Along Alvord Street the river meadows lie flat and open, and whatever the sky is doing arrives there first — a wall of white in January, a green haze in May. Barko's | Excavating & Material Delivery meets both: plowing and sanding drives and lots through the winter, then mowing, trimming and cleaning up yards once the ground firms and the grass takes off. Material delivery keeps it moving in between, with mulch and stone brought in by the load rather than the bag. There is pride in a lot plowed corner to corner with the piles put somewhere sensible, and in a lawn cut level across ground that rolls. South Hadley asks for both kinds of work, and the year is long enough for both.