▁sp and rel ▁arch ▁design , ▁is ▁, ▁and ▁was ▁modified ▁in ▁ 1 9 3 5 ▁to ▁w iden ▁its ▁deck ▁from ▁ ▁to ▁the ▁current ▁. ▁The ▁structure ▁was ▁added ▁to ▁the ▁NR HP ▁on ▁December ▁ 1 7 , ▁ 1 9 9 9 . ▁ ▁The ▁second ▁bridge ▁listed ▁by ▁MD OT ▁is ▁the ▁crossing ▁of ▁the ▁Little ▁Mus k eg on ▁River ▁for ▁ 1 9 0 th ▁Avenue ▁in ▁southern ▁M ec osta ▁County . ▁Like ▁the ▁Pl aster ▁Creek ▁bridge , ▁this ▁structure ▁was ▁also ▁built ▁by ▁the ▁M SH D ▁under ▁the ▁Tr unk ▁Line ▁Act ▁of ▁ 1 9 1 3 . ▁Bu ilt ▁in ▁ 1 9 1 6 – 1 7 ▁the ▁, ▁, ▁concrete ▁through - g ir der ▁bridge ▁cost ▁around ▁$ 1 0 , 0 0 0 ▁( equ ivalent ▁to ▁$ ▁in ▁) ▁to ▁build . ▁It ▁was ▁initially ▁named ▁Tr unk ▁Line ▁Bridge ▁No . ▁ 6 1 . ▁The ▁span ▁is ▁the ▁oldest ▁concrete ▁gir der ▁bridge ▁designed ▁by ▁the ▁M SH D . ▁ ▁US   1 3 1 ▁followed ▁ 1 9 0 th ▁Avenue ▁over ▁the ▁river ▁until ▁a ▁real ignment ▁shift ed ▁the ▁highway ▁to ▁another ▁route ▁in ▁ 1 9 2 7 . ▁ ▁Exit ▁list ▁ ▁See ▁also ▁ ▁Business ▁routes ▁of ▁U . S . ▁Route ▁ 1 3 1 ▁ ▁Notes ▁ ▁References ▁ ▁External ▁links ▁▁ ▁US   1 3 1 ▁at ▁Michigan ▁High ways ▁ ▁US