End of US highway 178 |
Mileage: in 1989 AASHTO listed a figure of 249 miles for US 178... however, that included the mileage of US 178's associated bypass routes. According to the state subtotals on AASHTO's 1989 spreadsheet, mainline US 178's actual end-to-end total at the time was 237 miles. That closely matches our own 2020 measurement, which yielded 238.9 miles (reroutings and realignments likely explain the difference).
US 178 was commissioned in 1932, and its east end has always been at its junction with its parent route (US 78) in Dorchester: |
Straight ahead is eastbound US 78, towards Charleston. The fork to the right goes to westbound 78; "central" Dorchester is about two miles in that direction.
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US 78 heads northwest out of Charleston, paralleling I-26 for about 20 miles until Dorchester. From there, US 78 heads more westerly, towards Aiken and Augusta GA... but there US 178 begins by continuing roughly along the same corridor as I-26 for another 30 miles or so to Orangeburg (at that point, it too bears west of I-26). All of these next shots were taken from westbound US 78:
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That was looking northeast, where Chestnut Street dead-ends at the high school on Church Street (old US 64). Notice that, for travelers wanting to head east from this point (towards Brevard), the sign still recommends that they use the old highway to the right (instead of going left to modern US 64). Historically US 178 ended there, but later it was extended about a half-mile further north (left) along old US 64, to its junction with the new US 64:
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The road cut through the hillside for the "new" US 64 is visible at left. That bypasses the town of Rosman, and it was not built until about 1980. Here is a shot from the opposite direction...
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...and drivers who take that left turn will soon see the first southbound confirming marker:
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In 6.5 miles US 178 crosses into South Carolina, and then the road is signed "East" (even though Anderson is almost due south).
Research and/or photo credits: Martin Karner; Alex Nitzman; Chris Patriarca; Adam Prince; Dale Sanderson; Michael Summa; Charles Turner; Morgan Younce
Page originally created 2000;
last updated Dec. 9, 2023.
last updated Dec. 9, 2023.