Master item code book.
Item book.
Downloaded from the Colorado Department of Transportation website.
TRA4/18.10/INTERNET
Master item code book.
Library has 2013-
- 2023 (PDF)
- 2022 (PDF)
- 2021 (PDF)
- 2020 (PDF)
- 2019 (PDF)
- 2018 (PDF)
- 2017 (PDF)
- 2016 (PDF)
- 2015 (PDF)
- 2014 (PDF)
- 2013 (PDF)
Item book.
Library has 2001 - 2010 and 2012.