Valley gutter repair image

The City of  Helena Street Division is responsible for the maintenance of over 200 miles of pavement, 11 miles of dirt streets and numerous commercial and residential alleys. Maintenance includes but is not limited to sweeping, plowing and sanding, snow removal, storm drain maintenance, asphalt projects, pothole patching and repair, alleys and dirt street maintenance. 

Asphalt Potholing

City workers repairing pot hole

Potholing is a repair to an asphalt surface that has broken and/or eroded to a point that a hole or cavity exists.  Potholing is executed to minimize damage to vehicles, prevent falls, and preserve the surrounding area. 

Potholing can be divided into three distinct activities.  Temporary repairs with cold mix, long term repairs hot mix, and skin patching to cover wide areas of decay or settlement and wide crack coverage. This activity is conducted in active traffic. Visibility and awareness is of extreme importance.

To report a pot hole click here

or you may call:

Laurie Miller - 447-1566 or email:



Chip Seal Project

2017 Chip Seal Map & Public Service Announcement  (PDF)

The purpose of a chip seal is to prevent corrosion and provide a moisture barrier to existing and new asphalt.  The first step in chip sealing is to clean the street of any debris and patch any holes or cracks. The next step is to apply hot liquid asphalt emulsion on the street. The temperature of this oil is between 140 and 180 degrees. The third step is to apply the 3/8" washed aggregate (chips) as quickly as possible over the hot oil. Rubber-tire rollers are then used to set the rock into the fresh oil. The last step of the chip seal process is to sweep the street to remove surplus chips.  The sweeping process may take up to three weeks to complete.

Crack Seal Operation

The purpose of the crack seal operation is to seal cracks in asphalt streets to prevent deterioration of the street by water infiltration.  Crack sealing involves spraying a CRF emulsion directly into and around the crack in a street and blotting with masonry sand when curing has begun.  Work will be performed within designated, properly signed work zones on streets assigned by the supervisor.