Atlas of the Biodiversity of California. About the Atlas. The Atlas of the Biodiversity of California is a fascinating guide to the state's biological resources. This book is a bound collection of maps, stunning photographs, and artistic illustrations â all depicting the state's rich diversity of plant and animal species.
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.
Line Cost. Concrete pad: excavate, prepare, pour, and broom finish 500 sq.ft. of 4 thick concrete slab with rebar, wire mesh, and aggregate/sand base. Include 20 feet of pad access ramp-header. $3.39.