List of numbered roads in Durham Region

The numbered roads in the Regional Municipality of Durham account for about 832 kilometres (517 mi) of the county road system in the Canadian province of Ontario. The Durham Region Works Department owns and maintains the regional roads and regional highways, while the Ministry of Transportation of Ontario (MTO) owns and maintains the King's Highways in the region. The 67 (7 King's Highways, 4 Regional Highways, and 56 Regional Roads) numbered roads^{[note 1]} provide access to the entirety of the region. Highway 401 forms the backbone of the region, traveling from the western boundary of the region to the eastern boundary alongside Lake Ontario, and serving over 200,000 vehicles per day. Several provincially maintained highways existed in the region prior to 1998, when they were transferred to municipal government in the region as part of a province-wide downloading of highways. Where the regional tier of municipal government has since been responsible for these routes, they have been designated as Durham Regional Highways.

Network

Highway 401 passing through Oshawa, at an abandoned railway overpass east of Albert Street. This bridge, closed in 2001, was demolished in 2011.^[3]

The road network of the Regional Municipality of Durham consists of 832 kilometres (2,087 lane kilometres) of arterial roadway.^[4] There are 60 numbered roads, referred to mostly as Regional Roads, though four former King's Highways are referred to as Regional Highways, where they are now owned and maintained by the region.^[5]

In addition to the roads, there are 209 bridge and culvert structures currently maintained by the region.^[4] The region is not responsible for the bridges over and under Highway 401, Highway 407 and Highway 412 nor the bridges over and under Highway 35/115 or, all of which are maintained by the MTO. The region is also exempt from the construction and maintenance of bridges crossed by railway, but not from bridges which separate road and rail crossings.

History

The regional municipality of Durham was created in 1974 by the merger of portions of Durham and Ontario counties.^[6]

Structures

The Regional Municipality of Durham is responsible for the maintenance of both pavement as well as many structures that are over, under, or near the pavement. Bridges, culverts, and traffic signals are all built and maintained by the Works Department.

Services

Highway 35 / 115 from the overpass with Durham Regional Highway 2

The Durham Regional Police Service Traffic Enforcement unit handles enforcement of traffic laws, except on the King's Highways, which are patrolled by the Ontario Provincial Police. Speed limits on regional roads vary between 50 and 80 kilometres per hour. Police in Durham will generally not set speed traps, as the region encourages the safe flow of traffic, and punishes unsafe driving rather than speed limits.^[7] Maintenance and snow clearing is performed by the Durham Works Department. Five depots operate throughout the region in addition to the traffic operations centre in Whitby.^[8]

Numbered roads

Shield for Regional Highway 12

Regional Highways

Durham Regional Highways^[9]

Route	Name(s)	Western/Southern Terminus	Eastern/Northern Terminus	Length	Communities	Comments
Durham Regional Highway 2	Kingston Road Dundas Street West, King Avenue	Toronto–Durham boundary	Durham–Northumberland boundary	43 km (27 mi) [Map 1] [Map 2] [Map 3] [Map 4]	Pickering, Ajax, Whitby, Bowmanville, Newcastle	Formerly part of Highway 2, prior to January 1, 1998. Split into four sections; ends 800 meters east of Fothergill Court in Whitby, resumes at Regional Road 55 (Townline Road), and has two discontinuities in Clarington.[10]
Durham Regional Highway 12	Brock Street North, Baldwin Street	Regional Road 28 Rossland Road	Gatineau hydro corridor, south of Highway 7 (Highway 407 interchange)	4.8 km (3.0 mi)[Map 5]	Whitby, Brooklin	Formerly part of Highway 12, prior to January 1, 1998; continues north as Highway 12, south as Brock Street
Durham Regional Highway 47	Toronto Street South, Brock Street	Regional Road 30 (York–Durham Line)	Highway 7 / Highway 12	25.1 km (15.6 mi) [Map 6] [Map 7]	Goodwood, Uxbridge	Formerly part of King's Highway 47, prior to April 1, 1997. Continues west as Regional Road 40. Discontinuous between First Avenue/Marietta Street and Fourth Avenue in Uxbridge.
Durham Regional Highway 48	-	Highway 12	Durham–Kawartha Lakes boundary	6.6 km (4.1 mi)[Map 8]	Talbot	Formerly part of King's Highway 48. Continues east as Kawartha Lakes Road 48.

