Predictive Safety Analysis’ provides county leadership with data-driven strategies to advance its Vision Zero goal of eliminating traffic-related deaths and severe injuries by 2030

The Montgomery County Planning Department briefed the Montgomery Planning Board on Thursday, July 21 at their meeting on the findings of a transportation safety study, the Predictive Safety Analysis, that uses data to estimate the number of crashes at all roadway segments and intersections in the county. The analysis will help county decisionmakers make targeted changes to the roadway network to advance the county’s goal to eliminate traffic-related deaths and severe injuries by 2030.


The Maryland State Highway Administration has announced that all travel lanes are now open on southbound I-270, following over two weeks of repairs for a sinkhole that was caused by a failed corrugated drainage pipe in the right lane of I-270 southbound, prior to Exit 9 (I-370).

Per MDSHA last week: “Major pipe failure looked small on surface of SB I-270, but it was only the tip of the iceberg. Damage underneath was not visible to drivers but is 20 ft wide, 15 ft long & 12 ft deep. Crews are installing new 80-ft pipe w/a focus on your safety.”


In addition to a full-color traffic signal, the nearly $200,000 project includes a marked crossing on the south side across US 29, with countdown pedestrian signals and accessible pedestrian signals activated by push buttons. The system will significantly improve pedestrian safety at this busy location. The signal will include a protected left-turn phase for northbound US 29 left turns onto Oak Leaf Drive to improve overall traffic operations.

US 29 at Oak Leaf Drive is a six-lane major arterial route with a posted speed limit of 45 mph. Approximately 60,300 vehicles use this section of US 29 each day. The closest protected pedestrian crossing at this location is 800 feet to the south of Oak Leaf Drive at Prelude Drive. However, pedestrians cross US 29 near Oak Leaf Drive to access nearby bus stops.


A collision with an overturned vehicle and entrapment has blocked several lanes on both northbound and southbound I270. The collision occurred on SB I270 between Rt 121 and Rt27, just before Exit 16 (one mile south of Exit 18) around 7:30am Thursday, according to Chief Spokesperson for Montgomery County Fire and Rescue Services Pete Piringer.

SB I270 between Route 121 & Rt27, just before Exit 16, (~1 Mike South of Exit 18, collision with overturn vehicle and entrapment, @mcfrs M829, RS729, PE729, A734, PE734, EMS703 responding, some lanes blocked NB & SB


On Friday the Maryland State Highway Administration (MDSHA) provided an update on the sinkhole on SB I-270 prior to exit 9 l, which is still undergoing repairs that could last until July 4th.

Per MDSHA: “Major pipe failure looked small on surface of SB I-270, but it was only the tip of the iceberg. Damage underneath was not visible to drivers but is 20 ft wide, 15 ft long & 12 ft deep. Crews are installing new 80-ft pipe w/a focus on your safety.”


A collision has closed all southbound lanes of Rockville Pike (MD-355) at Tuckerman Lane, with northbound now down to one right lane.  Drivers are to expect significant delays and advised to seek an alternate route. The collision occurred on Rockville Pike between Tuckerman Lane and Strathmore Avenue around 1:30pm on Friday afternoon.

According to Chief Spokesperson for Montgomery County Fire and Rescue Services Pete Piringer, four patients were transported to the hospital, including two juveniles, all with non life-threatening injuries (one of which was Pri2 trauma.) We will post an update when more information becomes available.


The Suds & Soles 5K will cause a few street closures in Rockville today (Saturday, June 18th). The Rockville City Police Department has let community members know that N. Washington St (from Middle Ln to E. Jefferson St) and E. Montgomery Ave./Courthouse Sq. (From N. Washington St to Maryland Ave.) will be closed from 2pm-11pm. Neighborhood roads along the course will be closed from 7pm until approximately 8:30pm.

The Suds & Soles 5K will be held this evening, June 18, 2022 at 7:30pm in Rockville Town Center.  The race is presented through a partnership of the Montgomery County Road Runners Club and the City of Rockville.  The 5K Run is open to all ages and will be followed by a fantastic post race party!  Adults will be able to sample beverages from local breweries as well as enjoy other post-race refreshments.


The right lane of southbound 355, starting 335 feet south of Marinelli Rd. until 500 feet north of Marinelli Rd on Rockville Pike will be closed beginning Wednesday, June 23 from 9am until 3pm on weekdays for a gas main replacement. The temporary closure is expected to be completed no later than July 29th. A letter, seen below, was sent by Washington Gas to the community regarding the repairs and lane closure.

Beginning, Wednesday June 23rd at 9 a.m., NPL Company will perform a replacement project operation to replace approximately 835′ of gas main at the intersection of Rockville Pike and Marinelli Rd.


The two right lanes remain closed on SB I-270 prior to I-370, due to a drainage pipe failure. The Maryland Department of Transportation State Highway Administration (SHA) has let motorists to expect major delays during tomorrow’s commute and encourages everyone to leave extra commute time, use alternate routes, or utilize mass transit.

According to yesterday’s press release from Maryland State Police: “At this time, the Maryland State Highway Administration (SHA) is out with a large sinkhole in the right lane of I-270 southbound prior to Exit 9 I-370 in Montgomery County.” The sinkhole is the result of a broken 6ft drainage pipe.


In addition to the emergency work on southbound I-270 prior to I-370 to repair a sinkhole, The Maryland Department of Transportation State Highway Administration (MDOT SHA) started a project last night, Wednesday, June 15, to resurface one mile of southbound I-270 (Eisenhower Highway) between MD 121 (Clarksburg Road) and MD 109 (Old Hundred Road) in Montgomery County. The resurfacing is part of an overall $4.3 million project to improve traffic flow by extending the acceleration lane along southbound I-270, beginning at the existing I-270 southbound truck weigh station, south of Old Hundred Road.

Crews are scheduled to work starting Wednesday night beginning at 7 p.m., requiring single- and multiple-lane closures on southbound I-270 within the project limits overnight until 4 a.m. Thursday, June 16. Work will continue 7 p.m. to 4 a.m. Sunday evenings through Friday mornings through mid-July. All work is weather permitting, and additional workdays and times may be needed to expedite the project and keep all resurfacing and pavement marking activity on schedule. MDOT SHA’s contractor Concrete General Inc., of Gaithersburg, is performing the work.


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