Farm to Market Road 423 (FM 423) is a

farm to market road In the United States, a farm-to-market road or ranch-to-market road (sometimes farm road or ranch road for short) is a state highway or county road that connects rural or agricultural areas to market towns. These are better quality roads, usually ...

Denton County Denton County is located in the U.S. state of Texas. As of the 2020 census, its population was 906,422, making it the 7th-most populous county in Texas. The county seat is Denton. The county, which was named for John B. Denton, was establis ...

Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...

Route description

FM 423 is major north–south arterial through the cities of The Colony, Frisco, and

Little Elm Little Elm is a city in Denton County, Texas, United States, and a part of the Dallas–Fort Worth metroplex. It is an extended suburb of Denton; its population was 46,453 as of the 2020 census. In 2000, the census population was at 3,646. By the ...

, providing access to area highways for both existing residences and new subdivisions being developed in central Denton County. The route begins at SH 121 (the mainlanes of which are the

Sam Rayburn Tollway The Sam Rayburn Tollway (formerly the State Highway 121 Tollway) is a tollway operated by the North Texas Tollway Authority that runs from Grapevine to McKinney. Its frontage road are signed State Highway 121. The original portion of the to ...

) in The Colony. The route travels north through The Colony, where it is known locally as Main Street, and into Frisco. It briefly skirts the eastern edge of Little Elm before reentering Frisco and ending at US 380. South of FM423 the road is signed as Josey Lane, a major north-south thoroughfare through the cities of Carrollton and Farmers Branch. Due to rapid growth during the late 1990s and early 2000s, plans were made to widen FM 423 into a six (6) to eight (8) lane thoroughfare. FM 423 will be widened to eight (8) lanes between SH121/Sam Rayburn Tollway and Ridgepointe Drive, and widened to six (6) lanes from Ridgepoint Drive north to SH380, approximately 11 miles. The new road will include auxiliary Left and Right Turn lanes, a new signal light at Lake Highlands Drive, and sound barrier walls in specific locations. Construction from the northern city limit of The Colony north to FM 720 is complete as of June 2013. The roadway construction contract was conditionally approved by TxDOT in September 2011. The construction is scheduled to start mid to late 2013 after the private utilities have completed relocation. The project was completed in September 2017.

Dedication

FM 423 was designated the ''U.S. Army Sergeant Enrique Mondragon Memorial Highway'' by HB 1044, signed into law by Governor

Greg Abbott Gregory Wayne Abbott (born November 13, 1957) is an American politician, attorney, and former jurist serving as the 48th governor of Texas since 2015. A member of the Republican Party, he served as the 50th attorney general of Texas from 2002 ...

in June 2015. SGT Mondragon, from

, was killed in action in

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...

in December 2012.

History

FM 423 was first designated on July 2, 1945. Its original routing was from Lewisville to the former Lake Dallas dam along what was then SH 24. Upon completion of the Lewisville Dam and the creation of

Lewisville Lake Lewisville Lake, formerly known as Garza-Little Elm Reservoir, is a reservoir in North Texas (USA) on the Elm Fork of the Trinity River in Denton County near Lewisville. Originally engineered in 1927 as Lake Dallas, the reservoir was expanded i ...

in 1955, the route's alignment was shifted to the east, connecting FM 720 (itself an older alignment of SH 24) to SH 121. The route was extended northward on October 31, 1958, to the newer alignment of SH 24, which would be redesignated US 380 in 1971. This route contained a concurrency with FM 720; this was removed on January 31, 2002 with the truncation of FM 720.

Major intersections

References

{{reflist 0423 Transportation in Denton County, Texas