Interstate Power Company

Clinton, IA

Bus Roster

Fleet Number(s)	Thumbnail	Year	Manufacturer	Model	Engine	Transmission	Notes
320, 322, 324, 326, 328		11/1964	GMC	TGH-3501
346, 348		10/1967	GMC	TGH-3501
358, 360		11/1969	GMC	TGH-3301
362		9/1970	GMC	TGH-3301

Dubuque, IA

Bus Roster

Fleet Number(s)	Thumbnail	Year	Manufacturer	Model	Engine	Transmission	Notes
200, 202		4/1945	GMC	TD-4007
204, 206, 208, 210, 212, 214, 216, 218, 220, 222		10/1946	GMC	TD-3206
224, 226, 228, 230, 232, 234, 236, 238, 240, 242		7/1947	GMC	TDH-3207
244, 246, 248, 250, 252, 254, 256		9/1948	GMC	TDH-3610
258, 260, 262, 264, 266		9/1950	GMC	TDH-3612
268, 270, 272, 274		7/1954	GMC	TDH-3714			To Keyline Transit.
276, 278		4/1959	GMC	TDH-3714			To Keyline Transit.
280, 282, 284, 286, 288, 290, 292, 294		11/1960	GMC	TDH-3714			To Keyline Transit.
312, 314, 316, 318		7/1964	GMC	TDH-4519			To Keyline Transit.
330, 332, 334, 336		2/1965	GMC	TDH-4519			To Keyline Transit.
338, 340		10/1966	GMC	TDH-4519			To Keyline Transit.
342, 344		7/1967	GMC	TDH-4519			To Keyline Transit.
354, 356		6/1969	GMC	T6H-4521			To Keyline Transit.