This was published in 1821, so it won't help with your first one - but at least there is info on this one

From the
Medallic History of Napoleon http://www.archive.org/details/meda...storyo00mill117. Plate XVIII. napoleo imperator et rex. an ii.
MDCccv. Laureated head. Underneath, andrieu f.
Reverse. pontem rhodani feliciore situ restituit.
*' He rebuilds the bridge over the Rhone in a more eligible situation."
View of a bridge ; on one side, part of the city of Avignon and the pa-
lace of the Popes ; on the other side, part of the town of Villeneuve.
At the foot of the bridge is a trophy in honour of the Emperor ; Victory,
hovering in the air, bears a palm-branch, and points to the new
bridge, andrieu f. Exergue, j. b. champagni primario regim.
INT. ADMINISTRO. M. A. BOURDON VALCL. PRAEFECTO. "J. B.
Champagny, Minister of the Interior. M. A. Bourdon, Prefect of
Vaucluse."
The bridge over the Rhone, uniting the two cities of Avignon and
Villeneuve, and the two departments of Vaucluse and of the Gard, had
been carried away by the violence of the river. It was rebuilt in a more
ehgible situation in 1805 ; on which occasion the present medal was en-
graved by order of the inhabitants of Avignon.