Shield for Regional Road 33

Regional Roads

Durham Regional Roads^[9]

Route[5]	Name(s)[5]	Western/Southern Terminus[11]	Eastern/Northern Terminus[11]	Length	Communities	Comments
Durham Regional Road 1	Brock Road, Main Street	Montgomery Park Road	Regional Road 32 (Ravenshoe Road)	46.2 km (28.7 mi) [Map 9] [Map 10]	Pickering, Uxbridge, Leaskdale, Udora
Durham Regional Road 2	Simcoe Street, Durham–Victoria Boundary Road	Harbour Road (former Durham Regional Road 62)	Brock Concession Road 14	49 km (30 mi) [Map 11] [Map 12]	Oshawa, Columbus, Raglan, Port Perry, Seagrave, Sonya, Manilla	Signed as Kawartha Lakes Road 2 between Seagrave and Manilla, where the road is maintained by the City of Kawartha Lakes under a boundary road agreement.[4][12] Used originally by the Mississauga Indians to get to Osler Marsh.[13] Later became the main highway to Port Perry, and was later extended to Beaverton.[14] In the 1840s, Abram Farewell proposed maintaining the road with tolls, which were ultimately never imposed.[15]
Durham Regional Road 2A	Brock Street West, Centre Street, Fairbanks Street	Regional Road 2 (Simcoe Street)	Regional Road 2 (Simcoe Street)	1.8 km (1.1 mi) [Map 13]	Oshawa
Durham Regional Road 3	Winchester Road, Grandview Street North, Columbus Road, Darlington Concession 8	Highway 7 / Highway 12 (Baldwin Street)	Regional Road 57 (Bowmanville Avenue)	19.8 km (12.3 mi) [Map 14]	Brooklin, Enniskillen
Durham Regional Road 4	Taunton Road	Regional Road 30 (York–Durham Line)	Highway 35 / Highway 115	48.1 km (29.9 mi) [Map 15]	Pickering, Ajax, Whitby, Oshawa, Clarington	Continues west as Steeles Avenue into Toronto
Durham Regional Road 5	Central Street, Pickering Concession 9, Myrtle Road, Raglan Road	Regional Road 30 (York–Durham Line)	Regional Road 2 (Simcoe Street)	24.4 km (15.2 mi) [Map 16]	Pickering, Claremont, Whitby, Oshawa
Durham Regional Road 6	Saintfield Road	Highway 7 / Highway 12	Regional Road 2 (Simcoe Street)	7.0 km (4.3 mi) [Map 17]	Seagrave
Durham Regional Road 7	Island Road	Highway 7A (Scugog Street)	Hood Road / Carnegie Beach Drive	11.5 km (7.1 mi) [Map 18]		Passes through the Mississaugas of Scugog Island First Nation reserve, and by the Great Blue Heron Casino.[16]
Durham Regional Road 8	Brock Street West, Main Street South, Reach Street	Regional Road 30 (York–Durham Line)	Regional Road 2 (Simcoe Street)	26.1 km (16.2 mi) [Map 19] [Map 20]	Uxbridge, Epsom, Port Perry, Ontario
Durham Regional Road 9	Ganaraska Road	Highway 35 / Highway 115	Durham–Northumberberland boundary	9.9 km (6.2 mi) [Map 21]	Kendal
Durham Regional Road 10	River Street	Regional Road 23 (Lakeridge Road)	Highway 7 / Highway 12	5.7 km (3.5 mi) [Map 22]	Sunderland
Durham Regional Road 11	Sandford Road	Regional Road 30 (York–Durham Line)	Regional Road 1	12.1 km (7.5 mi) [Map 23]	Sandford	Continues west into York Region as Herald Road and Green Lane
Durham Regional Road 12	Cameron Street	Regional Road 23 (Lakeridge Road)	Regional Road 2 (Simcoe Street)	7.1 km (4.4 mi) [Map 24]	Cannington
Durham Regional Road 13	Zephyr Road, Brock Concession 3	Regional Road 39	Road 2 (Simcoe Street)	24.5 km (15.2 mi) [Map 25] [Map 26]	Zephyr, Leaskdale
Durham Regional Road 14	Liberty Street	Highway 401	Regional Road 4	8.9 km (5.5 mi) [Map 27]	Bowmanville, Hampton
Durham Regional Road 15	Simcoe Street	Regional Road 23 (Osborne Street)	Durham–Victoria Boundary Road	8.7 km (5.4 mi) [Map 28]	Beaverton	Continues east as Kawartha Lakes Road 8 (Glenarm Road) in the City of Kawartha Lakes
Durham Regional Road 16	Ritson Road	Regional Road 60 (Wentworth Street)	Regional Road 3 (Winchester Road East)	11.3 km (7.0 mi) [Map 29]	Oshawa
Durham Regional Road 17	Mill Street, Main Street, Manvers Road	Highway 401	Regional Road 4 (Taunton Road)	6.3 km (3.9 mi) [Map 30] [Map 31]	Newcastle
Durham Regional Road 18	Newtonville Road	Highway 401	Regional Road 9 (Ganaraska Road)	11.9 km (7.4 mi) [Map 32]	Newtonville, Kendal
