I was reading about The Battle of Trafalgar and found this interesting section about the consequences:
Napoleon instituted a large-scale shipbuilding programme that had produced a fleet of 80 ships of the line at the time of his fall from power in 1814, with more under construction. In comparison, Britain had 99 ships of the line in active commission in 1814, and this was close to the maximum that could be supported. Given a few more years, the French could have realised their plans to commission 150 ships of the line and again challenge the Royal Navy, compensating for the inferiority of their crews with sheer numbers.
It has a single citation, but for such a large paragraph it's hard to know exactly what details are vouched for. Anyway this raises a few questions.
Where were these 80 French Ships of the Line constructed (what port or harbor)?
Why did the British Navy not raid and destroy them?
AFAIK, the British Navy still roamed with impunity all throughout the Napoleonic Era, even into the Baltic Sea during the Russo-Swedish War and in fact afterwards as well, even stationing ships in Swedish ports despite Sweden being a French Ally on paper. So if they could sail anywhere and not be blockaded from a chokepoint like Denmark guarding the Baltic, then I don't see how or why Britain would not find this French armada under construction and simply raid the port.