This article lists all of thenumberedmunicipal roads inGreater Sudbury,Ontario. Municipal roads in Greater Sudbury are generally numbered with odd numbers for east-west routes and even numbers for north-south routes.

The city of Greater Sudbury is the only census division inNorthern Ontario that maintains a system of numbered municipal roads. County or municipal road systems otherwise exist only inSouthern Ontario; in the rest of the Northern region, provincially maintainedsecondary highways serve a similar function. Several of the city's municipal roads were also numbered as secondary highways prior to the creation of the current municipal road system in 1973.

Prior to the amalgamation of the current city of Greater Sudbury, the numbered road system was maintained by theRegional Municipality of Sudbury, and the roads were designated asregional, rather than municipal, roads.

Number	Names	Western/Southern Terminus	Eastern/Northern Terminus	Major Communities	Comments
Greater Sudbury Municipal Road 3	Bay Street	MR 4	MR 55	Whitefish	Crosses over but does not interchange withHighway 17, just east of the Highway 17/MR 55 intersection.
Greater Sudbury Municipal Road 4	Fairbank Lake Road	Highway 17	Intersection of Wickie Road and Park Road	Worthington	Travels through theghost town ofVictoria Mines; formerlyHighway 658.
Greater Sudbury Municipal Road 5	Spanish River Road	municipal boundary with township ofNairn and Hyman	MR 4 inWorthington	Turbine	An alternate route to MR 55 and Highway 17, also links MR 4 and MR 3 to Highway 17. At the western city limits, the roadway continues as McIntyre Street in Nairn Centre.
Greater Sudbury Municipal Road 8	Nickel Street, Third Avenue, Mine Road	Highway 144	Mine Road	Onaping,Levack	Main road into Onaping and Levack. FormerlyHighway 544 and Highway 544A.[1][2]
Greater Sudbury Municipal Road 10	Panache Lake Road	Panache North Shore Road	MR 55	Whitefish	FormerlyHighway 549
Greater Sudbury Municipal Road 12	Gordon Lake Road	MR 13	Highway 144	Larchwood	Gordon Lake Road (MR 12) ends atVermilion Lake Road (MR 13) near the Vermilion River bridge and continues south as a private road known as the Lockerby Mine Access Road to MR 3 near Whitefish.[3]
Greater Sudbury Municipal Road 13	Vermilion Lake Road, Joseph Street	Mina Street	Highway 144	Larchwood,Hull	Listed as Ontario's Worst Road in October 2007.[4]
Greater Sudbury Municipal Road 14	Errington Avenue, Main Street	Highway 144	MR 15	Chelmsford
Greater Sudbury Municipal Road 15	Municipal Road 15, Main Street	Intersection of Highway 144 and MR 35	MR 80	Chelmsford,Boninville,Blezard Valley,Val Caron	FormerlyHighway 634
Greater Sudbury Municipal Road 18	Montée Rouleau, Gagnon Street	MR 35	MR 15	Azilda
Greater Sudbury Municipal Road 21	Notre-Dame Street	MR 35	MR 35	Azilda	Travels through the community of Azilda
Greater Sudbury Municipal Road 24	Municipal Road 24, Main Street	MR 55	Highway 144	Lively	Passes by the ghost town ofCreighton Mine; formerlyHighway 536.
Greater Sudbury Municipal Road 30	Power Street, Godfrey Drive	MR 55	MR 32	Copper Cliff	The route formerly followed Clarabelle Mine Rd., which is owned and maintained byVale Inco. The road was closed to the public in the spring of 2007.[5]
Greater Sudbury Municipal Road 32	Balsam Street	MR 55	MR 30	Copper Cliff
Greater Sudbury Municipal Road 34	Big Nickel Mine Road	Interchange with MR 55	MR 35	Gatchell/Little Britain	Big Nickel is located on this road; effectively atwo-lane freeway as it has no intersections except its termini and the entrance toDynamic Earth. Listed on new eastbound signage on MR 55 as Big Nickel Road, it was previously known as LaSalle Boulevard in the late 70s and well into the 1980s. On May 7, 2004 the Big Nickel Mine Rd. bridge collapsed on a roadway below known as Lorne Street during the reconstruction of the bridge. No one was hurt in the incident.
