Topographic Surveys in Oakland, CA

Oakland is really two survey environments in one city. In the flatlands — West Oakland's Victorian blocks, the Jack London Square warehouse district — a topographic survey is mostly about drainage: spot elevations at fractions of a foot that tell a civil engineer which way water actually moves across a nearly level lot. In the hills it is a different discipline entirely. Montclair and Rockridge sit on steep, irregular parcels where the S-11 hillside overlay and the city's grading regulations demand accurate contours before a permit set gets serious review, and where downslope and upslope conditions drive foundation design, retaining walls, and daylight-plane calculations. Lots rebuilt after the 1991 Oakland Hills firestorm often carry engineered slopes and older retaining structures that any new design has to reconcile with. The Hayward fault's Alquist-Priolo zone runs through these same hills, so site plans for affected parcels get scrutinized closely.

This is where our Trimble terrestrial laser scanner changes the economics of a topo. A conventional total-station topo captures a few hundred shots — one pole placement at a time, and on a 30-percent Montclair slope every placement is slow and sometimes unsafe. The scanner captures millions of survey-grade points in a single visit, and we filter vegetation from the cloud to extract a true ground model even under oak canopy and ivy-covered banks. We deliver 1-foot contours (tighter on request), a DTM, spot elevations, and a layered DWG/DXF base map your architect and civil engineer can design on directly, plus the point cloud itself. When the designer needs a shot we did not anticipate — a wall face, a rim elevation, a tree trunk diameter — it is already in the cloud. No return trips.

Records supporting the boundary basis of our topos run through the Alameda County Recorder, with survey filings handled by the Alameda County Surveyor's office. Where a project needs both property lines and terrain resolved together, see our combined boundary + topographic site plan surveys.