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Technical
Construction updates

MATERIALS AND CONSTRUCTION RELATED BULLETINS

The CDOT Headquarters Project Development Branch provides direction and guidance on the state wide pavement construction program. In this role, Construction Bulletins are issued to project offices that clarify policy and/or provide technical guidance. Here is a listing of recent Construction Bulletins. For more information, contact Tim Aschenbrener, Project Development Branch Manager at (303) 757-9799 or tim.aschenbrener@dot.state.co.us



Pre-Paving Meeting Agenda Guideline, June 2006

Cement Shortage, September, 2005

Retainage and Partial Payment of Subcontracted Items, May 2005

Work Zone Safety Requirements - NCHRP 350 Crash Test, April 2005

Soft Subgrade problems encountered during Paving - Feb 2005

Flagger Appearal Construction Bulletin Up Date, June 2004

Bituminous Pavers (Segregation) March 2004


Change Orders - Minor Contract Revisions, October, 2003

Emergency Project Procedures, September 2003

Longitudinal Joint Update, December 2002

Changes to HMA Specifications , November 2002

(Gyratory Compaction Angle & Air Voids), November, 2002

Timeliness of Test Results November, 2002

Roadway Smoothness Fog Seal Coat on Asphalt Pavements
After Diamond Grinding, June 6, 2002


Asphalt Pavement Workability June 2002

Compaction Angle for Gyratory Compactors, Issued May 31, 2002

Transporting Samples for Voids Acceptance, February, 2001




Use this link to view CDOT Construction Bulletins


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