1. Railroad Defenses of the Blue Grass: The Defenses of the Kentucky Central Railroad, Lexington & Frankfort Railroad and Kentucky River during the Civil War (1861-1865) by Charles H. Bogart and William M. Ambrose (Yellow Sparks Pr, 2012).
The title gives you a good idea of the scope, and there is also some limited information about a number of Confederate raids that tested these defenses. In addition to the text, the book is a remarkable compilation of photos, drawings, and maps. There's no web link for online ordering, but the following information came with the book:
Yellow Sparks Press, 201 Pin Oak Pl, Frankfort, KY 40601
$25 + $4 shipping. Contact: firstname.lastname@example.org
2. Bluejackets in the Blubber Room: A Biography of the William Badger, 1828-1865 by Peter Kurtz (Univ of Ala Pr, 2013).
This 'ship biography' traces the William Badger's entire service, as merchantman and whaler before the Civil War to a supply ship during the conflict. It supported the North Atlantic Blockading Squadron at places like Beaufort and Wilmington.