Delaware Route 1 (English Wikipedia)

Nann Burke, Melissa; Fisher, James (July 3, 2014). "Handling the horde to get to the beach". The News Journal. Wilmington, Delaware. Retrieved December 20, 2016.
Lytle, Emily (February 15, 2022). "What are those new posts doing in the median at Dewey Beach? We've got the answers". The News Journal. Wilmington, DE. Retrieved February 15, 2022.
Smith, Jerry (January 10, 2019). "U.S. 301 Mainline toll road opens Thursday to cheers and jeers". The News Journal. Wilmington, DE. Retrieved January 10, 2019.
Gamard, Sarah (March 16, 2020). "No cash at toll booths: Delaware drivers to be sent into EZPass lanes; bill will come in mail". The News Journal. Wilmington, DE. Retrieved January 23, 2023.
Perez, Nick (May 22, 2020). "Delaware's toll plazas resume cash collection". The News Journal. Wilmington, DE. Retrieved January 23, 2023.
Smith, Jerry (February 6, 2017). "$31 million road could prop up Dover Mall". The News Journal. Wilmington, DE. Retrieved October 5, 2022.

deldot.gov

Staff (2018). "Traffic Count and Mileage Report: Interstate, Delaware, and US Routes" (PDF). Delaware Department of Transportation. Retrieved March 29, 2020.
Delaware Department of Transportation (2003). Delaware Official Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation (2017). Official Travel & Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved August 18, 2019.
Delmarva Peninsula Evacuation Route Map (PDF) (Map). Delaware Department of Transportation. Retrieved March 22, 2017.
"Delaware Bayshore Byway". Delaware Department of Transportation. Retrieved December 30, 2017.
"State Route 1 Toll Rate Grid". Delaware Department of Transportation. Retrieved March 31, 2012.
"Delaware Route 1 Toll Increases Effective Aug. 1st". Delaware Department of Transportation. July 14, 2014. Retrieved July 16, 2014.
"Tolls, Motor Vehicle Fees Increase October 1". Delaware Department of Transportation. September 27, 2007. Retrieved July 16, 2014.
John Milner Associates (July 2005). Historic Context for the DuPont Highway U.S. Route 113: Kent and Sussex County, Delaware (PDF). in association with Whitman, Requardt, Inc. and Rummel, Klepper & Kahl, LLP. Dover: Delaware Department of Transportation. pp. 6, 8. Retrieved January 29, 2014.
Delaware State Highway Department (1920). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report of the State Highway Department (PDF) (1925 ed.). Dover: Delaware State Highway Department. December 31, 1925. p. 17. Archived from the original (PDF) on September 23, 2015. Retrieved January 30, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1934 ed.). Dover: Delaware State Highway Department. January 1, 1935. pp. 9, 16, 39. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1933 ed.). Dover: Delaware State Highway Department. January 1, 1934. pp. 27, 40. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1935 ed.). Dover: Delaware State Highway Department. January 7, 1936. p. 28. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Delaware State Highway Department (1959). Official Highway Map of Delaware (PDF) (Map) (1959–1960 ed.). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Delaware State Highway Department (1965). Official Highway Map of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Delaware Department of Highways and Transportation (1976). Delaware Highways Official Map (PDF) (Map). Dover: Delaware Department of Highways and Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation (1985). Official State Highway Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware State Highway Department (1924). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Delaware State Highway Department (1925). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report of the State Highway Department (PDF) (1927 ed.). Dover: Delaware State Highway Department. December 31, 1927. p. 7. Archived from the original (PDF) on September 23, 2015. Retrieved October 30, 2014.
Delaware State Highway Department (1931). Official Road Map of the State of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report of the State Highway Department (PDF) (1931 ed.). Dover: Delaware State Highway Department. December 31, 1931. p. 38. Archived from the original (PDF) on September 23, 2015. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1932 ed.). Dover: Delaware State Highway Department. December 31, 1932. p. 37. Archived from the original (PDF) on January 7, 2010. Retrieved October 30, 2014.
Delaware State Highway Department; The National Survey Co. (1936). Official Road Map of the State of Delaware (PDF) (Map) (1936–1937 ed.). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report of the State Highway Department (PDF) (1939 ed.). Dover: Delaware State Highway Department. January 1, 1940. p. 21. Archived from the original (PDF) on May 12, 2013. Retrieved October 30, 2014.
