What would be an appropriate caption for an image of bridge construction underway?

Capturing the essence of an image depicting bridge construction, the chosen caption effectively communicates the current status of the project. It clearly indicates that the bridge is in the active construction phase, which is essential for the viewer to understand what is happening in the image. The phrase "under construction" reinforces the idea that the bridge is not yet completed, highlighting the ongoing effort and labor behind the project.

The other suggestions, while relevant in certain contexts, do not accurately reflect the scene depicted. For instance, discussing the design phase implies a stage that has already passed, which doesn’t align with the image of ongoing construction. Similarly, referencing a city skyline at sunset is unrelated to the construction and provides no information about the bridge. Lastly, the mention of temporary scaffolding removal pertains to a specific aspect of construction that might occur during or after the building process, rather than illustrating the general activity taking place at that moment.