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DPS "Here and Now"
This edition of the Department of Public Services’ eNewsletter is proud to showcase seventeen employees who were recognized at this year’s 2009 Wayne County Employee Achievement Awards ceremony!
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Monguagon Creek Daylighting and Wetland Restoration Project
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17 DPS Employees Receive Employee Achievement Awards
Meritorious Team: Parks
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The Wayne County Department of Public Services is proud to recognize the 17 department employees who received 2009 Wayne County Employment Achievement Awards.
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Pre-wetting and Anti-icing Techniques for Winter Road Maintenance Maintaining safe roads during winter storm conditions requires skill and knowledge. Wayne County Roads (WRC) researched recent developments in the use of liquid chemicals to clear the roadways. The liquid chemical used in our case is salt brine. Salt brine is a clear water and sodium chloride solution composed of tap water and rock salt mixed to a typical concentration of 23 percent to 26 percent salt. Historically, road agencies used dry salt, sand, and snow plows as the primary tools in their winter maintenance operations. Research has shown that salt brine can be used to maximize the Wayne County Roads resources while at the same time improving the safety of the motorists on our roadways. The two new techniques the WRC implemented are pre-wetting and anti-icing. Pre-wetting is a strategy of applying a salt brine solution to dry salt during the salt’s application to the pavement (See picture) When the liquid is applied to the rock salt particle, the particle absorbs a minor amount of liquid, which increases the density of the rock salt. The liquid also encapsulates, softens, and begins dissolving the salt particle. The wet salt stays on the road surface better, without much rock salt leaving the treated surface. The pre-wetting of salt at WCR has been used since the 2009 winter season and has several advantages:
Anti-icing is a proactive snow and ice control strategy. A small amount of liquid salt brine is applied to the pavement and bridge decks before a storm to prevent ice from bonding to the surface. Anti-icing is commonly used on pavements where a higher level of service is necessary, such as on bridge decks. Specialized equipment is required to apply this brine solution (See picture). The application of brine onto a roadway at the start of a winter storm, or even prior to the beginning of the snow prevents snow or ice from bonding to the pavement. Furthermore, moderate and periodic reapplications of the brine during the storm can continue this effect. As a consequence, anti-icing has the potential of providing increased traffic safety at the lowest cost. Such preventive operations are the core of WCR anti-icing program. The anti-icing rig we placed into service this winter was built in-house by the Equipment Division of the Department of Public Services. The benefits of WCR anti-icing strategy are:
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Rouge Valley Sewage Disposal System - Short Term Corrective Action Plan
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List of Current Design Projects
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