Inspect materials storage facilities to determine if the materials are stored in a manner that will prevent their deterioration and or impact the environment. Covers, wooden platforms, hard clean surfaces or any combination may be required of the Contractor. Reject any material that becomes unfit for use due to improper storage. Contractors must obtain Department approval prior to storing materials on the right of way. Storage space off the right of way is at the Contractor's expense. Refer to the Federal Highway Administration (FHWA) for Contractor responsibilities.