Medium-term performance and maintenance of SUDS: a case-study of Hopwood Park Motorway Service Area, UK

K. V. Heal, R. Bray, S. A. J. Willingale, M. Briers, F. Napier, Christopher Jefferies, P. Fogg

Research output: Contribution to journalArticle

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Abstract

One of the main barriers to implementing SUDS is concern about performance and maintenance costs since there are few well-documented case-studies. This paper summarizes studies conducted between 2000 and 2008 of the performance and maintenance of four SUDS management trains constructed in 1999 at the Hopwood Park Motorway Service Area, central England. Assessments were made of the wildlife value and sedimentation in the SUDS ponds, the hydraulic performance of the coach park management train, water quality in all management trains, and soil/sediment composition in the grass filter strip, interceptor and ponds. Maintenance procedures and costs were also reviewed. Results demonstrate the benefits of a management train approach over individual SUDS units for flow attenuation, water treatment, spillage containment and maintenance. Peak flows, pond sediment depth and contaminant concentrations in sediment and water decreased through the coach park management train. Of the 2007 annual landscape budget of £15,000 for the whole site, the maintenance costs for SUDS only accounted for £2,500 compared to £4,000 for conventional drainage structures. Furthermore, since sediment has been attenuated in the management trains, the cost of sediment removal after the recommended period of three years was only £554 and, if the design is not compromised, less frequent removal will be required in future.
Original languageEnglish
Pages (from-to)2485-2494
Number of pages10
JournalWater Science and Technology
Volume59
Issue number12
DOIs
StatePublished - 2009

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train
sediment
cost
pond
park management
motorway
peak flow
containment
water treatment
grass
sedimentation
drainage
filter
hydraulics
water quality
pollutant
soil
water

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Heal, K. V., Bray, R., Willingale, S. A. J., Briers, M., Napier, F., Jefferies, C., & Fogg, P. (2009). Medium-term performance and maintenance of SUDS: a case-study of Hopwood Park Motorway Service Area, UK. Water Science and Technology, 59(12), 2485-2494. DOI: 10.2166/wst.2009.288

Heal, K. V.; Bray, R.; Willingale, S. A. J.; Briers, M.; Napier, F.; Jefferies, Christopher; Fogg, P. / Medium-term performance and maintenance of SUDS : a case-study of Hopwood Park Motorway Service Area, UK.

In: Water Science and Technology, Vol. 59, No. 12, 2009, p. 2485-2494.

Research output: Contribution to journalArticle

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Heal, KV, Bray, R, Willingale, SAJ, Briers, M, Napier, F, Jefferies, C & Fogg, P 2009, 'Medium-term performance and maintenance of SUDS: a case-study of Hopwood Park Motorway Service Area, UK' Water Science and Technology, vol 59, no. 12, pp. 2485-2494. DOI: 10.2166/wst.2009.288

Medium-term performance and maintenance of SUDS : a case-study of Hopwood Park Motorway Service Area, UK. / Heal, K. V.; Bray, R.; Willingale, S. A. J.; Briers, M.; Napier, F.; Jefferies, Christopher; Fogg, P.

In: Water Science and Technology, Vol. 59, No. 12, 2009, p. 2485-2494.

Research output: Contribution to journalArticle

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AB - One of the main barriers to implementing SUDS is concern about performance and maintenance costs since there are few well-documented case-studies. This paper summarizes studies conducted between 2000 and 2008 of the performance and maintenance of four SUDS management trains constructed in 1999 at the Hopwood Park Motorway Service Area, central England. Assessments were made of the wildlife value and sedimentation in the SUDS ponds, the hydraulic performance of the coach park management train, water quality in all management trains, and soil/sediment composition in the grass filter strip, interceptor and ponds. Maintenance procedures and costs were also reviewed. Results demonstrate the benefits of a management train approach over individual SUDS units for flow attenuation, water treatment, spillage containment and maintenance. Peak flows, pond sediment depth and contaminant concentrations in sediment and water decreased through the coach park management train. Of the 2007 annual landscape budget of £15,000 for the whole site, the maintenance costs for SUDS only accounted for £2,500 compared to £4,000 for conventional drainage structures. Furthermore, since sediment has been attenuated in the management trains, the cost of sediment removal after the recommended period of three years was only £554 and, if the design is not compromised, less frequent removal will be required in future.

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Heal KV, Bray R, Willingale SAJ, Briers M, Napier F, Jefferies C et al. Medium-term performance and maintenance of SUDS: a case-study of Hopwood Park Motorway Service Area, UK. Water Science and Technology. 2009;59(12):2485-2494. Available from, DOI: 10.2166/wst.2009.288