JOINT BASE SAN ANTONIO-FORT SAM HOUSTON, Texas –
Joint Base San Antonio–Fort Sam Houston will support the San Antonio Marathon on Sunday, Dec. 7, 2025, with multiple road closures, detours and traffic delays throughout the installation to ensure runner safety.
Road closures begin at 7:30 a.m., with the first runners expected to enter through the Quadrangle Gate at approximately 8 a.m. The last runners will exit the installation at the North New Braunfels Gate around 1:50 p.m., and all roads are expected to reopen by 2 p.m.
Security Forces personnel will be positioned across the course to help with directing traffic, assisting residents and visitors, and responding to any emergencies. Please plan for additional travel time before 2 p.m.
Gate closures:
- Quadrangle Gate (Grayson St.) from 8 to 10:50 a.m.
- West New Braunfels Gate (Eleanor Ave.) from 8:05 to 10:20 a.m.
- Harry Wurzbach West Gate (Old Austin Rd.) from 9 a.m. to 1:10 p.m.
- North New Braunfels Gate from 8:05 a.m. to 1:50 p.m.; and
- Harry Wurzbach East Gate from 6 a.m. to 2 p.m.
Road closures on the installation include Stanley Road and Dickman Road, which will have no thru traffic. Schofield Road at Dickman and Stanley will be open for resident crossings only, with the best crossing times before 9 a.m. or after 11 a.m. All non-emergency crossings are at officer discretion.
New Braunfels Avenue at Eleanor, Dickman, Stanley and Hood will be closed, as will Wilson Road at Liscom and Staff Road. Liscom Road and Staff Post Road will be closed; drivers should use Soap Suds Road to access Wilson Gate. The U.S. Army North West Parking Lot will also be closed.
Gates open for residents and vehicle access include Scott Gate, Walters Gate and Winans Gate, which will conduct routine operations. Gorgas Circle will function as exit-only beginning at 7:30 a.m. Wilson Gate will be open for inbound and outbound traffic from 7:30 a.m. to 2 p.m. Harry Wurzbach East Gate will remain closed during the run.
For more information, contact 502d Security Forces at 210-221-2244.