Roadway maintenance includes: bridge maintenance; road patching ( filling potholes, full depth repairs, skin patching and crack sealing ); road resurfacing with either asphalt or slurry seal; shoulder maintenance and storm drain maintenance, including erosion repairs, roadway ditch and channel repairs, cleaning enclosed storm drains, and installation and repair of damaged pipes. Related activities include: grass mowing; guardrail replacement; street cleaning/sweeping; and maintenance of curbs, gutters, and sidewalks.