Materials Source List - Illinois Department of Transportation

Precast Concrete. List Precast, Prestressed Concrete. IL OK Timber. Cert. or Mark or LA 15 Pipe, Culvert & Drain. Cast or Ductile Iron Pipe. Cert. or LA 15 Clay Pipe & Drain Tile. LA 15 or IL OK or Test Metal Corrugated & Components. Cert. or IL OK or LA 15 Pipe-Plastic, PVC, HDPE-water/sewer. IL OK or LA 15 or Test Pipe Fittings – PE, PVC ... ................
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