{"12":{"field-type":"comment-f","field-title":"Description","field-content":"142" X 91" CSP made in one 70' long piece. The resilience of CSP allows for a high beam strength helping in cross culverts to be installed in one piece, with not joints. This is a big advantage for CSP versus HDPE or PP culverts, particularly in cold weather culverts where freeze thaw effects on joints is a real issue. HDPE and PP have 14 times the thermal expansion of steel. High thermal expansion properties are bad from joints in cross culvert applications."},"13":{"field-type":"text-f","field-title":"Name","field-content":"Bob Moore"}}