Getting Streets Up to Speed

St. Louis finds a manhole rim-raising solution that stands up to time and traffic.
Getting Streets Up to Speed
The Metropolitan St. Louis Sewer District includes 160,000 manholes. With the constant street work and repaving required in any metro area, raising manholes to grade is a major task performed thousands of times annually.

With a population of about 320,000, St. Louis, Missouri, is the 60th largest city in the U.S. But due to an unusual arrangement, St. Louis, its metro area (population about 3 million), and surrounding St. Louis County (about 1 million) happens to be served by the fourth-largest...

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