Just a suggestion to the BoD, concerning the Nebraska Game and Parks Public Range program. Redtail WMA should be considered for a public range site, a minimal investment would be needed, and it is a reasonable distance from Lincoln.
Risk: They probably won't like the idea of people shooting over a body of water. It is a legitimate projectile escape concern, and I am sure they can fenagle it into an environmental concern.
Management: To negate this risk/concern, I would recommend having only people that are NRAROs that have taken a special class from the G&P would have the keys to the front gate. These ROs would work on a volunteer basis, and would also have their names and contact info on the G&P website so they could be contacted for appointments. I, for one, would be happy to donate a weekend a month working as an RO here (spending a good amount of that time slinging lead).
Risk: I did spot one tree stand, and the area is open to hunting. There is a permanent tree stand on private property to the east of the 1/4 section line
Management: Range would be closed for deer rifle season. Red flags, strobes and an alert siren, along with a crapload of signs, would be used when the range is occupied.
Risk: There is a house to the north, approximately 1/2 mile from the 1000m target area.
Management: In addition to previously recommended measures (ROs and target pits) I would recommend having a berm on the northern edge of that clearing, to further prevent projectile escape.
Location using Dwight NE as a reference point. Drive time from Lincoln is about 35 minutes. While there, I ate lunch at a diner in Dwight, and talked to some people. I basically asked how they would feel if that area became a public range. The idea was very well liked by the cafe owners, for obvious commercial reasons, and most of the locals had positive reactions.
Map of firing lines/points, limits of fire, general backstops, and already existing trails. For a public range, I would recommend putting target pits in to ensure minimal risk of projectile escape. Target pits would be at 40-60m intervals with driving trails next to them. The firing line into the dam could be moved as close to or as far from (max 280 meters) from the dam as desired, but I would recommend another driving path to get back there without having to cross the other range.