▁destroyed ▁in ▁the ▁Pacific ▁North west ▁flo od ▁of ▁ 1 9 6 4 . ▁The ▁current ▁bridge ▁opened ▁in ▁ 1 9 6 6 . ▁ ▁In ▁ 1 9 7 5 , ▁l ouver ed ▁windows ▁were ▁added ▁to ▁the ▁south ▁side ▁of ▁the ▁structure ▁to ▁improve ▁the ▁bridge ' s ▁interior ▁light . ▁ ▁The ▁bridge ▁structure ▁was ▁strength ened ▁and ▁the ▁exterior ▁rep a ired ▁in ▁ 1 9 9 2 . ▁ ▁In ▁ 2 0 0 2 , ▁a ▁new ▁roof ▁was ▁installed ▁as ▁part ▁of ▁a ▁general ▁bridge ▁renov ation ▁project . ▁ ▁Because ▁of ▁its ▁unique ▁scen ic ▁beauty ▁and ▁its ▁importance ▁to ▁Oregon ' s ▁transport ation ▁history , ▁the ▁Bel kn ap ▁Bridge ▁was ▁listed ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁ 1 9 7 9 . ▁ ▁Today , ▁Lane ▁County ' s ▁Engineering ▁Division ▁maintain s ▁the ▁covered ▁brid ges ▁that ▁are ▁open ▁to ▁traffic , ▁including ▁the ▁Bel kn ap ▁Bridge . ▁ ▁Str ucture ▁▁ ▁The ▁current ▁Bel kn ap ▁Bridge ▁was ▁designed ▁for ▁Lane ▁County ▁by ▁the ▁Oregon ▁Bridge ▁Corporation ▁of ▁Spring field , ▁Oregon , ▁as ▁a ▁classic ▁covered ▁bridge . ▁ ▁It ▁is ▁ ▁long , ▁containing ▁a ▁single ▁span ▁supported ▁by ▁a ▁How e ▁tr uss ▁system . ▁ ▁Its ▁maximum ▁carrying ▁capacity ▁of ▁ ▁is ▁to ▁accommod ate ▁logging ▁tr uck s . ▁ ▁The ▁bridge ▁rest s ▁on ▁two ▁concrete ▁foundation ▁pi ers . ▁Its ▁wooden ▁floor ▁pl anks ▁and ▁sh