Heavy Civil Land Surveying for Public Projects
DeMarr Engineering specializes in construction layout and as‑built surveying for heavy civil public projects. In addition to construction layout, DeMarr provides construction advisor support to help ensure the general contractor delivers the project in conformance with approved plans and design intent.
Throughout construction, DeMarr works closely with contractors and project stakeholders to provide accurate field layout, verify constructed conditions, and respond to survey control and layout questions as they arise.
Public projects require strict compliance with approved plans, verified horizontal and vertical control, and complete documentation to meet agency standards and closeout requirements. DeMarr’s attention to detail, disciplined workflows, and thorough reporting make our team a reliable asset to the prime contract holder and contribute to successful project delivery.
DeMarr Engineering specializes in construction layout and as‑built surveying for heavy civil public projects. In addition to construction layout, DeMarr provides construction advisor support to help ensure the general contractor delivers the project in conformance with approved plans and design intent.
Throughout construction, DeMarr works closely with contractors and project stakeholders to provide accurate field layout, verify constructed conditions, and respond to survey control and layout questions as they arise.
Public projects require strict compliance with approved plans, verified horizontal and vertical control, and complete documentation to meet agency standards and closeout requirements. DeMarr’s attention to detail, disciplined workflows, and thorough reporting make our team a reliable asset to the prime contract holder and contribute to successful project delivery.
Public Sector Surveying & Engineering Capabilities
DeMarr Engineering is equipped to provide land surveying and civil engineering services for a wide range of public infrastructure projects, including:
- City and County Infrastructure Improvements
- VDOT Roadway Improvements
- Federal Facilities
- Energy Infrastructure
- Aviation Infrastructure
Land Surveying Services
Our land surveying services for public projects include:
- Control Point Surveying
- Construction Layout / Stakeout
- Quality Control Surveying
- Construction As‑Built Surveys
- Construction Advisor Support
Civil Engineering Plan Services
Our civil engineering plan services include:
- Public Improvement Plans
- Erosion & Sediment Control Plans
- Site Improvement & Grading Plans
- Stormwater Management Plans
- VDOT & DDOT Traffic Control Plans
Our Process
Phase 1: Control Point Recovery & Setup (Pre-construction)
- Recover control points referenced in the design plans
- Verify horizontal and vertical control points to establish project control
- Prepare a report documenting findings and accuracy prior to proceeding with construction stakeout
Phase 2: Construction Stakeout (During Construction)
- Set offset hub & tack, nails, or other appropriate markers for layout reference
- Identify each point with stationing, offsets, and existing elevations as required
- Prepare stakeout exhibits and cut sheets to support contractor interpretation and verification
Phase 3: Quality Control Surveying (During Construction)
- Perform quality control measurements during construction
- Verify formwork location, alignment, and grades prior to concrete placement
Phase 4: As-built Survey (Post-Construction)
- Survey the completed work using precise total station, GNSS, and aerial UAS imagery
- Verify constructed improvements against approved plans
- Prepare final as‑built plats and record drawings as required by the public agency
Construction Advisor Support & Quality Control
Throughout all three phases, DeMarr Engineering provides hourly construction advisor support to assist contractors and project managers with survey‑related questions.
This support includes quality control surveying during construction, coordination with project stakeholders, and timely responses to field issues affecting layout, grades, and alignment.
Partner With DeMarr Engineering
For upcoming public infrastructure projects requiring precise construction layout, verified survey control, and accurate as‑built documentation, DeMarr Engineering is prepared to support your project team. We collaborate with prime contractors, engineers, and public agencies to provide reliable survey data and responsive construction advisor support throughout all phases of construction. Contact DeMarr Engineering to discuss how our heavy civil land surveying services can support your next public project.