Previous Construction Bid Lettings
| Notice To Contractors | Awards | Bid Tabs |
| 1987 - 1991 | 2006 | 2011 |
| 1992 - 1995 | 2007 | 2012 |
| 1996 - 1998 | 2008 | 2013 |
| 1999 - 2001 | 2009 | 2014 |
| 2002 - 2005 | 2010 | 2015 |
| 2006 - 2011 | 2011 | 2016 |
| 2012 - 2015 | 2012 | 2017 |
| 2016 | 2013 | 2018 |
| 2017 | 2014 | 2019 |
| 2018 | 2015 | 2020 |
| 2019 | 2016 | 2021 |
| 2020 | 2017 | 2022 |
| 2021 | 2018 | 2023 |
| 2022 | 2019 | |
| 2023 | 2020 | |
| 2021 | ||
| 2022 | ||
| 2023 |