
The mail truck crash wasn’t Tuesday’s only accident with a difficult conclusion. The state police said a crash on the westbound side of the Beltway, a single-vehicle crash near New Hampshire Avenue, killed one person and injured three others.
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Those were just two of four serious crashes in Montgomery County between 2 a.m. and 4 a.m. Three of the incidents were close to being cleared by 7 a.m., and the slowdowns resolved themselves shortly thereafter, but the mail truck crash shut down all but one lane until about 10:30 a.m. The constriction caused a massive delay stretching from Tysons Corner in Virginia all the way past Connecticut Avenue, a distance of about 12 miles. While the lanes opened just after 10:30 a.m., the delay continued. 
Beyond the Inner Loop, the mail truck crash affected southbound traffic on I-270 all the way to its intersection with Route 28 in Rockville, Maryland.
Multiple serious incidents paralyze commuter routes
The early morning accidents continued in rapid fashion after the mail truck lost its load. At about 2:45 a.m., a truck carrying a load of potatoes heading north on I-270 near Clarksburg crashed, spilling fuel.
At about 3:30 a.m., a tractor-trailer crashed on southbound I-270 near Maryland Route 27, causing a fuel spill and some delays for drivers.
A single-vehicle crash on the Outer Loop of Capital Beltway near New Hampshire Ave. just after 3 a.m. killed one person and injured three others. The Maryland State Highway Administration reported the crash closed all lanes of the roadway, and others on the scene noted another crash among cars already stuck in the back-up.
Maryland State Police said the crash was the result of a single vehicle with four occupants losing control and hitting a wall. Drivers were at one point diverted from the Outer Loop at New Hampshire Avenue and re-joined the Capital Beltway at University Boulevard. By 6:30 a.m. all lanes were again open on the Outer Loop.
The wet weather is expected to continue through Tuesday afternoon.
Current conditions
Forecast
Tuesday: Cloudy and much cooler. Rainy in the morning. Showers ending late. Chance of rain: 80%. Wind: Northwest 5-15 mph. Highs: 74-79. Tuesday night: Showers end before midnight. Mostly cloudy. Comfortable by morning. Chance Of rain: 20%. Wind: Northwest 5-10 mph. Lows: 60- 68. Wednesday: Sun and clouds. Much less humid. Nice breeze. Chance Of rain: <20%. Wind: North 5-15 mph. Highs: 78- 84. Thursday: Sunny and beautiful. Low humidity. Light breeze. Chance Of rain: 0%. Wind: Northeast 5-10 mph. Highs: 80-86. Friday: Sunny and warmer. Low humidity. Chance Of rain: 0%. Wind: East 5-10 mph. Highs: 83-88.