Durham Regional Road 19	Shirley Road	Regional Road 2 (Simcoe Street)	Regional Road 57	11.0 km (6.8 mi) [Map 33]
Durham Regional Road 20	Mosport Road, Boundary Road, Durham Road 20	Regional Road 57	Highway 35	12.5 km (7.8 mi) [Map 34]
Durham Regional Road 21	Church Street, Goodwood Road	Regional Highway 47 (Main Street)	Highway 7 / Highway 12	18.4 km (11.4 mi) [Map 35]	Goodwood, Utica, Manchester	Continues east as Highway 7A towards Port Perry
Durham Regional Road 22	Bayly Street, Victoria Street, Bloor Street	Regional Road 38 (Whites Road)	Regional Road 34 (Courtice Road)	29.9 km (18.6 mi) [Map 36]	Pickering, Ajax, Whitby, Oshawa
Durham Regional Road 23	Lakeridge Road, Osborne Street, Mara Road	Regional Road 22 (Bayly Street East / Victoria Street West)	Highway 12	74.4 km (46.2 mi) [Map 37]	Ajax, Whitby, Pickering, Vallentyne, Port Bolster, Beaverton	Lakeridge Road serves as a boundary line for three-quarters of the municipalities of Durham: Ajax, Pickering, and Uxbridge to the west; Whitby, Scugog, and Brock to the east.
Durham Regional Road 24	Church Street	Regional Road 22 (Bayly Street)	CN rail line bridge south of  Highway 401	1.0 km (0.62 mi) [Map 38]	Ajax	Regional Road 24 designation was retired from the CN Rail line towards  Regional Highway 2 (Kingston Road West) in 2015.
Durham Regional Road 25	Consumers Drive, Stellar Drive, Champlain Avenue	Brock Street	Regional Road 53 (Stevenson Road)	5.1 km (3.2 mi) [Map 39] [Map 40]	Whitby, Oshawa
Durham Regional Road 25A	Champlain Avenue	Regional Road 25 (Stellar Drive)	Regional Road 52 (Thornton Road)	1.7 km (1.1 mi) [Map 41]	Whitby, Oshawa
Durham Regional Road 26	Thickson Road	Regional Road 60 (Wentworth Street West)	Highway 7 / Highway 12	15.3 km (9.5 mi) [Map 42]	Whitby, Brooklin
Durham Regional Road 27	Altona Road	Regional Highway 2 (Kingston Road)	Regional Road 30 (York–Durham Line)	10.5 km (6.5 mi) [Map 43]	Pickering, Whitevale
Durham Regional Road 28	Rossland Road, Peter Matthews Drive (Future road segment)	Regional Road 43 (Cochrane Street)	Regional Road 33 (Harmony Road)	9.9 km (6.2 mi) [Map 44]	Whitby, Oshawa	Peter Matthews Drive is a future road segment in Pickering
Durham Regional Road 29	Liverpool Road	Regional Road 22 (Bayly Street)	Regional Road 37 (Finch Avenue)	2.0 km (1.2 mi) [Map 45]	Pickering
Durham Regional Road 30	York–Durham Line	Regional Road 40 /  Regional Highway 47	Regional Road 39 (Queensville Sideroad)	18.4 km (11.4 mi) [Map 46]	Stouffville, Mount Albert	Continues east as  Regional Road 39 (Scott Concession 3)
Durham Regional Road 31	Westney Road, 7th Concession	Regional Road 44 (Harwood Avenue)	Regional Road 1 (Brock Road)	18.7 km (11.6 mi) [Map 47]	Ajax, Greenwood
Durham Regional Road 33	Harmony Road	Regional Road 22 (Bloor Street East)	Regional Road 3 (Winchester Road East)	10.3 km (6.4 mi) [Map 48]	Oshawa
Durham Regional Road 34	Courtice Road, Enfield Road	Highway 401 / Service Road East	Regional Road 3	14.7 km (9.1 mi) [Map 49] [Map 50]	Courtice
Durham Regional Road 35	Wilson Road	Regional Road 22 (Bloor Street East)	Regional Road 4 (Taunton Road East)	6.2 km (3.9 mi) [Map 51]	Oshawa
Durham Regional Road 36	Hopkins Street, Anderson Street	Regional Road 25 (Consumers Drive)	Regional Road 28 (Rossland Road East)	3.7 km (2.3 mi) [Map 52]	Whitby
Durham Regional Road 37	Finch Avenue	Regional Road 27 (Altona Road)	Regional Road 1 (Brock Road)	5.8 km (3.6 mi) [Map 53]	Pickering
Durham Regional Road 38	Whites Road	Petticoat Creek Conservation Area	Highway 7	12.4 km (7.7 mi) [Map 54] [Map 55]	Pickering	Extended north to Highway 7 in February 2021 in order to have an interchange with Highway 407 as part of local development.
Durham Regional Road 39	Scott Concession 3, Durham Road 39	Regional Road 30 (York–Durham Line)	Regional Road 32 (Ravenshoe Road)	10.1 km (6.3 mi) [Map 56]	Zephyr	Continues south as  Regional Road 30 (York–Durham Line)
Durham Regional Road 40	Alexander Knox Road	Future road segment			Pickering	Future road segment in Pickering
