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Sewer Assessment,I/I Assessment and Recalibration Saves Millions

Susan Moisio, Saa K. Shemsu and Philip Gray (2004)
R.D. Zande & Associates, USA
XCG Consultants Ltd., USA
XCG Consultants Ltd., Canada
DOI: https://doi.org/10.14796/JWMM.R220-34
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Abstract

The Metropolitan Sewer District of Greater Cincinnati (MSDGC, the District) is committed to the elimination of sanitary sewer overflows (SSO) and basement flooding events in their combined and sanitary sewer networks. In meeting this commitment in the Richmond/Orchard study area, the District has completed a Storm Water Removal Program, conducted flow monitoring and hydraulic modeling, and prepared a remedial measures plan to reduce SSO activity and basement flooding complaints. The recommended remedial plan was considered costly. As a result the District undertook to further evaluate area hydraulic and flooding problems with a focus to improve upon the previous studies when it was determined they did not have the benefit of complete and accurate calibration and system geometry data. A hydraulic model, MIKE SWMM, was developed and calibrated using flow monitoring data collected during the study period and verified using historical monitoring data. Model verification included a more complete consideration of flow, volume, stage, and hydraulic conveyance properties throughout the collection system. The study resulted in a combination of system improvements at an estimated cost of approximately one third of the original estimates to reduce SSO and basement flooding occurrences.

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PAPER INFO

Identification

CHI ref #: R220-34 942
Volume: 12
DOI: https://doi.org/10.14796/JWMM.R220-34
Cite as: JWMM 12: R220-34

Publication History

Received: N/A
First decision: N/A
Accepted: N/A
Published: February 15, 2004

Status

# reviewers: 2
Version: Final published

Copyright

© 2004 CHI.
Some rights reserved.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

All papers published in the JWMM are licensed under a Creative Commons Attribution 4.0 International License (CC BY).

JWMM content can be downloaded, printed, copied, distributed, and linked-to, when providing full attribution to both the author/s and JWMM.


AUTHORS

Susan Moisio

R.D. Zande & Associates, Cincinnati, OH, USA
ORCiD:

Saa K. Shemsu

XCG Consultants Ltd., Cincinnati, OH, USA
ORCiD:

Philip Gray

XCG Consultants Ltd., Oakville, ON, Canada
ORCiD:


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creative commons license   JWMM content is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0 DEED)


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