OUR SERVICES

Control Survey

Control surveys are carried out to establish precise horizontal and vertical positions of reference monuments. These serves as the basis for subsequent surveys for projects such as topographic and hydrographic mapping, boundary delineations, road and construction planning, design and layout. We employ GPS/GNSS for the establishment of control points in static post-processing and RTK mode.

Control Survey

Firm’s Experience: Control Survey

Control surveys are carried out to establish precise horizontal and vertical positions of reference monuments. These serves as the basis for subsequent surveys for projects such as topographic and hydrographic mapping, boundary delineations, road and construction planning, design and layout. We employ GPS/GNSS for the establishment of control points in static post-processing and RTK mode.

I.          Control network for topographical Survey and Mapping of Trashigang and Rangjung Thromdes in static and RTK mode.

 Client:  Department of Human Settlement, MoWHS, Thimphu

  • 36 Control monuments constructed and observed with GNSS in static mode.
II.         GPS/GNSS Control network for Adit Survey of Nikachhu HPP (DPR) Trongsa.
  • 12 Control monuments constructed and observed with GNSS in static mode.
III.        Control network for topographical Survey and Mapping of Gamri HPP (PFS), Trashigang.
  • 18 Control monuments constructed and observed with GNSS in static mode.
IV.        Control network for topographical Survey and Mapping of Gyalposhing Town, Monggar.
  • Client: Department of Human Settlement, MoWHS, Thimphu
V.         Control network for topographical Survey and Mapping of Nganglam Proposed Regional Hub, Pemagatshel.
  • Client: Department of Human Settlement, MoWHS, Thimphu
VI.        Control network for topographical Survey, Mapping of Kurichhu Hydropower Plant Augmentation    Project, Gyalpozhing, Monggar.
  • Client: Druk Green Power Corporation, Thimphu.
VII.          Control network for topographical survey at Chipchipokto and Thomendra, Nikachhu HPP, Trongsa.
  • Client: Druk Green Power Corporation, Thimphu.
VIII.      Control network for Topographical survey of 200 acres at Banglapokto, Trongsa for DGPC for Nikachhu HPP Dam site alternative 2.
  • Client: Druk Green Power Corporation, Thimphu.

Photogrammetry and Remote Sensing

Since our firm went into operation in 2011, the following are some of the photogrammetric projects that we have taken up for various clients in the recent past.

Photogrammetry and Remote Sensing

Firm’s Experience: Photogrammetry and Remote Sensing

Since our firm went into operation in 2011, the following are some of the photogrammetric projects that we have taken up for various clients in the recent past. The projects undertaken so far are:

I.  Topographical Survey, Mapping and Geodatabase development for Kabisa Local Area Plan under Kawang gewog, Thimphu

Fig.1: Cadastral Data Overlay on Ortho Image

Major activities carried out are:

  1. Input used GeoEye 1 Stereo Imagery
  2. GCP observation
  3. Control densification for terrestrial surveys
  4. Image restitution and bias removal in RPCs
  5. Photogrammetric processing
    1. DEM generation and editing
    2. Ortho rectification and Ortho-Mosaicking
    3. Integration of terrestrial and photogrammetric data
    4. Stereo digitizing of Building features

      Fig. 2: Topographic Map

  1. Overlay of Cadastral Data on Ortho Imagery
  1. Topographic Mapping at scale 1:1000 and 1 m contour interval
  1. Area Surveyed and Mapped: 2 sq. km
  2. Client: Thimphu Dzongkhag Administration. Completed and delivered

II.  Topographic Survey and Mapping of Rotpashong Hydropower Project, Monggar.

Topographic Layout map of the project Area

Major activities carried out are:

Topographic Layout map of the project Area

  1. Input Imagery is GeoEye 1 Stereo Imagery
  2. GCP observation
  3. Control densification for terrestrial surveys
  4. Image restitution and bias removal in RPCs
  5. Photogrammetric processing
    1. DEM generation and editing
    2. Ortho rectification and Ortho-Mosaicking
    3. Integration of terrestrial and photogrammetric data
    4. Stereo digitizing of Building features
  6. Topographic Mapping at scale 1:5000 and 5 m contour interval
  7. Area Surveyed and Mapped: 65 sq km
  8. Client: DGPC, Thimphu, Bhutan. Completed and delivered.

