Delaware Route 100

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Brandywine Valley National Scenic Byway
Major junctions
South end DE 4 near Elsmere
Major intersections
North endSR 3100 at Pennsylvania border near Montchanin
Location
CountryUnited States
StateDelaware
CountiesNew Castle
Highway system
←
US 113

Delaware Route 100 (DE 100) is a state highway in New Castle County, Delaware. The route runs from DE 4 near Elsmere to the Pennsylvania border near Montchanin, where it continues into Pennsylvania as State Route 3100 (SR 3100, Chadds Ford Road). The road runs through suburban areas of northern New Castle County. The route intersects DE 2 in Elsmere before forming separate concurrencies with DE 48 and DE 141 from west of Wilmington north to Greenville. In Greenville, there is an interchange with DE 52. North of Greenville, DE 100 continues by itself to the Pennsylvania border, intersecting DE 92 in Montchanin. DE 100 was first designated in the 1930s to run from DE 52 to the Pennsylvania border, where it connected to Pennsylvania Route 100 (PA 100) until the southern terminus of that route was truncated away from the state line in 2003. By the 1970s, it was extended south to DE 4. The route was realigned to follow parts of DE 48 and DE 141 by 1990.

Route description

DE 100 north of DE 4 near Elsmere

DE 100 begins at an intersection with

Faulkland Road. Following this intersection, DE 100 passes to the east of a cemetery before coming to a junction with DE 48 south of the Cab Calloway School of the Arts and Charter School of Wilmington.[3][4]

DE 100 northbound in Montchanin

At this point, DE 100 turns northwest to form a concurrency with DE 48 on four-lane undivided Lancaster Pike, passing through business areas before crossing the East Penn Railroad at-grade. The road continues through residential and commercial areas, crossing Chestnut Run and widening into a divided highway as it comes to an intersection with DE 141. Here, DE 100 splits from DE 48 by turning northeast to join DE 141 on four-lane divided Centre Road. The road runs to the west of commercial areas, curving north past the Barley Mill Road intersection. The roadway curves northeast and passes under the East Penn Railroad before coming to a partial cloverleaf interchange with DE 52 in Greenville. This interchange has no access from DE 100/DE 141 southbound to DE 52 southbound or from DE 52 to DE 100/DE 141 northbound. Past this interchange, the road curves east, with DE 100 splitting from DE 141 at an at-grade intersection by heading north on two-lane undivided Montchanin Road. Montchanin Road heads south from this intersection to provide access to DE 52.[3][4]

Beginning of DE 100 southbound at the Pennsylvania border near Montchanin

DE 100 continues north through wooded areas with fields and homes, crossing the East Penn Railroad line again at-grade. The road runs through

Delaware Byway.[5][6]

DE 100 has an annual average daily traffic count ranging from a high of 43,842 vehicles at the DE 52 interchange along the DE 141 concurrency to a low of 2,126 vehicles at the Pennsylvania border.[1] The portions of DE 100 concurrent with DE 48 and DE 141 are part of the National Highway System.[7]

History

DE 100 northbound past DE 2 in Elsmere

The Dupont Road portion of the route was built in the 19th century by the

Delaware Scenic and Historic Highways system; it was designated a National Scenic Byway in 2005.[15] In 2003, the southern terminus of PA 100 was moved from the Delaware border to U.S. Route 202 north of West Chester. However, DE 100 remains unchanged.[16] On February 24, 2015, the bridge carrying DE 100 over the East Penn Railroad in Elsmere was closed after concrete fell from the bridge deck onto the railroad tracks below. Emergency repairs took place and the bridge was expected to be reopened by the end of March.[17][18]

Major intersections

The entire route is in New Castle County.

Locationmi[1]kmDestinationsNotes
Elsmere0.000.00 DE 4 (Maryland Avenue)Southern terminus
0.731.17 DE 2 (Kirkwood Highway) – Wilmington
Wilmington1.642.64
 DE 48 east (Lancaster Avenue)		South end of DE 48 overlap
2.674.30
 DE 48 west (Lancaster Pike) – Hockessin, Lancaster

 DE 141 south (Centre Road) – Newport		North end of DE 48 overlap; south end of DE 141 overlap
Greenville3.866.21 DE 52 – Greenville, WilmingtonInterchange; no access from southbound DE 100/DE 141 to southbound DE 52 or from DE 52 to northbound DE 100/DE 141
4.146.66
 DE 141 north (Barley Mill Road)

 Montchanin Road to DE 52		North end of DE 141 overlap
Montchanin6.2810.11
 DE 92 east (Thompson Bridge Road)		Western terminus of DE 92
8.9914.47SR 3100 north (Chadds Ford Road)Pennsylvania state line; northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

  1. ^ a b c Staff (2018). "Traffic Count and Mileage Report: Interstate, Delaware, and US Routes" (PDF). Delaware Department of Transportation. Retrieved March 29, 2020.
  2. ^ a b Delaware State Highway Department; The National Survey Co. (1938). Official Road Map of the State of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
  3. ^ a b c Delaware Department of Transportation (2017). Official Travel & Transportation Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved August 18, 2019.
  4. ^ a b c Google (February 6, 2011). "overview of Delaware Route 100" (Map). Google Maps. Google. Retrieved February 6, 2011.
  5. National Scenic Byways Program
    . Retrieved July 28, 2015.
  6. ^ "Brandywine Valley National Scenic Byway". Delaware Department of Transportation. Retrieved December 30, 2017.
  7. ^ National Highway System: Delaware (PDF) (Map). Federal Highway Administration. 2010. Retrieved February 10, 2012.
  8. ISBN 9781439645444
    . Retrieved December 23, 2016.
  9. ^ Delaware State Highway Department (1920). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
  10. ^ Delaware State Highway Department (1924). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
  11. ^ Delaware State Highway Department (1931). Official Road Map of the State of Delaware (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
  12. ^ Delaware State Highway Department (1932). Official Road Map (PDF) (Map). Dover: Delaware State Highway Department. Retrieved November 24, 2015.
  13. ^ Delaware Department of Highways and Transportation (1971). Delaware Highways Official Map (PDF) (Map). Dover: Delaware Department of Highways and Transportation. Retrieved November 24, 2015.
  14. ^ Delaware Department of Transportation (1990). Official State Map (PDF) (Map). Dover: Delaware Department of Transportation. Retrieved November 24, 2015.
  15. National Scenic Byways Program. Archived from the original
    on June 6, 2012. Retrieved January 8, 2012.
  16. ^ Petersen, Nancy (October 9, 2003). "Route 100 loses its way through West Chester". The Philadelphia Inquirer. Retrieved January 20, 2014.
  17. ^ "Rt. 100 Bridge closed in Elsmere after concrete falls". Philadelphia, PA: WPVI-TV. February 24, 2015. Retrieved March 8, 2015.
  18. ^ "Emergency Bridge Deck Repairs for the Bridge over East Penn Railroad Will Require a Portion of Route 100/DuPont Road to be Closed". Delaware Department of Transportation. February 24, 2015. Retrieved March 8, 2015.

External links

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