The work of covering of Palam Drain was awarded on
12.10.2002 to M/s. Ansal Properties and Industries Ltd.
Initially, the work could not be started because of
earthquake in Gujarat from where the agency had to procure
T&P such as Batching mix plant etc. The work was geared
up after the monsoon season of 2001.
The progress of work as on 31/8/07 is 95%. The program has
been chalked out for the execution of work keeping in mind
the restrictions imposed by I&F Department during the
rainy season i.e. from June to September every year. During
this period the entire portion under execution is submerged
and the work virtually become stand still due to flow of
water in Palam Drain.
The I&F Department has also directed that there should
not be any obstruction in Palam Drain during the rainy
season to avoid any heading and over flowing of water in
upstream portion where several residential localities exist.
Both the Carriage Way are completed and open to traffic for
test drive. Miscellaneous works of Service Road, Footpath
and Coating over the walls are in progress. The work is
likely to be completed in all respect by 31.12.07.
lane road over covered drain with service
Five Nos RCC Boxes of 4.0 Mtr width each.
Length of covered portion of Drain
Precast walls in straight reach with cast in situ raft
& top slab.
Cast in situ structure in covered portion
Jointing of precast panels
Silicon sealant joint to be filled by injecting method.
Ramps at every 200 Mtr, Cleaning of drain to be done
Special treatment on inner sides of covered drain to
prevent erosion of concrete.
Two tier treatment.
i) Polymer base sealing layer.
ii) Polymer modified anticorrosive mexafalt treatment
Expansion joint in walls and base slab
Joints filled with Polysulphide.
Expansion joint in deck slab for smooth riding
Elastomeric slab seal joint
Arrangement for escape of gases
i) In central verge.
ii) Side wall of cleaning ramps.
Natural light in box drain
4 mm thick poly carbonate sheet at central verge and at roof