- All in-place specification requirements.
- The WMA technology proposed and the asphalt producer/contractor are approved as per CDOT Colorado Procedure (CP) 59.
Guidance on Cold Weather Paving This time of year presents the challenge of cold weather paving. Resources: Waiver Release Example and CAPA Technical Bulletin Cold Weather Paving. NAPA Pub. QIS 118 Cold Weather Compaction, RMAEC Webinar: Best Practices for Cold Weather Paving view webinar
APWA-Colorado Chapter/CAPA Asphalt Technology Scholarship Program
Attention - Colorado Public Works Officials/Consultants – Applications are now being accepted for the week long Short Course in Asphalt Technology at the National Center for Asphalt Technology (NCAT) at Auburn University in Alabama. Tuition Waived and $800 stipend for travel and lodging. Application Deadline: Dec. 3
Course Information
Application Information
The APWA Colorado Chapter will be hosting the 2011 APWA Congress in Denver on September 17-25, 2011. CAPA is a Mt. Elbert sponsor of the event. Additional sponsors are needed to support the APWA Colorado Chapter to host this event. More info is available.
Thin Lift Overlays for Pavement Preservation – Agencies are being forced to stretch road improvement budgets and to maximize the number of roadways being repaired and improved. Thin lift overlays are a tool in the box for pavement preservation. Best practices for material selection need to be followed when using thin lift overlays. In the Pueblo area, a new thin lift gradation (SX Modified) has been developed with a 3/8” nominal maximum aggregate size (read more).
- Deferred Maintenance & Potholes: It’s that time of year again – heavy snow falls, the spring thaw, and potholes. Here are a few recent news items that underscore the connection of potholes to deferred maintenance.
- Potholes Put Dent in City Coffers USA Today, March 11, 2010; The pothole problem is unlikely to improve unless more money is spent to maintain roads, says Peter King, executive director, APWA. "What we are seeing is the result of deferring maintenance over time," King says
- Sustainable Solutions to Pothole Repair – “Iowa State Showcases Innovation in Asphalt Technology" KCCI TV8, Des Moines, March 5"
- Creative Campaign Sparks Interest in Funding Shortfall CAPA member EZ Street has launched a campaign to bring attention to the poor state of America's roads. "The Spoken Wheel" campaign is sending hubcaps to leaders in pizza-sized boxes highlighting facts about the nation's deteriorating roadways.
- The Hole Story – Facts and Fallacies of Potholes, published by the APWA, this handy booklet provides agency personnel with the information to explain the downward spiraling effect of deferred maintenance. Complimentary copies are available from the CAPA Website or office by contacting office@co-asphalt.com
Asphalt Pavement Design Guide – Final Review CAPA has partnered with the Colorado Association of Geotechnical Engineers (CAGE) to develop a new Guideline for Flexible Pavement Design in Colorado. The intent of the guideline is to update and optimize asphalt pavement designs in Colorado. The Guideline is in Pre-Final form. Comments should be directed to Alan Lisowy, CAGE, 1st Past President, at alan@hpgeotech.com
Colorado Springs Develops New Pavement Design Manual The Engineering Department of the City of Colorado Springs have finalized a new Pavement Design Manual (Standard). The manual was developed in cooperation with industry and includes a number of changes that are expected to improve performance and reduce premature distress in pavements.
SEVERAL ASPHALT PROJECTS RECOGNIZED AT APWA AWARDS LUNCHEON
The APWA Colorado Chapter held its Annual Awards Luncheon on 
Monday January 25, 2010. 24 different projects/programs were recognized including a number that involved asphalt paving. In addition, Tom Clayton of the Rocky Mountain Asphalt Education Center, recognized the 2010 recipients of the joint CAPA/APWA Asphalt Technology Scholarship Program. Complete Award information is included in the latest issue of Colorado Public Works Journal Copies can be obtained by contacting Don Ludwig at donludwig@comcast.net Congratulations to all 2010 APWA Award Winners.
UPDATED ASPHALT PAVEMENT DESIGN GUIDE NEAR COMPLETE!! The Colorado Association of Geotechnical Engineers (CAGE) is developing a Guideline for Flexible Pavement Design in Colorado The guideline is near complete and is expected to be submitted to the CAGE Board of Directors for approval later this month. The intent of the guide is to update and optimize asphalt pavement design in Colorado. For more information, contact Work Group Chairman Jim Noll, Kumar & Associates, at jnoll@kumarusa.com.
Urban Drainage and Flood Contorl District continues the moratorium on the use of "Pervious" concrete pavements After the results were delivered to Kem MacKenzie at Urban Drainage from a report BY Mike Skinner with CTL/Thompson, Inc,. To see the report you can click to the UDFCD web site here
RMAEC To host 1/2 day seminar on Managing your Maintenance Dollars
This seminar is designed to help you with the decision making when it comes to your Hot Mix Asphalt (HMA) Pavements.
