from I-5 Northbound:

• At the I-5 / I-405 split
  (just after the Terwilliger curves, before the Markham Bridge)
• exit from left hand lane onto exit 299B
  ("City Center", "Beaverton", "I-405", "Hwy 26", "West", "Zoo").
• Stay in the lefthand lane -- immediately exit at 1A
  ("Naito Parkway", "National Historic District", "Japanese American Historic Plaza").
• This becomes Harbor Way.
  Before it becomes Clay Street, turn right/north at the second light, onto Naito Parkway
• Drive north on Naito Parkway 12 blocks to Oak Street.
• Turn left on Oak, go seven blocks to Broadway.
• Turn left on Broadway. (Closest parking garages are on Oak and Alder (Alder is two blocks south on Broadway)
• Go one block to Stark Street.
• Turn left on Stark Street. (street parking available on Stark)

If you miss the 1A exit, exit 1B (4th Ave) will work as well. The exit puts you on 4th Ave. Go about 20 blocks, turn left on Oak Street. Go three blocks to Broadway. Turn left on Stark Avenue. (park on Oak or Stark, office entrance is on Stark Street)
 

I-5 Southbound:

• Take exit 300B the first exit (1/4 mile) after the I-84 Junction (exit 301)
  ("OMSI", "Oregon City", "Hwy 26", "Hwy 99E", "Central Eastside Industrial District", "Milwaukie").
• Stay in the right hand lane, and take the righthand split
  ("Morrison St.", "City Center").
• You are now on the Morrison Bridge, which turns into Washington St.
• Turn right on 4th Avenue, two blocks off the bridge
• Go two blocks to Oak Street.
• Turn left on Oak, go three blocks to Broadway.
• Turn left on Broadway. (Closest parking garages are on Oak and Alder (Alder is two blocks south on Broadway)
• Go one block to Stark Street.
• Turn left on Stark Street. (street parking available on Stark)

From I-84:

• Follow I-84 to I-5.
• Take exit 300B the first exit (1/4 mile) after the I-84 Junction (exit 301)
  ("OMSI", "Oregon City", "Hwy 26", "Hwy 99E", "Central Eastside Industrial District", "Milwaukie").
• Stay in the right hand lane, and take the right hand split
  ("Morrison St.", "City Center").
• You are now on the Morrison Bridge, which turns into Washington St.
• Turn right on 4th Avenue, two blocks off the bridge
• Go two blocks to Oak Street.
• Turn left on Oak, go seven blocks to Broadway.
• Turn left on Broadway. (Closest parking garages are on Oak and Alder (Alder is two blocks south on Broadway)
• Go one block to Stark Street.
• Turn left on Stark Street. (street parking available on Stark)

From Hwy. 26:

• Take the City Center exit, which becomes Market Street.
• Go nine blocks to 4th Avenue. Turn left on 4th Avenue.
• Go 12 blocks to Oak Street. Turn left on Oak Street.
• Go three blocks to Broadway. (parking garages on Oak)
• Turn left on Broadway.
• Go one block to Stark Street.
• Turn left on Stark Street. (street parking available on Stark)

Parking:
After 6:00 pm street parking is free. There are two garages located on Oak, between 5th Avenue and Broadway. Daytime charges range from 95 cents to $1.50 an hour for the first four hours, $1.50+ an hour after four hours, $10-$15 for a full day. Evening charges are usually between $1.50 and $5.00 for the entire evening.