Protecting Wildlife from Underwater Construction

The loud noises of construction are not just an issue for humans. Sound and pressure waves from underwater construction are a problem for water-dwellers, too. So engineers use bubble curtains around a construction site to help reduce the amount of sound that escapes. Water and air transmit sound very differently; in acoustic terms, they have very different impedance. You’ve probably experienced this yourself if you’ve ever compared the sounds of a swimming pool above and below the surface. Because some of a sound’s intensity gets lost in the water –> air –> water transition, a bubble curtain can halve the sound pressure transmitted from equipment. (Video and image credit: Practical Engineering)

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i have #civilengineering question about this #whitehouse stuff.

if they were going to tear this entire building down, why bother the shore up the part on the left?

The Forces on an Arch Dam

Although they’re iconic, arch dams like the Hoover Dam are relatively unusual. In this Practical Engineering video, Grady looks at the forces a dam needs to withstand and where and why an arch dam is useful. It’s a good reminder that even water that (for the most part) isn’t moving is still a challenge to deal with. (Video and image credit: Practical Engineering)

#civilEngineering #dams #fluidDynamics #hydrostatics #physics #science

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https://www.reddit.com/r/SideProject/comments/1o3fcv5/i_built_

Council’s Glynneath flood scheme wins top engineering award

Neath Port Talbot Council’s £3.6m Glynneath Flood Alleviation Scheme has won the Roy Edwards Award for Best Construction Project under £5m at the Institution of Civil Engineers (ICE) Cymru Awards.

The scheme, developed by the council’s drainage team with design partners Atkins Réalis and delivered by contractors Knights Brown, was praised for its innovative engineering and collaborative approach. It was funded through the Welsh Government’s Flood and Coastal Erosion Risk Management Programme.

Five years in the making

Work on the project began in 2019 and was completed earlier this year. Delivered in two phases, it included the construction of a reinforced concrete intake structure at Lancaster Close, designed to withstand a one‑in‑100‑year storm and protect homes and businesses around Rock Street, Robert Street and the town centre.

Engineers also installed a pressurised 900mm culvert system with additional upstream drainage to improve surface water management at Gelliceibryn. A further 900mm pipe was laid beneath a narrow footway and carriageway, while resurfaced roads and new concrete channels were added to improve runoff. At Glynmelyn Road, a new culvert and raised walls replaced a ford crossing, strengthening the area’s flood defences.

“Significantly reduced flood risk”

Cllr Scott Jones, Neath Port Talbot Council’s cabinet member for streetscene, said the award was a proud moment for the authority.

“These works have significantly reduced flood risk for residents and businesses and improved infrastructure resilience in the area,” he said. “The award is a testament to the ambition and passion for flood risk management held by our drainage team.

“This achievement highlights the importance of collaborative working, innovative engineering, and sustained investment in flood resilience.”

Welsh Government backing

Deputy First Minister Huw Irranca‑Davies, who has responsibility for climate change, said the scheme would deliver long‑term benefits to more than 270 properties.

“Our investment in this scheme, totalling over £3.6m, is yet another example of our commitment to address the challenges we face from climate change,” he said.

“In recent years, we have invested more than £300m to protect communities across Wales from increasingly unpredictable and extreme weather, with this year’s record funding rising to £77m.”

Recognition for local resilience

The award marks the culmination of five years of work to strengthen Glynneath’s flood defences. For residents, it represents not just an engineering achievement but greater peace of mind as the community faces increasingly severe weather events.

Related Articles

• Council’s two‑phase £3.5m Glynneath flood alleviation scheme completed
  Five years of work culminated in major new defences to protect homes and businesses in Glynneath from flooding.
• Mumbles coastal flood defence scheme officially opens
  A £26.5m project has delivered a new seawall, reinforced coastal protection and a widened promenade, reducing flood risk to 126 properties and boosting the local economy.
• Ammanford’s £6m flood risk management scheme officially opened
  Welsh Government‑funded works by Natural Resources Wales now protect more than 300 homes, businesses and key transport routes in the town.
• Report reveals flood defence investment needed to keep pace with climate change
  A new study warns that Wales must increase long‑term funding to meet the growing risks of extreme weather and rising sea levels.

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