August 2016, Vol. 71 No. 8
Features
Stormwater Drainage Ditch Becomes Wide Pedestrian Walkway
Daytona Raising Project Creates Speedway For Attendees
As the Daytona Speedway continues its $400 million construction project, one key part was the improvement to nearby roads that would enable the smooth flow of some 100,000 spectators before and after a race or event. Existing stormwater ditches were replaced by a closed drainage system with wide sidewalks on top.
Completed in June 2015, the new stormwater drainage system is part of a 1.38-mile design-build project on US 92 – International Speedway Boulevard ‒ between Williamson Boulevard to Midway Avenue. For the ditch in-fill, more than 30,000 linear feet of large-diameter (18 to 48 inches) polyolefin pipe was used.
“This was a design-build job, so we could use the ADS HP pipe instead of RCP,” said Chad Hazen, manager, Hazen Construction LLC (New Smyrna Beach, FL.) “Essentially, the job is going from storm box to storm box to collect all that drain off from the road. On International Speedway Boulevard there were two gigantic ditches on both sides that were right in the way of pedestrians. You have the entire right-of-way effectively being a ditch with a little tiny sidewalk. When you have 150,000 race fans leave after the race, it’s a lot of bottleneck congestion. They decided to pipe the ditches to create a 10-foot wide sidewalk on both sides.
“The idea was that the roadway had closed-flue inlets – 132 of them that allowed the water to drain off the road through this concrete flume and then it just dumped into the ditch. The question was how do we capture all that runoff and get it into the trunk line? That trunk line was anywhere from 18 inches all the way up to 48 inches, the biggest pipe we laid on this job. When you’re weighing that and you’re collecting all the rain off the road, how do you get from the main line to the flume up there? Basically it was an 18-inch pipe that would connect into that flume and then allow all the runoff of the water to make it to the trunk line.
“The biggest advantage we had was that this pipe is very rigid, which is good because Florida DOT projects require you to laser profile and check for joint gaps, cracks and ovality of the pipe,” Hazen continued. “With laser profiling, the FDOT could say that a pipe is no good and you have to go and do the repair. ADS came up with this product which is very rigid so it never goes out of round.
“The other advantage is that the pipe easily goes home and you don’t have a joint gap because of the amount you can insert into the bell end. It is so great that even if you don’t home it up all the way, FDOT will still recognize it as a watertight joint.
Pipe
A product of Advanced Drainage Systems Inc., ADS HP storm pipe is a high-performance polypropylene pipe for gravity-flow storm drainage applications. According to ADS, the pipe couples advanced polypropylene resin technology with a proven, dual-wall profile design for superior performance and durability. The smooth interior wall offers additional strength as well as superior flow. It meets ASTM F2736, ASTM F2881 and AASHTO M330 for the respective diameters.
On the Daytona job, the pipe was buried with cover ranging from 3 to 9 feet of native soil. “We had five crews with about five people in each working at the peak of the job laying different lines at five different locations, which all connected at the end,” Hazen explained.
On Bayless Boulevard, the water ultimately drains into a 5- by 10-foot box culvert, goes underneath the road and then into a canal – the Bayless waterway – that eventually goes under I-95 and ultimately ends up miles away in the Tomoka River.
To connect the laterals to the trunk line, Inserta Tee units from ADS were used. “We generally use a box,” Hazen stated, “but using the Tees was approved by everybody, which saved some money and made it possible for the job to be installed a lot quicker than using pre-cast structures. We had used the Tees on other smaller projects with HP, but this is the biggest to date. There was a lot of pipe – more than five-and-a-half miles – and about 134 Inserta Tees from 24-by-18 to 48-by-18 inches.”
FOR MORE INFORMATION:
Hazen Construction,
(386) 322-8700, hazenconstruction.net
Advanced Drainage Systems Inc.,
(419) 424-8275, ads-pipe.com
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