Prior Information Notice for the Sucre III Water Conveyance System, Lot 3: Tunnels, bridges and aqueducts. The conveyance system has a total length of 10.34 km, and consists roughly of the following main components:
- Three tunnels with a total length of 7,754 m (Fisculco tunnel: 5.484 km; Aritu Mayu tunnel: 0.21 km; Punilla tunnel: 2.06 km) with a main horseshoe-shaped tunnel section of 10 m2.
- Interconnections between Fisculco – Aritu Mayu and Aritu Mayu – Punilla tunnels, consisting of an embankment (of 103 m crown length made up of tunnel extracted materials) and a post-tensioned concrete bridge aqueduct (with a total length of 157 m + 56 m of accesses) respectively.
- Main pipeline conveyance made up of following stretches:
- 8.15 km Fiberglass Reinforced Plastic (GRP) pipe, ø = 1,200 mm, free surface flow (the pipeline will be installed inside the completed tunnels and on top of the interconnection structures)
- 0.85 km High Density Polyethylene (HDPE) buried pipe, ø = 1,200 mm, free surface flow
- 1.22 km GRP pipe, ø = 900 mm (Santa Catalina Pressure Pipe)
The conveyance system is designed for a maximum flow capacity of 1,200 l/s, which corresponds to the water demand for Sucre in the year 2050.
The estimated contract value for Lot 3 works is equivalent to EUR 33 million. Estimated date of publication of procurement notice: Third or Fourth Quarter of 2020. For further information click here (English) and/or here (Spanish). 20/20.
