From the exit of the impulsion at Ojós to the Mayés regulating reservoir there are a series of open-air canals, siphons, tunnels and aqueducts in the following sequence.
1) UMBRÍA TUNNEL
Length of tunnel: 130m
Length of artificial tunnel: 41m
Circular section, inner diameter: 4m
2) OPEN-AIR CANAL
Length: 4.192m.
Base width: 3,45m
Lateral walls: 1(H)/5(V)
Height: 3,45m
Regiment height: 3,05m
Regiment discharge: 23,32 m³/seg.
3) YESERA AQUEDUCT
Artificial Tunnel: 86m.
Length: 91m
Number of spans: 4
Height of: 4,35m
Maximum height of pillar: 11m
4) RICOTE TUNNEL
Length: 406m
Circular section inner diameter: 4m
5) RICOTE AQUEDUCT
Length: 108m
Number of spans: 7
Maximum height of pillar: 8m
6) RICOTE SIPHON
Length: 310m
Concrete pipe with metal covering.: 3m
Maximum working pressure: 3 Atmospheres
Artificial Tunnel: 280m
7) MEZQUITA AQUEDUCT
Length: 172m
Number of spans: 4
Maximum height of pillar: 14,50m
8) CARCELÍN SIPHON
Length: 795m
Concrete pipe with metal covering: 3m
Number of porta-siphons: 3m
N° de pillars of the three porta-siphons: 7
Maximum working pressure: 8atm
Entrance Carcelín Siphon
Sifón del Carcelín
9) CAJAL TUNNEL
Length: 464 m
Circular section inner diameter: 5
Artificial Tunnel : 9,50 m
Exit of tunnel of Umbría impulsion
10) CAJAL AQUEDUCT 1
Length: 94 m
Number of spans: 5
Maximum height of pillar: 9,50 m
11) CAJAL AQUEDUCT 2
Length: 80 m
Number of spans: 5 m
Maximum height of pillar: 9,50 m