Campus Construction Notices
Purple Line Construction Updates
Summary of Major Impacts - Spring 2025
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 this academic year than it was in the previous year. As minor construction continues in the campus core and major construction continues in other areas, watch for the following impacts this semester:
- Road Closures on Rossborough Lane (see maps):
- West of Baltimore Avenue the road is closed (near Turner Hall and Rossborough Inn)
- East of Baltimore Avenue, the road is closed to Diamondback Drive (near Ritchie Coliseum)
- There are ADA-compliant pedestrian detours
- Lane Closures on Baltimore Avenue at the Intersection of Rossborough Lane (see maps):
- Two lanes and one sidewalk of Baltimore Avenue are closed from Hotel Drive to Fraternity Row
- One lane of travel is open in each direction
- There is an ADA-compliant pedestrian detour
- Traffic Pattern Adjustment on Campus Drive East of Baltimore Avenue (see map):
- Temporary shift results in a tighter turn for motorists
- Stop signs have been added in both directions of travel (near the Leonardtown Apartments)
If you have questions or encounter issues while traveling around campus, including accessibility concerns, please contact purpleline@umd.edu.
Regents Drive Sidewalk Closure - 3.18.25-3.19.25
Starting on or about Tuesday, March 18, the Purple Line contractor will close the sidewalk on the east side of Regents Drive sidewalk between Campus Drive and Fieldhouse Drive (near the John S. Toll Physics Building) for approximately 2 days for construction activities. See the attached map for details and pedestrian detour.
Campus Dr. Lane Closures East of Baltimore Ave. - 3.17.25-8.29.25
Starting on or about Monday, March 17, through the end of August 2025, the Purple Line contractor will conduct periodic lane closures on Campus Drive between Baltimore Avenue and River Road (near the WMATA Metrorail station) from 8:30 a.m. to 3:30 p.m.
Flaggers will maintain traffic flow in both directions. See map for details.
Periodic Lane Closures in Core of Campus - 3.17.25-8.29.25
Starting on or about Monday, March 17, through the end of August 2025, the Purple Line contractor will conduct periodic lane closures on Campus Drive between Regents Drive (near Symons Hall) and Alumni Drive (in Lots 1/Z) from 8:30 a.m. to 4:30 p.m. Traffic will be maintained in both directions.
Watch for shifting construction activity and detour signs. See map for details.
Periodic Lane Closures near UMGC - 3.17.25-8.29.25
Starting on or about Monday, March 17, through the end of August 2025, the Purple Line contractor will conduct periodic lane closures from 8:30 a.m. to 3:30 p.m., at the following locations:
- Campus Drive between Presidential Drive and Adelphi Road (near UMGC)
- University Boulevard between Adelphi Road and Temple Street (near Graduate Hills Apartments)
One lane of travel will remain open at all locations. See map for details.
Baltimore Avenue Lane & Sidewalk Closures - 3.17.25-5.19.25
Starting on or about Monday, March 17, through Monday, May 19, the Purple Line contractor will close two lanes and one sidewalk of Baltimore Avenue from Hotel Drive to Fraternity Row to facilitate construction of the tracks across the roadway at the intersection of Rossborough Lane. One lane of travel will be open in each direction.
Allow additional time for travel through this area. See map for details and pedestrian detours.
Campus Drive Lane Closure - 3.13.25
On or about Thursday, March 13, the Purple Line contractor will close one westbound lane of Campus Drive between Adelphi Road and Presidential Drive (near UMGC), from 7:00 a.m. to 12:00 p.m., for construction activities. One lane of westbound travel will remain open. See map for details.
Union Drive Crosswalk & Lane Closure - 3.13.25
On or about Thursday, March 13, the Purple Line contractor will close the eastbound lane of Union Drive at Alumni Drive, and the adjacent crosswalk, from 7:00 a.m. to 12:00 p.m., for construction activities. Flaggers will maintain traffic flow in both directions. See map for details and pedestrian detour.
Alumni Drive Lane Closure - 3.12.25
On or about Wednesday, March 12, the Purple Line contractor will close the northbound lane of Alumni Drive south of Union Drive (near Knight Hall), from 6:00 a.m. to 8:00 a.m., for construction activities. Flaggers will maintain traffic flow in both directions. See map for details.
