Construction Cost & Analysis

WEEK 3

COURSE: CONSTRUCTION COST ANALYSIS AND BIDDING

LEVEL: GRADUATE

ASSIGNMENT # 3

TOTAL POINTS: 100

LEARNING OBJECTIVES:

After successfully completing this assignment, students will be able to:

• Interpret construction drawings and prepare detailed quantity take-offs

• Calculate labor productivity rate

• Calculate ownership and operating costs for equipment

Note: Your work should be professionally presented and all the steps for calculations must be included.

WEEK 3

Q1.

If 1,490 compacted cubic yards of in-place soil is required for a project, how many loads of import will be required? The import material has a

swell of 14 percent and shrinkage of 95 percent. The trucks can haul 12 loose cubic yards. 20 points

Q2.

Determine the amount of excavation needed for the continuous footings shown below. A two-foot working distance is required and the excavation

will be sloped 1:1.75 (1.75 vertical feet for every horizontal foot). Also, determine the amount of backfill needed for the continuous footing and

foundation in compacted cubic yards. 40 points

WEEK 3

Q3.

An asphalt paving crew is used to pave a 500-foot by 300-foot parking lot. The parking lot will be paved in 12-foot-wide strips running the long

(500-foot) direction. The machine paves 11 lineal feet of 12-foot-wide parking lot per minute. A single lift of asphalt will be used on the parking

lot. After completing a pass, it takes the crew 10 minutes to turn the paving machine around and get ready for the next pass. The crew consists of a

foreperson, six operators, and a laborer. Using a system efficiency of 50 minutes per hour, determine the number of labor hours required to place 1

lineal foot of parking lot 12 feet wide. 40 points

Quote of the Day:

“When we focus so hard on the tiny details, we leave ourselves open to miss the bigger picture. Details matter and so does an eagles point of

view.”― Rosangel Perez