Bad repairs

Untidy, disordered, surely not-Roman repairs including spolia (reused, ancient materials) just
above the key-stone. This reused stone in the first arch of the aqueduct bridge, close to the El
Caseron. This stone seems to be half of a perforate block as used in pressure pipes of aqueduct
siphons. Its origin is unknown, but may be part of a siphon from the Segovia water supply.