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A TBM bores through an Ecuadorian mountain as part of a challenging hydroelectric project.
Workers prepare the rebar for a drill shaft on a North Texas road project.
The enormous new locks for the Panama Canal's Third Lane Expansion take shape.
São Paulo, Brazil
The TBM boring the Linea 4 subway line beneath Brazil's largest city.
Abra Pirhuayani, Peru
A grader prepares the road surface for a highway more than 15,500 feet above sea level in the Andes.
A tanker ship passes through one of greatest feats of modern construction, the Panama Canal.