Terraced Rock Cut at a 1960s Dam Excavation Site — Archive & Atlas
AA-2026-FCFF09
AA-2026-FCFF09
On the image
Somebody in the 1960s looked at a mountain and decided it was in the wrong place, then spent a few years proving it. The result is this deep, stepped gash of grey stone, cut in the confident straight lines that only heavy machinery and a government contract can produce, with power lines strung across the gorge as casually as clothesline, because electricity had to arrive before the concrete did.
The terraces climbing the far wall are not natural erosion; they are the visible arithmetic of blasting benches, each level a day's work multiplied by a decade's ambition. Whoever framed this shot was standing where the valley used to be whole, admiring the kind of progress that photographs beautifully and floods a canyon permanently.
A few stubborn pines cling to the rim, ignored by the engineers on the theory that nature could keep whatever scraps weren't structurally useful. It is the look of a project so certain of its own permanence that no one thought to caption the picture with the dam's name.
The historian's note
Large-scale hydroelectric and water-control dam construction expanded across mountainous regions worldwide through the mid-twentieth century, often carving multi-tiered rock benches into valley walls to stabilise foundations before pouring the dam structure itself. The stepped excavation pattern seen here is characteristic of that construction method, used to control blasting debris and create safe working platforms on steep terrain.
Overhead transmission lines crossing such sites were typically temporary construction power feeds, run ahead of the project to supply drills, pumps, and lighting for round-the-clock work schedules common to major infrastructure projects of the era.
Without a legible site marker, the specific dam or quarry cannot be named, but the excavation technique and the visible power infrastructure are consistent with large civil engineering projects undertaken in mountainous regions during the 1960s.
Subjects & keywords — each links to a search
Visually related — by likeness
Terraced Rock Cut at a 1960s Dam Excavation Site. 1960–1969. Archive & Atlas, Historical Image Library, AA-2026-FCFF09. https://thearchive.archiveandatlas.com/library/terraced-rock-cut-at-a-1960s-dam-excavation-site.
@misc{aaAA2026FCFF09,
title = {Terraced Rock Cut at a 1960s Dam Excavation Site},
year = {1960–1969},
howpublished = {Archive \& Atlas, Historical Image Library},
note = {Accession AA-2026-FCFF09},
url = {https://thearchive.archiveandatlas.com/library/terraced-rock-cut-at-a-1960s-dam-excavation-site}
}TY - ART TI - Terraced Rock Cut at a 1960s Dam Excavation Site PY - 1960–1969 PB - Archive & Atlas, Historical Image Library AN - AA-2026-FCFF09 UR - https://thearchive.archiveandatlas.com/library/terraced-rock-cut-at-a-1960s-dam-excavation-site ER -
From the community
Identifications, corrections, and discussion from readers — reviewed by a librarian before appearing here.
Sign in to add an identification, correction, or comment.
No notes yet — be the first to add what you know about this image.