Greater Sudbury Municipal Road 35	Elm Street	MR 55	Intersection ofHighway 144 and MR 15	Chelmsford,Azilda,Downtown	Former routing of Highway 144, until opening of the city's Northwest Bypass in 1986. HistoricMurray Mine site located on this road. A section of Municipal Road 35 between the eastern intersection of Notre-Dame Street (Municipal Road 21) in Azilda to Highway 144 in Chelmsford is currently a two-lane highway. There are plans to widen that section of highway, although no date has been announced.[6] Construction to widen Municipal Rd. 35 is set to begin in the fall of 2018.[7]
Greater Sudbury Municipal Road 37	Kelly Lake Road	Southview Drive	MR 55	Robinson
Greater Sudbury Municipal Road 38	Regent Street, Beatty Street	Intersection with MR 55 and MR 46	Intersection with MR 42 and MR 58	Little Britain	Basically an extension of MR 46 and MR 58
Greater Sudbury Municipal Road 39	Ramsey Lake Road	MR 80	Kirkwood Drive	south shore ofRamsey Lake	Science North is located near this road's western terminus at MR 80, whileLaurentian University is located near the eastern terminus.
Greater Sudbury Municipal Road 40	Martindale Road	Intersection of MR 40, MR 46 and MR 47	MR 55	Robinson	Basically an extension of MR 47
Greater Sudbury Municipal Road 42	Frood Road, Elm Street	MR 71	MR 67	Downtown/Donovan/Northern Heights	Has a briefconcurrency with MR 55; access road toFrood Mine. Briefly was the first original route ofHighway 547 from 1956 to 1960.
Greater Sudbury Municipal Road 43	Ontario Street, McLeod Street, Hyland Drive	MR 40	MR 46	Gatchell
Greater Sudbury Municipal Road 45	York Street	MR 46	MR 80	near downtown
Greater Sudbury Municipal Road 46	Regent Street	Interchange withHighway 69 (future Highway 400) andHighway 17	Intersection with MR 55 and MR 38	Lo-Ellen/Four Corners/Lockerby	Portion from the city / region limits to MR 55 (Lorne Street) was originallyOntario Highway 69 until it was downloaded to the Region in 1980.
Greater Sudbury Municipal Road 47	Walford Road	Intersection of MR 40 and MR 46	MR 80	Lockerby	Basically an extension of MR 40
Greater Sudbury Municipal Road 49	Lorne Street	MR 55	MR 35	Downtown	Former route of MR 55
Greater Sudbury Municipal Road 51	Larch Street	MR 67	MR 49	Downtown
Greater Sudbury Municipal Road 53	Cedar Street	MR 67	MR 49	Downtown
Greater Sudbury Municipal Road 55	Old Highway 17, Lorne Street, Douglas Street, Brady Street, Lloyd Street,The Kingsway	Highway 17, west ofWhitefish	Highway 17, 3 km west ofConiston	Whitefish,Naughton,Lively,Copper Cliff,Gatchell,Downtown,Minnow Lake,Coniston	Former alignment of Highway 17. Surrendered this designation in Walden with the construction of freeway alignment in the early 1980s, and in the old city of Sudbury when theSoutheast Bypass was constructed in 1995. Is adual carriageway for part of its length.
Greater Sudbury Municipal Road 57	Van Horne Street	MR 80	MR 67	Downtown
Greater Sudbury Municipal Road 58	Kathleen Street	Intersection of MR 42 and MR 38	MR 80	Donovan/Flour Mill	Basically an extension of MR 38
Greater Sudbury Municipal Road 61	Ste-Anne Road	Intersection of Mackenzie Street and MR 67	MR 80	Downtown
Greater Sudbury Municipal Road 63	College Street	Intersection of 35/55	MR 58	Downtown
Greater Sudbury Municipal Road 66	Barry Downe Road	MR 55	MR 73	New Sudbury
Greater Sudbury Municipal Road 67	Elgin Street, Morris Street, Howey Drive, Bellevue Avenue, Bancroft Drive, Allan Street, Government Road, East Street, Birch Street	Intersection with MR 55 and MR 61	Highway 17	Downtown,Brodie,Minnow Lake,Adamsdale,Coniston
Greater Sudbury Municipal Road 68	Auger Avenue	MR 86	MR 71	New Sudbury
Greater Sudbury Municipal Road 70	Bancroft Drive	MR 67	MR 55	Minnow Lake	Bancroft Drive continues as MR 67 from Bellevue Avenue to Allan Street in Coniston.
