自然危害

Natural hazards, like flooding and erosion from extreme rainfall or snowmelt, can be dangerous for people and cause damage to properties, infrastructure and nature. Conservation Halton provides a flood forecasting, management and operations program to reduce the risk of these natural hazards from having an impact on our community through prevention, prediction, protection and preparedness.

凯尔索大坝的结构和它后面的水库。

预防

哈尔顿保护局的许可和规划部门与我们的市政伙伴合作,支持安全和可持续发展的社区发展。保护当局法》第28条规定,保护当局可以为某些活动制定法规,这些活动会因为自然发生的过程(如洪水、侵蚀)而危及公众健康和安全,或者这些活动会造成自然危害或加重已经存在的自然危害。

预测

Conservation Halton is constantly monitoring weather and watershed conditions, in collaboration with other conservation authorities, the Ontario Ministry of Natural Resources, and Environment Canada. (Click here for real-time environmental monitoring of air temperature, water temperatures and precipitation amounts in the Conservation Halton watershed.) When flooding is forecasted, Conservation Halton issues flood messages to municipal emergency management, emergency medical response, school boards, police and media.

保护

哈尔顿保护组织运营和维护四个主要的防洪大坝(凯尔索、希尔顿瀑布、斯科特布洛克和芒茨伯格)和超过12公里的防洪渠道(穿过米尔顿的十六英里溪、奥克维尔的莫里斯-韦奇伍德分流和伯灵顿的哈格-兰博分流)。大坝的设计是为了控制洪水,并在低水位时期增加水流量。防洪渠的设计是为了输送,在某些情况下,将洪水从易受洪水影响的地区引开。

Preparedness

If a flood message is issued in your area, it is important to follow instructions of emergency response authorities. We would also recommend that you consider, in advance, what you can do to be prepared for flood emergencies. Halton Region has compiled information on what you can do before, during, and after a flood to protect yourself and your family, and Environment Canada also has information on what you can do before, during, and after a flood.

Flooding and erosion are two of the natural hazards of key concern in the Conservation Halton watershed. Flooding is what happens when the water levels of a creek, stream, river or lake cover the adjacent area of land, known as the floodplain. Erosion is a natural process that occurs during floods, or even when water levels rise but do not overflow, but an increased amount of erosion can weaken the stability of stream banks and other slopes.

These natural hazards can cause property damage, personal injury and loss of life, as well as impact the plants, animals and water quality in the area. As our communities continue to grow and expand, and as climate change continues to increase the frequency and severity of storm events, flood control in the Conservation Halton watershed is more important than ever.

哈尔顿保护组织运营和维护着四个主要的防洪大坝,这些大坝是为直接应对哈泽尔飓风(1954年10月)的破坏而建造的。这些设施大多建于20世纪60年代和70年代。从那时起,洪水管理已经从昂贵的工程结构,如大坝和渠道,转向更多的被动方法,包括土地收购和开发监管。

凯尔索大坝

Kelso Dam was the first flood control dam constructed within the jurisdiction and was built in 1962. It operates in conjunction with the Hilton Falls Dam and Reservoir. It is operated to provide flood protection to downstream areas within the Town of Milton during spring melt, as well as rainfall and snowmelt events. Kelso Dam provides low flow augmentation in summer months to support aquatic habitat in the downstream Sixteen Mile Creek. It also allows visitors to Kelso to enjoy recreational opportunities like swimming and non-motorized boating.

希尔顿瀑布大坝

The Hilton Falls Dam and Reservoir was constructed in 1974. It operates in conjunction with the Kelso Reservoir to provide flood protection to downstream areas within the Town of Milton during spring melt, as well as rainfall and snowmelt events.. Hilton Falls is also used to augment flows into the Kelso reservoir during drier summer months by storing upstream runoff during the spring and releasing it at a pre-determined rate. The level of flood protection during winter months is quite high because when holding levels are lower, but the level of flood protection is reduced during summer, due to higher reservoir levels, which reduce available active flood storage.

Mountsberg大坝

The Mountsberg Dam and Reservoir was constructed in 1967. It is operated to provide flood protection to downstream areas within Lawson Trailer Park and the Town of Carlisle during spring melt, as well as rainfall and snowmelt events. Mountsberg is also used to augment low flows in downstream Mountsberg Creek and the Bronte Creek system during drier summer months by storing upstream runoff during the spring and releasing at a pre-determined rate. The reservoir also provides recreational opportunities, like fishing and non-motorized boating.

Scotch Block Dam

The Scotch Block Dam and Reservoir was constructed in 1972. It is operated to provide flood protection to downstream areas within the villages of Mansewood and Hornby during spring melt, as well as rainfall and snowmelt events. Scotch Block is also used to augment flows in Middle Sixteen Mile Creek during drier summer months by storing upstream runoff during the spring and releasing at a pre-determined rate. The level of flood protection during winter months is quite high because when holding levels are lower, but the level of flood protection is reduced during summer, due to higher reservoir levels, which reduce available active flood storage.

哈尔顿保护组织经营和维护三条防洪渠。这些渠道建于20世纪60年代末和70年代,目的是将水尽可能快地通过我们的社区并进入安大略湖。从那时起,我们设计社区的方式已经改变。今天,我们的社区包括暴雨池和小溪自然流动的空间,这样,多余的水可以储存起来,并在雨后长期释放。

哈格-兰博

Hager-Rambo防洪渠于1976年建成,长度近4公里。它的目的是缓解伯灵顿市内住宅区的局部洪水。Hager-Rambo将Hager和Rambo小溪上游的水流分流到印第安小溪,然后排入安大略湖。

米尔顿

米尔顿防洪渠分五期建设,最后一期是在1979年。它的长度为3公里,将十六英里溪的洪水安全地输送到米尔顿镇的历史中心区。

莫里斯-韦奇伍德

Morrison-Wedgewood渠道是由Conservation Halton于1967年在Oakville镇建造的第一条防洪渠道。它在1969年被增加。这条渠道长4公里多,将伊丽莎白女王路以北的住宅区的水分流到16英里溪,并远离QEW以南的住宅区。

减少社区内洪水破坏的影响的第一步是绘制地图,帮助我们准确地识别洪水危险。哈尔顿保护组织正在与我们的合作伙伴合作,通过更新洪泛区地图来减少我们社区的洪水风险,其中有些地图已经超过20年了。更新技术研究和建模,使用新的工具和技术,帮助我们更好地了解洪水灾害的范围。随着制图审查和更新的进展,有必要对近似管制区的制图进行完善,因为可能会发现更多的危险或管制区,有些可能会被删除。

你如何参与?

哈尔顿保护组织鼓励公众参与洪灾测绘研究。公众的参与为洪泛区测绘计划提供了更大的确定性和透明度,并从经历过这些流域条件的人那里得到关于流域的观察结果,从而受益。

我们举办洪泛区测绘研究的公众参与会议,通知公众和利益相关者,他们所在的地区正在进行一项研究,并分享有关研究过程和测绘更新草案的信息,供其审查和投入。洪泛区测绘研究的通知和公众参与的更新会在社区报纸上公布,并在保护哈尔顿网站和社交媒体上发布。你也可以要求加入研究的电子邮件联系名单,直接接收通知。

Hurricane Hazel in 1954, and the catastrophic flooding that it caused, was the driving force for the creation of conservation authorities in Ontario. Within the province, 81 people lost their lives and 4,000 families were displaced from their homes. Following the destruction and devastation of Hurricane Hazel, regulations and policies to prevent home construction and other development in ravines and floodplains were implemented to protect us from similar tragedy.


Conservation Halton Flood Messages