Delaware State Highway Department (1939). Official Road Map of the State of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report of the State Highway Department (PDF) (1940 ed.). Dover: Delaware State Highway Department. January 1, 1941. pp. 5, 13. Archived from the original (PDF) on May 12, 2013. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1941-42 ed.). Dover: Delaware State Highway Department. July 1, 1942. p. 23. Archived from the original (PDF) on January 23, 2019. Retrieved November 17, 2014.
Delaware State Highway Department (1942). Official Road Map of the State of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Report of the State Highway Department (PDF) (1954 ed.). Dover: Delaware State Highway Department. July 1, 1954. p. 12. Archived from the original (PDF) on September 23, 2015. Retrieved October 31, 2014.
Report of the State Highway Department (PDF) (1955 ed.). Dover: Delaware State Highway Department. July 1, 1955. p. 21. Archived from the original (PDF) on September 23, 2015. Retrieved October 31, 2014.
Delaware State Highway Department (1954). Official Highway Map of Delaware (PDF) (Map) (1954–1955 ed.). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
1965 Annual Report Delaware State Highway Department (PDF) (1965 ed.). Dover: Delaware State Highway Department. June 30, 1965. p. 22. Retrieved October 31, 2014.
Delaware State Highway Department (1966). Official Highway Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
1967 Annual Report Delaware State Highway Department (PDF) (1967 ed.). Dover: Delaware State Highway Department. June 30, 1967. p. 11. Retrieved October 31, 2014.
Delaware State Highway Department (1967). Official Highway Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Annual Report 1968 (PDF) (1968 ed.). Dover: Delaware State Highway Department. June 30, 1968. p. 18. Archived from the original (PDF) on September 23, 2015. Retrieved October 31, 2014.
Annual Report 1969 (PDF) (1969 ed.). Dover: Delaware State Highway Department. June 30, 1969. p. 18. Retrieved October 31, 2014.
Delaware State Highway Department (1969). Official Highway Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
Delaware State Highway Department Annual Report 1970 (PDF) (1970 ed.). Dover: Delaware State Highway Department. June 30, 1970. p. 15. Archived from the original (PDF) on February 11, 2017. Retrieved October 31, 2014.
Delaware Department of Highways and Transportation (1971). Delaware Highways Official Map (PDF) (Map). Dover: Delaware Department of Highways and Transportation. Retrieved November 24, 2015.
Annual Report 1972 (PDF) (1972 ed.). Dover: Delaware Department of Highways and Transportation. October 15, 1972. p. 18. Archived from the original (PDF) on February 17, 2017. Retrieved October 31, 2014.
Annual Report 1971 (PDF) (1971 ed.). Dover: Delaware Department of Highways and Transportation. November 15, 1971. p. 6. Archived from the original (PDF) on September 10, 2012. Retrieved October 31, 2014.
Delaware Department of Highways and Transportation (1973). Delaware Highways Official Map (PDF) (Map). Dover: Delaware Department of Highways and Transportation. Retrieved November 24, 2015.
Annual Report 1975 (PDF) (1975 ed.). Dover: Delaware Department of Highways and Transportation. 1975. p. 14. Archived from the original (PDF) on February 17, 2017. Retrieved October 31, 2014.
Delaware Department of Transportation (1981). Delaware Official State Highway Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation (1988). Official State Highway Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
"SR-1 Corridor-Preservation Project" (PDF). On the Road. No. 1. Dover: Delaware Department of Transportation. Summer 1991. p. 1. Archived from the original (PDF) on September 25, 2006. Retrieved April 4, 2017.
"Plantation Road Workshop Display" (PDF). Delaware Department of Transportation. February 15, 2018. Retrieved February 24, 2018.
Delaware Department of Transportation (2006). Delaware Official Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
"Western Parkway Project Contract # 25-125-01". Delaware Department of Transportation. Archived from the original on August 7, 2007. Retrieved February 24, 2018.
"Traffic Alert - Route 1 Expansion Project Complete" (Press release). Delaware Department of Transportation. June 9, 2008. Retrieved October 25, 2014.
"Route 1 and Route 9 Overpass Groundbreaking Event" (Press release). Delaware Department of Transportation. October 27, 2008. Retrieved December 20, 2017.
"Traffic Alert - Route 1 & Route 9 Overpass Project Will Require Closure of Route 9 & Kitts Hummock Road" (Press release). Delaware Department of Transportation. September 14, 2009. Retrieved February 8, 2011.
