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The ancient city of Los Banales (Roman Tarraca ?) grew up beside the important Roman road between Caesaraugusta (present Zaragoza) and Pompaelo (Pamplona) and had its heydays between the first century BCE and the third century CE. Important remains are left and excavations are still ongoing. The major findings are the forum, a temple, statue bases, residential buildings, an arts and crafts quarter, necropolis, the baths and an aqueduct.
RemarksGiven the quality of the ashlars and the quality of the construction (irregular, far from level) it is most unlikely that this dam is of Roman origin.Apart from this argument, Romans did dislike water from stagnant origin; they had a preference for water from springs. WDS |
The air section in short - Distance to be bridged: approximate 375 m - Number of pillars: 8 + 32 + 20 + 12 = 72 of which only 32 are still standing, the other numbers are hypothetical: - 8 before the first standing pillar - 20 missing pillars in between the standing ones - 12 after the last standing pillar - Height of the (standing) pillars: between 3,5 and 7 m - Pillar composition: a variable number of sandstone blocks (typical number: 12 - 15) - Typical cross-section (6 m in height): 1,40 x 0,90 m - Top blocks (the coronations) have horizontal grooves of 0,40 x 0.07 m - Each pillar had one horizontal square hole 0,90 m below the top - Distance between the pillars: 4,9 m - Gradient on the 250 m of standing pillars: 0,08% - The wooden construction on top of the pillars were used to support a wooden gravity channel or ceramic or lead pipe to transport the aqueduct water to the city of Los Banales. Remarks - For a piped aqueduct there was no need to make the support almost 100% level - Ceramic pipes would have left fragments behind in the surroundings - Was this construction on the long run cost effective compared to a traditional arcade or a siphon? WDS |
Item | Info | |
---|---|---|
Length | Unknown | |
Cross-section | 0,45 m x 0,40 m | |
Volume | Unknown | |
Gradient | 0,08 - 0,09 % | |
Period | Augustan | |
Features | Partly wooden support and 'channel' |
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How to visit : |
About 1,5 km NE of Sadaba; from Layana the route is signposted. Near the city hill one can also find the Ermita de Los Banales. |
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