This document shows a Gantt chart comparing the scheduled and actual completion dates for various milestones of a construction project from 2006 to 2008. The baseline schedule estimated substantial completion by November 13, 2006 but there were a number of delays pushing the completion dates back. The delays can be grouped into six periods and were caused by issues like start delays, production problems, design defects, fire rating impacts requiring rework, and slow drywall installation. The project was ultimately completed on June 6, 2008, over a year later than the original baseline schedule.

10. 2006 2007 2008
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Schedule
Data Date Substantial
Completion
3/30 (A020390) 6/6 (A61610)
Bldg B Hang GWB (Bldg A Hang GWB) Owner Extension
DD 10/07/05 11/13
Baseline
Schedule
8/30 (A61610) 10/6 (A020390)
(Bldg A Hang GWB) (Bldg B Hang GWB)
2/21
+100 SC; +122
DD 4/6/06
4/2 Hang GWB 4/26 Hang GWB
Bldg A (A61610) Bldg B (A620960)
DD 1/29/07 8/15
Delay Period 1 +175 SC; +202 GWB
Start Delays
5/7 Hang GWB 5/28 Hang GWB
Bldg A (A61610) Bldg B (A620960)
Delay Period 2
R&D Production 9/17
+33 SC; +32 GWB
Delays & Transition
DD 3-26-07
8/17 Hang GWB 9/7 Hang GWB
Bldg A (1220) Bldg B (7225)
+73 SC; +102 GWB
Delay Period 3 DD 7/31/07
Fire rating impacts in bathroom; demo
and repair of defective work
3/20 Hang GWB
Bldg B Actualized
6/6 Complete GWB
Delay Period 4 +195 GWB Installation
R&D defects & Owner RFI's
+ 39 CD
Delay Period 5
R&D defects & Owner RFI's
Delay Period 6
Drywall Installation Delays