Tag: flood management

The most effective way of reducing the risk to people and property is through the production of flood risk maps. Most countries have produced maps which show areas prone to flooding based on flood data. In the UK, the Environment Agency has produced maps which show areas at risk. The map to the right shows a flood map for the City of York, including the flood plain for a 1 in 100 year flood (dark blue), the predicted flood plain for a 1 in 1000 year flood (light blue) and low lying areas in need of flood defence (purple). The most sustainable way of reducing risk is to prevent further development in flood prone areas and old waterways. It is important for at-risk communities to develop a comprehensive Floodplain Management plan. Communities that participate in the National Flood Insurance Program must agree to regulate development in flood prone areas.

Flood Best Practices: Protecting People & Property with GIS

Flood Best Practices: Protecting People & Property with GIS

At some point, all communities face possible devastation from rising flood waters. And on the front line of the flood response effort are civil engineers inspecting and monitoring flood control systems in order to protect community lives and property. But…at what risk?

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Fluvial Geomorphology (for Those Who Skipped It in College)

Fluvial Geomorphology (for Those Who Skipped It in College)

Whether you’re working on a water resources project, stream restoration, bank stabilization, or simply are looking to brush up on the fluvial geomorphology basics…you’re in luck. We’re diving beyond the surface of fluvial geomorphology and into the depths to catch you up with the latest theories, approaches, and tools.

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Reader Profile: Dusty Williams

Reader Profile: Dusty Williams

It is said that all politics is local, but Dusty Williams knows that it sometimes calls for taking a seat at national tables where trickle-down decisions are made. He’s done just that. Williams is general manager and chief engineer of the Riverside (California) County Flood Control and Water Conservation District,

Milwaukee Goes Green and Grey for Stormwater Management

Milwaukee Goes Green and Grey for Stormwater Management

Milwaukee, WI, uses both green and grey infrastructure to cope with stormwater runoff volume and pollution. The approaches complement each other, especially when green infrastructure is designed on a watershed basis. A major component of Milwaukee’s green infrastructure is its Conservation Easement Program. This program started under Metropolitan Milwaukee Sewerage

The Real Dirt on the Jersey Shore

The Real Dirt on the Jersey Shore

Proprietors of summer rentals converge on city offices, seeking redress as scourges of jellyfish drift towards the beach, frightening vacationers from seaside resorts. Watermen stand by helplessly, witnessing a shocking decline in their catches in areas that, until recently, were teeming with shellfish. Homeowners recoil at the prospect of venturing

A Pocket Full of Stormwater

A Pocket Full of Stormwater

Turning his attention to municipal watershed ecology, a leading aquatic ecologist and urban geographer says that in a healthy natural ecosystem every resource gets recycled in perpetuity, through every level of the food chain, from the bottom to the top and back again. And, he says, sustainable cities would function

Open Channelization of a Roadway Culvert System

Anthropogenic land-use changes to riparian wetlands in urban settings result in scale-specific animal responses (Mensing et al. 1998; Nerbonne and Vondracek 2001). This includes disturbances to natural streambeds and engineered stormwater structures (e.g., culverts and open channels) intended to divert or change water flow velocity with the construction of roadways

Conservation Easements and Wetland Ordinances

Conservation Easements and Wetland Ordinances

Wetlands need all the protection they can get, and conservation easements and wetland ordinances are two good ways to protect them. Ordinances are laws adopted by municipalities and counties to cover matters that aren’t already covered by state or federal laws. They specify the way or ways land may be

Cataloging California’s River Levee System

Take an aging system of river levees and other flood control structures in the heart of one of the nation’s most agriculturally rich states. Consider that the river system providing irrigation to those essential farmlands also supplies drinking water to 23 million residents. Then add a fast-growing population with an

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