Auburn regularly sweeps its streets from April to October each year.

But within that six-month swath of time, residents have had a difficult time figuring out on what days exactly the big machines will come a-lumbering by.

Until now.

Now, said Randy Bailey, fleet manager for the City of Auburn, a new zone map allows the City “almost to guarantee everybody exactly what day” the street sweepers will be on any street.

So Bailey told the Municipal Services Committee Monday as he trotted out the new zone map.

The map, in the working stages since the fall of 2013, had been expected to be on the City’s website by the first of March, but snags reared their heads in February and delayed its coming-out a bit.

“We believe we have gotten rid 100 percent of those (problems), and it is now on the website,” Bailey said.

City residents can check out the website at www.auburnwa.gov/services/transportation/street_sweeping.htm

The webpage educates users on why the City sweeps its streets, displays zone locations and offers a comprehensive schedule of date and locations.

The City is likewise developing a postcard to send to all residents in each zone, informing them on what day for the rest of the year the sweepers will be on their streets. Some areas with curbed streets are not yet included in the new zones, but that shortcoming will be fixed within a month, Bailey said.

“We needed to try and make sure the amount of time we spend in each zone is about the same, so we can ensure that we can get it done in a day,” Bailey said.

The City’s street sweepers operate for 10 hours a day, and Bailey said the goal is to have them finish each zone in 6 1/2 to 7 hours.

“That allows the drivers time to do maintenance on their sweepers, get things fixed, get back on the road and still finish their zone,” Bailey said.