Lane Closure near Leonardtown Apartments - 3.10.25-3.14.25
Starting on or about Monday, March 10, the Purple Line contractor will close one lane of the connector road between Rossborough Lane and Yale Avenue (near the Leonardtown Apartments), from 8:30 a.m. to 3:30 p.m., for approximately 2 days. Flaggers will maintain traffic flow in both directions.
Additionally, 3 adjacent parking spaces in Lot K3 will be closed for approximately 5 days for related construction activities. See map for details.
Alumni Drive Partial Road Closure - 3.10.25-3.11.25
Starting on or about Monday, March 10, the Purple Line contractor will close a portion of Alumni Drive south of Union Drive (near Knight Hall), from 8:30 a.m. to 3:30 p.m., for approximately 2 days. See map for details and vehicle detour.
Lane Closures near UMGC - 3.10.25-3.14.25
Starting on or about Monday, March 10, the Purple Line contractor will close one lane of traffic from 8:30 a.m. to 3:30 p.m., for approximately 5 days, at the following locations:
- Campus Drive westbound between Presidential Drive and UMGC
- University Boulevard westbound between Adelphi Road and Temple Street
- University Boulevard eastbound between Tulane Drive and Campus Drive
One lane of traffic will remain open at all locations. Allow additional time for travel. See map for details.
Campus Drive Lane Closure - 3.7.25
On or about Friday, March 3, the Purple Line contractor will close one westbound lane of Campus Drive between Adelphi Road and Presidential Drive (near UMGC), from 8:30 a.m. to 3:30 p.m., for construction activities. One lane of westbound travel will remain open. See map for details.
Union Drive Crosswalk & Lane Closure - 3.6.25-3.10.25
Starting on or about Thursday, March 6, the Purple Line contractor will close the eastbound lane of Union Drive at Alumni Drive , and the adjacent crosswalk, from 8:30 a.m. to 3:30 p.m., for approximately 3 days, excluding the weekend. Flaggers will maintain traffic flow in both directions. See map for details and pedestrian detour.
Sidewalk Closure at Campus & Regents Intersection - 3.5.25-3.6.25
Starting on or about Wednesday, March 5 the Purple Line contractor will close the sidewalk northeast of the Campus Drive/Regents Drive intersection, from 6 a.m. to 8 a.m., for approximately 2 days.
The work zone will extend partially into the roadway but all lanes of travel will remain open. Drivers should proceed with caution when travelling through the intersection.
See map for details and pedestrian detour.
Campus Drive Traffic Pattern Adjustment - 3.4.25-8.29.25
Starting on or about March 4, the Purple Line contractor will adjust the traffic pattern on Campus Drive east of Baltimore Avenue (near the Leonardtown apartments) for approximately 6 months.
This temporary shift will result in a tighter turn for motorists, so stop signs will be added in both directions of travel. Allow additional time for travel through this area. See map for details.
Campus Drive Lane Closure - 3.3.25-3.14.25
Starting on or about Monday, March 3, the Purple Line contractor will close one eastbound lane of Campus Drive between Adelphi Road and Presidential Drive (near UMGC), from 8:30 a.m. to 3:30 p.m. for approximately 2 weeks. One lane of eastbound travel will remain open. See map for details.
Daytime Lane Closures - 2.24.25-2.28.25
Starting on or about Monday, February 24, the Purple Line contractor will perform daytime lane closures from 8:30 a.m. to 3:30 p.m. for approximately 1 week at the following locations:
- Campus Drive between University Boulevard and Adelphi Road (near the Graduate Hills Apartments)
- Campus Drive between the UMGC campus and the Campus Drive/Alumni Drive/Mowatt Lane traffic circle
- Rossborough Lane between Diamondback Drive and Yale Avenue
- Campus Drive between Baltimore Avenue and the Maryland Fire & Rescue Institute
Flaggers will maintain traffic flows. Allow extra time for travel through these areas. See maps for details.
