Site/Civil Engineering

Charles P. Johnson & Associates, Inc.
Charles P. Johnson & Associates, Inc. (CPJ) is a full-service civil engineering firm providing the highest quality Land Planning, Civil and Environmental Engineering, and Surveying Services.
1751 Elton Road
Suite 300
Silver Spring, MD 20903
10010 Junction Drive
Suite 201-S
Annapolis Junction, MD 20701
2101 Gaither Road
Suite 340
Rockville, MD 20850
4601 Presidents Drive
Suite 365
Lanham, Maryland 20706