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an interesting read...

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Spotlight: Rail Surveys

15/3/2019

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For the second edition in our Spotlight series, it’s all aboard for a whistle stop tour of our work in the rail industry.

Rail work can incorporate many different types of surveys from surveying the rail infrastructure itself to the surrounding environments, including land and rivers.
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With experience across buildings, land and engineering, we are able to provide comprehensive rail surveys including:
  • Bridge surveys
  • Scour assessment and protection surveys
  • 3D sonar scanning
  • Track drainage surveys
  • Embankment / cutting surveys
  • Culvert surveys
  • Topographic surveys of land surrounding rail infrastructure
  • Station platform and building surveys
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Railway track drainage survey
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Railway bridge laser scan
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Data mapping following a scour protection survey
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Platform laser scan
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Bridge combined laser and sonar scan
Using the latest technology, both in the field and here at GCS HQ, we can provide accurate and detailed data for our clients. Our survey outputs include:
  • Detailed 2D and 3D drawings in Autocad dwg/dxf formats
  • Point cloud data
  • River modelling specific files including, ISIS, Hec-Ras, EEBY, MIKE11, XYZ and EACSD

Being a RISQS (Rail Industry Supplier Qualification Scheme) approved company, we are a trusted supplier within the rail industry and are authorised to work on Network Rail infrastructure.

Here’s what one of our clients had to say...

“Grantham Coates Surveys have been providing our surveys for many years now - always innovating, always helpful, always approachable and always deliver to time and budget.
Not only are they RISQS approved but also most of their staff are PTS trained and have many years’ experience of working in a railway environment.
They have an approach and ethos to their work like no other and because of this they are reliable which, in a railway setting where time constraints are often tight, make them the ideal choice.
We look forward to many more years of working together.”
Iain Fox
JBA Consulting


If you’d like to talk to us about a rail project, contact us on 01789 764420 or [email protected] or for more information on our rail surveys click here.
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Spotlight: Measured Building Surveys

31/1/2019

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The first edition in our new Spotlight series! This month the spotlight is on measured building surveys. As land, engineering and building surveyors this is one of the key areas of our business.
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Measured building surveys is a diverse area which often sees us working alongside architects and developers on a variety of projects including houses of any size and shape, historic and listed structures as well as commercial buildings such as retail, offices, warehousing and agricultural.
Whether it is a simple residential extension or a large scale office refurbishment, here at GCS we offer:

  • Floor plans
  • ​Elevations
  • Sections
  • Sectional elevations
  • As built plans
  • 3d building models
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Example elevation drawing

No amount of technology will put our trusty tape measure into retirement, however we pair traditional tools with the latest technology to deliver top quality surveys for our clients.

  • Total stations
  • GPS
  • Laser Scanning using a state of the art Leica laser scanner
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Surveying a historic structure in Castle Combe
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Laser scan for an oak frame conservatory design
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Industrial survey for new warehouse set up

Our experience, knowledge and technology allows us to deliver photographs, drawings and models but we don’t stop there. Our number one priority is client satisfaction so we also go above & beyond to ensure that all of our surveys that are fully layered with detailed annotations.

Don’t just take our word for it...

“Chris, John and Grantham Coates Surveys have been our main supplier of measured building surveys for over seven years now, always with precise accuracy and attention to detail. They often deal with clients on our behalf and conduct themselves in a highly professional manner. I would happily recommend GC Surveys”

Mark Powles
RRA Architects

To read more about our measured building surveys click here. To talk to us about a project of your own, contact us on 01789 764420 or [email protected]
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Best of 2018

20/12/2018

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With the end of 2018 near, we are reflecting on some of our best bits! Here’s just a few of our highlights from this year…
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Caught on camera!

​In the spotlight

Earlier this year one of our very own team members, Scott, had his turn in the spotlight when he was filmed for Channel 5’s Paddington Station 24/7 whilst carrying out a roof survey on the Macmillan House/Paddington Station roofs.

A bridge too far...never!
In 2018 we have completed loads of railway bridge surveys including batches of 30+ in Wales and over 40 on London North Eastern line!

