▁sp ur ▁route ▁serving ▁Key port . ▁SR   3 0 8 ▁was ▁established ▁in ▁ 1 9 7 1 ▁along ▁the ▁old ▁route ▁of ▁SR   3 0 3   Sp ur ▁and ▁was ▁extended ▁in ▁ 1 9 9 1 ▁to ▁the ▁SR   3 ▁fre ew ay ▁after ▁SR   3 0 3 ▁was ▁re - rout ed ▁onto ▁a ▁new ▁fre ew ay ▁in ▁Silver dale . ▁ ▁Route ▁description ▁ ▁SR   3 0 8 ▁begins ▁as ▁Lu oto ▁Road ▁at ▁a ▁diam ond ▁inter change ▁with ▁SR   3 ▁east ▁of ▁Naval ▁Base ▁K its ap ▁at ▁Bang or . ▁The ▁highway ▁travel s ▁east ▁through ▁wood ed ▁land , ▁intersect ing ▁several ▁minor ▁roads ▁until ▁the ▁road way ▁turns ▁n ortheast ▁and ▁cross es ▁over ▁Liber ty ▁Bay ▁into ▁the ▁un in cor por ated ▁community ▁of ▁Key port . ▁Within ▁Key port , ▁SR   3 0 8 ▁passes ▁the ▁Naval ▁Under se a ▁Museum ▁and ▁serves ▁as ▁the ▁main ▁thorough fare ▁through ▁the ▁community ▁before ▁it ▁ends ▁at ▁the ▁main ▁entrance ▁to ▁the ▁Naval ▁Under se a ▁War fare ▁Center , ▁continu ing ▁east ▁as ▁St rom ▁Avenue ▁into ▁the ▁base . ▁ ▁Every ▁year , ▁the ▁Washington ▁State ▁Department ▁of ▁Transport ation ▁( W SD OT ) ▁conduct s ▁a ▁series ▁of ▁surve ys ▁on ▁its ▁high ways ▁in ▁the ▁state ▁to ▁measure ▁traffic ▁volume . ▁This ▁is ▁expressed ▁in ▁terms ▁of ▁average ▁annual ▁daily ▁traffic ▁( A AD T ), ▁which ▁is