▁State ▁Route ▁ 1 2 9 ▁over ▁the ▁Grande ▁Ron de ▁River , ▁about ▁ ▁south ▁of ▁An at one , ▁Washington ▁and ▁ ▁south west ▁of ▁As ot in . ▁ ▁It ▁is ▁ ▁long ▁in ▁total , ▁with ▁a ▁center ▁susp ended ▁span ▁ ▁long ▁between ▁two ▁ ▁cant ile ver ▁sp ans . ▁ ▁On ▁each ▁side ▁is ▁a ▁ ▁rein for ced ▁concrete ▁T - be am ▁approach ▁span ▁and ▁a ▁steel ▁anchor ▁arm ▁span ▁ ▁long . ▁ ▁It ▁was ▁built ▁for ▁the ▁Washington ▁State ▁Highway ▁Department ▁by ▁contract or ▁Henry ▁H ag man ▁using ▁steel ▁fabric ated ▁by ▁the ▁Cl inton ▁Bridge ▁Company ▁of ▁Cl inton , ▁Iowa . ▁ ▁R . ▁W . ▁Fin ke ▁was ▁the ▁bridge ▁engineer . ▁ ▁Its ▁NR HP ▁nom ination ▁states : ▁Although ▁the ▁bridge ▁is ▁lack ing ▁over t ▁art istic ▁features , ▁its ▁design ▁is ▁particularly ▁appropriate ▁to ▁the ▁unique ▁character ▁of ▁the ▁location . ▁The ▁simple ▁horizontal ▁lines ▁of ▁the ▁bridge ▁complement ▁the ▁bas alt ▁out cro ps ▁rising ▁ab rupt ly ▁in ▁layer ed ▁form ations ▁from ▁the ▁valley ▁floor . ▁The ▁bridge ' s ▁configuration ▁and ▁type ▁of ▁construction ▁appear ▁to ▁have ▁been ▁an ▁excellent ▁engineering ▁solution ▁for ▁this ▁particular ▁river ▁crossing . ▁ ▁References ▁ ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Washington ▁( state ) ▁Category : B rid ges ▁completed ▁in ▁ 1 9 4 1 ▁Category : As ot in ▁County , ▁Washington ▁Category : Ro ad ▁brid ges ▁in