Drone Bridge Inspections Across Ireland
Inspect bridges, viaducts, culverts, and elevated structures safely from the ground. High-resolution imagery, thermal analysis, 3D point cloud data, and ROV underwater surveys of submerged elements, all captured without lane closures, traffic management, or underbridge inspection units. EASA-certified operators with 10 years of experience in complex infrastructure environments.
Ireland has over 12,000 road bridges, hundreds of rail bridges, and numerous pedestrian and legacy structures. Many are ageing, and Transport Infrastructure Ireland (TII), Irish Rail, and local authorities face increasing demand for regular condition assessment. Our combined aerial and underwater inspection capability means we can assess a bridge from parapet to riverbed in a single deployment.
Discuss Your Bridge Inspection Requirements
What We Inspect
Our drone bridge inspections cover the full range of structural elements across all bridge types found on Irish roads and railways.
Deck undersides and soffits – Cracking, spalling, delamination, efflorescence, and reinforcement corrosion. Our drones fly beneath the deck to capture imagery of the underside without requiring underbridge inspection units or lane closures.
Abutments and piers – Scour damage, settlement cracking, vegetation ingress, and masonry deterioration. Close-range imagery with 23x optical zoom captures details often missed during ground-level walk-over inspections.
Parapets, barriers, and expansion joints – Impact damage, corrosion, joint sealant failure, and structural movement.
Bearings and movement joints – Visual condition assessment of bearing pads, rocker bearings, and sliding plates from angles not accessible without specialist access equipment.
Masonry arch bridges – Ring separation, arch barrel cracking, pointing deterioration, and vegetation damage. Ireland’s historic masonry bridges require careful assessment to monitor long-term structural performance.
Thermal analysis – Our thermal imaging capability detects moisture ingress, delamination, and subsurface voids in concrete decks that are not visible to the naked eye. Thermal surveys are particularly effective for identifying waterproofing failures on concrete bridge decks.
Underwater Bridge Inspections with ROV
A bridge inspection is incomplete without assessing what is happening beneath the waterline. Scour around foundations and piers is one of the leading causes of bridge failure, yet it is invisible from above. Our ROV underwater inspection service completes the picture by surveying the submerged elements that aerial drones cannot reach.
Our ROV captures high-definition video and still imagery of:
Foundation and pier bases – Scour depth and extent, undermining, exposed reinforcement, and sediment build-up around foundations.
Submerged masonry and concrete – Erosion, cracking, joint loss, biological growth, and reinforcement corrosion below the waterline.
Riverbed and channel condition – Debris accumulation, scour holes, and changes in bed level that affect hydraulic performance and structural stability.
Culverts and inverts – Internal condition of submerged culverts, pipe bridges, and invert slabs where access from above is not possible.
By combining aerial drone data with ROV underwater footage, we deliver a complete above-and-below-waterline assessment from a single site deployment. This eliminates the need to engage separate contractors for aerial and underwater inspections, saving time and costs while ensuring that both datasets are captured under the same conditions and delivered in a single report.
Why Use Drones for Bridge Inspections?
No lane closures. Traditional underbridge inspection units require traffic management, lane closures, and, in some cases, full road closures. Drone inspections are conducted from the side of the structure with zero impact on traffic flow.
No underbridge units. Hiring an underbridge inspection unit costs thousands of euros per day. A drone inspection captures equivalent or better data at a fraction of the cost.
Complete above-and-below assessment. Our combined aerial drone and ROV underwater capabilities mean we inspect from the parapet to the riverbed in a single visit. No other Irish drone operator offers this integrated service for bridge assessment.
Safer. Nobody works at height. Nobody works over water. Nobody works adjacent to live traffic. The drone and ROV capture all inspection data while personnel remain safely on the bank or bridge deck.
Better data. High-resolution imagery with 23x optical zoom, thermal overlays, 3D point cloud models, and underwater video provide a more comprehensive record than a visual walk-over inspection. Every image is geotagged and timestamped, creating a repeatable baseline for future comparison.