"Construction to begin for Route 1, North Frederica Grade Separated Intersection" (Press release). Delaware Department of Transportation. November 23, 2009. Retrieved December 29, 2009.
"Traffic Alert: Opening of Route 1, North Frederica Overpass" (Press release). Delaware Department of Transportation. June 24, 2011. Retrieved July 8, 2011.
"Route 1 and 30/Wilkins Road Intersection To Close" (Press release). Delaware Department of Transportation. September 6, 2011. Retrieved March 29, 2018.
"Massive Nighttime Concrete Pour Planned For New Indian River Inlet Bridge" (PDF). Delaware Department of Transportation. July 30, 2009. Retrieved April 17, 2012.
"Indian River Inlet Bridge". Delaware Department of Transportation. Retrieved April 17, 2012.
"Routes 1 and 30 Grade Separated Intersection Completed" (Press release). Delaware Department of Transportation. July 25, 2014. Retrieved August 4, 2014.
"Pedestrian Improvements to Route 1 (Coastal Highway) Completed" (Press release). Delaware Department of Transportation. June 13, 2016. Retrieved June 14, 2016.
"State Route 1, Thompsonville Grade Separated Intersection". Delaware Department of Transportation. Retrieved March 24, 2012.
"SR 1 Thompsonville Grade Separated Intersection - Open to Traffic" (Press release). Delaware Department of Transportation. November 10, 2016. Retrieved November 10, 2016.
"State Route 1, South Frederica Grade Separated Intersection". Delaware Department of Transportation. Retrieved March 24, 2012.
"South Frederica GSI to open on Tuesday" (Press release). Delaware Department of Transportation. July 9, 2018. Retrieved July 9, 2018.
"Ribbon cut on South Frederica Grade-Separated Intersection" (Press release). Delaware Department of Transportation. August 10, 2018. Retrieved August 10, 2018.
"SR1, Northeast Front Street Grade Separated Intersection Construction Phasing" (PDF). Delaware Department of Transportation. Retrieved February 23, 2018.
"Ribbon to be Cut on North East Front Street Intersection" (Press release). Delaware Department of Transportation. May 17, 2019. Retrieved May 17, 2019.
"DelDOT Breaks Ground On Little Heaven Grade Separated Intersection" (Press release). Delaware Department of Transportation. November 9, 2015. Retrieved November 15, 2015.
"State Route 1, Little Heaven Grade Separated Intersection". Delaware Department of Transportation. Retrieved March 24, 2012.
"Traffic Alert - SR 1, Little Heaven Grade Separated Intersection Project -- New Traffic Pattern on SR 1 SB" (Press release). Delaware Department of Transportation. December 19, 2017. Retrieved December 20, 2017.
"Traffic Alert - Traffic Switch Will Require Weekday Lane Closure on Route 1" (Press release). Delaware Department of Transportation. February 21, 2018. Retrieved February 27, 2018.
"Traffic Alert - Update: Route 1 - New Traffic Pattern in Little Heaven" (Press release). Delaware Department of Transportation. March 1, 2019. Retrieved March 1, 2019.
"Traffic Alert - New Traffic Pattern - Little Heaven" (Press release). Delaware Department of Transportation. June 10, 2019. Retrieved June 10, 2019.
"Ribbon cut on Little Heaven intersection project" (Press release). Delaware Department of Transportation. August 13, 2019. Retrieved August 13, 2019.
"Traffic Alert - Reconstruction of Island and Traffic Pattern Change at Route 1 NB/SB-Sussex County" (Press release). Delaware Department of Transportation. April 6, 2020. Retrieved April 10, 2020.
"Project: Plantation Road Improvements, Robinsonville Road to US 9 (Phase 1)". Delaware Department of Transportation. Retrieved March 30, 2023.
"Traffic Alert - Sussex County - New Route 1 Northbound Travel Pattern at Route 16 Begins Next Week" (Press release). Delaware Department of Transportation. May 24, 2023. Retrieved May 24, 2023.
"Traffic Alert - Sussex County - New Traffic Pattern at SR 1 and SR 16" (Press release). Delaware Department of Transportation. June 27, 2023. Retrieved July 10, 2023.
"Traffic Alert - Sussex County - Rt. 1 and Rt. 16 - New Traffic Pattern" (Press release). Delaware Department of Transportation. April 11, 2025. Retrieved April 11, 2025.
"HEP Sussex County, SR 1 and SR 16 Grade Separated Intersection". Delaware Department of Transportation. Retrieved July 9, 2019.
"SR 1, Minos Conaway Road Grade Separated Intersection". Delaware Department of Transportation. Retrieved July 9, 2019.
"SR 1 and Cave Neck Road Grade Separated Intersection". Delaware Department of Transportation. Retrieved February 21, 2024.
Griffith, Daniel R.; Artusy Jr., Richard E. (January 26, 1976). An Assessment of the Prehistoric Archaeological Resources of the Proposed Dover Bypass Corridor, Frederica to Route 100, Kent County, Delaware (PDF) (Report). Delaware Department of State. Archived from the original (PDF) on September 23, 2015. Retrieved October 17, 2014.
