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Overview

Active WGCMA Estuary Management Group

Bourne Creek is a small intermittently closing and opening coastal estuarine lagoon (ICOLL) located to the east of the Kilcunda township. The majority of the creek that is considered estuarine is located within protected crownland reserves with good vegetation cover (i.e. the Kilcunda Creek Water Frontage and Kilcunda Coastal Reserves). The broader catchment that feeds the estuary with freshwater is approximately 10 square kilometres, extending as far north as the Kilcunda Ridge Road. This catchment is relatively steep, eroded and contains very little remnant or newly established vegetation.  

Map

Estuary Values

- EVC pre European settlement: (83) Swampy Riparian Woodland (Endangered).

- EVCs that appear to inhabit the site currently: (9) Coastal Saltmarsh, (10) Estuarine Wetland (this is likely to resulted from changes in hydrology resulting from catchment clearing, intensive landuse leading to the loss of top soil and deepening of the creek channels (i.e. lowering of the landscape and creek channels to allow the intrusion of more saltwater into the creek). On top of this the recent need to carry out artificial estuary entrance openings would also have allowed more saltwater into the creek).

- Bird species sighted at Bourne Creek include; Hooded Plover, Sooty Oystercatcher, Eastern Great Egret, Pacific Gull, Greater Sand Plover, Common Diving Petrel

- Fish species at Bourne Creek; Common Galaxias, Spotted Galaxias, Short-finned Eel, Flatheaded Gudgeon, Black Bream.

- The old trestle bridge that goes over Bourne Creek is a tourist attraction and popular amongst photographers.


Estuary Threats

Unpermitted estuary entrance openings, growing populations, changes in water regimes, high levels of sediment and nutrients, pollution events, habitat modification, land reclamation, Invasion by weeds and pest animals, salinisation and acidification, bank instability, livestock access and altered marine exchange.

 

Recent Events
Event Details
03-09-2024 Estuary Entrance Opening

An artificial opening was approved to go ahead at Bourne Creek estuary after water levels reached 2.56mAHD which was enough to inundate the emergency lane of Bass Highway. The next morning water levels had dropped 10cm and water levels are expected to drop further during the week

02-04-2024 Estuary Entrance Opening

After 77mm rain over April 2-3, Bourne Creek naturally opened to the ocean. 

07-05-2023 Estuary Entrance Opening

With over 20mm of rain, Bourne Creek naturally opened sometime over the weekend dropping water levels to 2.04mAHD.

06-07-2022 Community Event

New gauge boards have been installed at Bourne Creek. Note that AHD height = Gauge height + 1.5.

03-06-2022 Estuary Entrance Opening

With water levels approaching Bass Highway (only 50mm below) and 40mm of rain forecasted over the weekend, the decision was made to artificially open Bourne Creek at high tide. The opening was successful in lowering water levels at least 0.6m.

View all events

Sites

Bo1
Bourne Creek Eastern Bank Phys/Chem
Active Physico-Chemical 24-05-2016 - 11-02-2025

Grassy bank 20 metres upstream of the Kilcunda Rail Trail Trestle bridge. Eastern bank of the creek.

Observations 78
BoGB
Bourne Creek Gauge Board
Active Gauge Board

Bourne Creek gauge board located on the eastern bank downstream of Bass Highway bridge and upstream of trestle bridge.

BoMC
Bourne Creek Mouth Condition Monitoring Site
Active Mouth Condition 27-04-2017 - 11-02-2025

Mouth of Bourne Creek.

Observations 130
Bop1
Bourne Creek Photopoint Site One
Active Photopoint 15-05-2017 - 11-02-2025

Eastern side of the Kilcunda Rail Trail (Trestle) Bridge, using the corner of the handrail (Oceanside) where the timber meets the gravel path as a guide.

