- 15th April 2016
- Posted by: Joanne Woodhouse
- Category: Projects
CBMDC commissioned JBA to undertake a study into the feasibility of installing a hydropower scheme with associated fish pass at Salts Mill Weir on the River Aire within the boundary of the UNESCO World Heritage Site of Saltaire. Subsequent commissions required us to produce a developed design for the purposes of securing local fish pass approval from the Environment Agency along with planning permission from the local authority, Listed Building consent from English Heritage and permanent works flood defence consent & impoundment licence from the EA.
We developed an extremely compact design for an economically-viable scheme with a payback period of approximately 16 years, that included a two flight Larinier fish pass with integral eel pass sitting adjacent to the left bank of the weir.
Our design team was led by fish pass experts, hydropower engineers and landscape architects to ensure an appropriate application of skills to address the key constraints at the site. Construction-stage access constraints dictated by the proximity of the footbridge, the design head difference across the weir and the proximity of the foul sewer in particular, represented the key challenges.