San Antonio (Tex.)Hugman, Robert Harvey Harold, 1902-1980 (architect)City of San Antonio and Improvement District No. 15 (client)undatedRobert H. H. Hugman's San Antonio River Walk: flood plain map showing drainage for the City of San Antonio. Prepared for the City of San Antonio and Improvement District No. 15. Attribution and client derived from associated drawings in the set.utlarch:d065a212-1ce8-4fd0-8816-8b38ef999d1bEnglishhttps://creativecommons.org/publicdomain/mark/1.0/Robert H. H. Hugman drawings36 3/4 inches high x 29 inches wideDrainageFloodplainsSan Antonio River (Tex.)Paseo del Rio (San Antonio, Tex.)Road map, Bexar County, Texas annotated to show flood plainstill imageMaps