Readers ask: How To Read Construction Grade Stakes?

How do you read grading elevations?

For example, given a benchmark at 100.00 and a grade elevation at 101.43, the difference is -1.43, which indicates that the elevation is 1 foot and some odd inches above the benchmark. Multiply the decimal part of the difference times 12 to find the number of inches. For example, 0.43 x 12 = 5.16.

How do you use grading stakes?

Pound grade stakes into the ground on each end of the area you need sloped. The stake at the top of the slope is called the hinge. The stake at the bottom of the slope is called the toe. Determine the desired grade—typically 1-2% (1/8″ per foot to 1/4″ per foot) is enough to provide enough runoff.

What is a construction grade checker?

A grade checker works in the construction industry, typically on roadways, to set grade stakes meant to guide equipment operators on sloping highways and embankments. In this career, you set these grade stakes using hand tools, measuring instruments, and using specified ratios.

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What is a 6% grade?

Driving down a highway you may see a road sign that reads “6% Grade” or “Steep Grade.” The grade of the road is, essentially, its slope. A six percent slope means that the road elevation changes 6 feet for every 100 feet of horizontal distance (Figure 1.3). Figure 1.3. A road climbs at a gradient of 6 percent.

How do you find the elevation between two points?

To calculate percent slope, divide the difference between the elevations of two points by the distance between them, then multiply the quotient by 100. The difference in elevation between points is called the rise. The distance between the points is called the run.

How do you use stakes to level ground?

How to Use a Line Level to Level Ground

  1. Find a length of string and two wooden stakes.
  2. Tie one end of string to a wooden stake and hammer it into the ground at the highest elevation in the area.
  3. Hammer in the second stake across the area you want leveled.

What do Survey stakes mean?

Stakes with simple flags and basic identification: The stakes shown here all indicate an access route to be used for equipment and trucks to get to a proposed pipeline right of way. The “H310″ is the EQT name for the 30” OVC pipeline.

What is the grade chart?

The 4.0 Scale

Percent Grade Letter Grade 4.0 Scale
93-100 A 4.0
90-92 A- 3.7
87-89 B+ 3.3
83-86 B 3.0

What is my grade percentage?

The grade percentage is calculated by dividing the earned points by the total points possible. The formula is: Points earned / Points Possible, then that percentage is compared to the given scale.

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How much does a grade checker make?

Construction Grade Checker Salary

Annual Salary Weekly Pay
Top Earners $79,500 $1,528
75th Percentile $73,000 $1,403
Average $53,615 $1,031
25th Percentile $33,500 $644

What is the height of Levelling staff?

Levelling staffs are usually 2 to 5 m long, foldable or telescopic, and made of plastic-coated wood or aluminium. Self-reading levelling staffs are usually graduated in metres, decimetres, and centimetres. These graduations are upside-down so that you can read them with a telescope.

How do you read staff leveling?

The staff reading is the reading on the staff at which the horizontal hair appears to cut the staff. A staff reading consists of 4 digits. The first digit represents the whole number of meters, the second digit represents decimeters, and the third, and fourth digits represent millimeters.

How many types of leveling staff are there?

The following three types of self reading staffs are available: (a) Solid staff: It is a single piece of 3 m. (b) Folding staff: A staff of two pieces each of 2 m which can be folded one over the other. (c) Telescopic staff: A staff of 3 pieces with upper one solid and lower two hollow.

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