Case Studies
The decisions that changed the outcome.
Named erection engineering and heavy lift projects, each chosen because the sequence, the method, or the interface created a commercial consequence worth understanding.
Every case study below is built the same way: what was actually done, why that method was selected over the alternatives, and where the commercial exposure sat. Sources are cited and figures are verified against primary references. Grouped by sector — each sector also has its own hub page covering the methods involved.
Bridges & Viaducts
Sector hub →One of the Few Bridges Erected Using Three Methods in One Project
Three erection methods in one project
Millau Viaduct
Incremental launching across the Tarn Valley
Pioneering Balanced-Cantilever Erection with a Launching Gantry
Early launching-gantry erection in balanced cantilever
Akashi Kaikyo Bridge
An earthquake lengthened the span mid-erection
Most ILM launches fight gravity to move the deck. On the Woronora River Bridge, the engineers had to fight gravity to stop it.
Downhill incremental launch at 4.7% grade
Cable-Crane Arch Erection Above the Himalayas
World's highest railway bridge, erected with no access from below
22 Arch Segments, 22 Separate Erection Studies
Non-repeating dune geometry, Abu Dhabi
The Pilot Line That Decided Everything
Rocket-launched pilot line across an 1,100 m gorge
The Record Span Built Inside a Tidal Window
530 m concrete cable-stayed span, Norway
55 km of Viaduct Above a Highway That Never Closed
Span-by-span precast above live traffic, Bangkok
The Record Cantilever That Kept Deflecting
Balanced cantilever, long-term sag and a late change of system, Palau
Building From a 208-Metre Pier
Balanced cantilever from the tallest pier of its type, Mexico
The Deck Went Ahead of the Arch
A 280 m arch hung from its own deck, Porto
Cantilevered as a Box, Widened Later
178 m piers, a 25-year record, Germany
Offshore & Marine
Sector hub →50,000-Ton Skid: The Onshore Heavy Lift Behind Bullwinkle
50,000-ton jacket — largest offshore loadout
The Spar That Upended Itself in the Gulf of Mexico
Self-upending hull, no crane, ballast-controlled
Troll A — Installing the Tallest Structure Ever Moved by Humans
472 m gravity-base tow-out, no lift required
Deepwater Tendon Installation Off the Congo Coast
Tension-leg platform installed in 800 metres of water
The Heaviest Crane Lift Ever at Sea
17,000-tonne tandem crane lift, North Sea
Towing the Heaviest Object Ever Moved by Humans
1.4 million tonnes displaced, Condeep tow-out
Parbuckling a Structural Unknown
Righting a 114,500 GT hull with a shifting load case
Offshore Wind
Sector hub →Proving Offshore Wind Could Be Built at Scale
First large-scale offshore wind farm
The Floating Wind Farm Engineered to Avoid Floating
World's largest floating wind farm, spar-buoy hulls
Dogger Bank — Installing 277 Foundations for the World's Largest Offshore Wind Farm
277 monopiles, three phases, record flange
Building the World's First Offshore Wind Farm With No Installation Playbook
World's first commercial offshore wind farm, 1991
When the Jacket Isn't Working as Designed Yet
Temporary loading states during load-out and upending
Installing the World's Largest Offshore Wind Farm
175 turbines, monopile foundations, North Sea
Built on Borrowed Oil & Gas Technology
Five jacket foundations, the first US offshore wind farm
Industrial Construction
Sector hub →Nuclear-Grade Precision at Multi-Hundred-Tonne Scale
1,200-tonne modules, 20 cm clearance
Assembling the World's Largest TBM at the Bottom of a Pit
Confined heavy lift, one-directional assembly
Honghai Crane — Building the World's Largest Movable Gantry Crane
22,000-tonne crane, erected before it could lift
Moving 15,500 Tonnes in Perfect Synchrony
Synchronized ship-lift towers, Three Gorges Dam
A 2,600-Tonne Reactor Lift, Ten Days Ahead of Schedule
Record single-crane lift, Shenghong refinery
3,037 Tonnes, Six Days, One T-Shaped Travel Path
Record crawler-crane lift inside a congested petrochemical site
Modular Installation
Sector hub →Stacking a Skyline From Prefabricated Modules
1,899 modules stacked into 140 m towers
Ichthys LNG Modules — Moving a 5,200-Tonne Module by Combined SPMT Fleet
Three equipment providers, one operational lead
Huoshenshan & Leishenshan Hospitals — Modular Construction in Ten Days
2,600 beds, prefabricated wards, ten-day build
When Modular Stacking Meets Tolerance Accumulation at Height
World's tallest modular tower, Brooklyn
Stacking a Hotel Built 4,000 Miles Away
Cross-border modular manufacturing, New York
The World's Tallest Modular Hotel That Never Rose
Stalled construction, foundations only
Heavy Transport
Sector hub →Moving 4,800 Tons Without Losing the Structure
Moved 4,800 tons, 2,900 feet inland
Refinery Combination Tower — A 43-Mile Route Under a Compressed Schedule
Routing, not weight, drove the engineering
Abu Simbel — Cutting, Lifting, and Reassembling a Mountain of Stone
1,000+ blocks, reassembled to preserve solar alignment
Moving an 83-Tonne Icon Its Final 400 Metres
Pendulum-suspended statue transport, Egypt
Moving 18 Million Pounds at One Mile Per Hour
World's heaviest self-powered vehicle
Relocating an 18,000-Tonne Mansion Intact
Heaviest building moved intact, Baku
Temporary Works & Erection Strategy
Sector hub →Eiffel Tower
Adjustment designed into the temporary works
The London Eye was raised from horizontal to vertical as a complete, cable-tensioned wheel. The reason is rarely mentioned.
Raised horizontal as a cable-tensioned wheel
FAST Telescope — Erecting a 500-Metre Cable Net Over a Karst Depression
10,000-cable net, structure with no fixed shape
When the Temporary Structure Is the Structure
Cable-supported canopy over a live excavation
No Load Path Until It Closed
Spherical diagrid dome, Las Vegas
Progressive Load Transfer Across a 312-Metre Dome
World's largest free-span dome
Closing a 630 ft Arch in the Air
Two free-standing legs meet at the crown, St. Louis
The Cube Whose Roof Was Cast Like a Bridge Deck
Four prestressed roof beams cast in place, Paris
78 Temporary Supports Under a 14,000-Tonne Roof
Unloading the Bird’s Nest in 35 sub-steps, Beijing
A Concrete Arch That Was Not Yet an Arch
Cantilevered arch erection tied back to rock, Croatia
A Concrete Wing on a Steel Skeleton
The 130 m composite wing of the Tenerife Auditorium
Energy & Power Infrastructure
Sector hub →Modular Construction at 840 Tonnes a Lift
AP1000 reactor modules, world's largest crawler crane
Building the Largest Floating Structure Ever Made
Floating LNG facility, 488-metre hull
Nine Cranes to Erect Some of the World's Tallest Onshore Turbines
Multi-crane coordination, 179-metre hub height
Installing the World's Largest Hydropower Turbines
Tandem 1,300-tonne crane rotor hoist
25,000 Tonnes, 150 Millimetres of Clearance
Float-over installation, world's largest offshore converter station
The Dam That Had to Be Built Cold
Mass concrete in blocks, cooled from within, Black Canyon
New case studies, published weekly.
The EE&HL Newsletter takes one real project situation and unpacks the commercial logic behind it — the decisions, the sequence gaps, the consequences.
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