Project description
Our municipal works department needs a small drone pilot to fly a close-up structural survey of the underside of a pedestrian/vehicle overpass — the deck soffit, main girders, diaphragms, bearing pads and abutment seats — without erecting scaffolding, hiring an under-bridge inspection truck, or closing a traffic lane. The bridge carries a two-lane roadway with a separated footpath above a shallow creek bed, and the clearance beneath the girders is tight enough that a small multirotor with prop guards is the only practical way in without disturbing traffic.
The job: fly beneath the deck in a slow, overlapping grid pattern, photographing every girder web, flange, diaphragm connection and bearing from a consistent standoff distance, close enough to resolve hairline cracks, efflorescence, rust staining, exposed rebar and concrete spalling. We need oblique shots of each pier cap and abutment seat, plus a continuous video pass along the full span for context. Every photo must be GPS-tagged and labeled by span number and girder line so our bridge engineer can locate each defect on the as-built drawings without guessing.
Deliverable is an annotated structural condition report: a defect log with photo references, severity flags (hairline / moderate / active spalling), a simple sketch or overlay marking defect locations on the girder elevation, and a short narrative summarizing overall condition compared with the prior inspection two years ago. Raw images and video delivered separately for our archive.
Flight must be scheduled early morning to keep the creek bed dry crossing legal and traffic light, and the pilot needs to carry proof of remote pilot certification and liability insurance, since this is public infrastructure. We can provide the prior inspection report and as-built girder layout on award. Looking to start within two weeks and complete the field flight and report within the stated period.
The job: fly beneath the deck in a slow, overlapping grid pattern, photographing every girder web, flange, diaphragm connection and bearing from a consistent standoff distance, close enough to resolve hairline cracks, efflorescence, rust staining, exposed rebar and concrete spalling. We need oblique shots of each pier cap and abutment seat, plus a continuous video pass along the full span for context. Every photo must be GPS-tagged and labeled by span number and girder line so our bridge engineer can locate each defect on the as-built drawings without guessing.
Deliverable is an annotated structural condition report: a defect log with photo references, severity flags (hairline / moderate / active spalling), a simple sketch or overlay marking defect locations on the girder elevation, and a short narrative summarizing overall condition compared with the prior inspection two years ago. Raw images and video delivered separately for our archive.
Flight must be scheduled early morning to keep the creek bed dry crossing legal and traffic light, and the pilot needs to carry proof of remote pilot certification and liability insurance, since this is public infrastructure. We can provide the prior inspection report and as-built girder layout on award. Looking to start within two weeks and complete the field flight and report within the stated period.
Photography Cash, Bank transfer