Greater Sudbury Municipal Road 71	LaSalle Boulevard	Interchange with MR 35	MR 86	New Sudbury	West of Lorraine Avenue, westbound traffic continues at a loop ramp interchange where MR 73, Maley Drive transitions to LaSalle Boulevard while eastbound traffic splits where MR 86 Maley Drive begins nearCollège Boréal. Phase 2 construction of Maley Drive will see LaSalle Boulevard as a 4 laned undivided expressway from west of a roundabout at the entrance toCollège Boréal to the interchange with MR 35 Elm Street. Big Nickel Mine Road was previously a western extension of LaSalle Boulevard in the late 70s well into the 1980s.
Greater Sudbury Municipal Road 72	Second Avenue	MR 67	Intersection of MR 55 and MR 86	Minnow Lake	Continues as MR 86
Greater Sudbury Municipal Road 73	Maley Drive	Interchange with MR 71	MR 86	New Sudbury	Turns into MR 71 east ofCollège Boréal where westbound LaSalle Boulevard traffic enters at an interchange in a loop ramp and eastbound traffic splits where Maley Drive begins. Maley Drive is a 4 lane dividedfreeway at the LaSalle Boulevard split interchange to a roundabout with MR 66 and continues as a 4 lane dividedexpressway to a roundabout with Lansing Avenue.
Greater Sudbury Municipal Road 74	Moonlight Beach Road	MR 67	MR 55	Adamsdale
Greater Sudbury Municipal Road 80	Long Lake Road, Paris Street, Notre-Dame Avenue (Sudbury), Old Highway 69, Notre-Dame Avenue (Hanmer), Côté Boulevard	Intersection of Dew Drop Road and Tilton Lake Road	MR 85	Four Corners, Downtown,Val Caron,Val Thérèse,Hanmer	Route from intersection with MR 55 north to Capreol Road was formerly part of Ontario Highway 69. It was downloaded to the Region in the early 1980s. The Long Lake Road portion (from Four Corners to Dew Drop Road) was once Highway 543.
Greater Sudbury Municipal Road 84	Capreol Road, Sellwood Avenue, Milnet Road	MR 80	Dead-end in the woods at theGreater Sudbury/Sudbury District border	Hanmer,Capreol,Sellwood	The ghost town ofMilnet can easily be reached by turning onto a sideroad and driving for roughly 1 km. Part from Milnet to Sellwood Mine was part ofHighway 806, and the rest of the road was part of former Highway 543.
Greater Sudbury Municipal Road 85	Radar Road	MR 86	MR 80	Hanmer
Greater Sudbury Municipal Road 86	Falconbridge Highway, Skead Road	Intersection of MR 55 and 72	Skead	New Sudbury,Garson,Skead	Has an old diversion (Old Skead Road). Continues as MR 72.Sudbury Airport is located on this road. FormerlyHighway 541.
Greater Sudbury Municipal Road 88	Elmview Drive	MR 80	Dominion Drive	Hanmer
Greater Sudbury Municipal Road 89	Longyear Drive	MR 86	Edison Road	Falconbridge	FormerlyHighway 541A
Greater Sudbury Municipal Road 90	Garson-Coniston Road	Highway 17	MR 86	Garson,Coniston
Greater Sudbury Municipal Road 93	Second Avenue	MR 67	Highway 17	Coniston
Greater Sudbury Municipal Road 96	Desmarais Road	MR 80	Intersection with Nelson Lake Road and Frenchman Lake Road	Val Thérèse
Greater Sudbury Municipal Road 97	Capreol Lake Road	MR 84	Intersection of 4th Fire Road, 5th Fire Road, and 6th Fire Road, half-way betweenCapreol and theWahnapitae 11 Indian Reserve	Capreol
Greater Sudbury Municipal Road 537	Greater Sudbury Road 537	Highway 537 at Finni Road	Highway 17	Wahnapitae	Formerly part ofHighway 537.

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