Durham Regional Road 41	Salem Road	Regional Road 22 (Bayly Street)	Regional Road 4 (Taunton Road)	6.4 km (4.0 mi) [Map 57]	Ajax
Durham Regional Road 42	Darlington–Clarke Townline	Regional Highway 2 (King Street)	Regional Road 4 (Taunton Road)	8.1 km (5.0 mi) [Map 58]
Durham Regional Road 43	Cochrane Street	Dundas Street West	Regional Road 28 (Rossland Road West)	2.1 km (1.3 mi) [Map 59]	Whitby
Durham Regional Road 44	Harwood Avenue	Lake Driveway	Regional Highway 2 (Kingston Road)	4.7 km (2.9 mi) [Map 60]	Ajax
Durham Regional Road 45	Henry Street	Regional Road 22 (Victoria Street)	Dundas Street West	2.0 km (1.2 mi) [Map 61]	Whitby
Durham Regional Road 46	Brock Street South	Water Street	Highway 401	1.3 km (0.81 mi) [Map 62]	Whitby	Continues north as Durham Regional Highway 12
Durham Regional Road 47	Shore Line Road	Regional Road 23 (Mara Road)	Durham–Simcoe boundary	2.0 km (1.2 mi) [Map 63]
Durham Regional Road 50	Portage Road, Canal Road, Durham Road 50	Ontario Highway 12	Durham Regional Highway 48	5.2 km (3.2 mi) [Map 64]	Brock	Section from Regional Road 51 to just north of Trent-Severn Waterway was the Old Highway 12 before diverting to the west.
Durham Regional Road 51	Old Highway 12 / Talbot Road	Talbot River	Regional Road 50	0.190 km (0.118 mi) [Map 65]	Brechin, Ontario, Beaverton, Ontario	Continues south as Regional Road 50 and north as Simcoe County Road 51. Original route of Ontario Highway 12 over Talbot River before being re-routed to the west. Road ends where bridge crossing beyond Durham Region into Simcoe County.
Durham Regional Road 52	Phillip Murray Avenue, Boundary Road, Thornton Road	Regional Road 54 (Park Road)	Regional Road 4 (Taunton Road)	7.8 km (4.8 mi) [Map 66] [Map 67] [Map 68]	Oshawa, Whitby	Split into three sections; two sections are south of Highway 401 and the Canadian National Railway, while the northern section resumes on Thornton Road at Regional Road 25A (Champlain Avenue)
Durham Regional Road 53	Stevenson Road	Regional Road 52 (Phillip Murray Avenue)	Regional Road 28 (Rossland Road West)	6.4 km (4.0 mi) [Map 69]	Oshawa
Durham Regional Road 54	Park Road	Regional Road 52 (Phillip Murray Avenue)	Regional Road 28 (Rossland Road West)	6.4 km (4.0 mi) [Map 70] [Map 71]	Oshawa
Durham Regional Road 55	Townline Road	Regional Road 59 (Olive Avenue)	Regional Road 4 (Taunton Road)	5.2 km (3.2 mi) [Map 72]	Oshawa, Courtice
Durham Regional Road 56	Farewell Street	Approx. 220 m south of Harbour Road	Regional Road 22 (Bloor Street East)	1.8 km (1.1 mi) [Map 73]	Oshawa
Durham Regional Road 57	Waverley Road, Martin Road, Durham Road 57, New Scugog Road, Blackstock Road, Caesarea Road, Bowmanville Avenue	Highway 401	Durham–Kawartha Lakes boundary	41.9 km (26.0 mi) [Map 74] [Map 75]	Bowmanville, Blackstock, Caesarea	Continues east as Kawartha Lakes Road 57
Durham Regional Road 58	Manning Road, Adelaide Avenue	Brock Street	Regional Road 55 (Townline Road)	10.1 km (6.3 mi) [Map 76] [Map 77]	Whitby, Oshawa	Manning and Adelaide are separated at the Whitby–Oshawa boundary by the Mount Lawn Cemetery. Closing this gap is part of the Durham Region Transportation Master Plan.[4] There is also an environmental assessment underway for a planned eastern extension of Adelaide Avenue from  Regional Road 55 (Townline Road) to Trulls Road.[17]
Durham Regional Road 59	Gibb Street, Olive Avenue	Regional Road 52 (Thornton Road)	Regional Road 55 (Townline Road)	6.6 km (4.1 mi) [Map 78] [Map 79]	Whitby, Oshawa	Gibb Street and Olive Avenue are separated at Regional Road 2 (Simcoe Street). This corridor has been identified as a bottleneck and an environmental assessment is underway to determine a solution.[18]
Durham Regional Road 60	Wentworth Street	Regional Road 26 (Thickson Road South)	Regional Road 56 (Farewell Street)	5.5 km (3.4 mi) [Map 80] [Map 81]	Whitby, Oshawa	Wentworth Street is discontinuous between Stevenson Road and Park Road by the General Motors of Canada Oshawa Assembly Plant.

