The Épine tunnel crosses the Chaîne de l'Épine mountain in Savoie. Lyon is 125 kilometres eastbound, Chambéry is 15 kilometres westbound. The tunnel is 53 kilometres from Annecy and 71 kilometres from Grenoble. The western entrance is located less than 500 metres from the northern tip of Lac d'Aiguebelette. The eastern entrance is by the town of La Motte-Servolex.
Historyedit
Construction began in 1972. The westbound tunnel was completed in 1974, and opened to two-way traffic at the end of 1974, the same time as the autoroute between Bourgoin-Jallieu and Chambéry.
Work had begun on the eastbound tunnel, however was delayed due to roughly 2000m² of sand and mud needing to be cleared out from the cavity.[1] This cavity was then filled with a concrete dam to prevent any further effusion. Work on the tunnel resumed in August 1989, to allow the tunnel to be completed prior to the Albertville Olympics in 1992. There is a skylight at the top of the concrete dam to view the cavity. The eastbound tunnel was commissioned and opened to traffic in 1991.[2] After the tunnel opened, visitors were not permitted to the cavity due to an increase in exhaust emissions.
Between 3 and 20 August 2009, AREA (the tunnels operator) carried out renovation work on the westbound tunnel. AREA claimed this was to improve drainage of the Épine massif to the right of the tunnel. Heavy rain had caused the tunnel to rise and the work consisted of building a chamber to facilitate the flow of water without affecting the tunnel.
Characteristicsedit
The tunnel is approximately 3,200 metres long and is made up of two directional tunnels, eastbound and westbound. The eastbound tunnel is slightly shorter in length since the entrances are closer to the cliff. The tunnels are straight however have a slight curve at each end, which makes it difficult to see the exit on approach. The tunnel is equipped with speed cameras.
Referencesedit
^"LELARDEUX, G. (1974): Traitement d'un accident karstique rencontré avec le tunnel de l'Epine sur l'autoroute A 43 Lyon-Chambéry. Revue Tunnel, n°4, juillet-août 1974, C.E.T.U. 78, Bron" (PDF).
^"Recueil des actes administratif de la direction départementale de la préfecture de Savoie".
April 15, 2024
Épine, tunnel, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, august, 2020. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources L Epine Tunnel news newspapers books scholar JSTOR August 2020 Learn how and when to remove this template message The Epine Tunnel is a motorway tunnel situated in France in the Savoie department in the Auvergne Rhone Alpes region The Epine TunnelEastbound tunnel entry towards ChamberyOverviewOfficial nameTunnel de L EpineLocationSavoie Auvergne Rhone Alpes FranceCoordinates45 34 42 N 5 49 29 E 45 57828 N 5 824614 E 45 57828 5 824614RouteA43 autorouteCrossesChaine de l EpineOperationConstructedBegan in 1972 finished 1991Opened1974 westbound tunnel 1991 eastbound tunnel OperatorAREA societe d autoroutes TollYesTechnicalLength3 182m westbound tunnel 3 157m eastbound tunnel No of lanes2Operating speed110km hThe tunnel is 3 200 metres long and crosses the Chaine de l Epine on the A43 autoroute between Lyon and Chambery Contents 1 Location 2 History 3 Characteristics 4 ReferencesLocation editThe Epine tunnel crosses the Chaine de l Epine mountain in Savoie Lyon is 125 kilometres eastbound Chambery is 15 kilometres westbound The tunnel is 53 kilometres from Annecy and 71 kilometres from Grenoble The western entrance is located less than 500 metres from the northern tip of Lac d Aiguebelette The eastern entrance is by the town of La Motte Servolex History editConstruction began in 1972 The westbound tunnel was completed in 1974 and opened to two way traffic at the end of 1974 the same time as the autoroute between Bourgoin Jallieu and Chambery Work had begun on the eastbound tunnel however was delayed due to roughly 2000m of sand and mud needing to be cleared out from the cavity 1 This cavity was then filled with a concrete dam to prevent any further effusion Work on the tunnel resumed in August 1989 to allow the tunnel to be completed prior to the Albertville Olympics in 1992 There is a skylight at the top of the concrete dam to view the cavity The eastbound tunnel was commissioned and opened to traffic in 1991 2 After the tunnel opened visitors were not permitted to the cavity due to an increase in exhaust emissions Between 3 and 20 August 2009 AREA the tunnels operator carried out renovation work on the westbound tunnel AREA claimed this was to improve drainage of the Epine massif to the right of the tunnel Heavy rain had caused the tunnel to rise and the work consisted of building a chamber to facilitate the flow of water without affecting the tunnel Characteristics editThe tunnel is approximately 3 200 metres long and is made up of two directional tunnels eastbound and westbound The eastbound tunnel is slightly shorter in length since the entrances are closer to the cliff The tunnels are straight however have a slight curve at each end which makes it difficult to see the exit on approach The tunnel is equipped with speed cameras References edit LELARDEUX G 1974 Traitement d un accident karstique rencontre avec le tunnel de l Epine sur l autoroute A 43 Lyon Chambery Revue Tunnel n 4 juillet aout 1974 C E T U 78 Bron PDF Recueil des actes administratif de la direction departementale de la prefecture de Savoie Retrieved from https en wikipedia org w index php title L 27Epine Tunnel amp oldid 1177457304, wikipedia, wiki, book, books, library,
