Construction of an attenuation dam to reduce flood risk to the village of Tilshead on Salisbury Plain
A site of Special Scientific Interest with archeological and ecological watching brief
10,000 cu of chalk imported from local stockpile to construct engineered chalk dam
Installation of over 675 tonnes of Armourflex matting
Working within military training areas with live ordinance
Project scope
With an increased risk of flooding to the village of Tilshead on Salisbury Plain, Ringway, the Term Maintenance Contractor for Wiltshire Council, contracted MJ Church to construct an engineered dam to alleviate flooding in the area. The site of the dam is designated a SSSI (Site of Special Scientific Interest) and is also in the heart of the British Army’s training facilities on Salisbury Plain. MJ Church scope included earthworks, construction works associated with dam and returning the site back to post construction conditions.
Project details
The Tilshead Flood Attenuation Dam was constructed to hold up to 100,000m cu of flood waters. The dam is constructed with a chalk engineered Type 3 reduced fines layer to allow for water percolation. An Armourflex matting layer provides a heavy-duty, durable erosion protection system to the dam, which has been covered in a layer of topsoil to enable re-growth of local plant life.
Due to the restrictions of the SSSI, military conditions and potential archeological finds, MJ Church undertook special measures and processes for the project.
These included:
• Working with an Archeological working brief during the earthworks and excavation
• Regular coordination with the Army to ensure minimal disruption to their routines and safe operations on the site and high security levels whilst live ordinance activity took place
• Ensuring high levels of Ecological management by maintaining a barrier around the perimeter of the site to stop wild life moving back on the site, and maintain strict processes to avoid spillages and leachate within the site boundary.
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.Read More
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
Cookie
Duration
Description
cookielawinfo-checkbox-advertisement
1 year
Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category .
cookielawinfo-checkbox-analytics
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional
11 months
The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
PHPSESSID
session
This cookie is native to PHP applications. The cookie is used to store and identify a users' unique session ID for the purpose of managing user session on the website. The cookie is a session cookies and is deleted when all the browser windows are closed.
viewed_cookie_policy
11 months
The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Cookie
Duration
Description
bcookie
2 years
LinkedIn sets this cookie from LinkedIn share buttons and ad tags to recognize browser ID.
bscookie
2 years
This cookie is a browser ID cookie set by Linked share Buttons and ad tags.
lang
session
This cookie is used to store the language preferences of a user to serve up content in that stored language the next time user visit the website.
lidc
1 day
LinkedIn sets the lidc cookie to facilitate data center selection.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Cookie
Duration
Description
_ga
2 years
The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors.
_ga_502ZZLKHN5
2 years
This cookie is installed by Google Analytics.
_gat_UA-82171508-1
1 minute
A variation of the _gat cookie set by Google Analytics and Google Tag Manager to allow website owners to track visitor behaviour and measure site performance. The pattern element in the name contains the unique identity number of the account or website it relates to.
_gid
1 day
Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously.
AnalyticsSyncHistory
1 month
No description
li_gc
2 years
No description
UserMatchHistory
1 month
Linkedin - Used to track visitors on multiple websites, in order to present relevant advertisement based on the visitor's preferences.