Tuesday, February 11, 2014

Seal Coating for 2014



This past year the council discussed how to do a better job with the roads within the city.  The primary driver of the discussion was getting roads paved but part of the discussion included the need to maintain the paved roads we have.  A paved road has a life cycle, with proper maintenance, that can last upwards of 50 years but requires certain things get accomplished.  To get to that lifespan the road needs to have adequate base and drainage when constructed.  It needs periodic seal coating and asphalt overlays. 

Seal coating needs to be done when the roadway shows some wear of the top coat of the asphalt with the aggregate showing but not popping out.  A seal coat does little good once the aggregate is loose.  The purpose of the seal coat is to renew, refresh, and coat the surface with a tack coat of tar/oil binder to preserve the asphalt mat.  On top of that, sand, pea rock or granite chips are applied.  This sticks to the tack coat and provides an additional wear surface for the roadway.  This is allowed to firm up and the loose material is then swept off.  To further the advantage of a seal coat, a fog seal is applied.  This is a final spray of tar/oil to further tack the new surface to the roadway.  The result looks like a new roadway.  This was what was accomplished on Co. Rd. 4 this past summer.  

A conscious effort was made to provide funds in the 2014 budget to do some seal coating of roads.  $30,000 was budgeted for this year.  The roads approved for seal coating this summer includes the following:
1.              North Birchwood Drive between Breezy Point Drive and North Drive
2.             North Pinewood Drive between Breezy Point Drive and North Drive
3.             North Spruce Drive between Breezy Point Drive and North Drive
4.             North Drive from Co. Rd. 11 to North Lakeview Drive
5.             North Lakeview Drive between Breezy Point Drive and 
          Weavers Point Road
6.            Weavers Point Road from Co. Rd. 11 and intersection of North 
          Lakeview Drive
7.            Wolf Lane from North Lakeview Drive to Weavers Point Road
8.            Gopher Lane from Wolf Lane to Weavers Point Drive
9.             Fox Loop from and to Weavers Point Drive

The project will be accomplished in coordination with the Crow Wing County Highway Department.  They annually do seal coating of their roadways and will allow us to piggyback on their bids for this work.  Due to the size and quantities of their efforts we’re able to get competitive bids.  Adding our work only enhances the opportunity to get favorable bid prices.  

The process goes rather quickly so we hope disruption will be minimal.  There will be more information on this effort and timelines when bids are received and construction scheduled.