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Freese and Nichols’ innovative underground detention project in the historic Central Arlington Heights neighborhood of Fort Worth is currently being advertised for construction. This project included the design of a custom detention system underneath a flood-prone residential street in the historic neighborhood. The area had previously been studied by Freese and Nichols to determine the extent of the existing flooding and to identify solutions to eliminate flooding in a 100-year storm. The previous studies identified that 100-year solutions are not affordable and partial solutions that...

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TagsFlooding, detention system,

The Still Creek Watershed in Bryan, Texas, had a habit of flooding in unexpected places. Some areas along the creek and its tributaries flooded on a regular basis. Other areas like the Lynndale Acres subdivision had a history of flooding outside of the Federal Emergency Management Agency floodplain. This area was identified by the City's Stormwater CIP Masterplan as the most severe flooding problem in Bryan due in part to storms in 2007 and 2009 that flooded over a dozen homes each occurrence. This area of Bryan also included numerous repetitive flood loss properties and a couple of severe...

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TagsTexas Water Development Board, Funding, Flooding,

When a Freese and Nichols Southeast Division team replaced the Jones Creek Spillway​, west of Houston, they designed and built it to withstand an extreme scenario. But they probably didn't expect such an event to happen so soon.

On May 11, four days after completion, the Spillway was tested by a storm just under the 100-year storm event: a flood that resulted in headwaters only one foot below the design elevation. The project passed the test, and the team was pleased to see it operate as intended. 

The design included installation of flood gauges on the upstream side of the...

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TagsFlooding, Innovation,

In a difficult economy, many clients question spending additional, already-tight project funding to design their stormwater management projects to accommodate a 100-year storm and/or flood, which has a low probability of occurring. However, this decision should be weighed heavily. Saving project capital now could put your community at a significant risk later.

They Happen More Often than You Think
It is commonly believed that 100-year storms and floods occur once every 100 years, but according to the U.S. Geological Survey (USGS), 100-year storms and floods...

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TagsFlooding, Stormwater Design,

Lack of Preparation Contributes to Effects
When municipalities are unprepared, large storm events often overwhelm them with the need to clean up debris, conduct inspections, perform repairs, respond to questions, and verify substantial damage determination regulation requirements are met. Nothing can immunize a community from flooding, but implementing key practices before, during and after large storm events can minimize effects on your community and help prevent severe damage and repeat flooding. (Brief checklists for practices before, during and after a large storm...

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TagsTips, Storm Event, HMAP, GIS, Flooding,

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