Route nationale 94

Route nationale 94 was a major national highway in southeastern France, connecting the city of Grenoble in the Isère department to Gap in the Hautes-Alpes. For much of its history, it served as a vital artery through the French Alps, linking the Dauphiné region with the upper Durance valley. Its route traversed significant alpine terrain, including the Col de la Croix Haute, before being largely reclassified as part of the Route départementale 1075 following a 2006 decommissioning.

History

The road's origins trace back to the early 19th century, with its formal establishment as a *route nationale* occurring by the ordinance of 1824. It was developed as part of Napoleon I's broader initiatives to improve France's road network for military and economic purposes, facilitating movement across the Alps. For nearly two centuries, it was the primary road link between Grenoble and Gap, playing a crucial role during events like the Second World War and the growth of winter sports in resorts like Serre Chevalier. The construction of the A51 autoroute and the upgrade of the Route nationale 85 (the modern Route Napoléon) gradually reduced its strategic importance. In the major road reform of 2006, the highway was decommissioned and transferred to the departments of Isère and Hautes-Alpes, becoming primarily the Route départementale 1075.

Route description

Beginning in the urban area of Grenoble, near the confluence of the Isère and Drac rivers, the road headed southeast through the subalpine valley of the Drac. It passed through towns such as Vizille, known for its château linked to the French Revolution, and Le Bourg-d'Oisans, the gateway to the Alpe d'Huez ski resort and the Romanche valley. The most significant topographical feature was the ascent to the Col de la Croix Haute at an elevation of 1,179 meters, a pass separating the Dauphiné Alps from the Dévoluy massif. Descending into the Hautes-Alpes, the route followed the valley of the Durance river, passing through La Mure and Corps before reaching its terminus in the prefecture of Gap.

Major junctions

From its northwestern terminus in Grenoble, the road intersected with the former Route nationale 75 and the Route nationale 91. Key junctions along its path included connections to Route départementale 1091 towards Briançon and the Col du Lautaret, and Route départementale 937 at Le Monêtier-les-Bains in the Serre Chevalier valley. In the Dévoluy region, it met Route départementale 937 heading towards Veynes and Sisteron. Upon approaching Gap, it connected with the major north-south axis of the Route nationale 85 (the historic Route Napoléon) and the eastern route of the Route départementale 994 leading towards Embrun and the Col de Vars.

Gallery

* The road winding through the Drac valley near La Mure. * The Col de la Croix Haute pass in winter conditions. * The historic town center of Gap, showing the former route's entrance. * A viaduct on the route near Corps, overlooking the Durance valley.

Related routes

The corridor of the former Route nationale 94 is now primarily served by the Route départementale 1075. It is paralleled by the A51 autoroute for the section between Grenoble and Sisteron. Historically and geographically, it connects to several other significant alpine routes, including the Route nationale 91 to Briançon, the Route nationale 85 (Route Napoléon) from Golfe-Juan to Gap, and the Route des Grandes Alpes. The nearby Col du Lautaret pass is served by the Route départementale 1091, a key link to the Col du Galibier and the Maurienne valley.

Category:Transport in Isère Category:Transport in Hautes-Alpes Category:Former routes nationales in France