McPherson Public Works workers were at the intersection of Marlin Street and Maple Street Friday morning, checking to see if a drainage pipe had clogged or collapsed.

Water was not flowing from one side of the intersection or the other. Workers used several methods to determine if the pipe had collapsed or was just backed up.

Workers first attempted to empty water from one end of the pipe to get a better look at it. However, this proved ineffective, so the workers decided to use a pressurized stream instead.

If the source of the problem was a blockage, this stream would dislodge whatever caused the clog, allowing the water to flow again. If the source of the problem was a collapsed pipe, mud would flow backward.

Workers said if the pipe has collapsed, it will be relatively easier to fix, because the pavement on Maple Street has already been torn up for road work.