A construction scene in Lokoja, Nigeria, is observed under an overcast sky

A construction scene in Lokoja, Nigeria, is observed under an overcast sky. Four adult males are engaged in the installation of a large concrete culvert section into an excavated trench. A blue and yellow crane truck is positioned on the left, its hydraulic arm extended, lowering a gray circular concrete culvert section. One worker, wearing a yellow hard hat, blue shirt, patterned trousers, and yellow boots, stands within the muddy, water-filled trench, actively positioning the descending concrete ring with his hands. To the right, another worker, shirtless and wearing dark shorts, stands at the trench's edge, observing the operation. A third worker in a blue shirt and patterned shorts is visible near the rear of the crane truck, while a fourth worker is partially obscured behind the worker in the yellow hard hat, within the trench. The trench, filled with muddy water, contains a pre-existing, partially submerged concrete slab with visible wooden formwork along its edges, serving as a base. Piles of excavated brown earth are accumulated along the trench perimeters. The background features green foliage, including a prominent palm tree on the right, and distant hills under the cloudy sky. The ground around the construction area is unpaved and muddy.