Drainage & Stormwater Management Design
Poor drainage shows up as a wet basement, a flooded yard, or a rejected site plan. We design the grading and drainage that keeps water under control.
- You receive
- Grading and drainage plans with calculations
- Timeline
- Varies with site size and jurisdiction
- Typical clients
- Property owners, developers, architects
When to call us
- Water pools on the site or runs toward the building
- A basement or crawlspace takes on water after rain
- Your site plan needs a stormwater design for agency approval
- A reviewing agency sent back drainage comments
What's included
- Site grading and drainage plans
- Stormwater management design: detention, retention, infiltration
- Drainage calculations and capacity analysis
- Coordination with site civil and landscape plans
- Support for agency submissions and review comments
- Practical fixes for existing drainage problems
Scoped to your project. We scope against your actual site before quoting, and we'll tell you early if another discipline should go first, such as a geotechnical report before final structural design.
How the work runs
Site and data review
Survey, existing utilities, soils information, and the rules that apply.
Drainage design
Grading, inlets, piping, and detention or infiltration as the site needs.
Calculations
Runoff and capacity calculations behind every size we choose.
Plans and approvals
Sealed plans, and answers to review comments until approval.
Common questions
Yes. Many projects are fixes: regrading, new drains, or sending downspouts and runoff away from the building. We find where the water comes from before recommending anything.
Yes. We design to the rules of whichever agency reviews your project and respond to their comments through approval.
Often paired with
Ready to scope Drainage & Stormwater Management Design for your project?
Tell us what you're working on. You'll hear back within one business day from the engineer who'd do the work.