~

Notes

1. In Ontario, all roads are legally known as highways. However, Road is the more prevalent term for common use. The Regional Municipality of Durham Act (1990), though now superseded by the Ontario Municipal Act (2001), defines both synonymously.^[1] The Ontario Municipal Act defines a highway as any road, street or bridge that is not a Provincial Highway.^[2]

References

1. Regional Municipality of Durham Act, ss. 1, Government of Ontario, retrieved 2009-10-06
2. Ontario Municipal Act, ss. 1 (1), Government of Ontario, retrieved 2009-10-06
3. Highway 401 through Oshawa re-opened, Durham Region News, June 12, 2011, retrieved 2012-08-29
4. Planning Department, 2001 Durham Region Master Plan (PDF), Regional Municipality of Durham, p. 12, retrieved 2009-12-05
5. Works Department, Regional Roads, Regional Municipality of Durham, archived from the original on 2011-07-22, retrieved 2009-10-06
6. Ontario Back Road Atlas, MapArt, 2010, ISBN 978-1-55198-226-7
7. Works Department, Traffic speed control, Regional Municipality of Durham, retrieved 2009-12-05
8. Works Department, Depots, Regional Municipality of Durham, retrieved 2009-10-05
9. Regional Municipality of Durham, Regional Roads List, archived from the original on 2020-06-15, retrieved 2020-06-14
10. Commissioner of Works. The Regional Municipality of Durham Information Report (#2018-INFO-31) (PDF) (Report). Regional Municipality of Durham. Archived from the original (PDF) on 31 July 2019. Retrieved 23 July 2020.
11. MapArt (2010), Ontario Back Road Atlas, Peter Heiler Ltd., pp. 25, 31–32, 43
12. Kawartha Lakes Maintenance Priority Classification System, Policy 123-EPW-009, Schedule B and C (PDF), city of Kawartha Lakes Public Works department, November 29, 2005, pp. 1, 5, archived from the original (PDF) on July 26, 2011, retrieved 2009-11-30
13. Tracey Arial, Hiking in Ontario, 2005, p. 67
14. Thomas Griffith Taylor, Canada: A Study of Cool Continental Environments and Their Effect on British and French Settlement, 1950, p. 474
15. Leo A. Johnson, "Farewell, Abram", Dictionary of Canadian Biography Volume XI: 1881 to 1900, 1966, p. 311
16. Contact Information, Scugog First Nation, retrieved 2010-01-03
17. Works Department, Adelaide Avenue Extension Class EA (PDF), Regional Municipality of Durham, retrieved 2009-10-09
18. Works Department, Gibb Street / Olive Avenue Connection Analysis (PDF), Regional Municipality of Durham, retrieved 2009-10-09

