. See map for details.
Rossborough Lane Road Closures – 6.25.24-3.25.25
Starting on or about Tuesday, June 25, the Purple Line contractor will close Rossborough Lane west and east of Baltimore Avenue for approximately 9 months as follows:
- Rossborough Lane will be closed between Baltimore Avenue and Diamondback Drive (near Ritchie Coliseum). The portion of Rossborough Lane east of Diamondback Drive that is currently closed will reopen.
- Rossborough Lane west of Baltimore Avenue (near Turner Hall and Rossborough Inn) will close. Vehicles will exit Lot C1 to Regents Drive using the reopened connector road to Lot L.
See attached maps for vehicle and pedestrian detours.
HJ Patterson Loading Dock/Lot HP Closure – 6.19.24
On Wednesday, June 19 from 5 a.m. to 8 p.m., the Purple Line contractor will close all vehicle access to the HJ Patterson loading dock and Lot HP.
Due to the closure of Campus Drive near HJ Patterson through August 20, Lot HP is currently only accessible to authorized vehicles. Authorized vehicle access will resume by 8 pm on June 19.
See the attached map for the work location.
Road Closure at River Road – 6.13.24-8.25.24
Starting on or about Thursday, June 13 through Sunday, August 25, the Purple Line contractor will close vehicle access to Rivertech Court and Physics Ellipse from River Road in the Discovery District. Vehicles will need to access the Anacostia Building (American Center for Physics) from the south. Pedestrians will still be able to access the building from River Road. See attached maps for vehicle and pedestrian detours.
Symons Hall Campus Drive Entrance & Sidewalk Closure – 6.10.24-8.20.24
Starting on or about Monday, June 10, the Purple Line contractor will close the Campus Drive entrance of Symons Hall, and the adjacent sidewalk, for approximately 10 weeks. All other building entrances will remain open. The temporary access road to the parking lot behind Symons Hall will shift north, into the Campus Drive roadway. See map for details and pedestrian detour.
Regents Drive Lane Closures – 6.6.24
On Thursday, June 6, the Purple Line contractor will conduct lane closures on Regents Drive between Campus Drive and Fieldhouse Drive. The closures will occur from 6 a.m. to 1 p.m. Flaggers will direct traffic to maintain north and southbound traffic flow. See map for details.