Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,376 pages of information and 211,456 images on early companies, their products and the people who designed and built them.
Stanislav Valerianovich Kerbedz, Stanisław Kierbedź, Станислав Валерианович Кербедз, Lithuanian: Stanislovas Kerbedis; 1810-1899) was a Polish-Russian engineer and military officer. He served in the Imperial Russian Army with the rank of Major General. He designed and supervised the construction of dozens of bridges, railway lines, ports and other projects in Central and Eastern Europe.
For more information, see Wikipedia entry
Information on the Kerbedz-designed Lieutenant Schmidt Bridge in St Petersburg (named in 1850-55 Blagoveshchensky, in 1855-1918 Nikolaevsky) here and here. Started in 1843, it was the first permanent bridge built over the Bolshaya Neva River. In the 1930s it was replaced by the present steel bridge, but retaining the original railings.