Campus Drive Overnight Lane Closures - 2.17.25-2.25.25
Starting on or about Monday, February 17, the Purple Line contractor will be closing the eastbound lane of Campus Drive, near the Edward St. John Learning and Teaching Center, from 7 p.m. to 6 a.m. the following day, for approximately 1 week. Flaggers will maintain eastbound and westbound traffic. See map for details.
Campus Drive Crosswalk Closure - 1.31.25
On Friday, January 31, the Purple Line contractor will close the crosswalk on the east side of the Campus Drive/Regents Drive intersection, from approximately 7 a.m. to 1 p.m., for construction activities. See map for details and pedestrian detour.
Baltimore Avenue Lane & Sidewalk Closures - 1.27.25-3.28.25
The Purple Line contractor will continue conducting ongoing lane closures on Baltimore Avenue at the intersection of Rossborough Lane on weekdays from 8:30 a.m. to 3:30 p.m. through the end of March. At least one northbound lane and one southbound lane will be open at all times.
Additionally, the contractor will continue conducting alternating closures of the Baltimore Avenue sidewalks between Frat Row and Hotel Drive. As a reminder, the Baltimore Avenue crosswalk at Rossborough Lane is closed indefinitely.
Watch for shifting construction activity and allow for additional travel time. See maps for details and pedestrian detours.
Campus Drive Sidewalk Closures - 1.15.25-2.26.25
Starting on or about Wednesday, January 15, the Purple Line contractor will close the Campus Drive sidewalks between The University Baptist Church and the Mowatt Lane traffic circle as follows:
- North sidewalk will be closed starting on or about Wednesday, January 15, for approximately 2 weeks
- South sidewalk will be closed starting on or about Thursday, January 30, for approximately 3 weeks
- North sidewalk will be closed starting on or about Wednesday, February 19, for approximately 1 week
See maps for details and pedestrian detours.
Periodic Campus Lane Closures - 1.15.25-1.23.25
Starting on or about Wednesday, January 15, the Purple Line contractor will perform periodic lane closures from 7 a.m. to 5 p.m. for approximately 1 week in the locations listed below to complete underground testing. Flaggers and traffic control measures will be utilized to maintain traffic flow in both directions. See map for details.
- Campus Drive between Regents Drive (near Symons Hall) and the Benjamin Building
- Rossborough Lane east of Diamondback Drive
Campus Drive Lane Closure Near Metro Garage - 12.18.24-1.22.25
Starting on or about Wednesday, December 18, through January 22, the Purple Line contractor will close the eastbound lane of Campus Drive near the WMATA Metrorail garage between the underpass and River Road. Traffic signals will be used to control alternating eastbound and westbound traffic flow. The entrance to the Metrorail garage has been temporarily relocated. See map for details.
Periodic Campus Lane Closures - 12.16.24-1.7.25
Starting on or about Monday, December 16, the Purple Line contractor will perform periodic lane closures from 7 a.m. to 5 p.m. for approximately 3 weeks within the locations listed below. Flaggers will direct traffic to maintain traffic flow in both directions. See map for details.
- Campus Drive between Regents Drive (near Symons Hall) and Alumni Drive (in Lots 1/Z)
- Rossborough Lane east of Diamondback Drive
Baltimore Avenue Sidewalk Closures - 12.9.24-1.24.25
Starting on or about Monday, December 9, 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, December 9, through Friday, December 20
- West side of Baltimore Avenue will be closed Monday, December 23, through Friday, January 24
See maps for details and pedestrian detours.
Campus Crosswalk Striping - 12.4.24-12.13.24
Starting on or about Wednesday, December 4, the Purple Line contractor will perform crosswalk striping from 9 a.m. to 3 p.m. for approximately one week at the locations listed below. Flaggers will direct traffic. See map for details.
- Campus Drive/Regents Drive intersection (near Symons Hall and the Geology Building)
- Campus Drive/Union Lane intersection (near Stamp Student Union and St. Mary’s Hall)
- Symons Hall service lot entrance
Campus Drive Sidewalk & Bike Path Closure - 11.25.24-11.27.24
Starting on or about Monday, November 25, 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 - 10.21.24-1.24.25
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 for approximately 3 months. 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.