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688 Geiger Ct
Colorado Springs, CO 80915
Phone: 719-385-5934
Fax: 719-385-6834
Email: streetdivision@spr. . .
Hours: 8:00am - 5:00pm





City of Colorado Springs / Streets / Pavement Rehabilitation/Resurfacing / Tire Rubber Asphalt / Years & Innovation Test Zones

Years & Innovation Test Zones

Click here for a map of the Terminally Blended Tire Rubber Asphalt sections detailed below.

2006 innovation test zones of 25.34 lane miles:

  • Union Boulevard from about 600 feet north of Austin Bluffs Parkway to Academy Boulevard: This high-volume section was milled and overlaid with a 1 inch layer of traditional dense graded asphalt followed by a one inch cap of terminal blend tire rubber asphalt. This mix used 10 percent tire rubber content and 3/8 inch aggregate.  
  • Chelton Road from Airport Road to Marion Drive (one block south of Palmer Park Boulevard): This low-volume section was milled and overlaid with traditional asphalt followed by a one inch layer of tire rubber asphalt. This mix used 10 percent tire rubber content and 3/8 inch aggregate.
  • Wooten Road from Platte Avenue to Galley Road: In this section, half of the road was milled and overlaid with new traditional asphalt, followed by a one inch layer of tire rubber asphalt. The other half of the road had a one inch layer of tire rubber asphalt placed over the top of the existing asphalt, after crack sealing the surface. This mix used 10 percent tire rubber content and 3/8 inch aggregate.
  • Briargate Parkway eastbound from Lexington Drive to Union Boulevard: In this section a one inch layer of tire rubber asphalt was placed over the top of the existing surface. This mix used 10 percent tire rubber content and 3/8 inch aggregate.

2007 innovation test zones of 27.10 lane miles:

  • All lanes on Union Boulevard from Pikes Peak Avenue to 1000 feet south of Austin Bluffs Parkway: In this section, as part of the Union Improvement Project, a 1 inch layer of tire rubber asphalt was placed over the top of a new 1 inch layer of traditional asphalt. This mix used 15 percent tire rubber content and inch aggregate.

2009 innovation test zones of 26.03 lane miles:

  • Circle Rd from Janitell Rd to Airport Rd:  In this section, a 1 inch layer of tire rubber asphalt was placed over the top of 1 year old dense grade traditional asphalt.  This mix used 15 percent tire rubber content and a inch, harder aggregate.
  • Academy Blvd from 501' north of SH83/Kelly Johnson Blvd to Shrider Rd:  In this section of major arterial roadway, a 1 inch layer of tire rubber asphalt was placed over 1 year old existing asphalt.  This section also used the 15 percent tire rubber content in the mix and the inch, harder type of aggregate.

2010 innovation test zones of 1.18 lane miles*:

  • Voyager Parkway (Southbound) from the south side of Ridgeline Drive Intersection to 1000' southbound on Voyager Pkwy:  In this section, a 1 inch layer of tire rubber asphalt was placed over existing, crack filled asphalt.  This test section used 3/8 inch Slag aggregate, a by-product of the steel industry, and 15 percent tire rubber in the mix.  Slag is a 100% recycled material.  Combined with TBTRA oil, it makes this a 96% recycled material overall.
  • Voyager Parkway (Northbound) from the north side of Jet Stream Drive Intersection to 890' northbound on Voyager Pkwy:  In this section, a 1 inch layer of tire rubber asphalt was placed over existing, crack filled asphalt.  This test section used a hard, 3/8 inch Granite aggregate, and 15 percent tire rubber in the mix.

* In 2010, the City will use TBTRA oil with a 5% Tire Rubber content for its Double Chip Seal program (7.56 LM) as well.

** The 2008 TBTRA innovation test zone project was postponed due to oil supply issues.