Sanctioned Maintenance Programs

Every two to three years the City conducts a pavement condition rating survey to determine where resurfacing is needed. Segments are grouped together to create a continuous paving area rather than just selecting the worst segments scattered randomly throughout the City.

The Pavement Management Program preserves and maintains Redmond's pavement infrastructure in good condition. Pavement is rated from 0 to 100 (100 is brand new pavement) and are used to quantify a pavement's overall performance and help manage the pavement network. The program strives to sustain an average pavement score above 80.

Resurfacing takes four phases to complete.  

• Phase 1: Improve sidewalk ramps, curbs and storm drains.
• Phase 2: Grinding and repairing the existing asphalt surface.  
• Phase 3: Hot asphalt overlay with about a two hour waiting period for the asphalt to dry and harden before the street is reopened to traffic. 
• Phase 4: The paving machine must run in a continuous, uninterrupted path to provide a smooth surface. Manholes and valves are paved over with the road surface. Afterwards, cuts are made into the new asphalt so manhole castings can be raised level with the surface and the asphalt is patched.

Interesting Facts:

• There are about 219 lane miles of arterial streets and 128 lane miles of local streets (each local street has two lanes and arterial streets have multiple lanes).
• Redmond's average pavement score is 71.

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