III. Topographic Survey and Mapping of Gamri Hydropower Project, Trashigang

Ortho Image

Major activities carried out are:

  1. Input Imagery is WorldView 1 Stereo Imagery
  2. GCP observation
  3. Image restitution and bias removal in RPCs
  4. Photogrammetric processing
  5. DEM generation and editing
  6. Ortho rectification and Ortho-Mosaicking
  7. Integration of terrestrial and photogrammetric data
  8. Stereo digitizing of Building features

    Topographic Map 1:10000 & 10 m CI

  9. Topographic Mapping at scale 1:10000 and 10 m contour interval

Digital Elevation Model (10mx10m)

IV.   Topographic Survey and Mapping of Thimphu Thromde, Thimphu.

Major activities carried out are:

  1. Input Imagery GeoEye 1 Stereo Imagery
  2. GCP observation
  3. Image restitution and bias removal in RPCs
  4. Photogrammetric processing
  5. DEM generation and editing
  6. Ortho rectification and Ortho-Mosaicking
  7. Integration of terrestrial and photogrammetric data
  8. Stereo digitizing of Building features
  9. Topographic Mapping at scale 1:5000 and 2 m contour interval
  10. Area Surveyed and Mapped: 26 sq km
  11. Client: Thimphu Thromde, Thimphu, Bhutan. Completed and delivered

 

V.    Topographic Survey and Mapping of Phuentsholing Thromde, Phuentsholing

Major activities carried out are:

  1. Input Imagery is GeoEye 1 Stereo Imagery
  2. GCP observation
  3. Image restitution and bias removal in RPCs
  4. Photogrammetric processing
    1. DEM generation and editing
    2. Ortho rectification and Ortho-Mosaicking
    3. Integration of terrestrial and photogrammetric data
    4. Stereo digitizing of Building features
  5. Topographic Mapping at scale 1:5000 and 2 m contour interval
  6. Area Surveyed and Mapped: 26 sq km
  7. Client: Phuentsholing Thromde, Phuentsholing, Bhutan. Completed and delivered

River Survey

The river surveys have been carried out mainly for the development of cross-section and longitudinal profiles for various hydropower projects. To measure the river depth, we employ Teledyne Stream Pro, total station and GNSS for locational data measurement

River Survey

Firm’s Experience – River Survey

The river surveys have been carried out mainly for the development of cross-section and longitudinal profiles for various hydropower projects. To measure the river depth, we employ Teledyne Stream Pro, total station and GNSS for locational data measurement.

Some of the projects undertaken are:

  • River Cross-Section Survey at Dam Axis for 118 MW Nikachhu Hydropower Project, Trongsa.

Client: Hindustan Construction Company (HCC), India. Completed and delivered

  • River Cross-Section Survey for Kuri-I HPP, Monggar.

Client: DGPC, Thimphu. Completed and delivered

  • River Cross-Section Survey at Dam Axis for 118 MW Nikachhu Hydropower Project, Trongsa.

Client: DGPC, Thimphu. Completed and delivered

  • River Survey: Cross-section and Longitudinal profile for Dorjilung (Rotpashong) Hydropower Project, Monggar.

Client : DGPC, Thimphu. Completed and delivered

  • River Survey: Cross-section and Longitudinal profile for Gamri Hydropower Project (I&II), Trashigang.

Client:  DGPC, Thimphu: Completed and delivered.

  • River Survey: Cross-section and Longitudinal profile for NyeraAmaRi HPP Integrated (I&II), Samdrup Jongkhar/Trashigang – DPR.

Client:  DGPC, Thimphu: Completed and delivered.      

  • River Survey: Cross-section and Longitudinal profile for NyeraAmaRi HPP Integrated (I&II), Samdrup Jongkhar/Trashigang – PFS.

Client:  DGPC, Thimphu: Completed and delivered.

Close

Surveying and Mapping

Topographical surveys and maps are the basic requirement at the initial stages of infrastructure development for evaluating all particular problem areas of engineering.

Our firm is equipped with modern technology based equipment to assist us in successfully handling the demands of carrying out Topographical Surveys and mapping in hostile terrain of the Himalayas as per the specific demands of our customers.

