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Pyramids

Beach UNPATROLLED UNPATROLLED TODAY
Beach Number:
wa0777
State/Region:
WA Mandurah
Post Code:

Length:
0km
General Beach Hazard Rating:
5/10 (Highly hazardous)

Nearby Beaches:
florida (bay)  (0.7km) northport (1)  (0.7km) northport (2)  (0.9km) florida (s)  (1.2km) avalon  (1.5km)

Beach

Pyramids beach (WA 777) is a 1.4 km long beach that commences against the northern beachrock boundary of Florida beach and terminates at the 500 m long Dawesville Channel training wall. The channel is part of the large Port Bouvard and Dawesville development, which cut the 1 km long, 200 km wide channel to connect the Harvey Estuary with the Indian Ocean. The beach is backed by the Pleistocene calcarenite dunes rising to 40 m, which are now covered by the southern Southport part of the development. The beach commences immediately north of the reef with a low tide terrace and waves averaging just over 1 m. The waves pick up in height toward the channel and the northern half has a centre beachrock section with a boundary rip, then a 50 m wide bar cut by a central beach rip. In addition there is a strong permanent rip against the training wall, and a small spur groyne off the wall. The spur causes the beach to spiral round to face south against the wall. There is surf on the small reef break at the southern end and beach breaks along the bar. The groyne has been built to trap sand at the northern end of the beach. This sand is then periodically pumped under the channel to the northern side, to assist in the longshore sand transport. This will need to be an ongoing process otherwise the northern beaches will be deprived of sand and continue to erode. The beach is patrolled by the Port Bouvard Surf Life Saving Club, founded in 2004. As there are usually a few rips along this beach, particularly towards the northern end, make sure to swim only when patrolled and in the patrol area.The northern side of the Dawesville Channel has a shorter training wall, just 50 m in length, with a 150 m long groyne located 100 m to the north and a seawall linking the two walls and continuing for 500 m to the north. The training wall has been built to control or train the flow through the channel, while the groyne is designed to presumably stop sand moving southward and into the channel. The seawall is a result of the severe beach erosion that has occurred since the channel and walls were constructed. While sand is pumped under the channel from Pyramids beach, erosion is continuing on the northern side, as it is starved of the sand that would normally move northward along the coast. This sand is part of a beach system that extends northeast for 11 km to Robert Point at Mandurah, where the sand moves around the point and into the next long sediment cell. In between are 13 near continuous beaches (WA 778-790) most separated by low beachrock reefs and calcarenite outcrops. The first seven beaches are located along the 5 km of northeast-trending shore between the channel and Falcon.Between the northern wall and Falcon, 3 km to the north, are four beaches (WA 778-781). The first two have been heavily modified by the walls and groynes.

Location

Information Symbols

  • Other facilities Other facilities
  • Unspecified Unspecified

Regulation Symbols

    Shark Alert Number

    For shark sightings call Water Police on 9442 8600

    Supported by

    SLSA provides this information as a guide only. Surf conditions are variable and therefore this information should not be relied upon as a substitute for observation of local conditions and an understanding of your abilities in the surf. SLSA reminds you to always swim between the red and yellow flags and never swim at unpatrolled beaches. SLSA takes all care and responsibility for any translation but it cannot guarantee that all translations will be accurate.

     

    PATROL INFORMATION

    Patrol Information
      Mon 08/02 Tue 09/02 Wed 10/02 Thu 11/02 Fri 12/02 Sat 13/02 Sun 14/02
    Port Bouvard SLSC
    09:00
    -
    13:00

    STATISTICS

    July 2015 - June 2016

    Rescues:
    2
    First Aids:
    9
    Preventative Actions:
    29

    The following organisations contribute to the above totals: Port Bouvard SLSC

    Hazards

    Service Providers

    SLSA provides this information as a guide only. Surf conditions are variable and therefore this information should not be relied upon as a substitute for observation of local conditions and an understanding of your abilities in the surf. SLSA reminds you to always swim between the red and yellow flags and never swim at unpatrolled beaches. SLSA takes all care and responsibility for any translation but it cannot guarantee that all translations will be accurate.

    WEATHER

    Sat, 13 Feb 01:00 am

    MANDURAH (8 km)


    Cloud clearing.
    20.00 °C
    S/24 km/h
    Wind

    Weather information
    SatSunMonTueWedThu
    29° 19° 30° 18° 32° 19° 34° 21° 32° 22° 32° 20°

    WATER

    23

    Issued at Fri, 12 Feb 12:05

    SWELL FORECAST

    Saturday
    Sunday
    Monday
    Tuesday
    • AM
    • PM
    • AM
    • PM
    • AM
    • PM
    • AM
    • PM
    • SSE
      18 km/h
      1.7m
    • S
      20 km/h
      2m
    • SE
      23 km/h
      2.1m
    • SSE
      19 km/h
      1.9m
    • ESE
      25 km/h
      1.9m
    • SE
      19 km/h
      1.4m
    • E
      30 km/h
      1.3m
    • S
      23 km/h
      1.5m

    Mandurah issued at Fri, 12 Feb 21:54

    more
    Today's Swell Description
    Wind:
    Southerly 25 to 30 knots tending south to southeasterly 15 to 25 knots early in the morning then becoming southerly 25 to 30 knots in the early afternoon.
    Swell:
    Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
    Seas:
    2 to 3 metres.
    Weather:
    Cloud clearing.

    UV INDEX

    12



    more

    TODAY'S TIDE

    • Low
      05:52
      0.62m
    • High
      14:15
      0.88m

    more

    Perth (Barrack Street Jetty) issued at Sat, 13 Feb 00:00

    WARNINGS

    TODAY'S RADAR

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