Arcosa, Inc. 8-K

What Happened Arcosa, Inc. (ACA) reported on July 15, 2026 that on July 14, 2026 it received a section 107(a) order from the Mine Safety and Health Administration (MSHA) at its Stavola Bound Brook Quarry in Bridgewater, New Jersey. The order followed an incident during drilling when a section of material fell from the upper face of a highwall below a track drill, prompting withdrawal of the drill to evaluate highwall integrity. After inspection and consultation involving a third-party driller and blaster, Company personnel, and the MSHA inspector, the order was terminated and normal operations resumed. No injuries were reported.

Key Details

• Date of filing/notice: 8‑K filed July 15, 2026; incident and MSHA order occurred July 14, 2026.
• Location: Stavola Bound Brook Quarry, Bridgewater, New Jersey.
• Action taken: Track drill withdrawn for evaluation, then relocated; MSHA 107(a) order terminated after inspection/consultation.
• Safety outcome: No injuries reported.

Why It Matters This filing notifies investors of a regulatory safety action (MSHA section 107(a) order) that briefly halted part of quarry drilling operations. The order was terminated after on-site evaluation and the Company reported resumption of normal operations and no injuries. For investors, this indicates a short, resolved operational interruption tied to mine safety procedures rather than an ongoing shutdown or reported casualties.