A77 autoroute

The A77 autoroute is a motorway in central France. The road starts at the hamlet of Rosiers in Seine-et-Marne and finishes to the south of Nevers in Nièvre. It is also known as the l'Arbre - the motorway of the Tree.
It has been designed to minimise its effect on the environment. Each of the rest areas bears the name of a species.
The road has been integrated into the landscape helped by zoologists to allow the passage of the animals from one side of the road to the other, as in the forest of Montargis. This added to the cost of construction.

Rosiers to Cosne-Cours-sur-Loire

The motorway is managed by the company the Autoroute Paris-Rhin-Rhône. It is a toll road with 2x2 lanes and totals.

Before 1999: The A77 was formed by re-numbering an old motorway connection to the A6 autoroute. The road was the upgraded N7 to Dordives. The toll road follows the valley of the Loing.
1999: Opening of the Dordives - Briare section of
2000: Opening of the Briare - Cosne-Cours-sur-Loire section of
2009: Opening of the junction with the A19 autoroute.

Cosne-sur-Loire to Nevers - south

The motorway is managed by the département of Nièvre. It is a free motorway with 2x2 lanes.

From 1992 to 2004: Phased opening of the section Cosne to Nevers-South

Nevers - south to Moulins

Plans are to extend the motorway to Moulins, with sections already under construction on the existing RN7. The by-pass of Moulins and Villeneuve-sur-Allier has already been completed to autoroute standard. As of December 2022, the plans have not been completed.