Affordable Drain Service

Owner:

City of San Diego – MWWD

Client:

Mark Hill - Project Manager Hirsch & Company

Scope Of Work

Hirsch & Company Consulting Engineers provided consultant services to the City Metropolitan Wastewater Department for CCTV televising and assessment of the Sorrento Mesa Trunk Sewer. Affordable Pipeline Services was mobilized to perform the televising of the remote sewer system. This trunk sewer runs along the Los Penasquitos Canyon Creek in a remote, vehicle inaccessible, environmentally sensitive canyon. The trunk sewer typically flows full with surcharged manholes along the line. Bypass pumping was needed to divert flow so that the inspection could be completed. The trunk sewer serves an industrial area, so the window for the work was a single weekend while most of the businesses were closed. Affordable Pipeline Services mobilized four inspection crews to different locations along the trunk sewer using handheld equipment and stretching cable from truck mounted equipment down the canyon for several hundred feet.

Key project elements:

Finished work ahead of an aggressive schedule
Utilized hand carried equipment
Bypass pumping
Night work in canyons entry into manholes where needed for CCTV
Accomplished confined space
Coordinated with City crews
Accomplished flow control as required for televising
Provided CCTV inspection of pipeline and pipeline views of associated manholes and junction structures on a video color format recording, including narrative soundtrack and digital photos
Identified all features and defects and provided inspection results and in database format
Identified the presence of problem conditions that would require high priority repairs or replacement
Multiple coordinated worksites

Project challenges:

High flow 
Limited work window

Affordable Pipeline Services solutions:

Bypass pumping and equipment modifications
Mobilized multiple crews

Benefits to owner:

Clear view of the pipeline
Project completed ahead of schedule and under budget