Text from official news release:
Fairfax County Police Officers from the Sully District Station will conduct a sobriety checkpoint to deter and apprehend intoxicated drivers from 11 p.m. Friday, July 29 to 2:00 a.m. Saturday. All motorists will be stopped and drivers will be checked to assure that their abilities to drive have not been impaired by alcohol or drugs.
Link to official news release:
http://www.fairfaxcounty.gov/ps/police/reports/Reports2005/072805dwicheckpointsul.htm
I live in the Sully district. This checkpoint will likely be somewhere along rt. 28 or rt. 29.
If anyone spots it give a post. Thanks.