Aqueduct of Segovia
Roman Flavian Trajanic c.112 CE·Roman (Hispania)·🇪🇸 Castile and León, Spain
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About
About Aqueduct of Segovia
Aqueduct of Segovia – 28.5m double-tier granite ashlar aqueduct (167 arches, 15 km total, 813m bridge) carrying Río Frío to Alcázar without mortar, c.112 CE Flavian-Trajanic. UNESCO 1985. Post-classical repairs, Isabel I 1073 legend, Azoguejo intact; Chapman's 2022 photogrammetry confirms 20,400 blocks precisely counterweighted via opus quadratum.
Why it mattersMost completely preserved mortarless Roman aqueduct bridge (28.5m high double tier)
Open questions
Mysteries & theories
Mysteries
- 01Hydraulic capacity and catchment reconstruction
- 02Construction labor and failure modes
Theories
- 01State hydraulic power basis
- 02Continuous water governance and resilience
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c.112 CE under Trajan (dedication attribution)
- Period
- Roman Flavian Trajanic c.112 CE
- Culture
- Roman (Hispania)
- Builders
- Roman engineers (Legio?)
- Purpose
- 16 km aqueduct (28m arch double tier) supplying Segovia from Río Frío
- Excavation
- Excavated
c.112 CE under Trajan (dedication attribution)
Initial construction
On the ground
Structures & features
40.9479° N · 4.1178° W · 1002 m · 3 mapped features
- Plaza Azoguejo Double Arches (167 arches)aqueduct bridge28.5m double-tier granite arch section spanning Plaza Azoguejo40.9479° N · 4.1178° W
- Río Frío Source CanalcanalUpstream Río Frío mountain source channel feeding aqueduct40.9429° N · 4.1378° W
- Alcázar Distribution CastellumcastellumTerminal castellum distributing water to Alcázar and city40.9489° N · 4.1158° W
Gallery