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I will driveway culvert design hydraulic sizing drainage crossing plans runoff analysis
Civil Engineering Site Development and Stormwater Design
I'm Henry Pattey. I provide civil engineering design and drafting support for residential, commercial, and land development projects. My services include site plans, grading, drainage, stormwater mana...
About this Gig
Welcome! Im Henry Pattey. I provide driveway culvert analysis and drainage crossing drawings for residential access and small site development projects.
WHAT I OFFER
- Driveway culvert hydraulic sizing
- Runoff calculations where included
- Headwater and tailwater assessment
- Inlet and outlet control checks
- Crossing plans and culvert profiles
- Outlet protection details where included
WHAT YOU RECEIVE
A PDF calculation summary documenting inputs, assumptions and results. Standard and Premium include crossing drawings and editable DWG files.
WHY WORK WITH ME?
I focus on clear calculations, readable drawings and coordination with your survey, road geometry and project requirements.
Packages cover one crossing at one site. Surveys, structural loading design, floodplain studies, permit fees and engineering seals are excluded. Approval remains subject to authority review.
Contact me before ordering with your location, survey, drainage information and reviewing agency requirements so we can confirm the scope.
Project scale:
Building complex
Building type:
Residential
•
Commercial
•
Infrastructure
Material speciality:
Concrete
•
Wood
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
FAQ
What information do you need?
Send your location, topographic survey, driveway layout, ditch elevations, existing culvert details and agency requirements. Basic and Standard also require design flow.
Are runoff calculations and permit approval included?
Runoff calculations are included in Premium for the agreed catchment. Permit approval, structural loading design and engineering seals are not included.
