01
Highways & Bridges
Alignment control, structure layout and deck surveys for state and municipal corridors.
Construction survey & technology · Arizona · Since 2009
Freeways, bridges, tunnels, pipelines and airfields. We turn plan data into precise, buildable reality.
One scan
5,241,988
measured points describing 61 acres of downtown Phoenix, every tower, tree and curb exactly where it stands.
Fly through itConstruction Surveying3D Machine ControlLiDAR ScanningDrone MappingBIM CoordinationAs-Built Verification
01Who we are
Since 2009 we have helped builders put every footing, beam and curb exactly where the drawings say it belongs. Experienced field crews backed by 3D machine control, LiDAR and drone mapping keep demanding projects on line, on grade and on schedule.
01
0+
Years in the field
Founded in 2009
02
0+
Projects delivered
Vertical, civil & industrial
03
0
Bridges staked
State & municipal work
04
0
Field crews
Plus an in-house UAS team
02What we do
01
Construction Surveying
Control networks, structural and site layout, topographic surveys and pre-pour verification, run with robotic total stations, GNSS and digital levels, then closed out with as-built documentation your owner can trust.
- Control & layout
- Topo
- Pre-pour checks
- As-builts
02
3D Machine Control & Modeling
Clean, field-ready surface models for grading and paving, loaded and supported on your machines so dozers, excavators and pavers cut to design the first time.
- Grading models
- Paving models
- Machine support
- Earthwork quantities
03
LiDAR & Aerial Mapping
Terrestrial scanning and drone LiDAR turn a site into dense, measurable point clouds, orthophotos and surfaces for design, inspection and progress tracking.
- Point clouds
- Orthophotos
- Drone LiDAR
- Part 107 pilots
04
Technology Integration
BIM coordination, field controllers, site radio and networking, and drone program management, wired together so the office, the crews and the machines all work from one current model.
- BIM
- Field controllers
- Site networking
- Drone programs
03Where we work
Built for the hard jobs.
From fast-track federal work to theme-park steel, our crews thrive where tolerances are tight and the stakes are high.
02
Roller Coasters
Anchor bolts, footings and track geometry where a few millimeters matter at 60 mph.
03
Large-Scale Earthworks
Mass grading, subdivisions, landfills and mine sites, modeled, staked and measured at scale.
04
Vertical & Structural
Column grids, embeds and deck elevations for towers, campuses and parking structures.
05
Underground Tunnels
Guidance control and as-built scanning that keep bores and utility corridors on alignment.
06
Airfields
Runway, taxiway and apron surveys built around tight grade tolerances and short closures.
07
Drainage & Water
Culverts, channels, levees and pump stations, where every hundredth of a foot moves water.
08
Industrial Rail
Custom modeling that keeps industrial railroad and transportation projects on track.
04Selected work
Vertical · Healthcare
Northgate Campus
Four towers, a central plant and a parking structure rising on one tight urban block, with three tower cranes sharing the sky.
- Control network
- Structural layout
- As-built scanning
- Weekly drone progress
Energy · PipelineSouthern Arizona
Saguaro Ridge Transmission Line
Three years of route staking, bore guidance and weld-by-weld as-builts on a natural gas transmission line, from the first right-of-way stakes to final tie-ins at the compressor station.
0 mi
of 30-inch line
0
HDD crossings
0
welds as-built
$0M
program
05How we work
- 01
Plan the control
We review the plan set, tolerances and schedule with your team, then design a control network and survey plan that fits the way you build.
- 02
Capture in the field
Robotic total stations, GNSS rovers, laser scanners and survey drones capture dense, precise data in the field.
- 03
Model & verify
Raw observations become checked models, surfaces and deviation reports, delivered in the formats your designers and machines already use.
- 04
Support through closeout
The same crew stays with you to turnover, answering field calls fast and closing out with as-built documentation the owner can trust.
06The toolkit
01Aerial mapping & LiDAR
Survey drones
- RTK-corrected flight lines
- LiDAR and photogrammetry payloads
- FAA Part 107 certified pilots
02Layout & scanning
Robotic total stations
- One-person robotic layout
- Automatic prism tracking
- Scanning-capable instruments
03Positioning
GNSS & control
- Network RTK rovers
- Static control campaigns
- Monument recovery and setting
Interactive
Fly through a real LiDAR scan in your browser.
Three million points of downtown Phoenix. Fly between the towers, read real-world coordinates and switch between intensity and elevation views.
07Client word
Gridline & Grade ran the tightest layout program we have had on a structure this size. Their crew caught a column-grid conflict a week before the pour and saved us a rework we would still be paying for.
Credentials
- Registered Land Surveyors
- FAA Part 107 pilots
- OSHA 30 field crews
- ALTA/NSPS surveys
08Careers
We are always looking for the right new teammate. If precision, big projects and new technology get you out of bed in the morning, we would like to hear from you.