Digitised version of National Archive file S.2/241. Drawings of the bridge across the Blesbokspruit, Heidelberg. "Situasie: Doorsnede over de lengte-as" (Location: Section over the longitudinal axis). Signed by "S.W. Wierda, Hoofd van Publieke Werken"
Note on plan: "Behoort bij bestek no 395"