Chapter
Aug 30, 2024
Free-Floating, Screening Level Visual Inspection of Large Sewers in Los Angeles, CA
Authors: Gary N. Skipper, P.E., M.ASCE [email protected], Mark A. Poppe, P.E., M.ASCE [email protected], Michael A. Metcalf, Ph.D. [email protected], and Drew M. Skipper [email protected]Author Affiliations
Publication: Pipelines 2024
ABSTRACT
Inspection of sewer pipelines on a periodic basis is a necessity for successful operation of collection systems. Operational and structural assessment is required to identify and remedy issues prior to failure occurrence. Beginning in 2017, the City of Los Angeles, Bureau of Sanitation (LA Sanitation and Environment, or LASAN), embarked on a program to systematically inspect and assess the condition of one its oldest, and critically important conveyances, the North Outfall Sewer (NOS) system. Much of its length was inspected using Closed-Circuit Television (CCTV), Light Detection and Ranging (LiDAR), and sonar profiling [combination known as Multi-Sensor Inspection (MSI)]. The cost of MSI inspections limited the length that could be inspected with available funds. LASAN sought a lesser cost option to perform screening level inspections rather than detailed MSI. This paper focuses on the identification and use of a novel untethered, free-floating platform for screening level visual inspections of large sewers.
Get full access to this chapter
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
History
Published online: Aug 30, 2024
Permissions
Request permissions for this article.
ASCE Technical Topics:
- Analysis (by type)
- Benefit cost ratios
- Business management
- Construction engineering
- Construction management
- Disaster risk management
- Disasters and hazards
- Engineering fundamentals
- Failure analysis
- Failures (by type)
- Financial management
- Forensic engineering
- Infrastructure
- Inspection
- Lifeline systems
- Man-made disasters
- Pipeline systems
- Pipes
- Practice and Profession
- Sewer pipes
- Sewers
- Steel pipes
- Structural engineering
- Structural failures
- Structural systems
Authors
Affiliations
1Vice President and National Specialty Leader, Conveyance Infrastructure Condition Assessment and Rehabilitation, Brown and Caldwell. Email: [email protected]
2Managing Principal, Brown and Caldwell. Email: [email protected]
3Managing Principal and National Technology Innovation Leader, Conveyance Infrastructure, Brown and Caldwell. Email: [email protected]
4Engineering Lead, Conveyance Infrastructure, Brown and Caldwell. Email: [email protected]
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.