TORCHMAN
Structural
- Sep 8, 2023
- 70
Fellow engineers,
I am working on a small project where a bit of parking lot is being regraded to create a loading dock. This loading dock will slope down about 4 ft but the overhead door and opening will remain raised to current grade. As a method of storm water management, the architect proposed that a catch basin with a pump be added to the bottom of the loading area. I am looking to check the pump requirements for this application.
I plan on using a 5 and 100 year storm as a check per my regional guidelines. Specifically, I am stuck creating time series for chicago design storms required by the regional guidelines using IDF Curves (provided by MTO). While the MTO IDF Curve lookup tool provides coefficients A and B, the equations I find for chicago design storms require more coefficients (n and gamma) from the research I found - based on Bentley StormCAD website. Can anyone recommend an online resource or textbook with examples? Is the go to place "Applied Hydrology" by Chow et al. (1988)? I have found an online version but somehow it is missing the pages I need - Chapter 14.4
I am working on a small project where a bit of parking lot is being regraded to create a loading dock. This loading dock will slope down about 4 ft but the overhead door and opening will remain raised to current grade. As a method of storm water management, the architect proposed that a catch basin with a pump be added to the bottom of the loading area. I am looking to check the pump requirements for this application.
I plan on using a 5 and 100 year storm as a check per my regional guidelines. Specifically, I am stuck creating time series for chicago design storms required by the regional guidelines using IDF Curves (provided by MTO). While the MTO IDF Curve lookup tool provides coefficients A and B, the equations I find for chicago design storms require more coefficients (n and gamma) from the research I found - based on Bentley StormCAD website. Can anyone recommend an online resource or textbook with examples? Is the go to place "Applied Hydrology" by Chow et al. (1988)? I have found an online version but somehow it is missing the pages I need - Chapter 14.4