1. Compute L, T, E, LC, Δ (delta) and stations of the PC and PT for the circular curve with the given data of: R= 2200’ and M = 19.5075 and the P.I. station = 28+37.62. Express answers to .01 (ft.).

2. Compute L, T, E, M and Δ (delta) and stations of the and PT for the circular curve with the given data of: R = 2850’ ft. and LC = 985.7122 and the P.C. station = 62+34.17. Express answers to .01 (ft.).

3. Compute L, M, E, LC, Δ (delta) and stations of the PC for the circular curve with the given data of: R= 1250 and T = 237.637 and the P.T. station = 15+14.13. Express answers to .01 (ft.).

4. Tabulate the deflection angles and total chords on full (+00) and half (+50) stations to lay out the circular curve in Problem 1. 5. Tabulate the deflection angles and total chords on full (+00) and half (+50) stations to lay out the circular curve in Problem 3

Assuming Green-Ampt infiltration and: porosity = 0.5; initial moisture content = 0.2; saturated hydraulic conductivity = 0.65 cm/hr; wetting front suction = 5.5 cm and rainfall from 0-1 hr = 0.6 cm.hr and 1-2 hr = 3 cm/hr.

a) Determine the time ponding first occurs in this storm.

b) Determine the depth of infiltration at depth of runoff generated in each 1 hr interval.

c) What is the depth of the wetting front at the end of the two hour storm?

For the column and beam layout, find the required slab thickness and spacing of #4 reinforcing bars, if the loading in addition to self-weight, is 2 point loads of 2 kips at the third points of each span (4 point loads total) f'c =4000psi fy = 60ksi d = hSLAB - 1in,
weight of reinforced concrete is 150pcf, width of beams - 12in, space between borders of beams - 7ft.

For the column and beam layout, find the required slab thickness and spacing of #4 reinforcing bars, if the loading in addition to self-weight, is 2 point loads of 2 kips at the third points of each span (4 point loads total) f'c =4000psi fy = 60ksi d = hSLAB - 1in,
weight of reinforced concrete is 150pcf, width of beams - 12in, space between borders of beams - 7ft.

A point within an embankment slope of sand has a total vertical normal stress (y) of 100 kPa, a total horizontal normal stress (x) of 60 kPa, a horizontal shear stress (xy) of 20 kPa, and a pore water pressure of uo. The sand has a peak effective friction angle of 30 degrees. (a) Determine the value of uo that would cause the sand to fail in drained shearing. Assume the total normal stresses and shear stress remain constant. (b) For the above value of uo, determine the major and minor principle effective stresses. (c) For the above value of uo, determine the orientation of the major principle stress (in degrees from vertical, clockwise or counterclockwise)

- Based on the statement below, prepare a personal development plan based on this person's goals, please answer in paragraphs (maximum 1000 words)

My goal is to become a leader in the construction industry. The construction industry is my passion, I have had 3 years of experience in fields such as formwork, aluminium window and door installation, general labouring on site and traffic control.

whats the difference between SCS curve number and Rational method with
USGS regression method results from stream stats:
Which method is most useful?why?
why they are different?
how different in prediction?

Topic Green Building Finance:

Research and discuss innovative financing options and tax incentives for green building. (Note: Briefly respond your answer in 1-2 paragraphs minimum.)

The clay layer below is covered with a layer of fill as shown. Assume the fill is placed instantaneously.

1. Estimate the magnitude of primary consolidation settlement for the clay layer due to placement of the fill.
2. Plot the distribution of pore pressure with depth before the fill is placed.
3. Plot the distribution of pore pressure with depth immediately after the fill is placed.
4. Plot the distribution of pore pressure 10 years after the fill is placed.
5. Determine how long it will take to reach 90% of the final primary consolidation settlement.

Which type of foundation (isolated, mat, pile, for example) do you feel is the most economically sound, based on time, cost, and labor?

Since the preliminary estimate and further investigations indicated that Claire's project is feasible, it is now time to move from the initial concept to final design. In order to do so, Claire will need to consult an architect and an engineer. Thankfully, Claire had an old friend, Tony Tect, who owned a local architecture firm and was willing to help. Claire explained her ideas to Tony and he said he would be happy to produce some drawings for Claire within a few weeks.

Meanwhile, Claire asked Bob Builder if he could advise her about the selection of a design engineer. Bob recommended she talk to Angie Neer from Eager Engineers & Partners. The engineering firm was in Charleston, WV, as was Tony’s office. Tony and Angie had completed several projects together before and knew the value of working hand in hand during the design phase.

Two weeks passed before Claire, Tony, and Angie met to discuss Tony's drawings. After Tony presented his design, Claire made some minor suggestions, but in general was very pleased. Angie then commented on the design, which started a discussion that went on for another hour. Claire wasn't initially comfortable, but later she realized that such discussion is necessary in order to increase the constructability of a structure. Thus, it was advantageous to have structural decisions made early in the design phase and not when the building was already under construction.

After the meeting, Tony sat down on his desk and began to incorporate all the changes into the design. Angie returned to her office to get started on the design for the site preparation. Since Tony agreed to arrange the necessary permitting, Claire had the chance to concentrate fully on preparing the marketing information for the project. However, she realized that she needed to know more about construction project delivery. She had no idea what type of Construction Firm she should utilize for this project. She decided to get some advice from the developer, Bob Builder.

Bob replied to her with the following memo:

In construction Claire, you have several options for your delivery strategy, including: Design-Bid-Build (DBB), Design-Build (DB), and Construction Management (CM). DBB is a very common way to deliver a construction project using a traditional organization. DBB calls for a complete design before site work begins and then a single general contractor assumes all the responsibility for constructing the entire project usually on the terms of a lump-sum contract.

This answer did not really help Claire to understand which type of project delivery method would be most appropriate for her situation. Also, the methods of awarding a contract and the type of contract were confusing to Claire, as she has no prior experience being an owner. Before she could consider making a final decision, she needed more information and recommendations. Claire sent Bob an e-mail asking for a more detailed analysis. This is where you come in to help Claire make an informed decision.

Questions

• Which project delivery method do you recommend to Claire? Why?
• Based on the delivery method you recommended, should Claire use a contract that is awarded competitively or a contract that is awarded by negotiation? Why?

In addition to the main contract for the entire project, Bob informs you, the intern, that there will definitely be a sub-contract with a specialty contractor for the site-work on the project.

• Should the agreement with the site sub-contractor be a lump sum or a unit-price contract? Why?
• Should this contract with the site sub-contractor be awarded competitively or negotiated?

When chlorine is used for disinfection of drinking water, chloroform can be produced by the reaction of chlorine with residual organics in the water. For chloroform, RfD_oral = 0.01 mg/kg/d and SF_oral = 0.0061 1/(mg/kg/d).

1. Estimate the ingestion intake rate for non-carcinogenic and carcinogenic effects on an adult resident of a home receiving tap water with an average chloroform concentration of 65 mg/L.
2. Calculate the potential non-carcinogenic and carcinogenic health risks associated with this ingestion rate.
3. Are the risks presented considered acceptable by the EPA?