Looking in turn at urban water and flood risk, they consider such topics as the influence of chlorinated water on the mechanical properties of polyethylene and polyvinyl chloride pipes, using energy generated by water flowing in pipes to power devices monitoring the water supply network, a laboratory study of the rainfall influence over the sediment transport dynamics in the discharge from pervious pavements, a projection in Hilbert space for forecasting flooding of New Zealand's Pomahaka River, and the hydraulic efficiency of road drainage inlets
for a storm draining system under clogging effect.
When trash piled up on side streets are not collected, these would only get swept into the drainage inlets
during rains or floods.
Flood Control and Sewerage Management Office head Maxima Quiambao said that drainage inlets
on the flooded roads were not able to cope with the huge amount of rain that fell Tuesday afternoon.
In what seems to be violation of even the fundamental axioms of civil engineering, drainage inlets
have been plastered or choked with heavy concrete debris.
Figure D-11 shows an example of how to connect multiple drainage inlets
to drain a larger area.
Tolentino said the road projects, mostly in Quezon City, Manila, Caloocan and Pasay, have been contributing to the flooding problem as the debris from diggings have ended up blocking the drainage inlets
High Pass Road and River Road: Contractor will install storm drainage inlets
and pour curbs and gutters this week.
quantities of work to be bid upon is as described as follows: install approx 482 lf concrete curb and gutter, 368 sy concrete sidewalk including retaining wall under sidewalk, 400 lf 15" hdpe pipe, 3 drainage inlets
, asphalt repair, and miscellaneous items.
Tenders are invited for construction and completion of the project consisting of excavation, construction of drainage pipe, construction of concrete drainage inlets
with grates, associated erosion control measures, swale re-grading, street restoration, and installation of grass sod.
Tenders are invited for construction of improvements to bicycle and pedestrian safety improvement projects which include but are not limited to: clearing and grubbing, maintenance of traffic, regular excavation and embankment, sediment control, drainage inlets
and culverts, concrete gravity walls, concrete curbs and raised medians, sediment control, pedestrian crossing signal, concrete sidewalks with american with disabilities act (ada) ramps, asphaltic pavement, permanent traffic control devices, minor signalization work with traffic signal loops, signage and pavement marking