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Marion County, Oregon
Land Surveying in Marion County, OR
Boundary, topographic, and construction staking surveys that put the design on the ground accurately the first time. Marion County is covered on a project basis through our Seattle, WA regional hub.
- Dispatched from
- Seattle, WA regional hub · project-based mobilization
- Lead time
- Set in the proposal, with mobilization planned around your pour and earthwork schedule
- Laboratory
- Sugar Land, TX laboratory under chain of custody, or a mobile laboratory for large projects
- Reporting
- Reviewed and issued under a documented quality system; formatted for owner, engineer, and building-official review
- Serving
- Marion County, OR — Portland, Eugene, Salem
- Coverage
- Oregon statewide · 27 regional hubs
- Technicians
- ACI- and NICET-certified field staff; licensed professionals in Oregon
- Call us
- (346) 420-5425
Scope
Survey services in Marion County
- Boundary and title surveys for acquisition and permitting
- Topographic surveys for civil design
- Construction staking: building corners, utilities, paving, and grades
- As-built surveys for closeout and conveyance
Full scope, standards list, and pricing basis: Land Surveying.
Local conditions
Survey conditions in Marion County
Marion County sits at the heart of the Willamette Valley, where agricultural land conversions, warehouse and distribution development along the I-5 corridor, and infill projects in and around Salem create a steady demand for precise survey work. Parcels here often carry irrigation easements, right-of-way dedications, and deed descriptions that reflect decades of farm-era conveyancing — conditions that make thorough boundary research as important as fieldwork. Topographic surveys must account for the Valley's characteristically flat-to-gently-rolling terrain, where modest grade changes can significantly influence grading design, stormwater routing, and utility coordination. Our field crews dispatch through the Seattle regional hub on a scheduled and project-based basis to deliver boundary, topographic, and construction staking surveys that translate engineered designs accurately onto the ground — reducing rework, keeping subcontractors sequenced correctly, and giving project teams the spatial control they need from permit application through final grading.
The Willamette Valley's fine-grained alluvial soils and seasonal wet conditions — including extended periods of winter precipitation — can affect surface stability at staking locations and the timing of site access for field crews. Coordinating survey mobilization around soil saturation windows helps protect both benchmark integrity and schedule.
FAQ · Marion County
How do irrigation easements and historic farm deed descriptions in Marion County affect my boundary survey?
Older agricultural parcels in the Willamette Valley frequently carry deed language tied to water rights, lateral ditch easements, or early subdivision plats that predate modern GPS-referenced coordinates. Our surveyors research recorded instruments, adjoiners' deeds, and relevant county records before fieldwork begins, so conflicts or gap-and-overlap conditions are identified and documented — not discovered after construction starts.
What survey control and datum do you use for projects in Marion County?
Field control is established using the North American Datum of 1983 (NAD 83) for horizontal positions and NAVD 88 for vertical elevations, which align with Oregon's coordinate system requirements and City of Salem and Marion County plan submittal standards. Control points are tied to ODOT or NGS monuments where available, and all control is documented in the deliverable so future crews can re-establish it.
Can wet winter conditions in the Willamette Valley delay construction staking, and how should I plan for that?
Saturated soils common in Marion County's October-through-April wet season can restrict crew access to staked areas and cause stakes to heave or shift if set prematurely. We recommend scheduling staking in coordination with your earthwork contractor's actual mobilization window rather than permit issuance date. Build lead time into the schedule and notify us of access changes as grading phasing evolves.
Which office covers survey in Marion County, OR?
Field work in Marion County is dispatched through the Seattle, WA regional hub, about 187 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Marion County projects.
Are the technicians you send to Marion County certified?
Field sampling and testing in Marion County are performed by our ACI- and NICET-certified technicians. Survey engineering and professional services are delivered with professionals licensed in Oregon, coordinated under one proposal.
Scheduling & proposals
Need land surveying in Marion County?
Call to schedule a technician, or send project documents for a written proposal.