Bridge & Infrastructure Scanning in Rodeo, CA

Rodeo Creek runs about eight miles from the hills to San Pablo Bay and crosses the community at the point where its structures matter most. Parker Avenue and San Pablo Avenue meet the creek in the old part of town, Interstate 80 passes over the lower watershed on an embankment built partly from fill taken when the 1890 Rodeo dam was decommissioned, and a Contra Costa County pedestrian bridge carries the Willow Avenue crossing of the creek. That footbridge is a fair illustration of why measured geometry matters: the county closed it in 2025 after a routine preventative bridge inspection found damage, and has been assessing repair approaches since. Add the shoreline rail corridor, the State Route 4 connection, and the wharf and marine structures on the industrial waterfront, and the range of assets is wide for an unincorporated community of this size.

Every structure job starts with control. We set monuments, observe them with GNSS and total station, adjust the network by least squares on NAD83 State Plane California Zone 3 and NAVD88 with independent check observations, register each Trimble scan position into it, and report the residuals on the deliverable. From there the cloud yields what the engineer actually needs: deck and soffit surfaces, girder, truss, and stringer geometry, abutment, wingwall, and pier faces, bearing and joint conditions, section loss and deflection on a damaged member, channel bed and bank sections at the opening, and fender, deck, and pile geometry on a marine structure where access allows. Because the measurement is non-contact and made at range, a member that cannot bear a person's weight is still fully documented, and a repeat epoch differenced against the baseline turns suspected movement into a number.

Deliverables include registered E57 or RCP clouds, DWG or DXF plans, sections, and elevations, clearance and section reports, and epoch difference maps. See infrastructure scanning, Rodeo 3D scanning, and deformation monitoring.