Community Relations Office (August 4, 2010). "I-49 Coming to Missouri" (Press release). Missouri Department of Transportation. Archived from the original on August 5, 2012. Retrieved November 29, 2012.
ardot.gov
"I-49 Project". Arkansas Department of Transportation. Retrieved April 27, 2023.
arkansashighways.com
Nadeau, Gregory G (March 28, 2014). "Letter Approving I-49 Designation"(PDF). Letter to Scott E. Bennett. Federal Highway Administration. Archived from the original(PDF) on May 27, 2014. Retrieved May 26, 2014.
Arkansas State Highway and Transportation Department. "AHTD List of ARRA projects"(PDF). Arkansas State Highway and Transportation Department. (Though both are labeled "Hwy. 71" here, as described #030325 is AR 245/future I-130 & I-49, while #030354 is AR 549/future I-49.)
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2013. Archived from the original(PDF) on May 29, 2014.[full citation needed]
Staff (August 23, 2010). "Highway 71: Bella Vista Bypass"(PDF). TIGER II Discretionary Grant Program 2010. Arkansas State Highway and Transportation Department. Archived from the original(PDF) on November 5, 2011. Retrieved February 14, 2012.
Bennett, Scott (March 5, 2014). "AHTD Presentation to ASCE Day of Training"(PDF). Fayetteville, AR: Arkansas State Highway and Transportation Department. Archived from the original(PDF) on March 11, 2014. Retrieved March 10, 2014.
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2012. Archived from the original(PDF) on February 21, 2014.
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2012. Archived from the original(PDF) on February 21, 2014.
"Highway 71 New Location (Future Interstate 49)"(PDF). Transportation Investment Generating Economic Recovery Discretionary Grant Program Fiscal Year 2012 Application. Arkansas Department of Transportation. p. 2. Archived from the original(PDF) on February 21, 2014. Retrieved May 27, 2013.
connectingarkansasprogram.com
"Highway 71: Benton County". Connecting Arkansas Program. Arkansas State Highway and Transportation Department. February 26, 2014. Archived from the original on March 11, 2014. Retrieved March 10, 2014.
Louisiana Department of Transportation and Development. "I-49 North". Louisiana Department of Transportation and Development. Archived from the original on June 16, 2016. Retrieved August 16, 2016.
Community Relations Office (August 4, 2010). "I-49 Coming to Missouri" (Press release). Missouri Department of Transportation. Archived from the original on August 5, 2012. Retrieved November 29, 2012.
"I-49 Conversion". Missouri Department of Transportation. Archived from the original on July 10, 2016. Retrieved May 24, 2016.
Nadeau, Gregory G (March 28, 2014). "Letter Approving I-49 Designation"(PDF). Letter to Scott E. Bennett. Federal Highway Administration. Archived from the original(PDF) on May 27, 2014. Retrieved May 26, 2014.
Louisiana Department of Transportation and Development. "I-49 North". Louisiana Department of Transportation and Development. Archived from the original on June 16, 2016. Retrieved August 16, 2016.
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2013. Archived from the original(PDF) on May 29, 2014.[full citation needed]
Staff (August 23, 2010). "Highway 71: Bella Vista Bypass"(PDF). TIGER II Discretionary Grant Program 2010. Arkansas State Highway and Transportation Department. Archived from the original(PDF) on November 5, 2011. Retrieved February 14, 2012.
Bennett, Scott (March 5, 2014). "AHTD Presentation to ASCE Day of Training"(PDF). Fayetteville, AR: Arkansas State Highway and Transportation Department. Archived from the original(PDF) on March 11, 2014. Retrieved March 10, 2014.
"Highway 71: Benton County". Connecting Arkansas Program. Arkansas State Highway and Transportation Department. February 26, 2014. Archived from the original on March 11, 2014. Retrieved March 10, 2014.
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2012. Archived from the original(PDF) on February 21, 2014.
State Highway Map(PDF) (Map). Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. 2012. Archived from the original(PDF) on February 21, 2014.
"Highway 71 New Location (Future Interstate 49)"(PDF). Transportation Investment Generating Economic Recovery Discretionary Grant Program Fiscal Year 2012 Application. Arkansas Department of Transportation. p. 2. Archived from the original(PDF) on February 21, 2014. Retrieved May 27, 2013.
Special Committee on U.S. Route Numbering (October 3, 1981). "Route Numbering Committee Agenda" (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 2. Retrieved January 19, 2016 – via Wikisource.