{"id":2472,"date":"2026-04-20T09:51:21","date_gmt":"2026-04-20T07:51:21","guid":{"rendered":"https:\/\/www.alterre-asso.org\/?p=2472"},"modified":"2026-04-20T10:09:35","modified_gmt":"2026-04-20T08:09:35","slug":"deviation-ou-en-est-on","status":"publish","type":"post","link":"https:\/\/www.alterre-asso.org\/index.php\/2026\/04\/20\/deviation-ou-en-est-on\/","title":{"rendered":"D\u00e9viation : o\u00f9 en est-on ?"},"content":{"rendered":"\n

Avril 2026<\/p>\n\n\n\n

\"Chantier<\/figure>\n\n\n\n

La d\u00e9viation de Saint-P\u00e9ray c\u2019est :<\/strong><\/p>\n\n\n\n

\u27a2 1,5km de route reliant Saint-P\u00e9ray sud (La Maladi\u00e8re) \u00e0 Cornas (sud \u2013 RD86) passant par la plaine,<\/p>\n\n\n\n

\u27a2 un projet pens\u00e9 dans les ann\u00e9es 1990 ; un des derniers tron\u00e7ons du p\u00e9riph\u00e9rique de Valence inscrit dans le SCoT (Sch\u00e9ma de Coh\u00e9rence Territorial)<\/p>\n\n\n\n

\u27a2 16 millions \u20ac de budget entre la R\u00e9gion AuRA, le D\u00e9partement de l\u2019Ard\u00e8che et la CCRC (qui porte le projet).<\/p>\n\n\n\n

\u27a2 Une augmentation du trafic routier induite par le projet d\u2019ici \u00e0 2040 estim\u00e9e de 30 \u00e0 56 % d\u2019augmentation au sud et au nord de Saint-P\u00e9ray1<\/a><\/sup><\/p>\n\n\n\n

\u27a2 32 hectares de terres agricoles et naturelles concern\u00e9es au total, avec des parcelles artificialis\u00e9es au nord et au sud du projet<\/p>\n\n\n\n

\u27a2 Un enjeu de biodiversit\u00e9 fort : plus de 20 esp\u00e8ces de chauves-souris identifi\u00e9es (soit 2\/3 des esp\u00e8ces en France), un corridor \u00e9cologique d\u2019importance majeure reliant le Rh\u00f4ne aux coteaux, sur le trac\u00e9.<\/p>\n\n\n\n

Travaux du pont rail : le pont de l\u2019ascension 2026, une date cl\u00e9<\/strong><\/p>\n\n\n\n

Depuis septembre 2025, les travaux ont d\u00e9but\u00e9 sur la partie pont-rail (passage sous la voie ferr\u00e9e, au nord-Est du trac\u00e9), d\u00e9butant par un diagnostic arch\u00e9ologique. Suite \u00e0 une violente op\u00e9ration polici\u00e8re le 29 septembre, la v\u00e9g\u00e9tation, des arbres sur cette partie du trac\u00e9 ont \u00e9t\u00e9 ras\u00e9s. Lors de l\u2019ascension (mai 2026), le pont doit \u00eatre install\u00e9 sous la voie-ferr\u00e9e durant les quelques heures o\u00f9 la voie est bloqu\u00e9e \u00e0 cette fin, de longue date. Les cr\u00e9neaux de voie-ferr\u00e9e bloqu\u00e9es ont des d\u00e9lais de 3 \u00e0 4 ann\u00e9es ; si ces travaux sont report\u00e9s, le co\u00fbt du projet ne pourrait plus \u00eatre support\u00e9 par les collectivit\u00e9s. Les travaux du pont-rail ont \u00e9t\u00e9 prolong\u00e9s jusque fin juillet 2026 par un nouvel arr\u00eat\u00e9 pr\u00e9fectoral du 25 f\u00e9vrier 2026. Ces travaux sont coordonn\u00e9s par SNCF R\u00e9seau, r\u00e9alis\u00e9 par NGE-Guintoli. L\u2019entreprise Comte TP et d\u2019autres sont \u00e9galement intervenues.<\/p>\n\n\n\n

En septembre 2026, des travaux sur le reste du trac\u00e9 sont pr\u00e9vus d\u2019\u00eatre entam\u00e9s.<\/strong><\/p>\n\n\n\n

Un risque juridique lourd : deux jugements attendus dans les prochaines semaines ; deux autres recours en vue et une enqu\u00eate ouverte au parquet 2 recours juridiques ont \u00e9t\u00e9 d\u00e9pos\u00e9s par les associations environnementales et sont en attente de jugement (Alterre, Frapna Dr\u00f4me, Frapna Ard\u00e8che). La LPO s\u2019est \u00e9galement constitu\u00e9e aupr\u00e8s du tribunal sur ces recours en soutien aux associations requ\u00e9rantes. Les deux recours portent sur :<\/p>\n\n\n\n

