Overflow outlets, Bowen Road Viaduct [????- ] | Gwulo: Old Hong Kong

Overflow outlets, Bowen Road Viaduct [????- ]

Current condition: 
Unknown

Spotted two of these.  Marker is approximate.

DSCF0405 (2).JPG
DSCF0405 (2).JPG, by tngan

Don't know if there are still water running in it.

T