Flood Waters washed out the bridge that connects Hwy 21 to the campsite in 2016.  

UPDATE:  Grayback Gulch is OPEN and a wonderful little campground a short drive from Boise.    No hookups, but the toilets are clean and there are two fresh water pumps.   Fishing is available in nearby Moores Creek.  If you can get a campsite along the north end, you may have walking access to a small stream that burps and gurgles down the hillside.   There may be ATV traffic as it's a popular location for families.  I really like using this as a quick 'getaway' overnight.