​​​​​The Collin County Outer Loop is a 55-mile planned multi-modal transportation facility that will ultimately go from the Denton/Collin County Line, through cities including Celina, Weston, Anna, Melissa, Farmersville, Josephine and Royse City, to the Rockwall/Collin County Line. The facility will include a freeway with a wide area in the center reserved as a future transit corridor.

Since 2000, the County has been in the process of planning for the facility starting with a corridor study and leading up to the identification of a preferred alignment. A diagram of the 500-foot wide right of way is shown below to illustrate how the facility is perceived to be utilized.

An overview of the alignment can be seen in the County’s interactive map ​for more detail.

The freeway is being built in a phased approach. The construction of the service roads will be developed ahead of the freeway main lanes and the center will be reserved for the transit corridor.

Status

The Outer Loop is being developed in five segments, as can be seen on the overview map. Below is the most recent activity for each of the segments.

Segment 1: U.S. 75 to S.H. 121 (Between Anna and Melissa)

The County completed the two-lane roadway, which will function as the future westbound service road of the freeway, from US 75 to SH 121.

Segment 2: FM 6 (Between Nevada and Josephine) to Rockwall County line (E. of Royse City)

The technically preferred alignment was approved in 2009. Collin County is in the early process of moving forward on the development of the schematic.

Segment 3: Denton/Collin County Line (in Celina) to U.S. 75 (Between Anna and Melissa)

Construction

The county completed the 2-lane roadway from Dallas Pkwy to FM 2478 (Custer Rd.).

Construction of a 2-lane roadway from FM 2478 (Custer Rd.) to US 75 will begin February 2024.

Design

Design has been approved for the second set of service roads from Denton/Collin County line to Choate Pkwy.

​Schematic

The County has completed a schematic for the future Outer Loop freeway from the Denton/Collin County Line to US 75 as well as concept designs for the future Outer Loop at the interchanges with US 75, Preston Rd./SH 289 and the Dallas North Tollway. Those documents can be found in the links below.

Schematic files from Denton/Collin County Line to FM 2478 (Custer Rd.):

• Outer Loop Seg. 3 Schematic 1
• Outer Loop Seg. 3 Schematic 2
• Outer Loop Seg. 3 Schematic 3
• Outer Loop Seg. 3 Schematic 4
• Outer Loop Seg. 3 Schematic 5
• Outer Loop Seg. 3 Schematic 6

​Schematic files from FM 2478 (Custer Rd.) to US 75:

• ​Outer Loop Seg. 3 Schematic 1
• Outer Loop Seg. 3 Schematic 2
• Outer Loop Seg. 3 Schematic 3
• Outer Loop Seg. 3 Schematic 4
• Outer Loop Seg. 3 Schematic 5
• Outer Loop Seg. 3 Schematic 6
• Outer Loop Seg. 3 Schematic 7
• Outer Loop Seg. 3 Schematic 8

Concept plan for US 75/CCOL Interchange:

US 75 at CCOL Concept Plan Design​

The concept plans for the interchanges at Preston Rd. and the DNT are incorporated in the schematics.

Segment 4: US 380 (in Farmersville) to FM 6 (Josephine)

The technically preferred alignment was approved in 2010. Collin County is in the early process of moving forward on the development of the schematic.

Segment 5: S.H. 121 (in between Anna and Melissa) to U.S. 380 in Farmersville

The technically preferred alignment was approved in 2006. No other activity has been completed on this segment.

Historical Documents and Information

For Historical Corridor, Alignment and Public Information, please contact the Collin County Engineering department at 972-548-3727 or engineering@collincountytx.gov