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Recent content by Lndsn

  1. Lndsn

    What is the best civil add-on for AutoCAD?

    Hello all, I am trying to decide what is the best CAD add-on program for my purposes. I am a landscape architect and up to this point I have been just using plain old AutoCAD to do all of my grading plans, road profiles, detention pond design, etc, etc. I have very limited knowledge of the...
  2. Lndsn

    Determining Vertical Curve Length???

    I'm sorry I am pretty new to this. What is the Green Book? Also, TerryScan - you are right, because of the accel/ decel lanes, I'm not very concerned about sight distances. I just want to ensure easy of access. And I don't want any vehicles bottoming-out. I have done what you suggested with...
  3. Lndsn

    Determining Vertical Curve Length???

    Some additional info: I basically need to drop 18 feet in 200 ft. the last 80 or 90 feet are also a 90 degree turn so I want to make that a bit shallower. the way I have it now I have 13'2" of 3% off of the edge of the accel/decel lane and 36'10" of 12.5%. So my total curve length (unequal...
  4. Lndsn

    Determining Vertical Curve Length???

    My basic question is: What determines the curve length that you need to use for two intersection tangents. Also does wheel base of the design vehicle relate at all to this? Here is my problem in more detail: I am designing and entrance to a parking lot at a park. The entrance comes off of a...
  5. Lndsn

    storm pipe minimum slope???

    I'm pretty new to doing stormwater drainage plans. I recently was told that 0.5% slope for pipes only really drains when the pipe is a minimum length and using this slope doesn't work well for small sites. I am currently working with a very flat site and am having difficulties getting it to...
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