Heights, Big Jim is still there and still whistles at 7a, noon, 1p and 5p.
JEA Waterworks laboratory, museum and visitors center
JEA fell down on the museum and visitors center, so don't bother trying to find them. Thanks to the events of Sept 11, and the subsequent homeland security measures, this site is now a reservoir and JEA green training facility, with no real public access. It should be noted homeland security is the reason for the fence, not lack of safety in the area. There is a building that needs to come down near the creek (and possibly more than one). JEA is upgrading the reservoir that is on the Laura St side, and making some improvements to the Main St reservoir also.
It is very unlikely the "park" will ever even give the impression of welcome, and hopefully when the Creek/park system is master planned, designers can figure out how to minimize its Fort Knox-like interruption of the Confederate to MacPherson parkway. It should also be noted that at one time, the site had a radio station and miniature golf course on it...