Photos 335

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


Autumn 2021


Summer 2021


Winter 2020


Autumn 2020


Summer 2020


Mouth Condition Snapshots


Mouth Condition 11-02-2025 #16724


Mouth Condition 23-01-2025 #16684


Mouth Condition 02-01-2025 #16668


Mouth Condition 15-11-2024 #16640


Mouth Condition 25-10-2024 #16639


Mouth Condition 15-10-2024 #16638


Mouth Condition 26-09-2024 #16472


Mouth Condition 23-09-2024 #16474


Mouth Condition 20-09-2024 #16475


Mouth Condition 16-09-2024 #16476


Mouth Condition 09-09-2024 #16415


Mouth Condition 04-09-2024 #16401


Mouth Condition 03-09-2024 #16400


Mouth Condition 30-08-2024 #16399


Mouth Condition 29-08-2024 #16398


Mouth Condition 08-08-2024 #16362


Mouth Condition 30-05-2024 #16361


Mouth Condition 30-04-2024 #16151


Mouth Condition 12-04-2024 #16113


Mouth Condition 27-03-2024 #16097


Mouth Condition 08-02-2024 #16001


Mouth Condition 16-01-2024 #15965


Mouth Condition 18-12-2023 #15947


Mouth Condition 28-11-2023 #15897


Mouth Condition 16-11-2023 #15841


Mouth Condition 16-10-2023 #15805


Mouth Condition 15-09-2023 #15786


Mouth Condition 11-07-2023 #15655


Mouth Condition 14-06-2023 #15569


Mouth Condition 30-05-2023 #15556


Mouth Condition 09-05-2023 #15514


Mouth Condition 01-05-2023 #15506


Mouth Condition 19-04-2023 #15480


Mouth Condition 04-04-2023 #15387


Mouth Condition 20-03-2023 #15378


Mouth Condition 08-03-2023 #15339


Mouth Condition 21-02-2023 #15307


Mouth Condition 08-02-2023 #15272


Mouth Condition 17-01-2023 #15238


Mouth Condition 04-01-2023 #15210


Mouth Condition 19-12-2022 #15204


Mouth Condition 12-12-2022 #15169


Mouth Condition 14-11-2022 #15122


Mouth Condition 10-11-2022 #15121


Mouth Condition 02-11-2022 #15103


Mouth Condition 05-10-2022 #15061


Mouth Condition 19-09-2022 #15032


Mouth Condition 07-09-2022 #14993


Mouth Condition 24-08-2022 #14973


Mouth Condition 16-08-2022 #14944


Mouth Condition 11-08-2022 #14933


Mouth Condition 04-08-2022 #14922


Mouth Condition 27-07-2022 #14913


Mouth Condition 19-07-2022 #14895


Mouth Condition 13-07-2022 #14884


Mouth Condition 06-07-2022 #14863


Mouth Condition 29-06-2022 #14852


Mouth Condition 23-06-2022 #14818


Mouth Condition 14-06-2022 #14748


Mouth Condition 08-06-2022 #14735


Mouth Condition 06-06-2022 #14712




Mouth Condition 02-06-2022 #14706


Mouth Condition 25-05-2022 #14697


Mouth Condition 02-05-2022 #14636


Mouth Condition 20-04-2022 #14619


Mouth Condition 14-04-2022 #14595


Mouth Condition 31-03-2022 #14572


Mouth Condition 01-03-2022 #14517


Mouth Condition 09-02-2022 #14488


Mouth Condition 03-02-2022 #14476


Mouth Condition 19-01-2022 #14453


Mouth Condition 16-12-2021 #14416



Mouth Condition 02-12-2021 #14380


Mouth Condition 09-11-2021 #14340

Mouth Condition 28-04-2021 #14115




Mouth Condition 15-04-2021 #14071




Mouth Condition 30-03-2021 #14038




Mouth Condition 02-03-2021 #14000




Mouth Condition 11-02-2021 #13983




Mouth Condition 07-01-2021 #13926




Mouth Condition 09-12-2020 #13904




Mouth Condition 20-11-2020 #13848




Mouth Condition 22-10-2020 #13829




Mouth Condition 30-09-2020 #13801




Mouth Condition 01-09-2020 #13786





Mouth Condition 29-05-2020 #13715




Mouth Condition 06-05-2020 #13705




Mouth Condition 30-04-2020 #13691




Mouth Condition 15-04-2020 #13667




Mouth Condition 24-03-2020 #13668




Mouth Condition 17-02-2020 #13580




Mouth Condition 21-01-2020 #13527