Simone Garozzo - The Most Important Drawing

Case Study 2: The Most Important Drawing Wasn’t on the Plans

One Missing Drawing Could Have Delayed the Entire Project

A builder forwarded the civil stormwater drawings and requested a drainage schedule for the project.

During the review, it became apparent that one critical area, the car wash bay, wasn’t detailed within the civil package. The plans referenced the hydraulic documentation for the treatment pit, wash bay drainage and pumping station, meaning the information required to specify the drainage products simply wasn’t there.

Rather than issuing an incomplete quote or asking the builder to coordinate between multiple consultants, I contacted the hydraulic engineer directly and obtained the missing design information from the source.

Detail of the civil stormwater plan showing the car wash bay treatment pit referring out to the hydraulic services drawings
The plan’s own notes. Treatment pit, wash bay and pumping station all refer out to hydraulic services drawings that weren’t in the package.

The information required to specify the drainage products simply wasn’t there.

The civil stormwater plan for the ground-level car park
The civil stormwater plan. Green lines, invert levels, and three references to drawings outside the package.
Aerial view of the completed development
The site those drawings become. Specified right the first time.

With the hydraulic details confirmed, the correct drainage products could be selected based on the required flow rates, loading classification and application, ensuring the specification matched the engineer’s intent before procurement.

The builder avoided unnecessary RFIs, the plumber received the correct information sooner, and the engineer wasn’t drawn into a long chain of emails.

The result

  • Identified missing hydraulic information before the quoting stage.
  • Coordinated directly with the hydraulic engineer to obtain the required specifications.
  • Eliminated unnecessary back and forth between the builder, plumber and consultants.
  • Ensured the correct drainage system was specified the first time, avoiding delays and potential variations.

Key Message

Plans don’t always tell the whole story. Understanding where to find the missing information is just as important as understanding the products themselves.

The driveway entry corner of the completed development from above
The corner the civil package couldn’t describe.
Sim, Business Development Manager at Vincent Buda and Co
SimBusiness Development Manager
Vincent Buda & Co