\u2714 les esp\u00e8ces prot\u00e9g\u00e9es (absence d\u2019\u00e9tude 4 saisons, absence de d\u00e9rogation esp\u00e8ces prot\u00e9g\u00e9es)<\/p>\n\n\n\n

\u2714 l\u2019autorisation de travaux sur le Pont-Rail de l\u2019arr\u00eat\u00e9 pr\u00e9fectoral du 15 mars 2025 (qui autorise des travaux avant-m\u00eame l\u2019obtention d\u2019une d\u00e9rogation esp\u00e8ces prot\u00e9g\u00e9es).<\/p>\n\n\n\n

La cl\u00f4ture d\u2019instruction de ces recours est annonc\u00e9e pour le 20 avril : une date d\u2019audience pourrait \u00eatre annonc\u00e9e \u00e0 ce moment.<\/p>\n\n\n\n

Pour rappel, jusqu\u2019ici :<\/p>\n\n\n\n

\u2022 Un recours sur la D\u00e9claration d\u2019Utilit\u00e9 Publique (DUP) de 2021 a \u00e9t\u00e9 rejet\u00e9 pour vice de forme (la justice ne s\u2019est pas prononc\u00e9e sur le fond) ;<\/p>\n\n\n\n

\u2022 R\u00e9f\u00e9r\u00e9s suspension : le 15 novembre 2024, le tribunal a demand\u00e9 a demand\u00e9 \u00e0 la pr\u00e9fecture de mettre en conformit\u00e9 le projet (d\u2019exiger donc une \u00e9tude 4 saisons), ce que la CCRC a r\u00e9ellement commenc\u00e9 \u00e0 faire seulement apr\u00e8s la mise en demeure par arr\u00eat\u00e9 pr\u00e9fectoral, le 15 mars 2025 ; le 30 septembre 2025, le tribunal saisi \u00e0 nouveau en urgence par les associations n\u2019a pas suspendu les travaux, justifiant sa d\u00e9cision sur la r\u00e9glementation administrative, sans se prononcer sur l\u2019aspect environnemental. En effet, les habitats d\u2019esp\u00e8ces prot\u00e9g\u00e9es vis\u00e9 par les travaux ont \u00e9t\u00e9 d\u00e9truits la veille du verdict dans le cadre d\u2019une op\u00e9ration polici\u00e8re in\u00e9dite men\u00e9e par le pr\u00e9fet, mettant la justice devant un \u00e9tat de fait.<\/p>\n\n\n\n

Plaintes au p\u00e9nal : des proc\u00e8s \u00e0 venir<\/strong><\/p>\n\n\n\n

A ce stade, on identifie 3 objets principaux de plaintes dans le cadre de ce projet :<\/p>\n\n\n\n

\u2022 l\u2019exposition de salari\u00e9s \u00e0 l\u2019amiante le 10 octobre 2024 : des b\u00e2timents ont \u00e9t\u00e9 d\u00e9truits pr\u00e9cipitamment sur le site du nichoir \u00e0 la demande de Jacques Dubay. La pr\u00e9sence d\u2019amiante, y compris aupr\u00e8s des entreprises et agents intervenants et \u00e9t\u00e9 ni\u00e9e par la CCRC, allant jusqu\u2019\u00e0 dissimuler le diagnostic amiante des b\u00e2tis.<\/a> L\u2019entreprise Comte TP a \u00e9t\u00e9 verbalis\u00e9e par l\u2019inspection du travail.<\/p>\n\n\n\n

Celle-ci a \u00e9galement demand\u00e9 la prise en charge des salari\u00e9s de la CCRC concern\u00e9s, sans r\u00e9ponse \u00e0 ce jour, \u00e0 notre connaissance. Un proc\u00e8s est en attente d\u2019audience suite \u00e0 la plainte de salari\u00e9s.<\/p>\n\n\n\n

\u2022 La destruction d\u2019habitat d\u2019esp\u00e8ces prot\u00e9g\u00e9es en octobre 2024 et en septembre 2025. Ces plaintes ont ouvert \u00e0 une enqu\u00eate au parquet comp\u00e9tent (N\u00eemes) qui est en cours. Ces destructions pourraient motiver une d\u00e9cision du tribunal administratif en faveur d\u2019un arr\u00eat du projet.<\/p>\n\n\n\n

\u2022 La destruction de vestiges arch\u00e9ologiques en septembre 2025<\/a>. Cela a \u00e9galement \u00e9t\u00e9 d\u00e9nonc\u00e9 par un collectif national d\u2019arch\u00e9ologue lors d\u2019une tribune dans l\u2019Humanit\u00e9<\/a>.<\/p>\n\n\n\n

