The N 15 was a trunk road (

Route Nationale A ''route nationale'', or simply ''nationale'', is a class of trunk road in France. They are important roads of national significance which cross broad portions of the French territory, in contrast to departmental or communal roads which serve m ...

) in

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...

Route

The RN 15 links the A13 to

Le Havre Le Havre (, ; nrf, Lé Hâvre ) is a port city in the Seine-Maritime department in the Normandy region of northern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux, very ...

via Rouen and

Yvetot Yvetot () is a commune in the Seine-Maritime department in the Normandy region in northern France. It is the capital of the Caux region. History The name Yvetot comes from the Germanic ''Yvo'' and the Old Norse ''-topt''. Therefore, Yvetot mean ...

. The RN 15 originates at junction 14 on the

A13 autoroute Autoroute 13, or ''L'Autoroute de Normandie'' links Paris to Caen, Calvados. The motorway starts in Paris at the Porte d'Auteuil, a former gate of the Paris walls, and ends at Mondeville's Mondeville 2 (Porte de Paris) exchange junction on th ...

in the

Yvelines Yvelines () is a department in the western part of the Île-de-France region in Northern France. In 2019, it had a population of 1,448,207.département In the administrative divisions of France, the department (french: département, ) is one of the three levels of government under the national level (" territorial collectivities"), between the administrative regions and the communes. Ninety ...

'' near Bonnières-sur-Seine. The road's first few kilometres are notoriously dangerous as the road is a continuous decline towards the river Seine from the

to the RN 13. After crossing the RN 13, the RN 15 follows the Seine towards Vernon. The RN 15 straightens and leaves the river, passing the town of

Gaillon Gaillon () is a commune in the Eure department in northern France. History The origins of Gaillon are not really known. In 892, Rollo, a Viking chief, might have ravaged Gaillon and the region, before he became the first prince of the Normans an ...

. The road runs parallel to the

and passes through the ''Forêt de Louviers'' heading North and over the river at

Pont-de-l'Arche Pont-de-l'Arche () is a commune of the Eure ''département'' in France. Notable monuments include the parish church of Notre-Dame-des-Arts, which was built in the late Flamboyant style. Population See also *Communes of the Eure department T ...

onto the right bank of the Seine. The road follows the river bank overlooked by surrounding cliffs including the ''Roches de Saint-Adrien''. The road meets the Route nationale 14 and enters the capital of

Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...

, Rouen. The N15 heads Northwest from the city centre and towards

. It enters the town of

to continue westwards. The road passes near the town of

Bolbec Bolbec () is a commune in the Seine-Maritime department in the Normandy region in northern France. Its inhabitants are called ''Bolbécais'' or ''Bolbécaises''. Geography A farming, quarrying and light industrial town situated at the heart of ...

, passes the

A29 autoroute The A 29 is a major toll motorway in Normandy and Picardy, northwestern and northern France. The road is also part of European route E44. From its western interchange with the A28 autoroute until its junction with the A26 autoroute, part of the ...

Harfleur Harfleur () is a commune in the Seine-Maritime department in the Normandy region of northern France. It was the principal seaport in north-western France for six centuries, until Le Havre was built about five kilometres (three miles) downstrea ...

and enters

, ending at the city town hall.

History

The N 15 was numbered N 13^BIS from the 1950s until the end of the 1970s reclassification scheme. The RN 13^BIS replaced the RN 182 (between Bonnières-sur-Seine and Rouen) and the RN 14 (between Rouen and

).
Until 1972, the RN 15 was going from

Pontoise Pontoise () is a commune in the northwestern suburbs of Paris, France. It is located from the centre of Paris, in the "new town" of Cergy-Pontoise. Administration Pontoise is the official ''préfecture'' (capital) of the Val-d'Oise ''dép ...

Dieppe Dieppe (; Norman: ''Dgieppe'') is a coastal commune in the Seine-Maritime department in the Normandy region of northern France. Dieppe is a seaport on the English Channel at the mouth of the river Arques. A regular ferry service runs to N ...

; this road has been changed in RD 915 except in the Eure where it is called RD 15^BIS.
In 2006, the RN 15 has also been changed in a ''départementale'' and is now numbered RD 6015 in the Eure and

Seine-Maritime Seine-Maritime () is a department of France in the Normandy region of northern France. It is situated on the northern coast of France, at the mouth of the Seine, and includes the cities of Rouen and Le Havre. Until 1955 it was named Seine-Inféri ...

départements A department (, ) is an administrative or political division in several countries. Departments are the first-level divisions of 11 countries, nine in the Americas and two in Africa. An additional 10 countries use departments as second-level div ...

and D 915 in the

Yvelines Yvelines () is a department in the western part of the Île-de-France region in Northern France. In 2019, it had a population of 1,448,207.Rouen. {{DEFAULTSORT:Route Nationale 15 015 Transport in Normandy