I'm routing a detention basin using PondPack and would like to be able to limit the end time of the hydrographs. I tried editing the end time in the hydrograph manager but the changes I make there have not been carrying over to my final results report.
My output shows a hydrograph extending to...
Are there any resources available to give a rough estimate of the water demand based on the building use and the floor area? I don't want to go into too much detail with the number of employees or the number of fixtures. For example I have a 15,000 SF pharmacy and a 5,000 SF restaurant and I'm...
Thank you both for your responses. I appreciate your input.
We have been using the formulas that TerryScan referred to.
Intuitively I was thinking that there should be two formulas (for a design speed). I thought that you would have one formula for a lane shift where all of the lanes are...
Does anyone have any experience with the requirements for a lane transition/offset taper?
I have located the formula in Chapter 6 of the MUTCD which notes that you can use the L/2 for a transition taper where L is the taper length for a merging taper.
I have been told that the L/2 is only...
Jheidt2543, Thanks for your input. I have spoken with a paving company and they don't anticipate any problems with that paving and the heat transfer through the 4" of aggregate.
SMP
Thanks for the reply Eric. Yes we have looked at using LWA such as Norlite or Stalite. They are approximately 60 lb/ft3 and are still do heavy for our section. The foam boards are only about 2 lb/fts and provide compressive strengths up towards 100 psi.
We don't want to modify the 7" of...
I'm sorry if I wasn't clear with my post. Maybe, "void" wasn't a good way to describe the situation. The original pavement section was intended to be this (from the bottom up).
top of garage deck slab
waterproofing drainage board
4-18" VDOT 21A well graded aggregate
5" base asphalt
2" of surface...
We have a situation where we need to fill a void on top of a garage slab that has already been poured with a ligth weight material that has sufficient strength to act as a road base. It has been suggested that we use a styrofoam product like Foamular from Owens Corning. We plan on providing a...
We have evaluted the LWA and agree that we can not pave on it due to it's uniformly gradation. The engineer at Stalite recommend 4" of open graded aggregate (the VDOT 21A stone) on top of the Stalite so that we can pave on this. We are still having a problem with this section (with the 4" of 21A...
Thank-you Ron and BigH. The reason that we have a subbase, Base and Surface asphalt is that the County requires this pavement section. We are required to have 2" surface asphalt and 5" of base asphalt. The asphalt is required by Code to be on a subbase having a CBR of 30 or higher. We had...
Thank-you for your responses. I have been to escsi.org and have found that resource to be helpful. I am waiting to hear back from them on one of the publications that they don't have posted on their web site.
Ron, I didn't give you the full story. The road that we are providing a section for...
Where can I find typical CBR values for Lightweight aggregate? We would like to use a LWA for a road subbase but can not find documentation of the CBR values for any of the products that we have evaluated.
IBC. I found the information that I am looking for. The fire separation depends on the percentage of unprotected openings. (Table 704.8).
Thank-you for responding.
I am a civil engineer working on a residential wood frame multi-family development. I inherited this project from an associate that is no longer with our firm so I don't know all of the history. It has come up during building permit review that there is an issue with the building being on the...
I'm trying to find a table providing preliminary estimates for sanitary sewer fixture counts. Ideally it would include single family homes (possibly with a range of square footage or bathrooms)and apartments (w/ range of 1,2 efficiencies). Does anyone know where I can find a table of this sort...
