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How to Grade Roads and Lots for Construction Plans

In this video you will learn how to grade a road, culdesac, and lot in a residential land development project. Throughout the video, there will be pictures and videos to help draw the connection between real life and construction plans. Below are the list of constraints: What is the minimum low point the road can be? In our example: Minimum EOP = DHW25 + 0.5’; Crown = DHW25+0.74’ What is the minimum road slope (longitudinally)? Profile Grade Line (PGL)? 0.35% (REMEMBER, this is 0.0035 ft/ft. TWO ZEROS. What is the maximum distance between road low points and high points? Rule of thumb: 300 ft What is the minimum sideyard slope for a yard? 1% ; this is typical What is the min / max cross slope of road? Min 2%, max 3% (typically just call out 2%) What is the max change in road slope before needing a vertical curve? Max 1.2% for this type of design speed What is the min/max sidewalk slope? 2% max What is the max driveway slope? 8-10% gets steep What is the max slope for open space areas? 4:1 (or 25%). This means 1 ft vertical for every 4 ft horizontal. 🎓 STUDENT & DESIGN RESOURCES Access templates, tools, and more: 👉 https://payhip.com/civilhub 🔗 CONNECT WITH ME 🌍 Website – https://www.griffinfurlong.com/ 📸 Instagram –   / civilgriffin   📱 TikTok –   / civilgriffin   📘 READ MY BOOK Boundless: Choosing a Mindset for Lifelong Growth 👉 https://www.amazon.com/dp/B0BBJWJK2B WHO AM I? I'm Griffin — a licensed civil engineer sharing practical insights from land development. I help students and young professionals gain real-world engineering skills that schools don't teach. Disclaimer: The content provided in this video is for informational purposes only and is based on my personal experience as a civil engineer. It should not be considered as professional engineering advice or a substitute for consulting with a licensed professional engineer. While I strive to provide accurate and useful information, I make no guarantees regarding the accuracy, applicability, or completeness of the content. Always seek the guidance of a qualified professional for specific engineering projects. I assume no liability for any actions taken or decisions made based on the information provided in this video.