Benenson, Carol A.; Bower, Mark A. (1987). Architectural Investigation U.S. Route 13 Relief Route, Route 7 to U.S. Route 113, New Castle and Kent Counties, Delaware (PDF) (Report). Federal Highway Administration and Delaware Department of Transportation. Archived from the original (PDF) on March 4, 2016. Retrieved October 17, 2014.
"Progress on SR 1 Moves Forward" (PDF). On the Road. No. 14. Delaware Department of Transportation. Fall 1993. p. 1. Archived from the original (PDF) on September 29, 2006. Retrieved November 30, 2016.
Delaware Department of Transportation Division of Planning Cartographic Information Section (1994). Delaware Official State Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation Division of Planning Cartographic Information Section (1996). Delaware Official State Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation (1997). Official Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved March 2, 2016.
"I-95 Corridor Projects". Delaware Department of Transportation. Archived from the original on July 11, 2012. Retrieved October 20, 2014.
"JFK Memorial Highway Improvement Program; Churchman's Road/SR 7 Interchange". Delaware Department of Transportation. Archived from the original on July 12, 2012. Retrieved February 19, 2018.
"Dover Air Force Base Section" (PDF). On the Road. No. 6. Dover: Delaware Department of Transportation. Winter 1991. p. 2. Archived from the original (PDF) on September 29, 2006. Retrieved April 4, 2017.
Delaware Department of Transportation (1999). Delaware Official Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
Delaware Department of Transportation (2001). Delaware Official Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved March 2, 2016.
"Dedication Ceremony Held For Opening Of E-ZPass Express Lanes at the Dover Toll Plaza" (Press release). Delaware Department of Transportation. May 24, 2004. Retrieved February 19, 2018.
"I-95 Corridor Projects – SR1 / I-95 Interchange". Delaware Department of Transportation. Archived from the original on March 12, 2012. Retrieved March 24, 2012.
"Christiana Mall Road Bridge to be Rebuilt". Delaware Department of Transportation. February 21, 2011. Archived from the original on May 11, 2011. Retrieved March 24, 2012.
"Major Improvements Completed on I-95/SR-1 Interchange". Delaware Department of Transportation. October 17, 2013. Retrieved October 24, 2013.
"DelDOT to begin the SR 1 Northbound Auxiliary Lane, U.S. Route 40 to SR 273 Project" (Press release). Delaware Department of Transportation. September 11, 2015. Retrieved September 12, 2015.
"Start of Construction for Delaware's First Diverging Diamond Interchange Celebrated by State and Local Officials" (Press release). Delaware Department of Transportation. April 29, 2016. Retrieved May 2, 2016.
"Traffic Pattern Activiated for the New Diverging Diamond Interchange at State Route 1 and Route 72" (Press release). Delaware Department of Transportation. November 18, 2016. Retrieved November 21, 2016.
"SR 1 Virtual Weigh Station Opening - Kent County" (Press release). Delaware Department of Transportation. April 19, 2017. Retrieved April 19, 2017.
"Traffic Alert - Updated: US 301 Mainline Project - Opening of New SR 1 NB Free Ramp" (Press release). Delaware Department of Transportation. December 14, 2018. Retrieved December 18, 2018.
"Real-Time Travel Advisory". Delaware Department of Transportation. December 24, 2018. Retrieved December 25, 2018.
"Traffic Alert - DelDOT Announces Opening of New Route 1 Southbound Auxiliary Lane" (Press release). Delaware Department of Transportation. November 12, 2020. Retrieved November 12, 2020.
"SR 1 Widening, SR273 to the Roth Bridge". Delaware Department of Transportation. Retrieved October 22, 2021.
"Welcome to the SR 1 Widening, Road A to Tybouts Corner - Virtual Public Workshop". Delaware Department of Transportation. October 27, 2021. Retrieved November 16, 2021.
Delaware State Highway Department Report (PDF) (1926 ed.). Dover: Delaware State Highway Department. December 31, 1926. p. 35. Archived from the original (PDF) on February 9, 2017. Retrieved November 6, 2014.
Annual Report of the State Highway Department (PDF) (1928 ed.). Dover: Delaware State Highway Department. December 31, 1928. p. 8. Archived from the original (PDF) on September 23, 2015. Retrieved November 6, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1929 ed.). Dover: Delaware State Highway Department. December 31, 1929. p. 13. Archived from the original (PDF) on September 23, 2015. Retrieved November 6, 2014.
Annual Report of the State Highway Department (PDF) (1930 ed.). Dover: Delaware State Highway Department. December 31, 1930. pp. 8, 10. Archived from the original (PDF) on July 21, 2011. Retrieved January 30, 2014.
Delaware Department of Transportation (1984). Official State Highway Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.

