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Duluth to pilot High Density Mineral Bond on 19 streets; bid award expected June 12
Summary
Public Works Director Audrey Turner presented a plan to pilot High Density Mineral Bond (HDMB) pavement preservation on 19 Duluth streets, estimating the project at under $200,000, describing environmental and lifespan benefits (about seven years), and outlining resident notifications; staff expects to put bid award on the June 12 agenda.
Public Works Director Audrey Turner told the Mayor and Council that Duluth will pilot High Density Mineral Bond (HDMB) as a pavement-preservation technique this year, applying it to 19 streets at an estimated cost of under $200,000.
Turner said HDMB has been used for about 15 years, mainly on the West Coast, and described it as more environmentally beneficial and cost effective with an expected seven-year life span. She contrasted the pilot with last year, when nine streets were paved by other methods at a cost of about $2.75 million.
To reduce resident disruption, Turner said crews will perform daytime work, aim to reopen streets each evening, coordinate with homeowners associations, and use door-hanger notifications; in smaller neighborhoods staff may close one side per day, though that approach is less cost effective for subcontractors. She showed before-and-after photos and said the pavement color will initially be darker than existing streets and will fade similarly to conventional asphalt.
Staff anticipates placing a bid award for the HDMB work on the June 12 Council agenda.
