MasTec Services Company, Inc.

An employee was walking on uneven, rocky ground alongside a shallow trench less than 3 feet deep while installing electric utility conductors. The employee fell into the trench and landed on his left foot, resulting in a hairline fracture of the lower left leg that required hospitalization and surgery.

An employee was helping a machine operator load a personnel bucket onto a trailer when the employee was struck by the boom of a rear-easement backyard digger-derrick machine. The employee suffered fractures to the ribs, hips, and right femur.

An employee was cleaning an underground electrical vault. The employee was shocked, fell from the stepladder, and was injured. The employee's left hand was amputated due to the electric shock.

An employee was attempting to remove a drive gear from beneath equipment. The employee was operating a pneumatic drill with his left hand while bracing himself with his right hand on the drive gear. The torque of the drill caused the gear to shift and catch the distal phalange of his right pinky finger, resulting in a partial amputation.

An employee was rewiring a power line pole when the back of his right hand touched the 7,200-volt tap line. He suffered second-degree burns to his right hand and an exit wound on the left side of his torso.

A crew was working near an electrical pole. A co-worker was using a front-loader to grade a slope when the loader slid into a guy-wire and became tangled and stuck. The injured employee used a handheld grinder to cut the wire a few feet from the ground. The lower part of the wire fell to the ground, but the upper part of the wire fell toward the pole and contacted an energized part before the end landed in nearby bushes. The employee attempted to shake the bush to free the wire so it could fall back toward the pole. The wire popped up and contacted his hands, resulting in electrical entry burns to both hands and exit burns on both feet.

On November 18, 2023, two employees were using a 2x4 to lift a power line. The boom lift they were operating made contact with power lines and both employees sustained electrical shock injuries.

An employee was part of a crew that was servicing a power line. The employee was in a bucket truck when he contacted the 7,200-volt power line. The electricity entered through one hand and exited the other, causing several electrical burns. The employee was not wearing proper personal protective equipment at the time.

An employee was helping a crew set up a 45-foot pole between two other poles. It was being set up between two energized lines and the pole made contact with the A-phase. The employee was electrocuted and lost consciousness. The electricity also caused an entry wound in their left forearm and an exit wound in their left foot.

An employee was handling a 45-foot long rebar for installation on the third floor of a building at a 30-foot elevation. The rebar came into close proximity of a powerline situated 13 feet off the building. The employee sustained electrical burns to his hands from electric discharge, requiring hospitalization.

An employee was moving a tensile strength test device with a dolly. The device fell from the dolly onto the employee's right leg, causing a compound fracture.

An employee fell while stepping off the tailgate of a pickup truck. The employee landed on the ground and suffered a broken left fibula and tibia.

On October 7, 2025, employees were conducting trenching operations for the installation of a new sewer line system. The excavator's bucket was detached and put inside the trench as it was being exchanged for a different-sized bucket. An employee entered the trench with a shovel to move some dirt located at the front end of the pipe. The excavator bucket shifted and slid, striking the employee s right foot and trapping it against the ground. The employee sustained a fractured right tibia.

Employees were working to dislodge a large truck that was stuck in a rut using tow straps and a front-end loader with the bucket removed. An employee connected the straps to the loader and truck and another employee slowly engaged the loader to close the coupler. The injured employee's arm became caught in a pinch point. The employee was hospitalized with a fractured arm.

An employee was lifting a piece of 30-inch line stopping equipment using a jack screw. A lifting eye weld snapped and the load dropped. The end of the jack screw then landed on the employee's heel and crushed it. The employee was hospitalized.

An employee was helping to lift the grating from a floor draining system when the grating slipped and landed on his hand, resulting in the amputation of his right middle finger at the first joint.

A casting machine jammed. An employee's hand was caught in the machine, where a belt line caught and amputated the tip of his finger.

During a workshop meeting in a hotel, an employee heard a drilling noise, so he walked outside to see what it was. An explosion occurred (possible gas line) and his face, ear, and hair were burned. He also fell and sustained a pelvic fracture.

An employee slipped on condensation on a walkway in a parking garage. She fell and suffered a closed fracture to the neck of the left femur.

An employee was using a tool to remove a rag from a roll on the tube mill. The roll pulled the tool and the employee's right hand into the roll, resulting in a partial amputation of the little finger and a fracture to the index finger.