UPDATED: Tanker Truck Overturns, Dumping Gallons of Fuel into Area, Mystic River

UPDATED, 10:17 p.m.: Roads impacted by the rollover and fuel spill will be closed for the rest of the evening and into Saturday morning as the clean-up continues, according to a press release from the town.

"At this time, it is expected that roads from the intersections of River St. and Mystic Valley Parkway, Hamlet St. and Medford St., Summer St. and Mystic Valley Parkway, and Route 60 and the High St. Bridge will be closed to traffic throughout the night in an effort to reopen tomorrow morning."

The town also added that no one is in any danger from the spill. 

"At this time, the town wants to inform the public that the impacts of the incident do not pose a danger to the public. We ask the public to stay clear of the scene while emergency crews continue the clean up efforts. The town appreciates your patience and more information will be provided when available," according to the town's statement. 

UPDATED, 8:43 p.m.: Approximately 1,000 gallons of fuel leaked from the tanker after the crash, according to Massachusetts State Police. 

The truck that crashed is owned by JP Noonan Transportation of West Bridgewater. The driver was a 65-year-old Framingham man who is currently in serious condition at Beth Israel Hospital, said State Police. 

State Police have not filed charges at this point and are not releasing his name at this time. 

Many of the emergency personnel who responded to the scene from other communities to help with the clean-up have cleared the scene, but there are still members of the haz-mat team, firefighters and police at the scene. The roadway remains closed. 

UPDATED, 6:44 p.m.: Firefighters and haz-mat teams remain at the scene. They are on land and in boats on the Mystic River working on the hazardous material clean-up. The Department of Environmental Protection is also on scene.

The area is still closed to traffic. 

UPDATED, 6:24 p.m.: EkOngKar Singh Khalsa, director of the Mystic River Watershed Association, said fuel entered the Mystic River immediately after the crash.

A member of the Mystic River Watershed Association was kayaking near the bridge when the accident occurred, he said. She told Khalsa that fuel immediately started to discharge from the storm drain under the bridge “like water from a hydrant.”

Khalsa said he reached out to the Department of Environmental Protection, but they were already headed to the scene.

Khalsa said this incident is a “big deal for local residents and everyone who has worked so hard” to improve water quality in the river.

“We feel very badly for the driver’s injuries and no one intended this to happen, but this is really a big deal for the river. Unfortunately, the fuel oil has gone into the river,” said Khalsa. 

UPDATED, 5:49 p.m.: Police Chief Fred Ryan told Patch that the truck was coming from Medford over the bridge and into the rotary when the driver lost control, flipped his truck and was ejected from the vehicle.

The driver was rushed to Beth Israel Hospital. There is no word on his condition.

Ryan said the spillage has stopped from the vehicle. Haz-mat teams are on scene working to contain the spill.

Deputy Fire Chief Chip Ryan is incident commander at the scene. 

UPDATED, 5:35 p.m.: Here are some photos from SKYFOX of the crash scene. 

UPDATED, 5:21 p.m.: Some nearby homes and Winchester Savings Bank have been evacuated as a precaution. 

UPDATED, 5:17 p.m.: The Massachuetts State Police said "expect delays for several hours."

Check out our Commute page to find alternate routes. 

UPDATED, 5:06 p.m.: Massachusetts State Police is on scene to investigate crash. No word on the condition of the driver of the truck. 

The scene has been elevated to a Tier 2 haz-mat incident, which brings in more apparatus and a regional response team. The Department of Envrionmental Protection has also been requested to the scene. 

UPDATED, 5:03 p.m.: A number of apparatus from outside of Arlington are responding to the scene, including a Massport foam truck and a Cambridge marine unit. 

The Mystic River is close by so firefighters are trying to keep as much of the gasoline away from flowing into the river. 

Original post at 4:49 p.m.:

A tanker truck overturned and is spilling gasoline at Medford Street and Mystic Valley Parkway.

The reportedly 10,000-gallon truck crashed at about 4:30 p.m. Friday. A hazardous materials team has been called to the scene.

The area has been closed to traffic.

Check back with Patch for the latest on this accident.