Deux recours en vue par les associations environnementales<\/strong><\/p>\n\n\n\n

La CCRC doit avoir d\u00e9pos\u00e9, en mars 2026, une demande de d\u00e9rogation esp\u00e8ces prot\u00e9g\u00e9es : celle-ci doit \u00eatre ensuite valid\u00e9e pour continuer les travaux sur le reste du trac\u00e9 (envisag\u00e9s en septembre 2026). Les lacunes juridiques et manquements r\u00e9currents constat\u00e9s dans les \u00e9tudes environnementales du projet par les associations les poussent aujourd\u2019hui \u00e0 envisager conjointement un recours sur cette d\u00e9rogation. Un autre recours est envisag\u00e9 concernant l\u2019arr\u00eat\u00e9 pr\u00e9fectoral de f\u00e9vrier 2026 autorisant des travaux au-del\u00e0 des contraintes environnementales pos\u00e9es jusqu\u2019ici.<\/p>\n\n\n\n

32 hectares artificialis\u00e9s ; expulsion d\u2019une activit\u00e9 mara\u00eech\u00e8re et refus d\u2019une Zone Agricole Prot\u00e9g\u00e9e<\/strong><\/p>\n\n\n\n

Au nord et au sud de la d\u00e9viation, des terres agricoles et naturelles sont class\u00e9es en constructibles. Il est annonc\u00e9 un projet de Lyc\u00e9es (non envisag\u00e9 par la R\u00e9gion ou le rectorat), de gymnase, et 250 logements. Or, Saint-P\u00e9ray compte aujourd\u2019hui 250 logements vacants et des possibilit\u00e9s de densification urbaine qui pourraient dynamiser le centre-ville. Les constructions impliquent \u00e9galement l\u2019expulsion d\u2019une activit\u00e9 mara\u00eech\u00e8re. Lors du renouvellement du PLUIH, la commune a refus\u00e9 le classement de la plaine en \u00ab Zone Agricole Prot\u00e9g\u00e9e \u00bb demand\u00e9e par de nombreuses personnes dans l\u2019enqu\u00eate publique, dont la Chambre d\u2019agriculture.<\/p>\n\n\n\n

6 millions d\u2019euros pour un passage \u00e0 faune ?<\/strong><\/p>\n\n\n\n

Le co\u00fbt des travaux de la d\u00e9viation n\u2019a cess\u00e9 d\u2019augmenter ces derni\u00e8res ann\u00e9es : avec l\u2019annonce du pont-rail, estim\u00e9 \u00e0 6 millions d\u2019euros, le projet est pass\u00e9 de 9 \u00e0 16 millions d\u2019euros entre 2019 et 2022. Ce budget est l\u2019un des plus importants en investissement de la CCRC. Avec les travaux en cours, il est fort probable qu\u2019il soit \u00e0 nouveau d\u00e9pass\u00e9 (destructions non budg\u00e9t\u00e9es identifi\u00e9es, s\u00e9curisation tr\u00e8s importante du site depuis septembre 2025). Face au risque juridique de voir le projet s\u2019arr\u00eater, la CCRC a justifi\u00e9 les travaux du pont-rail par un \u00ab passage \u00e0 faune \u00bb !2<\/a><\/sup><\/p>\n\n\n\n

Atteintes \u00e0 la d\u00e9mocratie ; enqu\u00eate ouverte \u00e0 l\u2019IGPN pour violences polici\u00e8res<\/strong><\/p>\n\n\n\n

Alterre s\u2019est vue refuser une place au forum des associations de la rentr\u00e9e 2025. Le maire de Saint-P\u00e9ray nie la pluralit\u00e9 d\u2019opinion sur le sujet de la d\u00e9viation3<\/a><\/sup>.<\/p>\n\n\n\n

7 plaintes sans fondement ont \u00e9t\u00e9 d\u00e9pos\u00e9es par le Pr\u00e9sident de la CCRC et deux agents \u00e0 l\u2019encontre de l\u2019\u00e9lue r\u00e9gionale Maud Grard et son conjoint. Lors d\u2019une audience en octobre 2026, le tribunal a abandonn\u00e9 les charges concernant le port de l\u2019\u00e9charpe d\u2019\u00e9lue r\u00e9gionale.<\/p>\n\n\n\n

En septembre 2025, les opposants au projet ont subi une r\u00e9pression polici\u00e8re sans pr\u00e9c\u00e9dent : 400 heures de garde \u00e0 vue au total. Les violences polici\u00e8res syst\u00e9matiques d\u2019un policier du commissariat de Guilherand-Granges notamment ont fait l\u2019objet d\u2019une ouverture d\u2019enqu\u00eate par l\u2019IGPN (menaces de mort, propos homophobes, allusions sexuelles… de la part du policier). Voir articles de Lib\u00e9ration, M\u00e9diapart, Street Press notamment.<\/p>\n\n\n\n

