Walkabout: Pittsburgh parks are rolling in green, but some need maintenance

McKinley Park in Beltzhoover is ready for a new round of upgrades. Allegheny Commons Park on the North Side is due for its next phase of restoration. South Side Park is in the last stages of a master-planning process. In Frick Park, butternut trees have been discovered. And a brand new park in the Lower Hill may be under construction by next year.