Manning River

Manning River (Boolumbahtee)
Open/trained mature wave dominated barrier estuary
Manning River, upstream of Mount George
Name origin: In honour of Sir William Manning
Country	Australia
State	New South Wales
Regions	New England Tablelands, NSW North Coast (IBRA), Northern Tablelands, Mid North Coast
Local government area	Mid-Coast Council, Greater Taree, Mid-Coast Council
Tributaries
- left	Backwater Creek, Pigna Barney River, Barnard River, Nowendoc River, Connollys Creek, Bobin Creek, Dingo Creek, Cedar Party Creek, Dawson River, Lansdowne River
- right	Gloucester River, Bakers Creek (New South Wales), Burrell Creek (New South Wales), Scotts Creek (New South Wales)
Towns	Wingham, Taree
Source	Mount Barrington, Great Dividing Range
- location	Barrington Tops National Park, near Ellerston
- elevation	1,500 m (4,921 ft)
- coordinates	31°54′S 151°28′E / 31.900°S 151.467°E / -31.900; 151.467
Mouth	Tasman Sea of the South Pacific Ocean
- location	Old Bar and Harrington Point
- elevation	0 m (0 ft)
- coordinates	31°53′S 152°42′E / 31.883°S 152.700°E / -31.883; 152.700Coordinates: 31°53′S 152°42′E / 31.883°S 152.700°E / -31.883; 152.700
Length	261 km (162 mi)
Depth	3 m (10 ft)
Volume	96,259 m3 (3,399,355 cu ft)
Basin	8,125 km2 (3,137 sq mi)
Area	35 km2 (14 sq mi)
National parks	Barrington Tops, Woko,
Nature reserve	Bretti
Reservoir	Bootawa Dam
River islands	Mitchells Island, Oxley Island
Website: NSW Environment & Heritage webpage

Manning River (Aboriginal: Boolumbahtee), an open and trained mature wave dominated barrier estuary, is located in the Northern Tablelands and Mid North Coast districts of New South Wales, Australia.

Manning River rises below Mount Barrington, on the northeastern slopes of the Great Dividing Range within Barrington Tops National Park, east southeast of Ellerston, and flows generally southeast, joined by eleven tributaries including the Pigna Barney, Barnard, Nowendoc, Gloucester, Dawson, and Lansdowne rivers, descending 1,500 metres (4,900 ft) over its 261 kilometres (162 mi) course from the high upper reaches, through the Manning Valley, and out to sea.

The river flows past the towns of Wingham and Taree. At Taree, the river splits and becomes a double delta. The southern arm reaches its mouth at the Tasman Sea of the South Pacific Ocean, near Old Bar. The northern arm is joined by the Dawson River and further downstream the Lansdowne River, reaching its mouth at the Tasman Sea, near Harrington Point; creating two separate entrances to the river: Harrington Inlet (north) and Farquhar Inlet (south). Within the delta there are several channels dividing coastal land into large islands, such as Mitchells and Oxley islands. Between Croki (in the north) and east of Bohnock (in the south), Scotts Creek links both the northern and southern passages of the river.