What Happened
A fire at a mulch storage yard on Suffolk Avenue in Brentwood sent shockwaves across the Long Island Rail Road’s Ronkonkoma Branch on Tuesday morning, July 14, 2026, triggering mass cancellations and delays in both directions during the height of the morning commute, according to Newsday.
The blaze was reported at 5:38 a.m. The storage yard is located directly adjacent to the LIRR’s Ronkonkoma Branch tracks, and the Metropolitan Transportation Authority said the proximity of the fire immediately threatened rail operations across a significant stretch of the line. Authorities closed Suffolk Avenue to all traffic between Fulton and Bergen streets as firefighters worked to contain the fire.
Train service between Ronkonkoma and Wyandanch was initially suspended entirely, Newsday reported. Fire officials later agreed to allow trains to pass through the affected area at a reduced speed — a slowdown rather than a complete shutdown — enabling some level of service to resume in both directions. Even with that accommodation, the LIRR confirmed that multiple westbound trains were canceled outright, while other eastbound and westbound trains faced delays throughout the morning.
The scale of the fire was significant. Fire officials said some burning mulch piles at the yard were stacked approximately 50 feet high. To combat the blaze, firefighters deployed an excavator on site to physically knock down the towering piles, ensuring water could reach the burning material inside. The fire produced a visible smoke condition across the surrounding Brentwood area.
Firefighters from at least eight Suffolk County departments responded to the scene: Brentwood, East Brentwood, Dix Hills, Islip, East Islip, Central Islip, Islip Terrace, and Hauppauge. Ambulance crews from both Brentwood and Central Islip also responded. Despite the severity of the fire and the number of resources deployed, fire officials told Newsday there were no reports of injuries.
Location & Road Context
The mulch storage yard sits on Suffolk Avenue in Brentwood, a central Suffolk County hamlet that sits along the LIRR Ronkonkoma Branch corridor between Wyandanch and Central Islip stations. The yard’s position directly adjacent to the tracks is what made this a rail disruption event, not just a local fire. Suffolk Avenue between Fulton and Bergen streets remained closed to vehicular traffic as of the morning of July 14. Commuters traveling through Brentwood by car were advised to seek alternate routes while the road closure was in effect.
The Ronkonkoma Branch is one of the LIRR’s busiest lines, carrying tens of thousands of commuters daily between Penn Station and Ronkonkoma. A disruption between Ronkonkoma and Wyandanch — even reduced to a slowdown — ripples across the entire line, compounding delays for riders from the East End all the way into Manhattan.
Broader Impact
Because the mulch storage yard’s burning piles reached heights of up to 50 feet and firefighters required an excavator to break them apart, the fire response was resource-intensive enough to draw crews from eight separate departments across a wide swath of central Suffolk County — an operational footprint that reflects the unique hazard of large commercial mulch fires, which can smolder and reignite deep within a pile long after surface flames are extinguished. Riders affected by LIRR Ronkonkoma Branch disruptions should monitor MTA service alerts for restoration updates as the fire investigation continues.