deldot.net

"SR1 Sidewalks, Dewey Beach to Canal, Improvements". Delaware Department of Transportation. Archived from the original on January 29, 2006. Retrieved February 19, 2018.
"Route 1 & Route 8 Partial Interchange Opens Today". Delaware Department of Transportation. September 5, 2002. Archived from the original on December 9, 2003. Retrieved October 19, 2014.
"SR-1 Traffic Switch Moves Forward". Delaware Department of Transportation. May 6, 2002. Archived from the original on August 17, 2003. Retrieved October 19, 2014.

deldot.org

"EZ Pass" (PDF). On the Road. No. 23. Delaware Department of Transportation. Summer 1999. p. 2. Archived from the original (PDF) on February 11, 2005. Retrieved April 5, 2017.
"State Route 1 Odessa to the Canal Overview". Internet Archives WayBack Machine. Delaware Department of Transportation. Archived from the original on June 24, 2003. Retrieved February 19, 2018.
"State Route 1 Project Timeline". Delaware Department of Transportation. Archived from the original on June 24, 2003. Retrieved October 16, 2014.
"State Route 1 Tybouts Corner to I-95 / Christiana Mall Overview". Delaware Department of Transportation. Archived from the original on October 24, 2003. Retrieved October 19, 2014.
"Relief Route Designated State Route 1" (PDF). On the Road. No. 1. Delaware Department of Transportation. Summer 1989. p. 2. Archived from the original (PDF) on July 3, 2003. Retrieved October 19, 2014.
"New C&D Canal Bridge" (PDF). On the Road. No. 5. Delaware Department of Transportation. Fall 1990. p. 2. Archived from the original (PDF) on February 11, 2005. Retrieved October 18, 2014.
"State Route 1 Chesapeake and Delaware Canal Bridge to Tybouts Corner Overview". Delaware Department of Transportation. Archived from the original on June 24, 2003. Retrieved October 17, 2014.
"EZ Pass" (PDF). On the Road. No. 23. Delaware Department of Transportation. Summer 1999. p. 2. Archived from the original (PDF) on February 11, 2005. Retrieved April 5, 2017.
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"Partial Interchange Coming to Dover" (PDF). On the Road. No. 27. Delaware Department of Transportation. Spring 2002. p. 1. Archived from the original (PDF) on February 11, 2005. Retrieved October 18, 2014.
"FHWA Grants Final Design Approval" (PDF). On the Road. No. 13. Delaware Department of Transportation. Spring 1993. p. 1. Archived from the original (PDF) on February 11, 2005. Retrieved October 18, 2014.
Gopal, Prashant (September 30, 2001). "Traffic will shift onto new U.S. 13" (PDF). The News Journal. Wilmington, DE: Gannett. Archived from the original (PDF) on June 26, 2003. Retrieved October 18, 2014.
Volturo, Drew (April 18, 2002). "U.S. 13 to shift in Odessa" (PDF). Delaware State News. Dover. Archived from the original (PDF) on July 2, 2003. Retrieved October 18, 2014.
"State Route 1 Korean War Veterans Memorial Highway". Delaware Department of Transportation. Archived from the original on June 22, 2003. Retrieved October 17, 2014.
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doverpost.com

Finney, Mike (March 20, 2016). "State officials break ground in South Frederica: Overpass seen as key to area's growth, safety". Dover Post. Retrieved June 8, 2016.