Surveying and Mapping

Firm’s Experience: Topographic Survey and Mapping

Topographical surveys and maps are the basic requirement at the initial stages of infrastructure development for evaluating all particular problem areas of engineering.

Our firm is equipped with modern technology based equipment to assist us in successfully handling the demands of carrying out Topographical Surveys and mapping in hostile terrain of the Himalayas as per the specific demands of our customers.

Our expertise lies in offering qualitative, cost effective as well as reliable services. Our firm has rich industry experience in successfully carrying out topographic survey services for preparation of PFS and DPRs for hydropower development, infrastructure development, in preparation of mines and quarry development.

I. Topographical Survey and Mapping of Trashigang and Rangjung Thromdes.
The salient features of the projects are:
  1. Establishment of geodetic control network using GNSS/GPS in static and RTK mode.
  2. Large scale topographic survey and mapping of 1.54 Sq.km at scale 1:1000 and 1 m contour interval.
  3. Duration: 6 months (October 2016 -March 2017)
  4. Client: Department of Human Settlement, MoWHS, Thimphu
II. Topographical Survey and Mapping of Gyalposhing Town, Monggar.

The main project components are:

  1. Densification and establishment of control network using GNSS/GPS in static post-processing and RTK mode.
  2. Topographic survey of 1.54 Sq.km at scale 1:1000 and 1 m contour interval.
  3. Duration: 1 month (January 2015)

  4. Client: Department of Human Settlement, MoWHS, Thimphu

III.  Topographical Survey and Mapping of Nganglam Proposed Regional Hub, Pemagatshel.

  1. Densification and establishment of control network using GNSS/GPS in static post-processing and RTK mode.
  2. Topographic survey of 5.2 Sq.Km at scale 1:1000 and 1 m contour interval.
  3. Mapping and output in AutoCAD format.

  4. Client: Department of Human Settlement, MoWHS, Thimphu

IV.  Topographical Survey, Mapping of Kurichhu Hydropower Plant Augmentation    Project, Gyalpozhing, Monggar.

Some of the major activities executed for the project are:

  1. Establishment of control and densification using GNSS/GPS.
  2. Surveying and Mapping at scale 1:1000 with 1 m contour interval using Total Station.
  3. Client: Druk Green Power Corporation, Thimphu.
V. Topographical survey at Chipchipokto and Thomendra, Nikachhu HPP, Trongsa.

Some of the major activities executed for the project are:

  1. Establishment of control and densification using GNSS/GPS.
  2. Surveying and Mapping at scale 1:1000 with 1 m contour interval using Total Station.
  3. Client: Druk Green Power Corporation, Thimphu.

VI.  Topographical survey of 200 acres at Banglapokto, Trongsa for DGPC for Nikachhu HPP Dam site alternative 2.

Some of the major activities executed for the project are:

  1. Establishment of control and densification using GNSS/GPS.
  2. Surveying and Mapping at scale 1:1000 with 1 m contour interval using Total Station.
  3. Client: Druk Green Power Corporation, Thimphu.
VII.       Proposed golf course site survey at Shingkhar, Bumthang.

Some of the major activities executed for the project are:

  1. Establishment of control and densification.
  2. Surveying and Mapping at scale 1:500 with 0.5 m contour interval using Total Station.
  3. Area Surveyed and Mapped: 222 Acres

Client:  Nob Minerals.  Completed and delivered.

TEAM

GIS

A geographic information system (GIS) lets us visualize, query, analyze, and interpret data to understand relationships, patterns, and trends. GIS is one of the most popular interfaces where geo data is stored, manipulated, analyzed, visualized and applied in a multiplicity of professions ranging from environment management, disaster management, urban planning, land management, crime analysis, etc.

GIS

Firm’s Experience: GIS

A geographic information system (GIS) lets us visualize, query, analyze, and interpret data to understand relationships, patterns, and trends. GIS is one of the most popular interfaces where geo data is stored, manipulated, analyzed, visualized and applied in a multiplicity of professions ranging from environment management, disaster management, urban planning, land management, crime analysis, etc. The knowledge of GIS greatly enhances the productivity and utility of surveyors, engineers, environmentalist, spatial planners, decision makers, etc and takes them to a new height. GIS as a decision support system helps to make informed and optimal decisions based on spatial logic and real data.   Some of the benefits of having a GIS system are:

The following are the projects where a GIS system was developed for planning, inventory and understanding the existing conditions of farm roads and irrigation canals in the country.

