Underground Infrastructure

Recent floods highlight climate risks to New England's aging infrastructure

The floods this week in Massachusetts that put a few dams at risk have raised concern the structures may increasingly be at risk as stronger and wetter storms hit the region.

Gas leak forces evacuation of Southern California homes; no injuries reported

A Southern California neighborhood was evacuated for more than six hours early Thursday due to a large leak of natural gas from an underground pipe, authorities said.

Biden restores states' and tribes' authority over waterways, including gas pipelines

The rule, which takes effect in November, reverses a Trump-era action that limited the ability of states and tribes to review pipelines, dams and other federally regulated projects within their borders.

South Dakota panel denies application for CO2 pipeline; Summit to refile for permit

South Dakota regulators on Monday rejected a permit application for a proposed carbon dioxide pipeline through the state, dealing a fresh setback to the company behind the multistate project after North Dakota refused a siting permit for another leg there.

AT&T fiber optic cable vandalism sparks investigation in Tuolumne County, Calif.

(UI) — The Tuolumne County Sheriff's Office is actively seeking assistance from the public regarding a recent act of vandalism that occurred on Aug. 30, resulting in a widespread disruption of cell service throughout Tuolumne County, California.

California utilities commission approve underground natural gas storage increase at site of nation’s largest methane leak

The California Public Utilities Commission voted 5-0 to permit underground storage of up to 68.6 billion cubic feet of gas at the vast Aliso Canyon field on the northern edge of Los Angeles County as a way to guard against fuel price spikes.

Arkansas lawmakers approve underground tunnel on State Capitol Grounds

(UI) — State legislators in Arkansas have granted their endorsement for the creation of an underground corridor linking the state Capitol with a nearby structure housing meeting spaces and legislative offices. The project, which surpasses $3.6 million in budget, has garnered increased backing in recent months.

PG&E initiates underground power line placement in Magalia, Calif.

(UI) — In Magalia, a significant transformation is underway as power lines are being placed underground. While the current cost of burying power lines is approximately $3.75 million per mile, PG&E anticipates a reduction to about $2.8 million per mile by 2026. The utility company asserts that despite the expense, the advantages of underground lines in high fire-risk areas are abundant.

Houston and San Antonio face sewer, water struggles amid central US deadly heat wave

Deadly heat has gripped Texas for much of the summer and has now spread into other parts of the central U.S., where it is expected to persist for days. Triple-digit temperatures are buckling roads, straining water systems, and posing a threat to the power grid of the nation’s energy capital.

Xcel Energy building underground barrier to contain radioactive water in Minnesota

The energy company responsible for leaking radioactive material from its nuclear plant in Monticello, Minnesota, in recent months has announced that it will build an underground metal barrier to keep affected groundwater away from the nearby Mississippi River.

Austin Energy underground powerline study granted approval in city council budget

(UI) — A significant portion—57%—of Austin Energy's power lines are already underground. However, the focus of this study is the remaining 5,000 miles of above-ground lines. The analysis aims to identify economically and environmentally viable areas for the transition.

Underground gas leak unlikely cause of fatal Pennsylvania house blast

It is unlikely that natural gas seeped from an abandoned underground mine and caused a house explosion in western Pennsylvania last weekend that killed six people, state officials said Friday.

Duke’s Root Control and UIS join forces to enhance underground service offerings

(UI) — Duke’s Root Control Inc. acquires Underground Infrastructure Services (UIS) of Livonia, Mich., significantly expanding its wastewater and gas inspection and remediation services, including inspection and replacement for water, gas, cable, and electrical utilities.

LUMA's $180 million underground transmission overhaul receives Puerto Rico’s approval

(UI) — LUMA's $180 million project proposal intends to repair and harden important underground transmission system components whose prospective breakdowns might jeopardize the system's dependability and resilience.

Caltech research reveals underground fiber optic cables as effective earthquake detectors

(UI) — In California, a network of underground fiber optic cables serves as a vital internet connectivity conduit. However, a Caltech study showed that these underground cables could function as earthquake sensors, detecting and quantifying seismic activity.