Knowledge is power
Surveying can take us to some hard to reach places, on land and water. This summer, Scott and Jack travelled to the Bristol Marine Academy for a two day course where they achieved their Powerboat licenses. This will enable them to access sites safely via the water when required. Well done both!

Stepping back in time
One of our favourite projects this year was a survey steeped in history. We were commission to obtain position level and gross volumes of two World War Two era tunnel complexes beneath the old Rover plant at Longbridge. Pictures below show then and now...
Glitz and glamour
There is no limit to the depths we will go to for a survey and a prime example of this is what is affectionately known in the office as ‘a poo pipe survey’. We are in the midst of scanning three chambers to ascertain the depth and alignment of an operational trunk sewer. Working below ground carries risks so the GCS team are all Confined Spaces trained.
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All aboard!
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Railways have always formed a big part of our work here at GCS and this year we went beyond bridges to perform around 10 station platform surveys including one for platform extension works.

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Near & Far
We are often called upon to undertake laser scan surveys on areas that are going to be used for projection. Projection is a popular choice for large scale events and, working in conjunction with Projection Artworks, our laser scan surveys have been used to help the likes of Warwick Castle and The Macallan Distillery.
At Warwick Castle, our survey was used to inform an epic projection-mapping of Guy of Warwick; The Dragon Slayer, defeating the Dragon! For our next projection project we travelled to bonnie Scotland for a two day survey helping Macallan prepare for the opening event of their £140million distillery!
From dragon slaying to whisky making, our most exotic projection survey to date has to be The Asian Games. Two members of the GCS team went to Jakarta in July to scan the 'mountain' that had been constructed in the arena to enable projection mapping. The Mapped Video projection by Creative Technology took place during the Opening Ceremony of The Asian Games in August 2018.
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Classified
And finally a top secret highlight, we can’t disclose all of the details just yet but we undertook a huge topographical survey of 30+ hectares of forestry commission woodland, surveying every tree over 300mm! It was a four week project that involved the whole team on weekly rotations. Watch this space for more details!

2018 was a fantastic year and we can’t wait to see what 2019 brings! In the meantime, we’d like to wish all of our clients, suppliers and friends a very Merry Christmas and a Happy New Year. We look forward to seeing you in 2019.
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Rivers, railways and climate change

22/11/2018

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Earlier this year the Environment Agency warned that climate change was causing rising water levels and would therefore increase the risk of more frequent and dangerous flooding.

These risks also pose a threat to infrastructure. There are thousands of railway bridges across the UK and one of the biggest threats to safeguarding our rail networks is the risk of scour affecting the bridge structures.

Scour assessments have always been a vital tool in terms of monitoring and maintaining Network Rail infrastructure but this is becoming of increasing importance as predominantly Victorian engineering comes under threat from increasingly unpredictable weather and flood events.  

Here at GCS, we have many years experience providing scour assessment and scour protection surveys. For the scour assessment surveys, we provide our clients with elevation, cross section and long section information, enabling river modelling as part of the overall assessment.

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As you can see from the below images of a laser scan as part of a topographic scour protection survey, the detail we can get with a laser scanner is incredibly useful:
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Performing a scour assessment survey allows the level of risk to be determined. The assessment delivers a low, medium or high rating. If the risk level is sufficiently high, we may then be asked to carry out a full scour protection survey. The scour protection survey delivers a high level of topographic and cross section detail to enable greater accuracy modelling as well as facilitating design of protection.

Scour surveys, whether for assessment or protection, can be challenging for many reasons such as remote locations, access challenges as well as unexpected changes in water levels due to weather.

Protection of our railway bridges is often overlooked by passengers but scour assessments are an on-going necessity to ensure the safety and sustainability of future railway services.

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To find our more about our work on rivers and railways, visit our services page.
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The future of the surveying industry meets the pioneers of the oak framing industry

23/10/2018

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Here at Grantham Coates Surveys, we believe in supporting fresh talent into the surveying industry. Jack joined us back in 2017, with no experience whatsoever but a real willingness to learn. Since then he has undergone training and is now the guardian of our laser scanning projects for Oakwrights.
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Nurturing fresh talent requires a blend of on the job training and certification courses. Throughout Jack’s time with us, he has received in-depth training from Senior Members of the GCS team in many locations across the UK. Including a trip to Jakarta earlier this year to survey a 'mountain' that was being constructed for the Asian Games opening ceremony.

