A ninety-year-old bridge, an active retail build, and a tower nobody had to climb.

Gillespie Dam Bridge

One of only two surviving multi-span steel through truss bridges in Arizona, and the main line of US 80 until the 1956 realignment. In 1993 the Gila River destroyed Gillespie Dam outright. The bridge stayed up. Some piers settled and that was the extent of it, because the truss held and the piers were founded in bedrock.

This is the project where the method was tightened. Control from a base station we occupied ourselves, ground control in the solve, and check points deliberately held out of it, because a point used to build the model cannot also be the point that grades it. PPK was then run as a completely separate solution, so the site produced two independent answers to compare rather than one answer to trust.

Aerial capture was fused with terrestrial lidar on the portions that could be reached on foot, giving close-range detail on connections and bearing seats that an aerial pass alone will not resolve.

Measured residuals are delivered with the data on every Verified Capture engagement. Those figures are project records and belong to the client, so we do not publish them here.

Verrado Marketplace

A retail development under construction in Buckeye, on a replat whose boundary was already recorded. That record is an asset most aerial jobs ignore.

Before flying, the plat's line and curve tables were reduced from bearing and distance into predicted positions for every monument called out on it. Brass caps, rebar, found pins. Those positions are not measurements and we do not present them as such. They are search locations, accurate enough to put a crew within arm's reach of a monument instead of sweeping a corner with a shovel.

The crew then recovered what was actually there and occupied it with RTK. Only at that point does a coordinate become a measurement, and only the occupied ones went into the solve. Anything predicted but not found was recorded as not recovered rather than quietly dropped.