Cost Comparison of Conventional Gray Combined Sewer Overflow Control Infrastructure versus a Green/Gray Combination

被引：18

作者：

Cohen, Jeffrey P. ^{[2
]}

Field, Richard ^{[3
]}

Tafuri, Anthony N. ^{[3
]}

Ports, Michael A. ^{[1
]}

机构：

[1] Ports Engn, Jacksonville, FL 32257 USA

[2] Univ Hartford, Hartford, CT 06117 USA

[3] US EPA, Urban Watershed Management Branch, Edison, NJ 08837 USA

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 2012年 / 138卷 / 06期

关键词：

Combined sewer overflow; Green infrastructure; Gray infrastructure;

D O I：

10.1061/(ASCE)IR.1943-4774.0000432

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This paper outlines a life-cycle cost analysis comparing a green (rain gardens) and gray (tunnels) infrastructure combination to a gray-only option to control combined sewer overflow in the Turkey Creek Combined Sewer Overflow Basin in Kansas City, MO. The area of this basin is 2,248 ha (5,554 acres). A set of spreadsheets was developed upon which this life-cycle cost analysis is based. The spreadsheets allow the user to vary the length and/or the diameter of the tunnels. The spreadsheets calculate the additional number of rain gardens needed to handle a given amount of stormwater when the tunnel sizes are reduced. The difference in life-cycle costs between the green/gray and gray-only alternatives is calculated. For a range of options for the number of rain gardens, the green/gray combined alternative is more cost-effective than the gray-only option. The potential present worth of the cost savings for the 50-year expected lifespan of both the gray and green infrastructure could reach as much as $35 million for the Turkey Creek Basin. DOI: 10.1061/(ASCE)IR.1943-4774.0000432. (C) 2012 American Society of Civil Engineers.

引用

页码：534 / 540

页数：7

共 9 条

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[3] City of Kansas City MO Water Services Dept. (KCMO WSD) OCP, 2006, BAS COST MAN
[4] City of Kansas City MO Water Services Dept. (KCMO WSD) Overflow Control Program, 2007, MISS RIV NE IND DIST
[5] Dunnett N., 2007, Rain Gardens: Managing Water Sustainably in the Garden and Designed Landscape
[6] Ichihara K, 2011, LETT SPAT RESOUR SCI, V4, P21, DOI 10.1007/s12076-010-0046-4
[7] Pitt R., 2009, P 9 EWRI WAT ENV C
[8] Selvakumar Ari., 2006, USE BEST MANAGEMENT
[9] Urbonas B., 2011, STORMWATER, V12

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