Joint project aims to enhance wastewater capacity, infrastructure in Ridgefield, Washington

(UI) — In a collaborative effort, the Port of Ridgefield, City of Ridgefield, and Clark Regional Wastewater District are teaming up for a joint project that aims to enhance wastewater capacity and infrastructure in Ridgefield, Washington.

PG&E gains ground on undergrounding 10,000 miles of power lines

(UI) — The largest project in the country to bury electricity lines underground is being carried out by Pacific Gas and Electric Company, and it is on target to finish this year. The utility intends to bury 10,000 miles of wires, and work on this project is progressing mile by mile and county by county.

Study reveals gaps in resilience planning for US stormwater sector

(UI) — In a recent study conducted by the Water Environment Federation (WEF), critical resilience gaps were found in the U.S. stormwater sector, highlighting challenges in adapting to climate change impacts and addressing aging infrastructure, funding shortages, and workforce needs.

Lynchburg, Va., plans $100 million tunnel project to conquer sewer overflow and CSO compliance

(UI) — The $100 million tunnel project is anticipated to be built using a tunnel boring machine. It will boast a completed diameter of approximately 12 feet, extend 4,700 feet in length, and rest 80 feet below ground.

Recent underground power line explosions in San Francisco raise concerns, safety assurances remain

(UI) — A San Francisco neighborhood has experienced significant problems as a result of an underground explosion and subsequent fire for at least the second time in less than three months.

PG&E plans to move power lines underground along Highway 89 in California

(UI) — In the upcoming months, the Plumas County power lines on Highway 89 between Moccasin and Indian Falls will be relocated underground by the Pacific Gas and Electric Company (PG&E).

Cities prioritize water main replacement, neglecting buried lead pipes

Around the country, utilities have been leaving lead pipe in the ground even when it is easiest to remove during water main work. Worse, they have been removing sections, disturbing the pipe and leaving the rest, which can spike lead levels, causing harm that will last a lifetime, an investigation by The Associated Press has found.

Wellington City Council adopts digital map for underground infrastructure management

(UI) — The Wellington Underground Asset Map, backed by a $4 million investment, aims to revolutionize the installation and maintenance of buried infrastructure, including telecommunications cables, gas pipes, and other vital services.

VINCI Construction and GRDF enhance underground utility mapping with Exodigo

(UI) — Through VINCI's innovation platform, Leonard, the two companies partnered to demonstrate the accuracy and potential of Exodigo's AI-based solution for identifying and mapping underground utilities, Exodigo identified 57% more utility lines than shown on existing records.

San Rafael secures PG&E funding for Canal Area underground utilities upgrade

(UI) — To facilitate the project's progression, the San Rafael City Council has unanimously approved the establishment of an underground utility district for the designated area. This strategic move enables the city to leverage funding provided by Pacific Gas & Electric Co.

Biden-Harris administration awards $930 million for middle-mile infrastructure

(UC) — The Department of Commerce’s National Telecommunications and Information Administration has announced over $930 million to expand middle mile high-speed Internet infrastructure across 35 states and Puerto Rico.

DOE makes progress on new ventilation shaft at US’ only underground nuclear repository

Ventilation at the Waste Isolation Pilot Plant has been an issue since 2014, when a radiation release contaminated parts of the underground facility and forced an expensive, nearly three-year closure.

Liberty VI continues fiber network construction work in St. Croix, St. Thomas

(UI) — The ongoing work will employ various underground technologies to mitigate roadway disruptions, such as utilizing a micro-trenching technique that minimizes pavement breakage and dust emission by producing a minimal cut and using existing ducts whenever feasible.

Despite challenges, HDD market continues impressive growth

(UI) — The 25th Annual Underground Infrastructure HDD Survey provides insight into the complex, yet generally lucrative, world of directional boring. Indeed, HDD is a technology that continues to expand to even further heights. It has clearly demonstrated how the introduction and development of this disruptive technology forever changed the face of utility and pipeline construction.

B&B Underground and Drilling tackles reclaimed water project

(UI) — While many HDD companies perform strictly small-diameter fiber work, those focused on larger water and sewer utility work are specialty companies. Building a team for the task can be more challenging, too. That’s why B&B Underground and Drilling emphasizes the importance of training.