Alongside his on the job training, Jack has successfully completed the following certification courses:

  • National Rail Personal Track Safety
  • DC Conductor Rails and Industry Common Induction
  • Water Awareness and First Responder and Powerboat Handling Level 2
  • Confined Spaces
  • CSCS 

Whilst training is still ongoing, Jacks knowledge and capability has progressed and he is now the proud guardian of our laser scanning work for the multi-award winning design and construction company, Oakwrights.

“I'm really pleased to be given the responsibility of the Oakwrights jobs as they challenge me as a surveyor but also give me the responsibility to see a project through from start to finish. The training is tough but worth it and the support I have received from the guys has made my learning on the job really useful”

​​Jack’s first task is to carry out 3d laser scans of the building. The laser scan provides us with an accurate and almost complete point cloud model of the existing structure.
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Once the model has been registered in the office, Jack will draft 3d sections, a plan and elevation details directly from the cloud to provide a 3d wire frame model, such as the one shown below, for the oak frame designers to finalise their dimensions.
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Oakwrights philosophy is to pair modern methods and technology alongside traditional oak framing craftsmanship. “Grantham Coates Surveys have enabled us to design, manufacture and build bespoke oak frame extensions to any property knowing exactly what we’re building onto, making the process more efficient and better for every trade involved.” Head of Oakwrights Country Buildings & GreenRooms

To read more about our laser scanning surveys, click here.

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New website and Rail Professional Article

10/10/2017

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We've recently had our website updated by Imargy limited. http://www.imargy.com/.
Imargy provided a first class service, working to a set timescale and budget all aspects were taken care of with regular meetings to discuss progress and direction. Thanks to Robin for a superb service.

This is our first post since the new site went live, for previous postings please follow the Older Blogs button.

October saw us provide an article to Rail Professional magazine https://e.issuu.com/issuu-reader3-embed-files/latest/twittercard.html?u=railpro&d=october_issue_v1&p=1

Please follow the above link to the digital magazine, our article on Survey for Scour Protection is on page 134.



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Bridge scour survey using laser and sonar scanning

11/11/2016

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Bridge Scour Surveys

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September saw us carry out surveys at two bridges in Scotland. The purpose of the survey was to capture above water and below water details, specifically areas of undercut and missing concrete bag work. We carried out an out of bank topographic survey, full terrestrial laser scan of the bridge abutments, piers and deck. Below water details were captured by a 3D sonar scanner. Deliverables consisted of topographic survey detailing bridge layout (including deck), bed levels (from sonar scan), elevation drawings, laser and sonar scan point clouds. In addition, images from the point cloud were created detailing dimensions of areas of undercut and scour. We also issued a multitude of photographs and survey report covering control established and accuracies achieved.
Elevation view of concrete bag work apron showing areas of missing bags
Terrestrial laser and sonar scans
Elevation view
Colour banding shows area of scour around pier apron
Concrete bag work retaining structure
Terrestrial laser and sonar scan data
If you have a bridge or underwater structure that would benefit from a higher level of detail than would ordinarily be obtained by diving or a standard scour survey then please contact us for a chat. We can carry out bridge surveys to pretty much any specification you need. With RISQS approval railway structures are a speciality.
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Grantham Coates Surveys Limited
2 Arden Court
​Arden Road
Alcester
Warwickshire
B49 6HN

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Tel: 01789 764420
Email: [email protected]
Website: www.gcsurveys.co.uk
© Grantham Coates Surveys Ltd
  • Home
  • About Us
  • Services
    • Drone Surveys
    • Topographical Surveys
    • Railway Surveys
    • River Surveys
    • Measured Building Surveys
    • Laser Scanning Surveys
    • Sub-Station Surveys
  • Blog
  • More
    • Links & Info
    • Staff
  • Contact Us