File:Reinforced concrete culverts in Durham. Crimdon Dene Culvert, looking east. Concrete and constructional engineering. Vol 17, No 2, London, February 1922. p. 83.jpg
Reinforced_concrete_culverts_in_Durham._Crimdon_Dene_Culvert,_looking_east._Concrete_and_constructional_engineering._Vol_17,_No_2,_London,_February_1922._p._83.jpg (529 × 372 pixels, file size: 126 KB, MIME type: image/jpeg)