What kind of bridge is this?

Factual Questions
1

This is the Langlois (or Van Gogh) Bridge, near Arles France. What is the name for this type of bridge?

2

it is a drawbridge lifted by a beam

3

Here’s a modern replica of Van Gogh’s bridge (Le Pont de l’Anglois): Arles - Provence - France - Le Pont du Langlois ... | Flickr

See also: Bascule bridge - Wikipedia

4

A double counterweight drawbridge.

5

Here’s my photo of the same bridge (it’s a couple of hours’ walk from Arles).