Seqwater Flood Operations Centre

Un-gated Dam Outflow Report

Dam	OFSL	Current Level	Volume to OFSL	Outflow Status	Height above OFSL	Dam Outflow	Lake level trend	Receiving Watercourse
Atkinson Dam *	65.72	65.71	55	No Outflows	0.00	0	Steady	Buaraba Creek
Baroon Pocket Dam	217.00	216.52	1,817	No Outflows	0.00	0	Steady	Obi Obi Creek
Bill Gunn Dam *	110.00	109.95	51	No Outflows	0.00	0	Steady	Laidley Creek
Borumba Dam	135.01	135.04	0	Outflows occurring	0.03	4	Steady	Yabba Creek
Cedar Pocket Dam	101.07	101.11	0	Outflows occurring	0.04	0	Steady	Deep Creek
Clarendon Dam *	96.00	95.94	188	No Outflows	0.00	0	Steady	Lockyer Creek
Cooloolabin Dam	293.00	293.02	0	Outflows occurring	0.02	0	Steady	South Maroochy River
Enoggera Dam	74.40	74.35	34	No Outflows	0.00	0	Steady	Enoggera Creek
Ewen Maddock Dam	25.38	25.27	392	No Outflows	0.00		Steady	Mooloolah River
Gold Ck Dam	92.75	92.53	43	No Outflows	0.00	0	Steady	Gold Creek
Hinze Dam	94.50	94.06	6,494	No Outflows	0.00	0	Steady	Nerang River
Lake MacDonald Dam	93.00	93.44	0	Outflows occurring	0.44	0	Rising	Six Mile Creek
Lake Manchester Dam	50.90	50.90	0	Outflows occurring	0.00	0	Steady	Cabbage Tree Creek
Leslie Harrison Dam	15.24	15.25	0	Outflows occurring	0.01	0	Steady	Tingalpa Creek
Little Nerang Dam	168.02							Little Nerang Creek
Maroon Dam	207.14	207.14	0	Outflows occurring	0.00	0	Steady	Burnett Creek
Moogerah Dam	154.81	154.84	0	Outflows occurring	0.03	0	Steady	Reynolds Creek
Nindooinbah Dam	119.80	119.53	8	No Outflows	0.00	0	Steady	Albert River
Poona Dam	152.70	152.08	102	No Outflows	0.00	0	Steady	South Maroochy River
Sideling Ck Dam	20.37	20.33	134	No Outflows	0.00	0	Steady	Sideling Creek
Wappa Dam	44.81	45.00	0	Outflows occurring	0.19	9	Steady	South Maroochy River
Wyaralong Dam	63.60	63.60	0	Outflows occurring	0.00	0	Steady	Teviot Brook

Notes:

• All values are automatically generated and have not been checked. The values are indicative only and are not intended to be used for operational decision making.
• For GATED Dams, separate Situation Reports will be issued regularly to essential agencies when a Flood Event is declared in accordance with the Flood Mitigation Manual
• FSL represents the 'first overflow' level at un-gated dams
• All levels are in m AHD, unless stated otherwise
• 'Volume to FSL' is the airspace to FSL in ML
• 'Spilling' displayed when Current level is greater than or equal to FSL
• 'Height above spillway' is Current Level minus FSL
• Dam Outflow derived from Current Level, using Seqwater's adopted rating curves and reported to the nearest m³/s
• Dam Outflow assumes no debris blocking or obstructing the spillway flow. Obstructions are not common but are possible. If the spillway flow is obstructed the outflow will be less than information in the table above.
• Lake level trend represents a change since previous reading: Rising / falling / steady
• Maroon Dam 'Spilling' represents releases from the cone valves, not overflow from the spillway. No outflow data is available for cone valve releases.
• * Dam receives inflows via diversions from local water courses in addition to rainfall
• Receiving Watercourse is the watercourse impacted by the outflow of the dam
• Once spilling, dams highlight in different colours based on increasing levels of thresholds.
Spilling Downstream Release Hazard Additional Council notification Flood of Record Dam Safety

Report generated by Seq-FEWS on Wed 20/08/2025 16:15 using data available from Wed 20/08/2025 16:00