The Monongahela River Navigation System was acquired by the U.S. Army Corps of Engineers in 1887. Soon after acquisition, the corps began replacing the locks and dams on the lower portion of the river and upgrading the navigation system to accommodate the growing commercial use of the river.
| Date Taken: | 09.01.2023 |
| Date Posted: | 09.05.2023 14:05 |
| Category: | Series |
| Video ID: | 895969 |
| VIRIN: | 230901-A-XW512-1002 |
| Filename: | DOD_109864503 |
| Length: | 00:07:37 |
| Location: | PITTSBURGH, PENNSYLVANIA, US |
| Downloads: | 2 |
| High-Res. Downloads: | 2 |
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