Portal:Maryland roads/Did you know

To nominate a fact for the Did you know? section of the Maryland Roads portal, follow the directions here.

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... that in June 1991, a gasoline tanker attempting to exit from Interstate 68 at Cumberland, overturned and set eight houses on fire, causing US$250,000 in damage?
... that Maryland Route 24 parallels Deer Creek through Rocks State Park?
... that the Woodsboro and Frederick Turnpike, which is now part of Maryland Route 194, was the last private toll road in Maryland when it was purchased by the state in 1921?

...that Maryland Route 135 once had a sign that suggested to truck drivers "If Brakes Fail Ditch Truck Immediately" on the highway's steep descent of Backbone Mountain?
... that the Benedict Bridge, which carries Maryland Route 231 between Charles and Calvert counties in Southern Maryland, was the southernmost crossing of the Patuxent River for 25 years?
... that Maryland Route 648I is the designation for the driveway to a Knights of Columbus hall and is named McGivney Way in honor of Michael J. McGivney, the founder of the organization?

...that the bridge that carried Maryland Route 32 across the Patapsco River in Sykesville between 1963 and 2004 was the longest of only three aluminum triangular box beam girder bridges constructed in the United States?
... that much of the current alignment of Maryland Route 413 follows a former Pennsylvania Railroad line into Crisfield?
... that the Baltimore–Washington Parkway was once planned to be a part of Interstate 295, but never did because not enough funds were available to upgrade the road to Interstate Highway standards?

... that the business route of Maryland Route 5 in Hughesville uses green shields with the word "business" in place of "Maryland"?
... that the MDSHA announced plans to sell the Maryland Route 545 bridge over Little Elk Creek, built in 1932, to an interested buyer as the bridge is too narrow to carry current traffic?
... that the interchange between Maryland Route 90 and U.S. Route 113 sat unused for 24 years until US 113 was relocated as a four-lane divided highway in 2000?

... that the Maryland Route 33 drawbridge onto Tilghman Island is among the busiest in the United States and the world in terms of drawbridge openings?
...that the Harbor Tunnel Thruway, otherwise known as Interstate 895, has had three different sets of exit numbers?
...that signs were placed on westbound Interstate 70 to reduce motorist confusion between Maryland Route 68 and Interstate 68, which meet I-70 17 miles (27 km) apart in Washington County?

...that the State Circle in Annapolis is designated Maryland Route 797 and has a circumference of 0.27 miles (0.43 km)?
...that Rolling Road in Baltimore County is named for the now obsolete tobacco hogsheds being rolled to the port down the road?
...that the first modern roundabout on the Maryland highway system was constructed at the intersection of Maryland Route 94 and Maryland Route 144 in Lisbon in 1993?

... that the section of Maryland Route 307 between the Dorchester–Caroline county line and Federalsburg became the first section of state road placed under contract for construction by the Maryland State Roads Commission in June 1909?
...that when Maryland Route 145's present bridge over Loch Raven Reservoir was completed in 2000, the old bridge constructed in 1922 was retained and refurbished for recreational use?
...that Maryland Route 54 has a portion of the route along the Delaware border that is cosigned with Delaware Route 54?

...that U.S. Route 11 near Hagerstown, has been relocated and placed in a tunnel in separate projects to lengthen the runway at Hagerstown Regional Airport?
...that Maryland Route 222 is the only state route that has the same number as a U.S. route?
...that the eastern terminus of Interstate 70 is at a park and ride lot in Baltimore?

...that in 1821, the Maryland General Assembly conscripted several banks to fund the construction of a turnpike between Boonsboro and Hagerstown along what is now U.S. Route 40 Alternate between Hagerstown and Frederick?
...that the former Interstate 170 in Baltimore was proposed to connect to Interstate 95 and be renumbered Interstate 595?
...that what is now Maryland Route 150 was originally an oyster shell road connecting Highlandtown to Chase?

...that Maryland Route 2 is the longest state route in Maryland?
...that the intersection between Maryland Route 228 and Maryland Route 210 is the second continuous-flow intersection in the United States?
...that the original vertical lift bridge carrying U.S. Route 213 over the Chesapeake and Delaware Canal in Cheseapeake City was destroyed by the tanker Franz Klassen in 1942?

... that Maryland Route 378 in Ocean City is entirely one-way northbound?
...that the first roundabout constructed in St. Mary's County, Maryland, was at the junction of Maryland Route 234 and Maryland Route 238?
...that critic H. L. Mencken panned the proposed renaming of Wilkens Avenue in Baltimore as Sunset Boulevard in 1932?

...that the construction of the Hampstead Bypass along Maryland Route 30 was delayed in the 1990s due in part to a habitat of bog turtles?
...that Route 54 passes the stone boundary marker denoting the junction of the Transpeninsular Line and the southern end of the Mason–Dixon line between Mardela Springs, Maryland, and Delmar, Delaware?
...that the state renamed a part of Maryland Route 4 after murder victim Stephanie Roper?