The information presented in this seminar will include:
• Maintaining your existing HMA pavements
• Methods of repairing asphalt pavement
• LEED’s credits and Green HMA paving
• PMS- Pavement Management Systems
• Consumer Beware of the Asphalt Gypsies
For More information
here
INTRODUCING ASPHALT MAN!!! Pitkin County has taken a very innovative approach to public education and outreach in an attempt to inform citizens about the needs of their local roads. Brian Pettit, Public Works Director, Pitkin County has taken a unique, fun and creative approach to informing and involving its constituency about the needs of its paved road system in preparation for a potential property tax increase (no decision on this yet) in the fall. Roads, asphalt and deterioration just do not seem to be “sexy” enough to grab people’s attention. They have created a superhero named “Asphalt Man” has been developed and informative cartoons have been running in the local papers for the last few weeks. A website has been developed www.knowyourroads.com
CHANGES MADE TO TRENCH COMPACTION STANDARDS
The City of Colorado Springs has approved changes to its Streets Standards as a result of the joint Trenching/Subgrade Work Group. Representatives of the City of Colorado Springs, El Paso County and the construction industry participated. Highlights of the changes are included in a memo from the City Engineering dated January 31, 2008 . It provides highlights of the changes made in SECTION 200. Probably the two biggest changed are the requirements for density testing of trenches at 2 foot vertical intervals and one test per every service line. The changes become effective April 1, 2008. For more information contact Gerald W. Banks, P.E., City Engineering, (719) 385-5407 or jbanks@springsgov.com
ASPHALT IS CLEAR WINNER IN RECENT ALTERNATE BIDS WITH CONCRETE - Asphalt pavement has been selected as the clear winner in two recent alternate bids. Based on information from CAPA, the Town of Elizabeth allowed an asphalt option for the first time ever and asphalt was selected for the 20,000 ton street improvement project. Also, El Paso County allowed a concrete option for the planned reconstruction of Academy Blvd. However, asphalt was selected.
CAPA PARTNERS WITH MGPEC TO ESTABLISH A RAP TASK FORCE
A new task force is being established with the Metropolitan Pavement Government Engineers Council (MGPEC) regarding the use of recycled asphalt pavement. Tom Clayton attended the June meeting of the MGPEC Board of Directors meeting and proposed a joint task force that would discuss “best practices” and new developments regarding the use of recycled asphalt pavement. A meeting has been scheduled for August 28th in the RMAEC training room. For more information or to become part of this effort, contact Tom Clayton at tomclayton@co-asphalt.com or at (303) 741-6150.
LTAP Publishes RMAEC Education Information
Check out the Summer Newsletter of the The Colorado Local Technical Assistance Program (LTAP). The front page of the newsletter is devoted to asphalt education and the benefit of training for personnel involved in street improvement programs. To see the article click here!
CAPA PUBLISHES INFORMATIONAL BROCHURE ON THE USE OF RAP
CAPA has published an informational brochure concrening the use of Recycled Asphalt Pavement (RAP) in HMA mixtures. a copy is available by using the link here.
Tom Clayton is working with Local Agencies to discover the current level of use of RAP and the procedure to increase the percentages used. If you have information to share with us concerning RAP usage, contact Tom.
BEST PRACTICES IN USE OF RECYCLED ASPHALT PAVEMENT
Once again the City of Lakewood is leading the way on innovative use of hot mix asphalt pavement. The 2007 Lakewood street improvement contract includes the following provision that allows 30% RAP. Here is the provision:
[Mixes used on collector streets overlay shall not contain more than 20% RAP. Mixes used on all patching and residential streets overlay shall not contain more than 30% RAP.]
The 2007 City of Lakewood Asphalt Specification is available here. For more information, contact Chris Jacobsen of the City of Lakewood (303) 987-7951.
REGIONAL ASPHALT SPECIFICATIONS COMPLETED
The effort in Colorado Springs and El Paso County to develop joint regional asphalt specifications has been completed. The intent was to reduce the variation of specifications from one agency to another and to develop a uniform specification throughout the "Pikes Peak Region." To download the "PikesPeak Regional Specification use this link. For more information or for assistance, contact Tom Peterson at tompeterson@co-asphalt.com.
IMPROVE PROJECT SUCCESS THROUGH IMPROVED JOB SITE COMMUNICATION
Communication and job site cooperation is a key to project success. One very important way to ensure that a project gets started off on the right foot is to have a productive and meaningful pre-paving meeting. A joint CAPA/CDOT Task Force has been established to revamp CDOT's Pre-Paving Meeting Agenda Guideline. The guideline has been streamlined and updated. It is in pre-final format and available for review and comment. For comments, please contact Tom Clayton at (303) 741-6150. It is expected that the final Guideline will be available for use on all CDOT projects by June 1.
