Four Tower Bridge along the Schuylkill River, 8 miles from Philadelphia downtown, with ASTM building next door (behind the trees), at the junction of I-76 & I-476.

Personalized directions
from Google™ Maps

Driving Directions

From Philadelphia International Airport: Take I-95 South to I-476 North. Follow I-476 North to Exit 16A (Conshohocken/ Route 23). Turn right at the light onto Matson Ford Road. Turn right at light onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.

From New York City and Northeast: Take the New Jersey Turnpike to Exit 6 connecting to Pennsylvania Turnpike. Take Pennsylvania Turnpike to Exit 25A (I-476/ Mid-County). Take I-476 South for 4 miles to Exit 16A (Conshohocken/ Route 23). Turn right at the light onto Matson Ford Road. Then go two lights and turn right onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.

From Delaware, Baltimore, Washington DC, and South: Take I-95 North to I-476 North. Follow I-476 North to Exit 16A (Conshohocken/ Route 23). Turn right at the light onto Matson Ford Road. Turn right at light onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.

From Pittsburgh, Harrisburg, and West: Take the Pennsylvania Turnpike to Exit 24 (Valley Forge). Stay on I-76 East to Exit 331B (Conshohocken). Turn right at the light onto Matson Ford Road. Turn right onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.

From Philadelphia, South Jersey, and East: Follow I-76 West (Schuykill Expressway) to Exit 332 (Conshohocken). Turn right at light onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.

From Wilkes-Barre, Allentown, Scranton, Poconos, and Northeastern PA: Take the Northeast Extension of the Pennsylvania Turnpike (Route 9) South to Exit 25A (I-476 South/ Mid-County). Take I-476 South to exit 16A (Conshohocken). Turn right at the light onto Matson Ford Road. Turn right at second light onto Front Street (Rt. 23 East). Follow road around to left at Mobil Station. Philadelphia Marriott West will be on your left. At first light, turn left onto Barr Harbor Drive. Turn right into Four Tower Bridge (first garage on right), just passed ASTM Headquarters.