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.
But if a nail grows too quickly, the balance between these forces changes. The additional force from the growth pulls on the nail bed, and in response to that pull, the nail edge becomes more curved. [ 10 Things You Didn't Know About You ]. In addition, the shape of the nail plays a role in making it ingrown.