May be helpfull, hope you know Russian

here you can find information about equipment of the Russian army (including sappers) of the Napoleonic Wars:
(Russian) http://adjudant.ru/table/Rus_Army_1812_4.asp

(Russian) http://militera.lib.ru/h/sb_istoria_russkoy_armii/56.html

(Russian) https://ru.wikipedia.org/wiki/%D0%A3%D0%BD%D0%B8%D1%84%D0%BE%D1%80%D0%BC%D0%B0_%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%B9_%D0%B0%D1%80%D0%BC%D0%B8%D0%B8#%D0%90%D1%80%D1%82%D0%B8%D0%BB%D0%BB%D0%B5%D1%80%D0%B8%D1%8F_%D0%B8_%D0%B8%D0%BD%D0%B6%D0%B5%D0%BD%D0%B5%D1%80%D0%BD%D1%8B%D0%B5_%D1%87%D0%B0%D1%81%D1%82%D0%B8

(Russian, the Leib-Garde Sapper Battalion, 1812-1815) http://saper.isnet.ru/history/l-g-batalion.html

There are many usefull books in English and Russian about the Russian army that contain information about sappers.
I think you can find much information on this topic, but you probably need to download or buy some books then. When you find information about this, look at the sources.
You may find something interesting.

Best regards, Andreas