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Streets in Minneapolis are holding their own in terms of surface condition, according to an annual analysis of their condition. But the trends vary by type of street.

The annual rating, known as a pavement condition index, measures the surface condition of streets based on visual observation of the smoothness of their surface. It's watched as a measure of whether investment in streets is keeping up with deterioration caused by age, weather and heavy traffic.

The average index for all city streets held at 69 on a scale of 0 to 100 points, with 100 a perfect score. It's the sixth straight year that the rating has held at that level, stabilizing after a long decline from 81 in 1995.

Parkways notched their third straight year of improvement, hitting an average of 70.