Rapid Assessment for Resilient Recovery and ... - GFDRR

In the Bangkok metropolitan area, there
are eight wastewater treatment plants
whose initial investment cost was a
total of approximately THB 25 billion.
These plants are of particularly high
value because of their high treatment
capacity (more than 1 million cubic
meters of water per day) and the technology
they employ. Damage to these
Bangkok based plants, however, was
not as severe as in other provinces,
as similar to water supply utilities,
the wastewater utilities had sufficient
time to prepare themselves against
Sub-sector/Component
Total
Water Supply - Urban
Water intake structures
Water treatment plants
Conveyance systems
Storage systems
Distribution network
Water Supply - Rural
Surface & groundwater systems
Sanitation - Urban
Sewage treatment works
TOTAL
Damage
37.5
30.8
0.2
0.4
1.3
1,783.2
1,643.6
3,497.0
the floods. Total damage is therefore estimated at 1 percent of the replacement value of
the plants, or THB 250 million (mainly including inundated electrical control systems and
washed away biological material). Close inspection is recommended to verify the exact
types of damage.
Figure 12: Aboveground
damage from underground
sewage pipe network subsidence
(16 Nov 2011)
Table 28: Water and
sanitation sector –
Damage in Thai baht,
millions
92 THAI FLOOD 2011 RAPID ASSESSMENT FOR RESILIENT RECOVERY AND RECONSTRUCTION PLANNING