Starkville US Army Reserve Center
SEAS was contracted by the USACE Louisville District to perform a boundary/ topographic/ ALTA/ ACSM land title survey of approximately 14.13 +/- acres located in Oktibbeha County, MS. The survey effort consisted of the following tasks:
- Establish/set two horizontal and vertical points from a control network/GPS campaign
- Make horizontal ties to the property/ commencement corners
- Establish a north/south baseline parallel with the east property line
- Cut grid lines and collect topographic data along the desired 20’ grid interval
- Survey all planimetric features (visible utilities) within the survey limits
Schedule and Project Challenges: The notice to proceed was given 7 March 2016 with a delivery date of 21 April 2016. There was no deed access for the subject parcel. All the roadways and easements were prescriptive. Additional deed research was required to complete the survey. The field work began on March 10th and was completed on March 19th. Despite the additional research, the survey was completed on time and in accordance with USACE EM guidelines.
Topographic Data Collection: SEAS used Topcon GR5 dual frequency GPS receivers to establish site control via a GPS control network, make boundary/ commencement ties and perform topographic data collection in the open areas of the project. SEAS used a total station with onboard data collection to collect topographic data within heavily wooded areas. All the data collection was point and line coded per Louisville/ A/E/C CADD standards.
Data Processing: After completion of the data collection, the raw data files were reviewed to ensure that the data file matched the coordinates of the control points, field book inputs and all collected data points had the correct rod height and code attached. The GPS data was submitted to NGS OPUS and the control network data was processed to establish final coordinates. The network adjustments was made both horizontally and vertically to arrive at the final deliverable coordinates. The Boundary Solution was resolved in coordination with the Louisville Geospatial Branch.
Deliverables: Once the final coordinate file was derived, the point file was imported into MicroStation so that the desired drawings could be produced. SEAS delivered the following data for this project: Ascii data files, control cards of the two newly established control points, copies of the field notes, a MicroStation DGN file of the boundary survey and of the topographic survey, PDF files of the surveys, a survey report, geotagged photos and hard copy signed and sealed surveys of the subject parcel.
