| Country: | USA |
| Type: | US |
| Route: | 77 |
| Map Custom: | yes |
| Map Notes: | US 77 highlighted in red |
| Length Mi: | 1305 |
| Length Round: | 0 |
| Established: | 1926 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | at Mexican Border in Brownsville, TX |
| Junction: |
|
| Terminus B: | at Sioux City, IA |
| States: | Texas, Oklahoma, Kansas, Nebraska, Iowa |
| Previous Type: | US |
| Previous Route: | 76 |
| Next Type: | US |
| Next Route: | 78 |
U.S. Route 77 (US 77) is a major north–south United States Numbered Highway which extends for 1305miles in the central United States. As of 2005, Its southern terminus is in Brownsville, Texas, at Veteran's International Bridge on the Mexican border, where it connects with both Mexican Federal Highway 101 and Mexican Federal Highway 180, and the highway's northern terminus is in Sioux City, Iowa, at an interchange with Interstate 29 (I-29), less than NaNmiles north of the Nebraska state line.[1]
It is unsigned in and around Dallas, Texas. Its historic segment through South Dakota and Minnesota was decommissioned with the advent of I-29 but otherwise the route has been spared the decommissioning that has shortened other US Highways. The route has major freeway sections in Oklahoma City including the Broadway Extension connecting suburban Edmond to downtown Oklahoma City.
|-|TX|471miles|-|OK|268miles|-|KS|234miles|-|NE|190miles|-|IA|0.3miles|-|Total|1305miles|}
See main article: U.S. Route 77 in Texas. The section between the Oklahoma–Texas state line and Waco is mostly co-located with I-35 and the I-35E branch through Dallas, and where it is co-located, it is not signed.
The two stretches in Texas that are not co-located are a stretch wholly within the city of Denton and a longer stretch from near Red Oak, to Hillsboro, the reason being that US 77 is a separate road between the two, serving the town of Waxahachie.
As of 2004, US 77 Alternate has a northern terminus in Hallettsville, Texas. It rejoins US 77 at Refugio, Texas. While the main line of US 77 passes through Victoria, Alternate US 77 veers to the west to serve Yoakum and Cuero.
The southern end extends from I-37 near Corpus Christi to Harlingen, where it merges with US 83 and runs through the cities of Harlingen, San Benito and Brownsville to its southern terminus at the United States/Mexico border.
A section of US 77 located in the Giddings, Texas area is known as the Martin Luther King Jr. Memorial Highway.
Another section of US 77, from I-37 to SH 44 in Nueces County, was redesignated I-69/US 77 in 2011.
As of 2017, US 77 is being co-signed with I-35E as part of the reconstruction co-signed between Denton and I-635.
See main article: U.S. Route 77 in Oklahoma. In Oklahoma, US 77 runs north–south, paralleling I-35, connecting Texas to Kansas and running for 268miles through the central part of the state. It passes through many major cities, including Ardmore, Oklahoma City and Norman, Guthrie, and Ponca City. It has a freeway section, the Broadway Extension, connecting Oklahoma City to its northern suburb Edmond, in addition to sections that are co-flagged with I-35 and I-235.
See main article: U.S. Route 77 in Kansas. US 77 runs for 234miles in Kansas. Between the US 40 junction and the Cowley County line is designated as a Blue Star Memorial Highway. In Cowley County, it is the Robert B. Docking Memorial Highway. Near Arkansas City it is the Walnut Valley Greenway.[2]
From Nebraska to US 24 and from K-15 to Arkansas City, it is part of the National Highway System.[2]
See main article: U.S. Route 77 in Nebraska.
In Nebraska, US 77 is a major north–south artery connecting the capital city of Lincoln with outlying areas to the north and south. The highway is designated as the Homestead Expressway from Beatrice to I-80 at Lincoln. In Lincoln, US 77 becomes a full controlled-access expressway before it overlaps with I-80 for about 8miles. North of I-80, US 77 continues as an expressway to Wahoo, where it becomes a two-lane undivided road. It remains a two-lane highway except for two sections near Fremont, which are four-lane divided highways. The expressway north of Fremont is shared with US 275 and Nebraska Highway 91. US 275 and NE 91 separate from US 77 just south of Winslow, and US 77 continues north as a two-lane highway until it meets US 75 at Winnebago. The two highways run together to the junction of I-129 and US 20 at Dakota City, where US 75 breaks off and US 77 continues northward as a divided highway through South Sioux City before exiting the state via the Siouxland Veterans Memorial Bridge.
See main article: U.S. Route 77 in Iowa. US 77 barely enters Iowa. After crossing the Missouri River via the Veteran's Bridge at Sioux City, the highway ends at a diamond interchange with I-29. Its total length in Iowa is slightly more than NaNmiles.
US 77 previously extended north through South Dakota to Ortonville, Minnesota. It followed the current I-29 corridor up to the Toronto, South Dakota area, and then followed current South Dakota Highway 15 north to Milbank, South Dakota. After reaching Milbank, it traveled to the east, concurrently with US 12 to Ortonville, where it ended at an intersection with US 75. The segment between Milbank and Ortonville was decommissioned in 1966; the remaining South Dakota portion along with most of the highway's length in Iowa section was removed in October 1981. Portions of the old highway in the Sioux Falls, South Dakota area exist today as South Dakota Highway 115, and further north, as Moody County Road 77 and Brookings County Road 77.
US 77 is currently being upgraded between the Mexican border in Brownsville to Victoria, Texas, as I-69E.