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Overview

Active Merri River EstuaryWatch Group

The Merri Estuary is located near Warrnambool in southwest Victoria. The river has two openings to the sea, both artificially modified. In 1859, the course of the Merri River was diverted in an attempt to prevent sedimentation in Lady Bay (Gill 1984). The main channel of the Merri River now discharges into the sea at Stingray Bay east of Pickering Point.

Map

Estuary Values

Estuary Threats
Recent Events
No recent estuary events found
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Sites

M1
Stanley Street
Active Physico-Chemical 27-10-2013 - 08-02-2025

Monitoring has historically been conducted from the pedestrian crossing on the downstream side of the Stanley Street (Edwards Bridge), Warrnambool.

In February 2022, this site was temporarily moved 100m upstream onto the left bank of the Merri River, with sampling occurring from the new floating pontoon while the new bridge was under construction.

Sampling has since returned to the Edwards Bridge in 2024 once the new bridge was completed; undertaken on the downstream (southern) side pedestrian access.

Observations 124
M2
Fonterra Floating Pontoon
Active Physico-Chemical 17-11-2013 - 08-02-2025
The floating pontoon at the end of the Esplanade, Warrnambool. Observations 124
MGB
Merri River Water Level Gauge Board
Active Gauge Board

Gauge board can be found on the retaining wall downstream of the Stanley Street Bridge.  When looking downstream from the pedestrian bridge you will see it on the right.

MMC1
Sting Ray Bay
Active Mouth Condition 27-10-2013 - 08-02-2025
Where the Merri River exits into Sting Ray Bay. Observations 132
MMC2
Rutledges Cutting
Active Mouth Condition 07-12-2013 - 08-02-2025
Beach access track at the most eastern carpark in Belfast Coastal Reserve. Observations 125
Mp1
Stingray Bay
Active Photopoint 27-03-2014 - 08-02-2025
Photo is taken at the bottom of the beach access stairs near Emergency marker WCC112, Sting Ray Bay. Photos 466
Mp2
Rutledges Cutting
Active Photopoint 10-02-2017 - 09-11-2024
At the end of the beach access track from the easter carpark in Belfast Coastal Reserve. Photos 247

Estuary Snapshots

Full estuary snapshots below use dates where samples at every active monitoring site were recorded. View full and partial snapshots

Summer 2025


Spring 2024


Winter 2024


Autumn 2024


Summer 2024


Spring 2023


Winter 2023


Autumn 2023


Summer 2023


Spring 2022


Winter 2022


Autumn 2022


Summer 2022


Spring 2021


Winter 2021


Autumn 2021


Summer 2021


Spring 2020


Winter 2020


Autumn 2020


Summer 2020


Mouth Condition Snapshots


Mouth Condition 08-02-2025 #16712




Mouth Condition 11-01-2025 #16644




Mouth Condition 07-12-2024 #16599




Mouth Condition 09-11-2024 #16539




Mouth Condition 12-10-2024 #16500





Mouth Condition 14-09-2024 #16436




Mouth Condition 10-08-2024 #16356




Mouth Condition 13-07-2024 #16275




Mouth Condition 08-06-2024 #16201




Mouth Condition 11-05-2024 #16191




Mouth Condition 13-04-2024 #16109




Mouth Condition 16-03-2024 #16105




Mouth Condition 10-02-2024 #16007




Mouth Condition 11-11-2023 #15834




Mouth Condition 14-10-2023 #15793




Mouth Condition 09-09-2023 #15756




Mouth Condition 12-08-2023 #15694




Mouth Condition 17-06-2023 #15577




Mouth Condition 13-05-2023 #15520




Mouth Condition 15-04-2023 #15457




Mouth Condition 11-03-2023 #15342




Mouth Condition 11-02-2023 #15277




Mouth Condition 14-01-2023 #15220




Mouth Condition 08-10-2022 #15068




Mouth Condition 10-09-2022 #15007




Mouth Condition 13-08-2022 #14937




Mouth Condition 09-07-2022 #14873




Mouth Condition 11-06-2022 #14736




Mouth Condition 09-04-2022 #14588




Mouth Condition 12-02-2022 #14489




Mouth Condition 11-12-2021 #14397




Mouth Condition 13-11-2021 #14344




Mouth Condition 09-10-2021 #14310




Mouth Condition 11-09-2021 #14280




Mouth Condition 14-08-2021 #14240




Mouth Condition 10-07-2021 #14200




Mouth Condition 12-06-2021 #14159




Mouth Condition 08-05-2021 #14123




Mouth Condition 10-04-2021 #14119




Mouth Condition 20-03-2021 #14020




Mouth Condition 20-02-2021 #13991




Mouth Condition 12-12-2020 #13896




Mouth Condition 10-10-2020 #13813




Mouth Condition 10-08-2020 #13814




Mouth Condition 11-07-2020 #13747




Mouth Condition 20-06-2020 #13723




Mouth Condition 14-03-2020 #13636




Mouth Condition 08-02-2020 #13563




Mouth Condition 11-01-2020 #13500