To find who built the other bridges and when they were built, we`d have to obtain records for the XXI Corps and maybe the XV Corps and it looks like the 1150 Engineer Combat Group that was in support of 44th Infantry Div in Mannheim & then the 63rd Inf Div after march 28/29. The 263rd Engineer C Bn, organic to the 63rd Inf Div did not build any of the bridges across the Nekar before 1 April.
There were 2 infantry foot bridges & a Ferry at Landenburg. The ferry was operated by the 289th Eng Combat Bn. In the operations reports of the 263rd Eng, an M2 Treadway bridge was completed at 2400 hrs 29/30 March but does not give its location, but it would have Mannheim or near Landenberg, not Heidelburg. The first and only bridge that i can find built on or before 1 April in Heidelburg itself was the Class 40 reinforced Heavy Ponton built by Co B, 555th EHPB.
