The City of Paso Robles Department of Public Works worked with
Cannon, the project engineer, in order to increase the efficiency of a
storm drain on Ashwood Place.
“A resident of the community had constructed a masonry wall,
blocking stormwater flow and flooding a neighboring home,” said
Ditas Esperanza, Capital Projects Engineer with the City of Paso Robles.
“We needed a quick, cost effective storm drain solution to remedy the
The design options were to either increase the size of the existing
culvert or to add on to the culvert. The existing utilities on the site
caused routing difficulties and decreased culvert replacement options
for the City. The design necessitated that the City keep the existing 60-
in. diameter corrugated metal pipe culvert and install an additional 60-
in. diameter pipe adjacent to it. The new pipe would fit into the existing
space between the utilities that go above and below it.
DuroMaxx Steel Reinforced Polyethylene (SRPE) pipe has low minimum
cover requirements and a relatively thin profile, enabling the City
to keep the utilities exactly where they were without disruption.
Corrugated HDPE pipe and Reinforced Concrete Pipe have significantly
larger outside diameters and would have required rerouting and
reconstruction of the existing culvert.
DuroMaxx was chosen for the project because of the ease of installation,
because it had a smooth inner wall for outstanding hydraulic capacity
and because of its cost efficiency. DuroMaxx is also manufactured with
bell and spigot joints and has fewer joints to assemble on site, resulting
in a faster installation. C3 Construction installed 160-ft. of 54-in. diameter DuroMaxx Pipe with 15 psi bell and spigot joints.
“We are very pleased with the outcome of the project,” said Esperanza. “We had to find a solution at minimum cost and are
happy that Cannon recommended the DuroMaxx product to us.”