Currently, The crossing at the tracks (D Street Crossing) is closed for repairs.
You can still use the Yosemite Exit, then Follow 16th down to G Street, turn Left, over the tracks and turn Left again onto 15th street. Where 15th meets B Street, is Stratford and Evans. Turn in at the iron gates and the Hall is on the Left. Note: MLK (187B) is NOT a friendly exit during high traffic times. Use the Yosemite exit and be happy!
Skip the Yosemite Exit and use the next 186C Exit and then Follow 16th down to G Street, turn Left, over the tracks and turn Left again onto 15th street. Where 15th meets B Street, is Stratford and Evans. Turn in at the iron gates and the Hall is on the Left.