USA includes four bore jacks under highways and railroads .” Flow and meter vaults and electrical & telemetry will provide the communication to operate the system to deliver the surface water .
One of the main challenges has been drilling under a highway . “ We had to drill a 1200 ’ directional drill under Highway 113 , 90 ’ deep . You have to picture an arcing drill that comes back out of the ground . Then when that hole is constructed they have to pull the pipe back through that hole . They did that aerially , so it was very exciting . The pipe actually sat about 30 ’ above the ground , crossing the road . It took 17 hours to complete .”
This kind of highway work brings traffic complications , says Hanak . “ Any of the intersections that the pipeline travels through are extremely busy , so we go to night work to eliminate some of the traffic inconveniences for the residents and businesses .”
The project has to abide by strict environmental regulations . “ California has strict compliance guidelines that must be adhered to ,” says Hanak . “ What the city did initially when they came out with the project was to inform the contractor that they would be responsible for having an archaeologist on site every day , and that we would have an arborist to do a full tree evaluation on every single tree within the route of our pipeline and develop a report so those trees were not hindered or damaged throughout the project .”
The construction has to take particular care with water run-off during the winter months . When
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