Embedded Files
- Landscape Changes
Arial Photograph of the Winooski River
Arial Photograph of the Winooski River
1927
2004
2020
In the photograph from 1927 at the top you can see the area near the Intervale Center. On the point bar side of the river, there is significant flooding with buildings under water and the fallen bridge. Upstream, just after the Mill, there is an island of vegetation that woody debris likely built up from the flood. The river is evidently very high and wide.
In the photograph from 1927 at the top you can see the area near the Intervale Center. On the point bar side of the river, there is significant flooding with buildings under water and the fallen bridge. Upstream, just after the Mill, there is an island of vegetation that woody debris likely built up from the flood. The river is evidently very high and wide.
In comparison to the 1927 photo, the river in the 2004 photograph is not as wide and there is much more vegetation at the edge of the river. There is some vegetation on the island, as well as on an arcuate bar that has formed. Additionally, near the Winooski Salmon Hole, there is another vegetated patch of land that juts out from the cut bank.
In comparison to the 1927 photo, the river in the 2004 photograph is not as wide and there is much more vegetation at the edge of the river. There is some vegetation on the island, as well as on an arcuate bar that has formed. Additionally, near the Winooski Salmon Hole, there is another vegetated patch of land that juts out from the cut bank.
In the 2020 photograph, the vegetated island and bar have more defined shape, and another island has formed. The river now runs directly through where the land had previously jut out, leave the corner of the land as a vegetated island.
In the 2020 photograph, the vegetated island and bar have more defined shape, and another island has formed. The river now runs directly through where the land had previously jut out, leave the corner of the land as a vegetated island.
There is more variability in the annual maximum flood series than the annual average stream flow series series. The peak annual has a percent standard deviation of 52.10% whereas the average annual is 24.31%. The peak discharge from 1927 was the largest recorded flood event on the Winooski River, because of this, the standard deviation is much higher since an event of such magnitude is uncommon (recurrence interval: 93 years). The average annual series does not include data from 1927. The magnitudes and recurrence interval of storm events are very variable, so, it is reasonable that there would be a greater standard deviation than the average annual stream flow.
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