Route maps

1. "Durham Regional Highway 2 (length and route of Toronto - Whitby section)" (Map). Google Maps. Retrieved 23 July 2020.
2. "Durham Regional Highway 2 (length and route of Oshawa - Bowmanville section)" (Map). Google Maps. Retrieved 23 July 2020.
3. "Durham Regional Highway 2 (length and route of Bowmanville - Newcastle section)" (Map). Google Maps. Retrieved 23 July 2020.
4. "Durham Regional Highway 2 (length and route of Newcastle - Port Hope section)" (Map). Google Maps. Retrieved 23 July 2020.
5. "Durham Regional Highway 12 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
6. "Durham Regional Highway 47 (length and route of western section)" (Map). Google Maps. Retrieved 23 July 2020.
7. "Durham Regional Highway 47 (length and route of eastern section)" (Map). Google Maps. Retrieved 23 July 2020.
8. NAVTEQ (2010). Durham Regional Highway 48 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
9. "Durham Regional Road 1 (length and route of southern section)" (Map). Google Maps. Retrieved 23 July 2020.
10. "Durham Regional Road 1 (length and route of northern section)" (Map). Google Maps. Retrieved 23 July 2020.
11. "Durham Regional Road 2 (length and route of section south of R.R. 6)" (Map). Google Maps. Retrieved 28 July 2020.
12. "Durham Regional Road 2 (length and route of section north of Hwy. 7)" (Map). Google Maps. Retrieved 28 July 2020.
13. NAVTEQ (2010). Durham Regional Road 2A (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
14. "Durham Regional Road 3 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
15. NAVTEQ (2009). Durham Regional Road 4 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
16. NAVTEQ (2010). Durham Regional Road 5 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
17. NAVTEQ (2010). Durham Regional Road 6 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
18. NAVTEQ (2010). Durham Regional Road 7 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
19. "Durham Regional Road 8 (length and route of western section)" (Map). Google Maps. Retrieved 23 July 2020.
20. "Durham Regional Road 8 (length and route of eastern section)" (Map). Google Maps. Retrieved 23 July 2020.
21. NAVTEQ (2010). Durham Regional Road 9 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
22. NAVTEQ (2009). Durham Regional Road 10 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
23. NAVTEQ (2010). Durham Regional Road 11 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
24. NAVTEQ (2010). Durham Regional Road 12 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
25. "Durham Regional Road 13 (length and route of western section)" (Map). Google Maps. Retrieved 23 July 2020.
26. "Durham Regional Road 13 (length and route of eastern section)" (Map). Google Maps. Retrieved 23 July 2020.
27. "Durham Regional Road 14 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
28. NAVTEQ (2010). Durham Regional Road 15 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
29. NAVTEQ (2010). Durham Regional Road 16 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
30. "Durham Regional Road 17 (length and route of southern section)" (Map). Google Maps. Retrieved 23 July 2020.
31. "Durham Regional Road 17 (length and route of northern section)" (Map). Google Maps. Retrieved 23 July 2020.
32. NAVTEQ (2010). Durham Regional Road 18 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
33. NAVTEQ (2010). Durham Regional Road 19 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
34. NAVTEQ (2010). Durham Regional Road 20 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
35. NAVTEQ (2010). Durham Regional Road 21 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
36. NAVTEQ (2010). Durham Regional Road 22 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
37. "Durham Regional Road 23 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
38. NAVTEQ (2010). Durham Regional Road 24 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
39. "Durham Regional Road 25 (length and route of western section)" (Map). Google Maps. Retrieved 22 July 2020.
40. "Durham Regional Road 25 (length and route of eastern section)" (Map). Google Maps. Retrieved 22 July 2020.
41. "Durham Regional Road 25A (length and route)" (Map). Google Maps. Retrieved 22 July 2020.
