Minneapolis goes the distance for its asphalt

  • Article by: MAYA RAO , Star Tribune
  • Updated: May 30, 2014 - 11:18 PM
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Commercial Asphalt’s Maple Grove plant produces much of the asphalt used in Minneapolis road repairs, even though there is a plant within the city.

Photo: Richard Sennott • richard.sennott@startribune.com,

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The plant just around the corner from Minneapolis’ public works yard can churn out 175 tons of hot asphalt an hour — but very little of it ends up on city streets.

Instead, city trucks regularly drive by the Bituminous Roadways plant two blocks away to pick up asphalt from the suburbs, traveling up to 2,000 miles on their busiest summer days to fetch the material and bring it back.

A manager at Bituminous Roadways raised concerns to a public works supervisor last year about how Minneapolis calculates hauling costs when awarding one of its largest, multimillion-dollar contracts.

The city continued awarding work to Commercial Asphalt, with plants in Maple Grove and Burnsville, over Bituminous Roadways. The Minneapolis company finally stopped trying this spring, leaving Commercial Asphalt the sole bidder — and winner — of a $5.4 million contract in April.

While Commercial Asphalt has always offered the lowest bid, the prices between the companies are roughly the same when accounting for hauling costs, city records show. Some question whether the system makes sense.

The city must “look at the way they’re wasting hard-earned dollars that taxpayers pay in,” said Cam Winton, a former mayoral candidate who has regularly called for more efficiency at City Hall. “We’re putting more wear and tear on the trucks.”

When it buys asphalt for road repairs, Hennepin County takes the distance to asphalt plants into account. The county tends to buy asphalt from Bituminous Roadways for Minneapolis jobs, and contracts with Commercial Asphalt when doing work in the suburbs.

The Minneapolis school system’s grounds and trucking employees also pick up asphalt from Bituminous Roadways for pothole jobs because of its proximity.

In recent years, however, City Hall stopped dividing the work between several players and began choosing a single bidder.

“It’s something we may have missed,” said Council Member Cam Gordon. “The fact that Hennepin County is doing it tells me that … maybe this is something we ought to consider.”

He added: “It sounds like [city public works employees] were coming in with what was going to be the most economically prudent, but maybe not environmentally protective.”

Minneapolis has a policy that encourages city departments to take environmental concerns, including air pollution, into consideration during purchasing decisions. Gordon said he isn’t sure if “this is something we’ve been monitoring as carefully as we can.”

The start of summer is the city’s top time to repair potholes and repave battered roads — work that isn’t possible during Minnesota’s cold, snowy months.

As the weather warms, municipal trucks that plowed snow now haul asphalt heated at more than 300 degrees to work sites all over Minneapolis, arriving in the suburbs as early as 7 a.m. for their first delivery.

The system comes down to making the most of the city’s workers and trucks, according to Paul Ogren, city superintendent of environmental engineering.

“If we were to just use those trucks just for snowplowing, that means those trucks would probably be sitting all summer long,” he said. “And so to get the best [use] of those trucks and the drivers and that sort of thing, keeping them busy doing this type of work to and from sites is good for the entire organization.”

Traveling from the city’s North Side public works facility to Maple Grove is a 24-mile round trip, while driving from its two south Minneapolis public works yards to Burnsville is a 29-mile round trip. That can add up to hundreds of miles of truck driving in a single summer day.

Commercial Asphalt’s plants can produce as much as 700 tons of asphalt an hour, and they come in with the lowest bids because they are much closer to raw materials. They own a gravel pit on their Maple Grove site and can easily truck in other materials from St. Cloud. The sprawling facility has room for them to store large deliveries during the cheaper offseason.

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