TVA service area and power generation assets.  Tennessee Valley Authority (TVA) | GAO-23-105375

GAO report concludes TVA is flat-footed on climate-change risks to infrastructure

This story was originally published by Tennessee Lookout.

WASHINGTON — Extreme weather patterns have sparked several improvements to the climate resiliency of Tennessee Valley Authority electrical infrastructure over the past two decades. 

A report from a government watchdog, however, found the huge utility still has work to do in mitigating climate hazards to the regional power grid. (Bitter cold around Christmas led TVA to implement rolling blackouts).

“TVA has taken several steps to manage climate-related risks,” the Jan. 30 report from the Government Accountability Office said. “However, TVA has not conducted an inventory of assets and operations vulnerable to climate change, or developed a resilience plan that identifies and prioritizes resilience measures to address specific risks.” 

One issue: The Southeast has experienced a period of accelerated warming since the 1960s. Among cities in the region, 61 percent are experiencing worsening heat waves, a percentage greater than anywhere else in the country, according to the GAO. 

The report came in response to a five-part joint request for information on the climate resiliency of U.S. infrastructure, from U.S. Senate Energy and Natural Resources Committee Chair Joe Manchin III of West Virginia and Environment and Public Works Committee Chair Tom Carper of Delaware. The two Democrats sent their request to the GAO on May 13, 2019. 

This map shows several of the various options that were proposed over the years for a new power line to the Horizon Center. Options numbered 1 here would have severely impacted the North Boundary Greenway. Options 1 and 2 also would have diminished the ecologic values of the Black Oak Ridge Conservation Easement. The now authorized option 5 will tap into the existing 161 kilovolt TVA power line at a new substation to be built on the south-east side of Oak Ridge Turnpike (TN-95).  City of Oak Ridge Electric Department

Conversations, letters, alliances and action prompted electrifying win for East Tennessee citizens

OAK RIDGE — After a grassroots citizen effort highlighted the fact new electric lines would mar habitat and popular hiking trails, the city plans to put them elsewhere.

The move came after objections raised by East Tennessee environmental groups, previously reported by Hellbender Press, to protect the land along the North Boundary Greenway, a wide gravel path used by hikers and cyclists. The new route goes down Novus Drive’s median, starting south of State Route 95.

Contractors aren’t done building the Novus Drive route, but city staff made the new route clear in December when asking for funding. Oak Ridge City manager Mark Watson stated the new lines and substation need to be ready for the proposed TRISO-X nuclear fuel facility by December 2024.

The Pryor Brown Transfer Company and garage is shown in 1936 on West Church Avenue in downtown Knoxville. Established in 1929, it is reputedly the first full-service parking garage in the U.S., and now faces demolition after years of neglect and disuse.  Thompson Photograph Collection, McClung Historical Collection

Wasted space or community asset? As urban space dwindles, debate gears up over utility of parking garages

This story was originally published by The Conversation. Kevin J. Krizek is professor of environmental design at University of Colorado Boulder. John Hersey is a teaching assistant professor of environmental design at University of Colorado Boulder.

For the past century, the public and private sectors appear to have agreed on one thing: the more parking, the better.

As a result, cities were built up in ways that devoted valuable space to storing cars, did little to accommodate people who don’t own cars and forced developers to build expensive parking structures that increased the cost of living.

Two assumptions undergird urban parking policy: Without convenient parking, car owners would be reluctant to patronize businesses; and absent a dedicated parking spot for their vehicle, they’d be less likely to rent and buy homes. Because parcels of urban land are usually small and pricey, developers will build multistory garages. And so today, a glut of these bulky concrete boxes clutter America’s densely populated cities.

We have been studying urban development and parking for decades. The car’s grip over city planning has been difficult to dislodge, despite a host of costs to the environment and to the quality of life for many city dwellers.

Potential water runoff issues stall future Oak Ridge landfill construction

OAK RIDGE — A landfill intended to hold potentially toxic debris from the demolition of legacy Oak Ridge research facilities is moving forward but construction won’t start until it is definitively determined whether the site could pollute ground and surface water.

As reported previously by Hellbenderpress, environmentalists fear toxins leaking out of the proposed landfill could contaminate waterways and make their way into fish that people might catch downstream. The landfill’s contractor, however, said leaving buildings full of toxic residue standing may be more dangerous for workers and nearby residents and the landfill will help get the buildings quickly demolished. The contractor is doing a mock-up study this year to see how best to handle water issues on the future landfill site.

This summer, the contractor United Cleanup Oak Ridge LLC will choose a subcontractor and do field work. Ben Williams, the Department of Energy’s public affairs specialist, said roads and utilities will need to move to get the site ready at that time. But UCOR stated it won’t build the landfill until after a water study spanning “two wet seasons,” beginning later this year. 

During winter migration, visitors to Hiwassee Wildlife Refuge can view thousands of greater sandhill cranes.  Tennessee Wildlife Resources Agency via Appalachian Voices

Beyond festivals, sandhill cranes pass through Southeast in increasing numbers

BIRCHWOOD — Every year in mid-January, a few thousand people gather here for The Sandhill Crane Festival because the cranes have returned. The community center at Birchwood is filled with vendors selling wildlife art or promoting conservation. The nearby Cherokee Removal Memorial at Blythe Ferry offers a chance to celebrate Cherokee culture and learn the story of indigenous people who were taken from their homes and sent on a long journey to Oklahoma.

Meanwhile, there are opportunities to see and appreciate these amazing birds through February in East Tennessee and beyond.

At least 20,000 cranes gather or pass through Hiwassee Wildlife Refuge, having come from their nesting grounds in southern Canada and the upper Midwest to winter here in the American South. Many spend the winter there, but some will continue southward to Okefenokee Swamp in Georgia and the Gulf Coast.