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MCMC Merriman Creek, Mouth Observation Site

Active Mouth Condition Seaspray (Boat Ramp)

Merriman Creek flows out into the surf beach. Due to the intensity of the wave action, the creek can be 'pushed' via longshore drift further up along the beach due to the intensity of the wave action. This can then threaten built assets such as the ramp access onto the beach from the surf beach and beach access boardwalks. 

The site is popular with fishermen, kayakers and surfers a like. There has been concerns in the past of flooding, and some anecdotal evidence of concerned residents 'opening' the estuary themselves. Currently there is a height gauge and the site has active telemetry of stream height organised by the Wellington Shire. 


See photo attached - this site is located at the point of the foredune where the creek meets the beach. This provides some height in order to capture how the estuary mouth is moving over time. This estuary is strongly wave dominated

Land Use

  • Recreational
  • Rural Grazing
  • Urban Residential

Estuary Mouth Condition

Date Mouth state Berm length Conditions Water Level Start
Water Level End
High Tide
Low Tide
02-06-2025 Open
Flow: In
N/A Gentle breeze NW
3 Smooth
0.4m 13:00pm
 
1.0m 16:12pm
0.5m 09:32am
30-05-2025 Closed 35.0 Gentle breeze NW
4 Slight
1.9m 12:00pm
 
 
 
15-05-2025 Closed 40.0 Light Breeze W
4 Slight
1.5m 11:30am
 
0.9m 11:54am
0.5m 06:01am
15-04-2025 Closed 35.0 Fresh breeze E
4 Slight
1.5m 13:00pm
 
 
 
25-03-2025 Closed 50.0 Light Air S
4 Slight
1.4m 10:00am
 
 
 
26-02-2025 Closed 35.0 Light Breeze E
4 Slight
1.5m 13:00pm
 
 
 
17-12-2024 Closed N/A Moderate breeze SW
5 Moderate
1.5m 15:00pm
 
 
 
22-10-2024 Open
Flow: Out
N/A Light Breeze NW
4 Slight
0.7m 14:00pm
 
1.1m 14:37pm
0.7m 08:04am
03-10-2024 Open
Flow: Out
N/A Light Breeze E
4 Slight
0.5m 17:00pm
 
1.0m 22:19pm
0.5m 16:18pm
03-09-2024 Closed 40.0 Gentle breeze W
5 Moderate
2.1m 15:30pm
 
1.0m 09:54am
0.6m 15:44pm
29-08-2024 Closed 30.0 Gentle breeze W
1.8m 11:00am
 
0.9m 07:05am
0.7m 11:41am
13-08-2024 Closed
Flow: In
20.0 Light Breeze N
4 Slight
0.6m 10:40am
 
1.1m 15:36pm
0.7m 09:36am
19-07-2024 Open
Flow: Out
N/A Moderate breeze NW
5 Moderate
0.7m 12:06pm
 
1.3m 20:11pm
0.5m 02:21am
17-07-2024 Closed 35.0 Light Breeze NW
4 Slight
2.0m 10:00am
 
0.9m 06:57am
0.7m 11:51am
02-05-2024 Closed 25.0 Light Breeze NE
4 Slight
1.4m 11:00am
 
1.0m 17:43pm
0.4m 11:16am
27-03-2024 Closed 40.0 Gentle breeze SW
4 Slight
1.4m 13:30pm
 
1.0m 11:59am
0.5m 17:51pm
15-01-2024 Open
Flow: Out
N/A Strong breeze E
5 Moderate
 
 
0.5m 07:26am
1.2m 13:45pm
10-01-2024 Open
Flow: Out
N/A Light Breeze NW
5 Moderate
 
 
1.2m 09:53am
0.2m 16:45pm
05-12-2023 Open
Flow: Out
N/A Light Breeze NW
4 Slight
0.7m 09:00am
0.6m 11:00am
1.0m 16:13pm
0.8m 10:35am
20-11-2023 Open
Flow: Out
N/A Light Breeze SE
4 Slight
0.6m 10:00am
 
1.1m 16:03pm
0.7m 09:48am
11-10-2023 Open
Flow: Out
N/A Light Breeze W
4 Slight
0.5m 08:00am
 
0.9m 08:45am
0.4m 03:00am
13-09-2023 Open
Flow: Out
N/A Gentle breeze SW
4 Slight
0.6m 11:00am
 
1.0m 09:52am
0.5m 15:46pm
27-07-2023 Open
Flow: Out
N/A Light Breeze N
4 Slight
0.5m 09:00am
 
1.1m 15:57pm
0.6m 09:42am
27-06-2023 Closed 30.0 Gentle breeze W
4 Slight
1.1m 11:15am
1.1m 12:15pm
1.1m 16:54pm
0.6m 10:52am
14-06-2023 Open
Flow: Out
N/A Fresh breeze W
5 Moderate
0.7m 14:20pm
 
1.2m 19:43pm
0.6m 12:40pm
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Snapshots

02-06-2025
30-05-2025
15-05-2025
15-04-2025
25-03-2025
26-02-2025
17-12-2024
22-10-2024
03-10-2024
03-09-2024
29-08-2024
13-08-2024
17-07-2024
02-05-2024
27-03-2024
15-01-2024
10-01-2024
05-12-2023
20-11-2023
11-10-2023
13-09-2023
27-07-2023
27-06-2023
14-06-2023

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