Typically, costs for installing a concrete access ramp fall between $1432 and $2377 and will vary with the size and features of construction as well as with your choice of finishes and landscaping elements.
Causes of Fingernail Ridges, Pitting and Curved Nails. 1  Longitudinal ridges (running from the cuticle to the free edge of the nail) may be due to aging and not a sign of any disease.  Nail beading, where the nail loses its smooth curvature, is also a normal part of aging.
Why do fingernail curve down? What makes my fingernails curve down at the edges? For a while I thought It was because I used to cut them badly - but even since I started cutting them straight across, they curl down and cut into my fingers. Am I doing something wrong, or is this just genetic, or what?