Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec

Extensive and aging forest road systems, especially those that include poorly maintained stream crossings, can be significant sources of fine sediment that are detrimental to aquatic ecosystems. With limited resources available for culvert maintenance, alternative low-water crossings such as fords h...

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Autores principales:	Karelle Gilbert, Sylvain Jutras, André P. Plamondon
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ford construction Suspended sediment load Continuous turbidity monitoring Stream water quality Suspended sediment concentration Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/b146a593ad34407aa8ddbc1f47793cd7
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spelling	oai:doaj.org-article:b146a593ad34407aa8ddbc1f47793cd72021-12-04T04:36:29ZSuspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec2667-010010.1016/j.envc.2021.100388https://doaj.org/article/b146a593ad34407aa8ddbc1f47793cd72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667010021003620https://doaj.org/toc/2667-0100Extensive and aging forest road systems, especially those that include poorly maintained stream crossings, can be significant sources of fine sediment that are detrimental to aquatic ecosystems. With limited resources available for culvert maintenance, alternative low-water crossings such as fords have been designed. Although crushed-stone fords have been used to minimize particle release during stream crossing, few studies have measured the fine sediment input that results from their construction. We used continuous turbidity monitoring paired with grab samples to obtain suspended sediment input from four construction sites with different streamflows, streambed gradients and bed and bank soil textures. Construction took place in the fall of 2018 and the summer of 2019. The results indicate that the suspended sediment load induced by the construction ranged between 72 and 831 kg. Sediment load appeared mainly sensitive to the fine particle content in the streambed and banks. We also observed that suspended sediment concentrations returned to background levels at every site within 2 h after construction. Compared with the failure of unmaintained culverts in which most road fill is washed into the stream, crushed-stone fords construction represent negligible sediment input. Our results suggest that improved fords could be an environmentally beneficial alternative to culverts on seldom-used roads where access is still required but resources for culvert maintenance are lacking.Karelle GilbertSylvain JutrasAndré P. PlamondonElsevierarticleFord constructionSuspended sediment loadContinuous turbidity monitoringStream water qualitySuspended sediment concentrationEnvironmental sciencesGE1-350ENEnvironmental Challenges, Vol 5, Iss , Pp 100388- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ford construction Suspended sediment load Continuous turbidity monitoring Stream water quality Suspended sediment concentration Environmental sciences GE1-350
spellingShingle	Ford construction Suspended sediment load Continuous turbidity monitoring Stream water quality Suspended sediment concentration Environmental sciences GE1-350 Karelle Gilbert Sylvain Jutras André P. Plamondon Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
description	Extensive and aging forest road systems, especially those that include poorly maintained stream crossings, can be significant sources of fine sediment that are detrimental to aquatic ecosystems. With limited resources available for culvert maintenance, alternative low-water crossings such as fords have been designed. Although crushed-stone fords have been used to minimize particle release during stream crossing, few studies have measured the fine sediment input that results from their construction. We used continuous turbidity monitoring paired with grab samples to obtain suspended sediment input from four construction sites with different streamflows, streambed gradients and bed and bank soil textures. Construction took place in the fall of 2018 and the summer of 2019. The results indicate that the suspended sediment load induced by the construction ranged between 72 and 831 kg. Sediment load appeared mainly sensitive to the fine particle content in the streambed and banks. We also observed that suspended sediment concentrations returned to background levels at every site within 2 h after construction. Compared with the failure of unmaintained culverts in which most road fill is washed into the stream, crushed-stone fords construction represent negligible sediment input. Our results suggest that improved fords could be an environmentally beneficial alternative to culverts on seldom-used roads where access is still required but resources for culvert maintenance are lacking.
format	article
author	Karelle Gilbert Sylvain Jutras André P. Plamondon
author_facet	Karelle Gilbert Sylvain Jutras André P. Plamondon
author_sort	Karelle Gilbert
title	Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
title_short	Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
title_full	Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
title_fullStr	Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
title_full_unstemmed	Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec
title_sort	suspended sediment input from crushed-stone ford construction on the canadian shield in quebec
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b146a593ad34407aa8ddbc1f47793cd7
work_keys_str_mv	AT karellegilbert suspendedsedimentinputfromcrushedstonefordconstructiononthecanadianshieldinquebec AT sylvainjutras suspendedsedimentinputfromcrushedstonefordconstructiononthecanadianshieldinquebec AT andrepplamondon suspendedsedimentinputfromcrushedstonefordconstructiononthecanadianshieldinquebec
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Suspended sediment input from crushed-stone ford construction on the Canadian Shield in Quebec

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