Horizontal Control Points – Spikes are used in hard surfaces. Survey spikes come with a round dimple or a square dimple in the top of the head. These spikes will drive through gravel, pavement, and packed soil. I use them specifically when traversing down the shoulders of roads. Use a 1/2" washer to stamp your company's info and the point number. Doing this will eliminate confusion on large jobs when working with multiple firms on projects.
 
Vertical Control - Used for temporary benchmarks. Can be placed in wooden structures, poles, and trees. These spikes have a 1" diameter head that allows the spike to be driven into a structure and have a raised edge to place an elevation "on". These spikes will not bend like large nails.
Reference Monuments - Spikes are great for implementing as reference monuments. Often times when a boundary line goes to the center of a road, I place a spike in the road. I then set a standard corner on the side of the road; this meets the Standards of Practice while making sure all my client's corners are marked. They are also great for marking section or primary corners that are located under hard surfaces. When you find a "called for monument" under 6" of pavement and 6" of gravel, locate the monument, then fill the hole and set a spike in the hard surface above the monument.
Repetitious Measurements - This is a neat use for Survey Spikes. Use the spikes for Level Peg Test, EDM baseline Calibration, and Tribrach adjustments. Mark the distances you typically use for these test with survey spikes. This will save you time and is good practice we should all use.
|
|