I.   Development of Digital Base Map from Satellite Imagery for Haa Valley.

Major activities carried out are:

  1. Input used WorldView 3 (30 cm) Stereo Imagery
  2. GCP observation
  3. Control densification for terrestrial surveys
  4. Image restitution and bias removal in RPCs
  5. Photogrammetric processing
    1. DEM generation and editing
    2. Ortho rectification and Ortho-Mosaicking
    3. Integration of terrestrial and photogrammetric data
    4. Stereo digitizing of Building features
  6. Overlay of Cadastral Data on Ortho Imagery
  1. Topographic Mapping at scale 1:1000 and 1 m contour interval
  1. Area Surveyed and Mapped: 35 sq. km
II.             Topographical Survey, Mapping and Geodatabase development for Kabisa Local Area Plan under Kawang gewog, Thimphu

Major activities carried out are:

  1. Input used GeoEye 1 Stereo Imagery
    Fig.1: Cadastral Data Overlay on Ortho Image

    Fig.1: Cadastral Data Overlay on Ortho Image

  2. GCP observation
  3. Control densification for terrestrial surveys
  4. Image restitution and bias removal in RPCs

  5. Photogrammetric processing

    • DEM generation and editing
    • Ortho rectification and Ortho-Mosaicking
       
    • Integration of terrestrial and photogrammetric data
       
    • Stereo digitizing of Building features

    6. Overlay of Cadastral Data on Ortho Imagery

Fig. 2: Topographic Map

Fig. 2: Topographic Map

    7. Topographic Mapping at scale 1:1000 and 1 m contour interval

    8. Area Surveyed and Mapped: 2 sq. km

Client: Thimphu Dzongkhag Administration.

  III.           National Irrigation Database & Canal Alignment Mapping, Bhutan.

Major activities carried out are:

  1. Survey and Mapping of Irrigation Canal with GPS
  2. Identifying and mapping of Command Area using satellite imagery
  3. Geo database development for Irrigation Canal Network
  4. Client: Department of Agriculture, MoAF, Thimphu, Bhutan
  5. Duration 3.5 Months
  6. Year 2013
IV.           Validation and Digital Mapping of Farm Roads, Bhutan.

Major activities carried out are:

  1. Survey and Mapping of Farm Roads with GPS
  2. Geo database development for Farm Road Network
  3. Client: Department of Agriculture, MoAF, Thimphu, Bhutan
  4. Duration 3 Months
  5. Year 2012

Cadastral and Land Transaction Services

The NLCS, in pursuit of efficient service delivery has implemented an online land transaction system called eSakor to expedite the process of land conveyance. This system is accessible to every individual citizen of the country. However, a land transaction is a task that not everyone is expected to engage on a regular basis. Therefore, landowners and other interest holders can avail the services of private facilitators on payment of a fee.  The private facilitator takes on the responsibility to ensure that all the documentations are complete and due legal process is followed, finally culminating in the approval of the transaction and issue of new land title certificates.  

Cadastral and Land Transaction Services

Cadastral and Land Transaction Services

The NLCS, in pursuit of efficient service delivery has implemented an online land transaction system called eSakor to expedite the process of land conveyance. This system is accessible to every individual citizen of the country. However, a land transaction is a task that not everyone is expected to engage on a regular basis. Therefore, landowners and other interest holders can avail the services of private facilitators on payment of a fee.  The private facilitator takes on the responsibility to ensure that all the documentations are complete and due legal process is followed, finally culminating in the approval of the transaction and issue of new land title certificates.  

Recently the ‘surveying’ part of the transaction process—plot sub-division along with demarcation surveys have also been regularized for private conduct through certification of some surveyors as “Certified Cadastral Surveyors” upon completion of a training conducted by NLCS.  Earlier these surveys could only be done by NLCS surveyors.

Kheychok Geo Infosys is a Geospatial consultancy firm, specializing in services related to surveying and mapping, GIS, Remote Sensing, Photogrammetry, etc. With the recent opening of land conveyancing/transaction services to the private sector by the National Land Com-mission, we are happy to add this service to our portfolio. 

