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Collin County Outer Loop Alignment Study

Collin County ranks as one of the top growth areas in the state. Since the 2000 census, the county's population has grown by more than 15-percent and by 270-percent since the 1980 census. The population growth along with private and commercial development requires future transportation planning. Collin County officials believe that now is the time to evaluate and prepare for the next major outer-loop thoroughfare.

In June 2002, Collin County concluded an Outer Loop Route Study connecting the future extension of the Dallas North Tollway (DNT) and U.S. Highway 75. At that time, the Commissioners Court designated "Corridor A" as the locally preferred corridor (LPC).

In December 2002, Collin County initiated the Collin County Outer Loop Alignment Study to develop various alignments within and along the 3,000-foot Wide Corridor A. The alignments will comply with engineering design requirements for a transportation facility.

More recently, the Collin County Commissioners Court has approved the preparation of a study to determine a preferred corridor and route location for the Outer Loop between U.S. 75 and Rockwall County. HNTB Corporation of Plano was contracted to prepare the study.

The goal of the study is to identify a locally preferred alignment (LPA) and preserve right-of-way for its future development. Collin County leaders and project developers are now in the process of conducting public meetings and providing updates to elected officials. Scheduling information will be added to this website as it becomes available.

Additional information and project study maps regarding the Collin County Outer Loop Alignment Study can be viewed by clicking the links below.

Alignment Alternatives from Dallas North Tollway to U.S. 75:

Technically Preferred Alignment (as of November 2006)

Collin County Outer Loop Alignment Study Map
Detailed Corridor "A" Alignments 1, 1A, 2 , 2A, 3, 3A
Corridor Alternatives
Locally Preferred Corridor
Proposed Alternative Alignments

Alignment Alternatives from U.S. 75 to Rockwall County Line:

Technically Preferred Alignments from U.S. 75 to S.H. 121
Alternative Alignments from U.S. 75 to S.H. 121

Technically Preferred Alignment Draft Recommendation from S.H. 121 to U.S. 380
Alternative Alignments from S.H. 121 to U.S. 380

Technically Preferred Alignment Draft Recommendation from U.S. 380 to Rockwall County Line
Alternative Alignments from U.S. 380 to Rockwall County Line

Environmental Constraints

Public Meeting Presentations & Newsletters:

Public Hearing Presentation - December 12, 2006
Public Meeting Presentation - September 19, 2006
Public Meeting Presentation - March 23, 2006
Public Meeting Presentation - October 25, 2005
Public Meeting Presentation - October 6, 2005
Public Meeting Presentation - August 18, 2005
Public Meeting Presentation - May 19, 2005
Public Meeting Presentation - February 24, 2005

Meeting Summary - March 23, 2006 Meeting
Meeting Summary - November 1, 2005 Meeting
Meeting Summary - October 25, 2005 Meeting
Response Report - October 6, 2005 Meeting
Meeting Summary - August 18, 2005 Meeting
Meeting Summary - May 19, 2005 Meeting
Meeting Summary - February 24, 2005 Meeting
Meeting Summary - September 2004 Meetings
Response Report - September 2004 Meetings

Collin County Outer Loop Newsletter - Fall 2006 (English)
Collin County Outer Loop Newsletter - Spring 2006 (English)
Collin County Outer Loop Newsletter - Fall 2005 (English)
Collin County Outer Loop Newsletter - Spring 2005 (English)
Collin County Outer Loop Newsletter - Winter 2005 (English)

Boletín de noticias Externo Del Lazo Del Condado De Collin - Otoño 2006 (en Español)
Boletín de noticias Externo Del Lazo Del Condado De Collin - Primavera 2006 (en Español)
Boletín de noticias Externo Del Lazo Del Condado De Collin - Otoño 2005 (en Español)
Boletín de noticias Externo Del Lazo Del Condado De Collin - Primavera 2005 (en Español)
Boletín de noticias Externo Del Lazo Del Condado De Collin - Invierno 2005 (en Español)

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