Delaware Route 100

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Delaware Route 100 marker

Delaware Route 100
Route information
Maintained by DelDOT
Length: 8.97 mi[1] (14.44 km)
Tourist
routes:
Brandywine Valley National Scenic Byway
Major junctions
South end: DE 4 near Elsmere
  DE 2 in Elsmere
DE 34 near Elsmere
DE 48 near Wilmington
DE 141 near Wilmington
DE 52 in Greenville
DE 92 in Montchanin
North end: SR 3100 at Pennsylvania border near Montchanin
Location
Counties: New Castle
Highway system

Routes in Delaware

I‑95 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. It intersects with DE 2 in Elsmere and DE 34 north of 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 originally connected to Pennsylvania Route 100 (PA 100). 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[edit]

DE 100 southbound approaching the intersection where it turns from DE 141 southbound to DE 48 eastbound

DE 100 begins at an intersection with DE 4 southwest of Wilmington, heading north on the one-way pair of Race Street northbound and South Dupont Road southbound. The one-way pair, which carries two lanes in each direction, passes through suburban residential areas. Both directions of the route join, with the route heading northwest as South Dupont Road, a four-lane divided highway. DE 100 passes more homes before curving north and entering Elsmere, where it runs through industrial areas and comes to a bridge over CSX's Philadelphia Subdivision. A short distance later, the route crosses DE 2 and becomes North Dupont Road before running through more commercial areas as an undivided road and coming to a bridge over an East Penn Railroad line. The road runs through wooded residential areas, leaving Elsmere and becoming South Dupont Road. The route reaches an intersection with the eastern terminus of DE 34. Following this intersection, DE 100 runs between a cemetery to the west and homes to the east before reaching an intersection with DE 48.[2][3]

At this point, DE 100 turns northwest to form a concurrency with DE 48 on four-lane undivided Lancaster Pike, passing between businesses to the north and the cemetery to the south before crossing the East Penn Railroad. The road continues through residential and commercial areas, 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 passes through industrial areas, curving north and becoming a freeway past the Barley Mill Road intersection. The freeway curves northeast and passes under the East Penn Railroad before coming to a partial cloverleaf interchange with DE 52 in Greenville. Past this interchange, the road curves east and the freeway ends, with DE 100 splitting from DE 141 at an at-grade intersection by heading north on two-lane undivided Montchanin Road.[2][3]

DE 100 continues north through wooded areas of residences and fields, crossing the East Penn Railroad line again. The road runs through Montchanin and passes to the east of the Wilmington Country Club and the Winterthur Museum and Country Estate before crossing the railroad tracks again. The route heads through fields, intersecting the western terminus of DE 92 on the western edge of Brandywine Creek State Park. At this point, the road continues straight as DE 92, with DE 100 turning north to remain on Montchanin Road. The road heads through areas of fields and woods with some homes, crossing under the East Penn Railroad again and curving northwest. DE 100 curves to the north again before reaching its northern terminus at the Pennsylvania border, where the road continues into that state as SR 3100 (Chadds Ford Road).[2][3] The Montchanin Road portion of DE 100 is part of the Brandywine Valley National Scenic Byway, a National Scenic Byway and Delaware Byway.[4][5]

DE 100 has an annual average daily traffic count ranging from a high of 41,949 vehicles at the Barley Mill Road intersection along the DE 141 concurrency to a low of 2,040 vehicles at the Pennsylvania border.[1] None of DE 100 is part of the National Highway System.[6]

History[edit]

By 1920, what is now DE 100 existed as a county road.[7] The route north of Kennett Pike was proposed as a state highway by 1924.[8] The route was paved by 1931.[9] By 1932, the state highway had been completed from Elsmere north to the Kennett Pike while the remainder was still a county route.[10] When Delaware assigned state highways numbers by 1936, the road remained unnumbered.[11] By 1938, DE 100 was designated to run from DE 52 in Greenville north to the Pennsylvania border, where it continued as PA 100.[12] DE 100 was extended south to DE 4 by 1971, following Dupont Road.[13] The route was realigned to bypass a portion of Dupont Road by following DE 48 and DE 141 by 1990.[14] In 2003, PA 100 was truncated in Pennsylvania. However, DE 100 remains unchanged.[15]

Major intersections[edit]

The entire route is in New Castle County.

