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.
To build a 30 ft. wooden ramp, you will need the services of two carpenters ($70 per hour) for two days, costing around $2,240 in labor. For building a concrete ramp, you can hire a handyman or a contractor at $60-$90 per hour.