Upon Carbonnier's death in 1836, Jean Antoine Maurice (aka Moris Gugovich Destrem), a Russian military engineer of French origin, revised the plan for a new fort.

Still, it played a role in the Crimean War when it protected the Russian naval base in Kronstadt against attempts by the Royal Navy and French fleets.

In the summer of 1855, an Anglo-French fleet under the command of Vice-Admiral Dundas tried to conduct minesweeping raids using small steamboats.

Because the approach of the fleet within the range of the guns of coastal batteries and the forts would make sweeping procedures even more hazardous, Dundas gave up on his objective of attacking Kronstadt.

[3] Danylo Zabolotny, Mikhail Gavrilovich Tartakovsky, and Nikolai Mikhailovich Berestnev were the three researchers who arrived there in 1898 to oversee the work.

[4] In the following years, the laboratory is reported to have worked also on the development of serums against cholera, tetanus, typhus, scarlatina, and a series of Staphylococcus and Streptococcus infections.

In 2007, the administration of the fort announced its intention to seek investors for the proposed renovation project estimated at $43 million.

[5] From 2005 to 2010, the Saint Petersburg Dam navigation floodgate for the main shipping channel of the Gulf of Finland was being constructed less than a mile from Fort Alexander.

A new pathway for the shipping channel required extensive dredging in waters in the vicinity of Fort Alexander.

Serious concerns were raised on the negative impact of dredging efforts and expected increase in wave disturbance from passerby ships on the integrity of the foundation at Fort Alexander.