Conservación Rutinaria de Tramos en 354.36 km de las rutas 45, 49 y 114: Ruta 45, carretera: Zacatecas-Durango, tramo: “T Chicharrona-Lim. Edos. Zac./Dgo. del km 74.3 al 160.0, longitud de 85.70 km; tramo: “T Chicharrona-Lim. Edos. Zac./Dgo. del km 164.0 a (Tender №73896154)

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