De multiples collectifs et associations pour demander des alternatives \u00e0 ce projet d\u2019un autre temps<\/strong><\/p>\n\n\n\n

L\u2019association Alterre, pour des alternatives au projet routier, a \u00e9t\u00e9 cr\u00e9\u00e9e en 2022 et regroupe des habitant.es du territoire et riverain.es du projet.<\/p>\n\n\n\n

Le collectif Les Ami.es de la plaine s\u2019est mobilis\u00e9 en faveur d\u2019action de d\u00e9sob\u00e9issance civile pacifiques depuis octobre 2024 sur le projet de d\u00e9viation.<\/p>\n\n\n\n

Autres associations et collectifs partenaires :<\/p>\n\n\n\n

FRAPNA Ard\u00e8che et Dr\u00f4me, LPO Dr\u00f4me-Ard\u00e8che, Les Amis de la Terre Dr\u00f4me, Terres de Lutte, Le D\u00e9route des Routes, les associations et collectifs contre les \u00e9changeurs nords Dr\u00f4me (Assez) et Sud Dr\u00f4me (Vivre, respirer, se d\u00e9placer en Tricastin), les Ami.es de la Bourges (07), CUTPSA (collectif de d\u00e9fense des trains voyageurs en rive droite du Rh\u00f4ne), la Conf\u00e9d\u00e9ration Paysanne.<\/p>\n\n\n\n

La Chambre d\u2019agriculture de l\u2019Ard\u00e8che a \u00e9galement adopt\u00e9, le 26 septembre 2025, une motion demandant la pr\u00e9servation des terres agricoles dans la plaine de Saint-P\u00e9ray.<\/p>\n\n\n\n

<\/p>\n\n\n

  1. Voir : https:\/\/www.alterre-asso.org\/index.php\/2025\/09\/11\/vite-des-alternatives-au-projet-de-deviation\/<\/a> \u21a9\ufe0e<\/a><\/li>
  2. https:\/\/c.ledauphine.com\/transport\/2025\/04\/02\/deviation-le-pont-rail-pourra-voir-le-jour-y-compris-sans-voiture<\/a> \u21a9\ufe0e<\/a><\/li>
  3. \u00ab les Saint-P\u00e9rolais sont tous favorables au projet \u00bb Fr\u00e9d\u00e9ric GERLAND https:\/\/c.ledauphine.com\/politique\/2025\/09\/26\/deviation-de-saint-peray-le-maire-apporte-son-soutien-a-la-ccrc?login=1<\/a> \u21a9\ufe0e<\/a><\/li><\/ol>\n\n\n

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    Avril 2026 La d\u00e9viation de Saint-P\u00e9ray c\u2019est : \u27a2 1,5km de route reliant Saint-P\u00e9ray sud (La Maladi\u00e8re) \u00e0 Cornas (sud \u2013 RD86) passant par la plaine, \u27a2 un projet pens\u00e9 dans les ann\u00e9es 1990 ; un des derniers tron\u00e7ons du p\u00e9riph\u00e9rique de Valence inscrit dans le SCoT (Sch\u00e9ma de Coh\u00e9rence Territorial) \u27a2 16 millions \u20ac […]<\/p>\n","protected":false},"author":4,"featured_media":2474,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":"[{\"content\":\"Voir : https:\/\/www.alterre-asso.org\/index.php\/2025\/09\/11\/vite-des-alternatives-au-projet-de-deviation\/<\/a>\",\"id\":\"f6e9abaf-c53c-4baa-bf73-390f2f30307a\"},{\"content\":\" https:\/\/c.ledauphine.com\/transport\/2025\/04\/02\/deviation-le-pont-rail-pourra-voir-le-jour-y-compris-sans-voiture<\/a>\",\"id\":\"66511084-bdd1-4f37-88ef-2e1d2a1c9b78\"},{\"content\":\" \u00ab les Saint-P\u00e9rolais sont tous favorables au projet \u00bb Fr\u00e9d\u00e9ric GERLAND https:\/\/c.ledauphine.com\/politique\/2025\/09\/26\/deviation-de-saint-peray-le-maire-apporte-son-soutien-a-la-ccrc?login=1<\/a>\",\"id\":\"f01f4e2a-8a52-4edf-aac9-051df8a9c61c\"}]"},"categories":[1],"tags":[],"class_list":["post-2472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe","entry","has-media"],"yoast_head":"\nD\u00e9viation : o\u00f9 en est-on ? 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