A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rehabilitation of Deteriorated Sewers by the County Sanitation Districts of Los Angeles County
The County Sanitation Districts of Los Angeles County (Districts) operate and maintain a sewage collection system that includes approximately 1060 km (660 miles) of sewers made from unlined concrete pipe, which are susceptible to hydrogen sulfide corrosion. Ongoing inspections of the collection system have identified approximately 218 km (135 miles) of deteriorated sewers that would require either replacement or rehabilitation. In many cases where it would have been too costly or disruptive to replace a deteriorated sewer, rehabilitation using trenchless construction methods has allowed the Districts to extend its useful life of many sewers. To date, the Districts have awarded more than 50 contracts to rehabilitate more than 82 km (51 miles) of deteriorated sewers ranging from 203 to 2591 mm (8 to 102 inches) at a construction cost in excess of $105 million. Most of these projects have been completed successfully within the contract time and with few change orders.
Rehabilitation of Deteriorated Sewers by the County Sanitation Districts of Los Angeles County
The County Sanitation Districts of Los Angeles County (Districts) operate and maintain a sewage collection system that includes approximately 1060 km (660 miles) of sewers made from unlined concrete pipe, which are susceptible to hydrogen sulfide corrosion. Ongoing inspections of the collection system have identified approximately 218 km (135 miles) of deteriorated sewers that would require either replacement or rehabilitation. In many cases where it would have been too costly or disruptive to replace a deteriorated sewer, rehabilitation using trenchless construction methods has allowed the Districts to extend its useful life of many sewers. To date, the Districts have awarded more than 50 contracts to rehabilitate more than 82 km (51 miles) of deteriorated sewers ranging from 203 to 2591 mm (8 to 102 inches) at a construction cost in excess of $105 million. Most of these projects have been completed successfully within the contract time and with few change orders.
Rehabilitation of Deteriorated Sewers by the County Sanitation Districts of Los Angeles County
Howard, Anthony (author) / Anketell, Surendra (author) / Sung, Tommy (author)
Pipeline Division Specialty Conference 2001 ; 2001 ; San Diego, California, United States
Pipelines 2001 ; 1-15
2001-07-01
Conference paper
Electronic Resource
English
California , Pipe materials , Construction , Design , Pipes , Rehabilitation , Sewer pipes , Pipelines
Los Angeles county sanitation districts
| Engineering Index Backfile | 1926
Sanitation Districts of Los Angeles County Clearwater Program-Effluent Outfall Tunnel
| British Library Conference Proceedings | 2013