Sandbags placed at Middle Mill Weir to slow further erosion

Half of the historic Middle Mill Weir, in Colchester Castle Park, fell into the River Colne ten days ago.

According to Colchester Council bosses, heavy rainfall and high river flows have caused significant deterioration to the structure, raising concerns about its stability.

A section of the weir in Castle Park collapsed ten days ago (Image: Nicola Dines)

Mark Goacher, Colchester councillor for Castle, previously said he fears “further collapses are likely”.

However, now, piles of sacks and sandbags have been craned into the site, to attempt further damage or issues arising.

The sandbags have been strategically placed around the remaining weir structure to slow down further erosion (Image: Newsquest)

A Colchester Council spokesman said: “This morning, one-tonne bags have been strategically placed around the remaining weir structure to slow down further erosion which could compromise the integrity of the footbridge and the structure holding the old water wheel.

“The sandbags, which sit behind these to add further protection, will be put in place this afternoon.” 

Due to the ongoing work, parking has been suspended at Middle Mill Weir from 6am Monday, December 18 to 6pm on Friday, December 22.

Following the collapse, the nearby footbridge was also closed as a precaution.

Middle Mill bridge has been closed following the collapse (Image: Newsquest)

A diversion was also put in place for cyclists and pedestrians whilst the weir, which was only repaired last year, is inspected.

There is also a step-free route, which goes along to Causton Road and back towards the other side of the now-closed bridge.

The bridge is typically a busy pedestrian route across Kings Meadow into the city centre or Lower Castle Park.

Workers at the site of the collapsed weir (Image: Newsquest)

Whilst the weir is the responsibility of Colchester Council, Middle Mill bridge is owned by Essex County Council.

It is understood the county council is awaiting a period of drier weather to allow water levels to subside.

This will in turn allow for a comprehensive investigation and assessment of the structural damage and determine which components are salvageable. 

Following this, Colchester Council said it will then formulate a “longer-term plan” which considers the environmental health of the river, heritage impacts, any potential risks to physical infrastructure due to the change in river flow, and the impact on the community including those who live upstream of the weir.