Project Overview

The City of Northfield has successfully utilized the street reclamation process to rehabilitate streets for the past several years. Reclaiming, or Reclamation, is a process where the existing bituminous and aggregate base is ground to a specified gradation or rock size. The streets being proposed for reconstruction in this report are planned to be reclaimed to a depth of 12”.  The determination of the proposed reclamation depth was based on the existing street section, traffic volumes, and previous experience with reclamation projects of this nature. The process will entail reclaiming the road surface, removing approximately four (4) inches of millings, grading and re-compacting the reclaimed base, and constructing a new bituminous surface.  The bituminous surface will consist of two (2) lifts with a total thickness of 4”.

The majority of the existing concrete curb and gutter is in good shape, but areas that have severe cracking or settlements will be replaced.  Also, if necessary, areas of the street exhibiting subgrade instability are easily accessible for any additional corrective measures that may be required.  The finished product will have the ride and appearance of a new street with an estimated life span of approximately 20 years, assuming proper maintenance is completed overtime (seal coating, crack sealing, etc.).

The other major improvement being discussed is the upgrading of a segment of trunk watermain that is located under a portion of the streets proposed for reclamation. This segment of watermain has numerous mechanical and structural problems. Along with the replacement of the trunk watermain, there is a segment of watermain being proposed that will help to loop the water systems in the northwest corner of the City.

The last improvement consists of installing new sidewalk in various locations along the perimeter of Lincoln Street, Lincoln Parkway and Spring Street.

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