The Hub City Grand Prix kart pits will be in the parking lot of the Centralia College campus at the intersection of Pear Street and Oak Street.  Motards will pit across the street on Pear and Washington.

From Seattle on I-5
 

Take the MELLEN ST / WA-507 N exit- EXIT 81.
Turn LEFT onto MELLEN ST / WA-507. Continue to follow WA-507.
Turn LEFT onto W CHERRY ST.
Stay STRAIGHT to go onto S OAK ST.
 

From Portland on I-5

Take the MELLEN ST / WA-507 N exit- EXIT 81.
Turn RIGHT onto MELLEN ST / WA-507. Continue to follow WA-507.
Turn LEFT onto W CHERRY ST.
Stay STRAIGHT to go onto S OAK ST.