Case study:Salmon to Sheffield - Revision history

Ascarr at 14:22, 25 February 2026

2026-02-25T14:22:43Z

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Mattduffy at 11:46, 19 February 2026

2026-02-19T11:46:20Z

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	\|Project summary=The River Don suffered severe industrial pollution throughout the 19th and 20th centuries and was considered ecologically dead until the late 1980s. Improvements in water quality, combined with fish reintroductions and restocking, led to the recovery of resident fish populations and the return of Atlantic salmon to the lower catchment in the mid-1990s. Despite this recovery, migratory species remained unable to access their historic spawning grounds in the upper Don due to a succession of man-made barriers.		\|Project summary=The River Don suffered severe industrial pollution throughout the 19th and 20th centuries and was considered ecologically dead until the late 1980s. Improvements in water quality, combined with fish reintroductions and restocking, led to the recovery of resident fish populations and the return of Atlantic salmon to the lower catchment in the mid-1990s. Despite this recovery, migratory species remained unable to access their historic spawning grounds in the upper Don due to a succession of man-made barriers.
	Restoring longitudinal connectivity has therefore been a long-term ambition for partners working across the catchment. The first major barrier to migration, Crimpsall Sluice at Doncaster, was addressed through construction of a rock ramp, enabling salmon and other migratory fish to bypass the structure. Over the following 20 years, and working predominantly from downstream to upstream, a further 16 barriers were progressively eased ~~(see catchment barrier map in supporting information 1)~~. These interventions were primarily delivered through the installation of Larinier fish passes, a proven and effective solution for the steep, low-head weirs characteristic of the River Don.		Restoring longitudinal connectivity has therefore been a long-term ambition for partners working across the catchment. The first major barrier to migration, Crimpsall Sluice at Doncaster, was addressed through construction of a rock ramp, enabling salmon and other migratory fish to bypass the structure. Over the following 20 years, and working predominantly from downstream to upstream, a further 16 barriers were progressively eased. These interventions were primarily delivered through the installation of Larinier fish passes, a proven and effective solution for the steep, low-head weirs characteristic of the River Don.

	Delivery of this catchment-scale programme relied on a combination of legislative drivers linked to riparian and hydropower developments, charitable grant funding secured by the Don Catchment Rivers Trust (DCRT), and contributions from organisations such as Yorkshire Water in support of their sustainability objectives. This partnership approach enabled long-standing barriers to be addressed and ensured steady progress towards restoring full river connectivity.		Delivery of this catchment-scale programme relied on a combination of legislative drivers linked to riparian and hydropower developments, charitable grant funding secured by the Don Catchment Rivers Trust (DCRT), and contributions from organisations such as Yorkshire Water in support of their sustainability objectives. This partnership approach enabled long-standing barriers to be addressed and ensured steady progress towards restoring full river connectivity.

Mattduffy at 11:45, 19 February 2026

2026-02-19T11:45:51Z

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Mattduffy: Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=53.43045, -1.35885 }} {{Project overview |Project title=Salmon to Sheffield |Status=Complete |Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Urban |Country=England |Main contact forename=Matthew |Main contact surname=Duffy |Main contact id=DCRT |Contact organisation=Don Catchment Rivers Trust |Contact organisation url=dcrt.org.uk/ |Multi-site=Yes }} {..."

2026-02-19T11:43:02Z

Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=53.43045, -1.35885 }} {{Project overview |Project title=Salmon to Sheffield |Status=Complete |Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Urban |Country=England |Main contact forename=Matthew |Main contact surname=Duffy |Main contact id=DCRT |Contact organisation=Don Catchment Rivers Trust |Contact organisation url=dcrt.org.uk/ |Multi-site=Yes }} {..."

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{{Case study status
|Approval status=Draft
}}
{{Location
|Location=53.43045, -1.35885
}}
{{Project overview
|Project title=Salmon to Sheffield
|Status=Complete
|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Urban
|Country=England
|Main contact forename=Matthew
|Main contact surname=Duffy
|Main contact id=DCRT
|Contact organisation=Don Catchment Rivers Trust
|Contact organisation url=dcrt.org.uk/
|Multi-site=Yes
}}
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