Construction of the Prothro Football Practice Fields at Oregon State University.  Design features:  Excavate existing field, Grade subgrade to 1.5% slope, Head-head multizoned irrigation, Hunter heads, Drains 15 ft on center, 8” mains, 4” laterals, Trenches lined with geotextile fabric, 90-10 sand/organic topmix approx. 12” depth, Sand grown perennial ryegrass sod, Fixed goals at south end of field.

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