A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rehabilitation of an Existing 114-inch Corrogated Metal Storm Sewer Trunkline
The City of Laredo has seen remarkable growth over the last several decades. As a result, the need to make significant improvement to the storm sewer infrastructure has increased. Adjacent development and, at some locations, encroachments to storm sewer easements have complicated the situation. This paper will discuss the problems, the evaluation and the solution recommended for rehabilitation of a 114-inch corrugated metal pipe (CMP) storm sewer trunk line through a highly urbanized portion of Laredo. The 114-inch CMP storm sewer trunk line was constructed over 30 years ago and serves an extensive drainage system through an older section of the City of Laredo near the Gateway to Americas International Bridge which is one of the city's five international bridges to Mexico. The project addresses many utility and environmental issues among which is crossing a former landfill area. Here the existing storm sewer has a depth of cover of more than twenty feet below the surface along certain sections of the project. The existing storm sewer line also transverses densely compacted residential and commercial areas including the Rio Grande Plaza Hotel, a Laredo landmark, before the line outfalls into the Rio Grande. Additionally, numerous public facilities would be impacted by any open cut construction. Based on a preliminary analysis, it was determined that the most cost effective solution would be to rehabilitate the existing storm sewer trunkline instead of removing and replacing the old line. This paper will review the issues involved in the recommendation to rehabiliate the line. Additionally, it will present the challenges of installing a structural liner in the existing line and the use of multiple trenchless construction methods for rehabilitation which include sliplining fiberglass reinforced plastic (FRP) and spiral wound renewal pipe system (SWPR).
Rehabilitation of an Existing 114-inch Corrogated Metal Storm Sewer Trunkline
The City of Laredo has seen remarkable growth over the last several decades. As a result, the need to make significant improvement to the storm sewer infrastructure has increased. Adjacent development and, at some locations, encroachments to storm sewer easements have complicated the situation. This paper will discuss the problems, the evaluation and the solution recommended for rehabilitation of a 114-inch corrugated metal pipe (CMP) storm sewer trunk line through a highly urbanized portion of Laredo. The 114-inch CMP storm sewer trunk line was constructed over 30 years ago and serves an extensive drainage system through an older section of the City of Laredo near the Gateway to Americas International Bridge which is one of the city's five international bridges to Mexico. The project addresses many utility and environmental issues among which is crossing a former landfill area. Here the existing storm sewer has a depth of cover of more than twenty feet below the surface along certain sections of the project. The existing storm sewer line also transverses densely compacted residential and commercial areas including the Rio Grande Plaza Hotel, a Laredo landmark, before the line outfalls into the Rio Grande. Additionally, numerous public facilities would be impacted by any open cut construction. Based on a preliminary analysis, it was determined that the most cost effective solution would be to rehabilitate the existing storm sewer trunkline instead of removing and replacing the old line. This paper will review the issues involved in the recommendation to rehabiliate the line. Additionally, it will present the challenges of installing a structural liner in the existing line and the use of multiple trenchless construction methods for rehabilitation which include sliplining fiberglass reinforced plastic (FRP) and spiral wound renewal pipe system (SWPR).
Rehabilitation of an Existing 114-inch Corrogated Metal Storm Sewer Trunkline
Williamson, Temple (author) / Ford, Russell C. (author) / Mia, Riazul (author)
Pipelines Specialty Conference 2009 ; 2009 ; San Diego, California, United States
Pipelines 2009 ; 806-811
2009-08-12
Conference paper
Electronic Resource
English
Planning , Storm sewers , Construction , Design , Infrastructure , Rehabilitation , Texas , Pipelines
Rehabilitation of an Existing 114-inch Corrogated Metal Storm Sewer Trunkline
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