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I-55 Northbound
From Illinois: I-55/70/64 Westbound
Follow the signs for I-64 (Hwy 40) westbound.
Merge on to I-170 North.
Take the Olive Street exit. At the end of the ramp, turn left on to Olive (west).
Proceed west on Olive Street to Warson Rd.
Turn right on to Warson Rd (north).
Turn left into the Donald Danforth Plant Science Center.

I-270 Northbound
Take I-270 North to Olive Street exit. At the end of the ramp, turn right on to Olive (east).
Proceed east on Olive Street to Warson Rd.
Turn left on to Warson Rd (north).
Turn left into the Donald Danforth Plant Science Center. 

I-270 Southbound
Take I-270 South to Olive Street exit.  Turn left (east) on to Olive
Proceed east on Olive Street to Warson Rd.
Turn left on to Warson Rd (north).
Turn left into the Donald Danforth Plant Science Center.

I-170 Northbound
Take I-170 North to Olive Street.
Turn left on to Olive (west).
Proceed west on Olive Street to Warson Road.
Turn right on to Warson Rd (north).
Turn left into the Donald Danforth Plant Science Center.

I-170 Southbound
Take I-170 South to Olive Street.
Turn right on to Olive (west).
Proceed west on Olive Street to Warson Road.
Turn right on to Warson Rd (north).
Turn left into the Donald Danforth Plant Science Center.

I-44 East or Westbound, I-255 Westbound
Take I-44 (east or westbound) to I-270 North and follow directions for I-270 northbound above.
I-255 West becomes I-270 North at I-55.  Follow directions for I-270 northbound above. 

 I-70 East or West bound
Take I-70 (east or westbound) to either I-270 South or I-170 South and follow directions above. 

I-64 East or Westbound
Take I-64 (either east or westbound) to either I-270 N or I-170N and follow directions above.  

For questions, please contact Kathleen Mackey by email at kmackey@danforthcenter.org or by phone at 314-587-1203.