Collin County ranks as one of the top growth areas in the state and the nation. Since the 2000 census, the county's population grew more than 52 percent by 2009, including massive private and commercial development. In that light, Collin County officials continue to evaluate and prepare for the next major outer-loop thoroughfare.
In December 2002, Collin County initiated the Outer Loop Alignment Study to develop various alignments within and along a 3,000-foot-wide corridor. The study identified a locally preferred alignment in order to determine right-of-way needs for the road to be built when the time comes.
Most recently, Commissioners approved contracts with local engineering firms to refine the technically preferred alignment and finalize the engineering design of several segments of more than 50 miles of Collin County’s portion of the regional outer loop.
Additional information and project study maps regarding the Collin County Outer Loop Alignment Study can be viewed by clicking the links below.
Outer Loop Overview
Outer Loop at U.S. 75 Interchange Preliminary Engineering Study
Concept Plan Design
Sept. 21, 2015, Collin County Toll Authority Board Meeting:
Preliminary Engineering Technical Presentation by HNTB
Environmental Document Presentation by NCTCOG
Approved Local Environment Document, Sept. 21, 2015
Segment 1: U.S. 75 to S.H. 121 (in Melissa)
Segment 1: Technically Preferred Alignment (November 2006)
Segment 1: Local Environmental Document
Segment 1: 2-lane Service Road Plans
Segment 1: 2-lane Service Road Construction Phase Sheets
Segment 2: FM 6 to Rockwall County line
Segment 2: Technically Preferred Alignment Approved for Public Meetings (Updated September 2010)
Segment 2: Technically Preferred Alignment Approved for Public Meetings (July 2009)
Segment 2: Environmental Contraints
September 17, 2009 Nevada, TX:
Segment 2 and 4 Alignment Presentation at Community High School
Segment 3: Dallas North Tollway to U.S. 75
NEW as of December 2017
Design is ongoing for the construction of a
two-lane service road from the Dallas North Tollway to just east of SH 289.
This effort includes the Preliminary Engineering Concept Design for the
Interchanges at the Outer Loop and Dallas North Tollway and the Outer Loop at
SH 289. These Interchange Concept Designs are for the purpose of Right of Way
acquisition only. Additionally, schematic design for the entirety of Segment 3 from the Collin/Denton County line is in progress. Please contact the Engineering Department Staff for more details, 972-548-3727.
In October 2017 a public meeting was held
to present a revised alignment for the portion of Segment 3 located between
SH 289 and US 75. Commissioners Court approved this alignment in
December 2017.
Oct. 2, 2017: Open House Public Meeting Summary
Approved alignment from SH 289 to US 75, Exhibit 1
Approved alignment from SH 289 to US 75, Exhibit 2
Approved alignment from SH 289 to US 75, Exhibit 3
Approved alignment from SH 289 to US 75, Exhibit 4
Segment 3: Technically Preferred Alignment (updated August 2012)
Oct. 27, 2015:
Open House Public Meeting
Open House Public Meeting Summary
Segment 3a Open House Public Meeting Comment form
Segment 3a, 2-lane Service Road Schematic
Outer Loop at Dallas North Tollway Concept Design
Outer Loop at S.H. 289 Concept Design
Aug. 6, 2012,
Public Hearing
Segment 3: SH 289 to FM 2478 Presentation
Segment 3: SH 289 to FM 2478 Alignment Alternatives
Segment 3: SH 289 to FM 2478 Approved Technically Preferred Alignment
Public Comment Form
Combined Final Report
May 10, 2012,
Collin County Toll Road Authority Meeting:
Segment 3 Diagrammatic Layout
Oct. 24, 2011,
Collin County Toll Road Authority Meeting:
Segment 3 Presentation
Segment 3 Study Findings
Segment 3 Diagrammatic Layout
Segment 3: Technically Approved Alignment (August 1, 2011)
Aug. 1, 2011,
Collin County Toll Road Authority Meeting:
Segment 3 Alignment Alternatives
Segment 3 Presentation to Court
Segment 3 Final Report
May 16, 2011 Public Hearing:
Outer Loop Public Comment Form
Outer Loop Segment 3 Map (April 2011)
Public Hearing Presentation
April 11, 2011,
Collin County’s Toll Road Authority Meeting
August 26, 2010, Weston, TX Property Owners Meeting:
DRAFT Segment 3 Alignment
Segment 3: Technically Preferred Alignment (November 2006)
Segment 4: US 380 to FM 6
Segment 4: Technically Preferred Alignment Approved for Public Meetings (Updated September 2010)
Segment 4: Technically Preferred Alignment Approved for Public Meetings (July 2009)
Segment 4: Environmental Constraints
Sept. 17, 2009, Nevada, TX:
Segment 2 and 4 Alignment Presentation at Community High School
Segment 5: S.H. 121 to U.S. 380 (Farmersville)
Segment 5: Technically Preferred Alignment (November 2006)
Historical Documents and Information
Historical Corridor & Alignment Study documents