42. NAVTEQ (2010). Durham Regional Road 26 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
43. NAVTEQ (2010). Durham Regional Road 27 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
44. NAVTEQ (2010). Durham Regional Road 28 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
45. NAVTEQ (2010). Durham Regional Road 29 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
46. "Durham Regional Road 30 (length and route)" (Map). Google Maps. Retrieved 28 July 2020.
47. NAVTEQ (2010). Durham Regional Road 31 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
48. NAVTEQ (2010). Durham Regional Road 33 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
49. "Durham Regional Road 34 (length and route of southern section)" (Map). Google Maps. Retrieved 23 July 2020.
50. "Durham Regional Road 34 (length and route of northern section)" (Map). Google Maps. Retrieved 23 July 2020.
51. NAVTEQ (2010). Durham Regional Road 35 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
52. NAVTEQ (2010). Durham Regional Road 36 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
53. "Durham Regional Road 37 (length and route)" (Map). Google Maps. Retrieved 29 July 2020.
54. NAVTEQ (2010). Durham Regional Road 38 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
55. "Durham Regional Road 38 (Updated)" (Map). Google Maps. Retrieved 28 September 2021.
56. NAVTEQ (2010). Durham Regional Road 39 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2010-01-10.
57. "Durham Regional Road 41 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
58. NAVTEQ (2009). Durham Regional Road 42 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
59. NAVTEQ (2009). Durham Regional Road 43 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
60. NAVTEQ (2009). Durham Regional Road 44 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
61. NAVTEQ (2009). Durham Regional Road 45 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
62. NAVTEQ (2009). Durham Regional Road 46 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
63. NAVTEQ (2009). Durham Regional Road 47 (length and route) (Map). Cartography by NAVTEQ. Bing Maps.
64. NAVTEQ (2009). Durham Regional Road 50 (length and route) (Map). Cartography by NAVTEQ. Bing Maps.
65. "Durham Regional Road 51 (length and route)" (Map). Google Maps. Retrieved 23 July 2020.
66. "Durham Regional Road 52 (length and route of Phillip Murray Avenue section)" (Map). Google Maps. Retrieved 22 July 2020.
67. "Durham Regional Road 52 (length and route of Boundary Road section)" (Map). Google Maps. Retrieved 22 July 2020.
68. "Durham Regional Road 52 (length and route of Thornton Road section)" (Map). Google Maps. Retrieved 22 July 2020.
69. NAVTEQ (2009). Durham Regional Road 53 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
70. "Durham Regional Road 54 (length and route of southern section)" (Map). Google Maps. Retrieved 23 July 2020.
71. "Durham Regional Road 54 (length and route of northern section)" (Map). Google Maps. Retrieved 23 July 2020.
72. NAVTEQ (2009). Durham Regional Road 55 (length and route) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-17.
73. "Durham Regional Road 56 (length and route)" (Map). Google Maps. Retrieved 29 July 2020.
74. "Durham Regional Road 57 (length and route of Clarington - Blackstock section)" (Map). Google Maps. Retrieved 23 July 2020.
75. "Durham Regional Road 57 (length and route of Caesarea - Kawartha Lakes section)" (Map). Google Maps. Retrieved 23 July 2020.
76. "Durham Regional Road 58 (length and route of Manning Road section)" (Map). Google Maps. Retrieved 23 July 2020.
77. "Durham Regional Road 58 (length and route of Adelaide Avenue section)" (Map). Google Maps. Retrieved 23 July 2020.
78. "Durham Regional Road 59 (length and route of Gibb Street section)" (Map). Google Maps. Retrieved 23 July 2020.
79. "Durham Regional Road 59 (length and route of Olive Avenue section)" (Map). Google Maps. Retrieved 23 July 2020.
80. NAVTEQ (2009). Durham Regional Road 60 (length and route of eastern section) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-11.
81. NAVTEQ (2009). Durham Regional Road 60 (length and route of western section) (Map). Cartography by NAVTEQ. Bing Maps. Retrieved 2009-12-11.