 The Third Street Bridge is the major crossing of the creek , carrying T Third Street light rail line and Third Street . It is a bascule @-@ type drawbridge . The Port of San Francisco extended Illinois Street across Islais Creek in 2006 to relieve traffic for Third Street . This crossing also uses a bascule bridge . 
 The Third Street Bridge <a href='drop_aux' title='1'><mark>is</mark></a>the major crossing of the creek , carrying T Third Street light rail line and Third Street . It <a href='drop_aux' title='2'><mark>is</mark></a>a bascule @-@ type drawbridge . The Port of San Francisco extended Illinois Street across Islais Creek in 2006 to relieve traffic for Third Street . This crossing also <a href='uninflect' title='3'><mark>uses</mark></a> a bascule bridge . 
Da Third Street Bridge the major crossing of the creek , carrying T Third Street light rail line and Third Street . It a bascule @-@ type drawbridge . The Port of San Francisco extended Illinois Street across Islais Creek in 2006 to relieve traffic for Third Street . This crossing also use a bascule bridge .