Faster. Most single-span bridge inspections are completed on site in 2 to 3 hours, including aerial and underwater components. Multi-span structures and large viaducts may take a full day.
Deliverables
Every bridge inspection includes a structured inspection report with annotated high-resolution imagery, defect classification by severity, and recommended maintenance actions. Additional deliverables include:
High-resolution stills (up to 45MP) with 23x optical zoom detail of individual defects. 4K video footage of the full structure. Thermal imaging overlays identify moisture, delamination, and temperature anomalies. 3D point cloud models enabling remote measurement and digital inspection. Orthomosaic mapping of the bridge and surrounding area for context documentation.
Most quotes are returned within 24 hours. Call 087 205 2331 for urgent requirements.
Who Commissions Bridge Inspections?
Our bridge inspection clients include TII and its managing agents responsible for the national road network, local authorities managing regional and local road bridges, civil engineering consultancies carrying out principal inspections, Irish Rail for rail bridge and overbridge assessments, utility companies with bridge crossings on their networks, and developers and contractors requiring pre-construction or as-built bridge surveys.
How We Inspect Bridges
Step 1: Brief Us. Tell us which structure needs inspecting, what you need from the data, and any specific areas of concern. We confirm scope, timeline, and cost within 24 hours.
Step 2: Planning and Permissions. We prepare a site-specific risk assessment and flight plan, secure any required airspace permissions, and coordinate with relevant parties, including ATC where applicable.
Step 3: Aerial Inspection. Our EASA-certified pilots conduct the aerial inspection using the appropriate sensor combination. You are welcome on site during the inspection, with a live monitor showing the drone’s camera feed.
Step 4: Underwater Inspection. Where the bridge crosses water, our ROV surveys the submerged face of piers, abutments, foundations, and the riverbed. The ROV pilot operates from the bank with a real-time video feed.
Step 5: Report and Deliverables. All aerial and underwater data is compiled into a single integrated report, typically delivered within 2 to 5 working days, depending on complexity.
Related Services
ROV Underwater Inspections – Below-waterline surveys of bridge foundations, quay walls, and submerged infrastructure.
Drone Infrastructure Inspections – Our full range of infrastructure inspection services, including wind turbines, pylons, telecoms towers, and industrial stacks.
Drone Corridor Surveys – Linear infrastructure mapping for roads, rail, and power line corridors using LiDAR and photogrammetry.
Drone LiDAR Surveys – 3D point cloud data for structural measurement, clearance analysis, and terrain modelling around bridge approaches.
Drones for Local Authorities – How we support local authority infrastructure management programmes.
Drone Railway Inspections – Rail bridge inspections and corridor surveys.
Drones for Utilities – Bridge crossings, pipeline corridors, and utility infrastructure.
Frequently Asked Questions
Yes. Our drones fly beneath bridge decks to capture high-resolution imagery of soffits, bearings, and substructure elements. This is one of the primary advantages of drone bridge inspection – accessing the underside without underbridge units, boats, or rope access.
Yes. Our ROV underwater inspection service surveys the submerged face of piers, abutments, and foundations, assessing scour depth, erosion, cracking, and sediment conditions. Combined with aerial data, this provides a complete structural picture from parapet to riverbed.
No. Drone bridge inspections require no lane closures or traffic management. We operate from beside the structure, and the drone captures all data without any disruption to traffic flow.
Pricing depends on the bridge type, span length, number of structures, location, and deliverables required. Single-span inspections typically start from EUR 800. Multi-span viaducts and complex structures are quoted individually. Contact us for a free quote within 24 hours.
Yes. We regularly inspect masonry arch bridges, recording ring separation, barrel cracking, pointing condition, and vegetation damage. Our non-contact approach is ideal for protected structures where physical access equipment could cause damage.
Get Your Infrastructure Inspected Safely and Affordably
Phone: 087 205 2331 Email: [email protected]