May 24, 2012, Annapolis, MD – During its 50th
Annual Convention, the International Slurry Surfacing Association (ISSA)
announced Micro-Surfacing Inc. as the 2012 President’s Award winner for its
successful completion of the Missouri Highways and Transportation Commission’s
I-270/I-70 project.
May 24, 2012, Annapolis, MD – During its 50th
Annual Convention, the International Slurry Surfacing Association (ISSA)
announced Micro-Surfacing Inc. as the 2012 President’s Award winner for its
successful completion of the Missouri Highways and Transportation Commission’s
I-270/I-70 project. The St. Louis metropolitan-area traffic safety project was
the largest interstate micro surfacing project completed in the four-state area
of Missouri, Illinois, Indiana and Iowa. To address the safety skid issue
created by the four-year-old Novachip surface that was beginning to polish, the
project included the surface treatment of more than 100 lane miles of urban
highway with traffic volumes from 100,000 to 140,000 vehicles per day. Type II
micro surfacing was applied to 18 miles of urban interstate ranging between six
and eight lanes, including nine miles of I-270 from I-170 to the Mississippi
River and nine miles of I-70 from I-170 to East Grand Avenue. The project began
less than a month after the bid was submitted and employed mostly local
subcontractors for the pay items that included milling, asphalt and concrete
patching, hot-mix asphalt concrete (HMAC) overlays, rumble strips, traffic
control and striping items. Micro-Surfacing Inc. was able to overcome summer
traffic control and coordination obstacles that were further magnified by work
hour restrictions, nearly 100-degree air temperatures and 120-degree pavement
temperatures, consecutive ramp closure restrictions on 86 separate on/off ramps
and lane closure restrictions during St. Louis Cardinal game nights.
By mid-July, Micro-Surfacing Inc. had finished the
patching work and began applying micro surfacing treatments following the
Missouri Standard Specification book, which calls for a two-pass, 30-pound
total application of asphalt emulsion micro surfacing on 746,937 square yards
of
roadway. To improve friction, air-cooled blast
furnace slag aggregate was used. One or more crews worked 70 nights between
June and October to complete the project on time and under budget with no
accidents or work-related injuries.
“In these hard economic times when money is in short
supply to maintain our road and bridges, a quality micro surfacing application
is a way to lengthen the life of our pavements in a cost-effective manner,”
stated Dave Bauer, Missouri Department of Transportation Regional Engineer. “I
believe that Micro-Surfacing Inc.’s quality work will preserve these pavements
for years to come.”
ISSA’s annual President’s Award is presented in
recognition of contracting achievements, which exemplify the highest quality of
workmanship, and compliance with the best standards of practice. Roadway
projects submitted for consideration are judged on the merits of utility,
appearance, schedule completion, customer satisfaction and safety.
Founded in 1963, the International Slurry Surfacing
Association (ISSA) is a nonprofit association dedicated to the interests,
education and success of slurry and micro surfacing, chip sealing and crack
treatment professionals and corporations around the world. For more
information about ISSA and its practices, call (410) 267-0023; fax (410)
267-7546; email krissoff@slurry.org;
or visit www.slurry.org.
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