Black River Crossing - Bridge 390.2 - Black Rock, AR, MP 389.9 - Memphis Subdivision Black River Bridge at Black Rock, AR. Photograph taken 4/10/2004. Edit 1/31/2024: Steel portion of bridge consists of one 96'-0" through plate girder (TPG), two 94'-0" through plate girder (TPG), one 106'-10" through plate girder (TPG) and one 74'-3" through plate girder (TPG). Steel bridges total length is 465'-1". Bridges were fabricated and erected in 1958. Added bridge number, mile post, lengths, bridge types, years fabricated and erected. MKD