Historic endpoints of US Highway 377
View a map showing this route.
Additional research and/or photo credits: Robert
Brooks; Brian Kosich; Steven
Nelson; Eric
Stuve; Stephen
Taylor
US 377 was commissioned in 1930; at the time its south end was at US 81 in Fort Worth. I'm not sure when one-ways were introduced in FtW, but today historic US 81 is split into the one-way couplet of Commerce and Houston Streets, and old 377 splits into the Belknap/Weatherford Streets couplet. Below is a view from what's likely the historic south end of US 377:
Brooks, May 2004
We're heading west on Belknap, looking at Commerce and the Tarrant County Courthouse. A right turn here would've been north on US 81, or a left turn on the far side of the courthouse (on Houston) would've been south on US 81...
...but it was only two years later that the south end was extended to Stephenville TX. Here's a 1936 TXDoT map scan:
TXDoT
It's possible that the 377 designation would've ended at its junction with US 281 on the east edge of town, but it seems more likely that the two routes would've been co-signed to the junction with US 67 downtown. The photo below is looking west on Washington Street:
Taylor, Aug. 2004
US 377 was likely signed to this intersection at Graham Street. Southbound US 281 turned left, joining eastbound US 67. Westbound 67 was straight ahead. Note that - thanks to a couple recent bypasses - none of the mainline US routes are directed through this intersection anymore, although Washington is Business 377.
Below we're looking north on Graham:
Taylor, Aug. 2004
That used to be westbound US 67 (which turned left here on Washington) and northbound US 281 (which turned right). Also to the right was the south beginning of US 377. That lasted about 20 years. Then in 1951 the US 377 designation was extended further south, to its current terminus in Del Rio TX (you can view photos from both locations and get more info on my main US 377 page).
Now, on to the north end of US 377: originally it was in Denton TX. Here's a clip from the 1936 TX DoT map of Denton County:

That makes it look like 377 came in on Locust Street. If so, it probably would've ended at the "Y" junction south of downtown, where US 77 came in on Dallas Drive. Below is a perspective from there:
Nelson,
Dec. 2005
That's looking north on Locust at Eagle Drive. Then, as today, US 77 came in from the right and continued straight ahead, so US 377 could've ended right there... or it might've been duplexed up to the courthouse (the spire of which is visible in the distance). Up ahead, right at the courthouse square, US 77 turned left for one block before heading north again on Elm Street. So in later years, after US 377 had been upgraded to its current viaduct under the railroad and came into town on Fort Worth Drive (one block to the left from here), it continued up Elm to end right downtown, at the jog in US 77.
In 1968, US 377 was extended north from Denton (although Texas may not have signed the extension until 1969). Upon crossing into Oklahoma, it was routed along OK 99 to Madill. Originally OK 99 came into town via 5th Avenue, then east on Lilley Boulevard and out of town via Main Street. But by the time US 377 was signed along OK 99, a bypass had been built along the south edge of town, so US 377 ended where that bypass junctions with US 70:
Stuve,
May 2004
Today US 377 continues to the left, but it once ended here. That assembly is also visible in the photo below, which is looking north on First Street, or west on US 70:
Stuve, May 2004
US 377 used to begin to the left. Although not indicated on that assembly, northbound US 377 is straight ahead (but notice the route is sometimes signed east/west in this area). Not so on the photo below, which was taken looking the opposite direction (south on 1st):
Nelson, May 2006
The north beginning of US 377 was once to the right. In 1991 OK DoT extended the US 377 designation further north, to its present terminus at Stroud (you can view photos from there on my main US 377 page).