Location Mile[1] km Destinations Notes
Elsmere 0.00 0.00 DE 4 (Maryland Avenue) Southern terminus
0.73 1.17 DE 2 (Kirkwood Highway) – Wilmington
1.41 2.27 DE 34 west (Faulkland Road)
Wilmington 1.64 2.64 DE 48 east (Lancaster Avenue) South end of DE 48 overlap
2.67 4.30 DE 48 west (Lancaster Pike) / DE 141 south (Centre Road) – Hockessin, Newport North end of DE 48 overlap, south end of DE 141 overlap
Greenville 3.86 6.21 DE 52 (Kennett Pike) – Greenville, Wilmington Interchange
4.12 6.63 DE 141 north (Barley Mill Road) North end of DE 141 overlap
Montchanin 6.26 10.07 DE 92 east (Thompson Bridge Road)
8.97 14.44 SR 3100 north (Chadds Ford Road) Pennsylvania state line, northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

References[edit]

  1. ^ a b c Staff (2011). "Traffic Count and Mileage Report: Interstate, Delaware, and US Routes" (PDF). Delaware Department of Transportation. Retrieved May 17, 2012. 
  2. ^ a b c Delaware Department of Transportation (2008) (PDF). Delaware Official Transportation Map (Map) (2008 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_083.pdf. Retrieved March 22, 2012.
  3. ^ a b c Google Inc. "overview of Delaware Route 100". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&source=s_d&saddr=DE+4+and+DE+100&daddr=39.7679519,-75.5977773+to:montchanin+road+and+creek+road&geocode=FcM5XgIdXqx--ymlQ7RBeALHiTFLLzCTje_fKg%3BFY_PXgIdL3h--ym3LpTcyf3GiTEielZ9e9n_6A%3BFRLdXwIdnnV--ymrIcuPwPvGiTFyWzwkJkuADg&hl=en&mra=dpe&mrcr=0&mrsp=1&sz=12&via=1&sll=39.783275,-75.59132&sspn=0.120308,0.338173&ie=UTF8&t=h&z=12. Retrieved February 6, 2011.
  4. ^ "Brandywine Valley Scenic Byway". National Scenic Byways Program. Retrieved January 7, 2012. 
  5. ^ "Brandywine Valley Byway". Delaware Department of Transportation. Retrieved January 8, 2012. 
  6. ^ Federal Highway Administration (2010) (PDF). National Highway System: Delaware (Map). http://www.fhwa.dot.gov/planning/nhs/maps/de/de_delaware.pdf. Retrieved February 10, 2012.
  7. ^ Delaware State Highway Department (1920) (PDF). Official Road Map (Map) (1920 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_002.pdf. Retrieved March 22, 2012.
  8. ^ Delaware State Highway Department (1924) (PDF). Official Road Map (Map) (1924 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_003.pdf. Retrieved March 22, 2012.
  9. ^ Delaware State Highway Department (1931) (PDF). Official Road Map of the State of Delaware (Map) (1931 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_005.pdf. Retrieved March 22, 2012.
  10. ^ Delaware State Highway Department (1932) (PDF). Official Road Map (Map) (1932 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_006.pdf. Retrieved March 22, 2012.
  11. ^ Delaware State Highway Department (1936) (PDF). Official Road Map of the State of Delaware (Map). Cartography by The National Survey Co. (1936–37 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_008.pdf. Retrieved March 22, 2012.
  12. ^ Delaware State Highway Department (1938) (PDF). Official Road Map of the State of Delaware (Map). Cartography by The National Survey Co. (1938 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_010.pdf. Retrieved March 22, 2012.
  13. ^ Delaware Department of Highways and Transportation (1971) (PDF). Delaware Highways Official Map (Map) (1971 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_050.pdf. Retrieved March 22, 2012.
  14. ^ Delaware Department of Transportation (1990) (PDF). Official State Map (Map) (1990 ed.). http://www.deldot.gov/archaeology/historic_pres/historic_highway_maps/pdf/cd_070.pdf. Retrieved March 22, 2012.
  15. ^ Petersen, Nancy (October 9, 2003). "Route 100 loses its way through West Chester". The Philadelphia Inquirer. Retrieved January 20, 2014. 

External links[edit]

Route map: Google / Bing