I see that for an additional $100 dirt can be distributed by the truck with a conveyer belt. Is there something similar available for a gravel delivery?

Yes, conveyor truck delivery is available for $130/hr. Minimum for conveyor delivery is 7.5 yds. Time starts when the truck leaves the yard and ends when the job is complete. Since a standard deliver & dump is $30 in Salem/Keizer, the conveyor delivery can be a time-saving way to avoid doing the heavy lifting yourself 🙂 Call for details, happy to answer questions

Have you called them to ask ? They will tell you.