This campground seems almost brand new. There are no hookups and no water on site, though there are several vault toilets.
Each site has a picnic table, fire ring, tent pad, and path down to a rocky beach on the Columbia. The sites are definitely not large enough for most RVs, so I'd consider this tent or van camping only.
There's not much shade at the sites, but you can get out of the sun near the river.
The biggest drawback to this spot is that it's just of the highway. You can and will hear air brakes all night. For me, staying on the Columbia was worth it.