Coming into ownership of land is often the culmination of years of struggle and hard work. Equally emotive is the circumstances leading to the dispossession of one. Every case requires to be treated with great sensitivity!

Our Certified Cadastral Surveyors are trained to serve with the highest level of integrity and professionalism to ensure qualitative dissemination of the service. They are equipped with modern surveying tools and work in close consultation with the NLCS and its branches in the Dzongkhags/Gewogs to ensure full compliance with existing norms.

Types of Services

  1. Plot Demarcation Surveys

Unsure about the exact locations of the boundary? Our surveyor will stake out the boundary accurately using authoritative data from NLCS.  You can also confirm areas, align walls and fences, check encroachments, and help avoid unnecessary altercations with your neighbors and the government.  

Deliverable: Positional report of the demarcation survey 

  1. Transactions of Whole plots

Transaction of whole plot—is a procedure which involves the trans-fer of ownership of an individual registered plot in its entirety to a new owner. The procedure requires submitting the application form with appropriate information and ensuring all relevant documents are prepared and submitted as prescribed by the NLCS to the Dzongkhag Land Record Office for approval.  

Deliverable: Land title document (LagThram)

  1. Transaction of Partial plots

This transaction involves transfer of a part of a plot and requires physical survey to apportion new plot/plots as required by the transacting parties. The subdivision will be carried out by our certified cadastral surveyors using the latest technology and in full compliance to existing norms.  The legal cadastral data from the NLCS will be used as the base data.  

Deliverable: Lagthram with new parcel maps.

  1. Associated services

Topographical surveys, subdivision planning, stake out surveys or any other types of surveys.

Our Service Coverage

  • At the moment we operate from our offices in Paro (Tshongdue) and Thimphu (Babesa).
  • We take up cases for all Dzongkhags.
  • We are accessible 7 days a week.

Our Major Accomplishments Projects

Following are some of our Major accomplishments:

  1. Topographic Surveying and Mapping of Aiechhu Hydropower Project, Gelephu Bhutan, Client: DGPC
  2. Validation and Digital Mapping of Farm Roads Bhutan, Client DoA, MoAF
  3. Topographical Surveying and Mapping of Nyera Amari Hydroelectric Projects(I&II), Trashigang, Samdrup Jongkhar, Bhutan, Client: DGPC
  4. Topographic Base Mapping of Thimphu Thromde using High Resolution Satellite Imagery, Thimphu, Client: Thimphu Thromde
  5. Preparation of Geodatabase and Topographic & Mapping for Kabisa LAP under Kawang gewog, Thimphu, Client: Thimphu Dzongkhag
  6. National Irrigation Database & Canal Alignment Mapping, Bhutan. DoA, MOAF

Our Major accomplishments

Firm’s Experience

Following are some of our Major accomplishments:

  1. Topographic Surveying and Mapping of Aiechhu Hydropower Project, Gelephu Bhutan, Client: DGPC
  2. Validation and Digital Mapping of Farm Roads Bhutan, Client DoA, MoAF
  3. Topographical Surveying and Mapping of Nyera Amari Hydroelectric Projects(I&II), Trashigang, Samdrup Jongkhar, Bhutan, Client: DGPC
  4. Topographic Base Mapping of Thimphu Thromde using High Resolution Satellite Imagery, Thimphu, Client: Thimphu Thromde
  5. Preparation of Geodatabase and Topographic & Mapping for Kabisa LAP under Kawang gewog, Thimphu, Client: Thimphu Dzongkhag
  6. National Irrigation Database & Canal Alignment Mapping, Bhutan. DoA, MOAF
  7. Topographic Base Mapping of Phuentsholing Thromde, Bhutan, Client: Phuentsholing Thromde
  8. Topographical Surveying and Mapping of Rotpashong HydropowerProject, Mongar, Bhutan, Client: DGPC
  9. Topographical Survey for road design from Sherichhu to Gongrizomsa (67 Km) Mongar, Bhutan: Client: DOR, MOWHS
  10. Topographic Surveying and Mapping of Gamri Hydropower Projects (I&II), Trashigang, Bhutan, Client: DGPC
  11. Topographical survey of proposed Nganglam Township: Client: DoHS, MoWHS
  12. Nganglam– Dechhenling farm road survey for volumetric and planning purpose, Client: Doter Rigtsel Construction