Stormwater Drainage Update Needed
Budget: $30 – $250 USD
I already have a full set of civil drawings for a recently replatted site, but the stormwater portion now needs to be revised. Your task is to confirm—through updated hydrologic and hydraulic calculations—that the existing 21-inch drainage pipe can carry the projected runoff without adding a detention pond, and then reflect those findings in an updated storm plan.
Scope
• Re-run the stormwater design calculations, clearly documenting flow rates, pipe capacity, head losses, and any key assumptions.
• Demonstrate, in writing and on plan, that the 21-inch pipe remains hydraulically adequate all the way to the city’s drainage network connection.
• Update the stormwater sheet(s) accordingly and return the final drawing in PDF format.
I will supply the current civil set with site data as soon as the project starts. Keep changes focused on the stormwater pages—everything else is already approved.
Deliverables
1. Revised stormwater drainage drawing (PDF).
2. Calculation report supporting the design and pipe adequacy.
3. Brief summary memo highlighting changes and confirming compliance with city requirements.
When you apply, include examples of past work on comparable drainage or stormwater analyses so I can gauge fit quickly.
Scope
• Re-run the stormwater design calculations, clearly documenting flow rates, pipe capacity, head losses, and any key assumptions.
• Demonstrate, in writing and on plan, that the 21-inch pipe remains hydraulically adequate all the way to the city’s drainage network connection.
• Update the stormwater sheet(s) accordingly and return the final drawing in PDF format.
I will supply the current civil set with site data as soon as the project starts. Keep changes focused on the stormwater pages—everything else is already approved.
Deliverables
1. Revised stormwater drainage drawing (PDF).
2. Calculation report supporting the design and pipe adequacy.
3. Brief summary memo highlighting changes and confirming compliance with city requirements.
When you apply, include examples of past work on comparable drainage or stormwater analyses so I can gauge fit quickly.