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maryland.gov

msa.maryland.gov

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nbcphiladelphia.com

Chang, David (August 27, 2013). "New Flyover Ramp Provides Easier Commute for Del. Drivers". Philadelphia, PA: WCAU-TV. Retrieved September 18, 2013.

newarkpostonline.com

"Major improvements underway to Route 1 and I-95 interchange". Newark Post. December 9, 2011. Retrieved March 24, 2012.
"New Christiana Mall Road Bridge open". Newark Post. March 8, 2012. Retrieved March 24, 2012.

news.google.com

O'Shea, Dennis (October 26, 2006). "Replacing Indian River Inlet bridge a vital project". Cape Gazette. p. 7. Retrieved April 17, 2012.
MacArthur, Ron (August 9, 2007). "DelDOT officials say inlet bridge is safe". Cape Gazette. p. 1. Retrieved April 17, 2012.
Spence, Kevin (June 22, 2006). "Rehoboth celebrates completion of Streetscape". Cape Gazette. p. 4. Retrieved February 6, 2013.

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Anderson, Logan B. (February 1, 2015). "DelDOT breaks ground on new Thompsonville Road Interchange". Delaware State News. Dover. Archived from the original on October 18, 2015. Retrieved July 27, 2015.

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Special Committee on U.S. Route Numbering (October 7, 2003). "Report of the Special Committee on U.S. Route Numbering to the Standing Committee on Highways" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original (PDF) on October 16, 2017. Retrieved April 15, 2010.
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wboc.com

Lehman, Tom (July 10, 2018). "South Frederica Interchange Opens in Kent County". Salisbury, MD: WBOC-TV. Retrieved July 10, 2018.
Lehman, Tom (November 28, 2018). "Little Heaven Intersection Set to Finish Construction Next Year". Salisbury, MD: WBOC-TV. Retrieved November 28, 2018.
Lehman, Tom (March 4, 2019). "Little Heaven Intersection on Route 1 Makes Kent County Travel Easier". Salisbury, MD: WBOC-TV. Archived from the original on March 5, 2019. Retrieved March 4, 2019.
Curtis, Sean (May 16, 2024). "Five Points Roundabout Fully Opens". Salisbury, MD: WBOC-TV. Retrieved May 16, 2024.

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Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Archived from the original on September 24, 2012. Retrieved July 1, 2012.
"EZ Pass" (PDF). On the Road. No. 23. Delaware Department of Transportation. Summer 1999. p. 2. Archived from the original (PDF) on February 11, 2005. Retrieved April 5, 2017.
"State Route 1 Odessa to the Canal Overview". Internet Archives WayBack Machine. Delaware Department of Transportation. Archived from the original on June 24, 2003. Retrieved February 19, 2018.
Annual Report of the State Highway Department (PDF) (1925 ed.). Dover: Delaware State Highway Department. December 31, 1925. p. 17. Archived from the original (PDF) on September 23, 2015. Retrieved January 30, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1934 ed.). Dover: Delaware State Highway Department. January 1, 1935. pp. 9, 16, 39. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1933 ed.). Dover: Delaware State Highway Department. January 1, 1934. pp. 27, 40. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Annual Report of the State Highway Department of the State of Delaware (PDF) (1935 ed.). Dover: Delaware State Highway Department. January 7, 1936. p. 28. Archived from the original (PDF) on May 12, 2013. Retrieved October 22, 2014.
Annual Report of the State Highway Department (PDF) (1927 ed.). Dover: Delaware State Highway Department. December 31, 1927. p. 7. Archived from the original (PDF) on September 23, 2015. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1931 ed.). Dover: Delaware State Highway Department. December 31, 1931. p. 38. Archived from the original (PDF) on September 23, 2015. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1932 ed.). Dover: Delaware State Highway Department. December 31, 1932. p. 37. Archived from the original (PDF) on January 7, 2010. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1939 ed.). Dover: Delaware State Highway Department. January 1, 1940. p. 21. Archived from the original (PDF) on May 12, 2013. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1940 ed.). Dover: Delaware State Highway Department. January 1, 1941. pp. 5, 13. Archived from the original (PDF) on May 12, 2013. Retrieved October 30, 2014.
Annual Report of the State Highway Department (PDF) (1941-42 ed.). Dover: Delaware State Highway Department. July 1, 1942. p. 23. Archived from the original (PDF) on January 23, 2019. Retrieved November 17, 2014.
Report of the State Highway Department (PDF) (1954 ed.). Dover: Delaware State Highway Department. July 1, 1954. p. 12. Archived from the original (PDF) on September 23, 2015. Retrieved October 31, 2014.
Report of the State Highway Department (PDF) (1955 ed.). Dover: Delaware State Highway Department. July 1, 1955. p. 21. Archived from the original (PDF) on September 23, 2015. Retrieved October 31, 2014.
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whyy.org

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wikimedia.org

commons.wikimedia.org

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worldcat.org

search.worldcat.org

Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via Wikimedia Commons.