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Looking for additional information to learn more about selecting the right liner (PVC/HDPE/EPDM). This is probably a long shot but thought I would give it a try. Any videos, pdh seminar documents or other useful information is what I am after. Thank you in advance.

I cannot figure out the correct answer to this project. Looking for some assistance if someone is familiar on how to solve this problem. 

Anybody know where I could find free AutoCAD blocks of regulatory signs and pavement markings. Haven't had any luck. Tried to find time during the day to make them myself but haven't had much between chasing down Architects for information and paying their bills on time.  Thanks!

My firm was just hired as city engineer for a small municipality. Currently working with a City to extend a water service to a commercial building owner (owner currently uses private well & septic tank). Business involves washing larger motor homes & recreational vehicles. His septic...

Does anyone know how to model a flapgate in HydroCAD? The reviewer for this project is asking for my calculations on the effect a flap gate will have on the overall storm drain system for my site.  Any help is greatly appreciated.  Matt

For the last 3 months, I have been going round and round with a reviewer on my HydroCAD model of a 5-acre site. Looking for some help on modeling advice from members here so that I can put this project to bed and never sign another proposal for a job within this certain rural water district...

I am having a brain block today. I am reviewing a facilities plan for a community and am having difficulty determining how the Equivalent Dwelling Unit was calculated? If anyone could share what they know, I would greatly appreciate it. Thank you in advance.

I have spent numberous hours searching the internet for any reference material on how to properly place isolation and/or construction joints within a parking lot. Just wondering if anybody has ever taken a seminar or found any reference material on this subject. I would love it if I could find...

HELP What is the difference between HS-20 loading and HL-93 loading? What section in the AASHTO is it in? I haven't been able to purchase extra study material outside of what my company has due to financial constraints. owillis

Could others post what they did once they found out the passed the PE Exam? I thought I had come across a post with this information but can't seem to find it. Thanks in advance, owillis, PE (once my state takes three months to process my app & money)

I passed!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :beerchug: :PASSED2: :multiplespotting: Sorry for the excessive celebration but I have had to report negative posts three times previous! To others who have to retake or taking for the first time, use this forum or questions and support. It is great!!!!

I am in need of some help on this problem. I have posted the problem and solution. The part of the solution that is throwing me for a loop is when they determine the "area of cross section". I just don't follow how they are obtaining their numbers. It seems the they are multiplying the distance...

Can someone explain this problem to me? Why did they start at day 1 and not 0? Has anyone solved this problem using the 4-box method (as described in the CERM manual) and then solved the problem after accounting for the delay of activity E? I could really use some help on this problem. Thanks...

Problem: A municipal landfill utilizes a compacted 1.08 m thick clay liner that has a hydraulic conductivity of 1 x 10-7 cm/sec. If the depth of the leachate above the clay liner is 30 cm and the porosity of the clay is 55%, the time (years) required for the leachate to migrate through the...

I am looking for some ideas on how to better organize my design binders for each subject. Please post how you organized (tabs, numbered tabs with a table of contents, index sheet, etc.). I need to figure out a better way to access notes and problems quickly during the exam. Maybe you designated...

A horizontal curve is going to be constructed for a paved county road in northern Michigan. The pavement is 20 ft wide with 4 ft shoulders. The legs of the proposed curve are perpendicular. A design speed of 60 mph is desired. What is most nearly the minimum radius needed to provide a design...

A soil sample has a water content of 20%, a degree of saturation of 80%, and a specific gravity of 2.68. The dry unit weight is most nearly _____ A moist soil sample in a tare can is put on a balance and the mass of the soil plus can is found to be 48.30 g. After oven drying, the mass of the...

A clay deposit has a unit weight of 100 lbf/ft3 and an unconfined compressive strength of 2000 lbf/ft2. What is most nearly the depth at which the horizontal soil pressure is zero? After some reading, I found equation 35.44, whch defines unconfined compressive strength as P/A. This would make...

I have a coulple of questions from a study session but don't have the answers. I have what I believe is the correct answer but would like the board's knowledge and wisdom to verify. Here we go: 1. What kind of drilling equipment should be utilized if a contractor is having trouble advancing a...

Still feeling bad about failing the PE exam once again. This was my best performance and my third try. Hoping that this spring will work out. Anybody else out there in the same boat? :winko: