The Avre () is a river in Picardy, France, and is the principal tributary, from the left side, of the River Somme. At 66 kilometres long, it drains a relatively important basin of 1,150 km² but only flows at best 5,1 m³/s near its confluence at

Longueau Longueau (; pcd, Londjeu) is a commune in the Somme department in Hauts-de-France in northern France. Geography Longueau is situated southeast of Amiens, a suburb just by the airport, on the N29 road. Longueau station has rail connections to ...

.L'Avre sur le site de l'agence de l'eau Artois-Picardie.

Its principal tributaries are: the Noye, joining at Boves, the Trois Doms joining at Pierrepont-sur-Avre, the Brache joining at Braches and the Luce at Berteaucourt-les-Thennes.

References

Rivers of France Rivers of Somme (department) Rivers of Hauts-de-France {{France-river-stub