Commercial driveway connection to locad road
Commercial driveway connection to locad road
(OP)
What is the proper way to grade a t-intersection?
I have a site where my proposed driveway/entrance connects to an existing road at a max of 5% grade. However, the local road I need to connect to has a longitudinal slope of 6%.
Can anyone lead me to a detail or drawing of how to grade this type of connection, where my driveway/entrance will be connecting to a road that is not level?
My driveway is running north to south and the road I need to connect to is running west to east at a slope of 5%
I have a site where my proposed driveway/entrance connects to an existing road at a max of 5% grade. However, the local road I need to connect to has a longitudinal slope of 6%.
Can anyone lead me to a detail or drawing of how to grade this type of connection, where my driveway/entrance will be connecting to a road that is not level?
My driveway is running north to south and the road I need to connect to is running west to east at a slope of 5%





RE: Commercial driveway connection to locad road
RE: Commercial driveway connection to locad road
I have a site where the entrance is at elevation 840. The road I need to connect my entrance to is at elevation 843 and its south of the site. Starting at my site, I go north and I run 2% then I increase to 5% and then as I approach the local road I am connecting to, I decrease to 2% over 15 ft.
The question I have is that the local road I am connecting to, has a longitudinal slope of 6% running west to east, which would make my driveway have a 6% cross slope at the point where my driveway meets the local road edge of pavement. Is this ok? Is 5% monoslope (west to east) on my driveway acceptable? I could transition to a crown in the driveway, however I think that the 15 ft of 2% roadway will need to be increased otherwise there is going to be like a 10% hump from the local road to the driveway before it starts descending to my site at 5%.
The driveway is 40' wide and will connect a commercial site to the local road.
RE: Commercial driveway connection to locad road
RE: Commercial driveway connection to locad road
We just tried using an APWA standard to get around a city standard and the city engineer forced us to figure out how to get the city driveway standard working. This almost killed a mixed-use project for us.
Also after designing the driveway call over to the city engineer or inspector and ask if they have any issues with your design. Of course be ready to have a highlighted print to fax.
Civil Development Group, LLC
Los Angeles Civil Engineering specializing in Hillside Grading
http://www.civildevelopmentgroup.com
http://www.civildevelopmentgroup.com/blog
RE: Commercial driveway connection to locad road
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Commercial driveway connection to locad road
The driveway will have 2 lanes of traffic. I think its proposed for approximately 36 or so feet wide at the moment
RE: Commercial driveway connection to locad road