THC Science

... that Hawaii Route 560 (pictured) was added to the National Register of Historic Places in 2004 because of its historical character of one lane bridges?
...that a one-mile (1.6 km) stretch of New Jersey Route 57 in Franklin Township, Warren County was the first concrete road built in New Jersey, having been constructed in 1912?
...that US 395 was unaffected by California's 1964 state highway renumbering, but it was later truncated due to an expansion of I-15 and I-215?
...that Maryland Route 577 follows the border between Caroline and Dorchester counties for its entire length?
...that 3 pairs of California and Nevada state highways retain the same number while crossing the state border, California State Route 28/Nevada State Route 28, California State Route 88/Nevada State Route 88 and California State Route 266/Nevada State Route 266?

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