County Routes by Municipality
County Routes and Roadways
The Somerset County Department of Public Works maintains arterial and collector roadways as part of the surface transportation system for users traveling within and through Somerset County. The routes and roadways maintained by Somerset County cross all of the 21 municipalities in the County. To better identify these roadways that are under Somerset County Jurisdiction, road descriptions within each municipality are provided below. All roadways not listed here are maintained by local municipal public works agencies or the New Jersey Department of Transportation.
Please refer to the lists below to help verify Somerset County jurisdiction for maintenance of roadway or when evaluating locations in need of County permits.
Roadways under the jurisdiction of Somerset County within Bedminster Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
512 |
Pottersville Road |
Hunterdon County Corp. Line |
Peapack & Gladstone Borough Line (West Of Route 206) |
|
512 |
Peapack Road |
NJ Transit/Conrail Railroad, Peapack & Gladstone Borough Line |
Far Hills Borough Line |
|
523 |
Lamington Road, Main Street |
Lamington River, Hunterdon County Corp. Line |
State Highway Route 202, Somerville Road, Hillside Avenue |
|
620 |
Burnt Mills Road, Washington Valley Road |
Rattlesnake Bridge Road CR 665 |
Mount Prospect Road, Bridgewater Township Line |
|
641 |
Cowperthwaite Road |
Lamington River, Branchburg Township Line |
Burnt Mills Road CR 620 |
|
652 |
Schley Mountain Rd |
Route I287 Northbound Ramp |
Bernards Township Line |
|
665 |
Rattlesnake Bridge Road |
Lamington River, Branchburg Township Line |
Lamington Road CR 523 |
Roadways under the jurisdiction of Somerset County within Bernards Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
512 |
Liberty Corner Road, Church Street, Valley Road |
Douglas Road |
Morris County Corporate Line |
|
525 |
Martinsville Liberty Corner Rd, Mount Airy Road |
Bridgewater Township Line |
West Oak Street CR 624, Pill Hill Road, Bernardsville Borough Line |
|
613 |
Stonehouse Road, South Finley Avenue, North Finley Avenue |
Valley Road CR 512 |
Bernardsville Borough Line |
|
624 |
West Oak Street, East Oak Street |
Mount Airy Road CR 525 |
South Maple Avenue CR 657 |
|
640 |
Lyons Road, South Finley Avenue |
Church Street CR 512 |
Stonehouse Road CR 613 |
|
651 |
King George Road |
Warren Township Line (North Of Route 78) |
Valley Road CR 512 |
|
652 |
Allen Road |
Bedminster Township Line |
Martinsville Liberty Corner Rd CR 525 |
|
657 |
South Maple Avenue |
Passaic River, Morris County Corporate Line |
East Oak Street CR 624 |
Roadways under the jurisdiction of Somerset County within Bernardsville Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
525 |
Mount Airy Road |
West Oak Street CR 624, Pill Hill Road, Bernards Township Line |
State Highway Route 202 |
|
525 |
Claremont Road, Mendham Road |
State Highway Route 202 |
Morris County Corporate Line |
|
613 |
North Finley Avenue |
Bernards Township Line |
State Highway Route 202 |
|
613 |
Childs Road |
State Highway Route 202 |
Bernards Township Line |
|
659 |
Claremont Road, Turnbull Lane, Dryden Road |
Mendham Road CR 525 |
Morris County Corporate Line |
Roadways under the jurisdiction of Somerset County within Bound Brook Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
525 |
Thompson Avenue |
West Union Avenue, State Highway Route 28 |
Bridgewater Township Line |
|
527 |
(South & East) Main Street, Mountain Avenue |
Raritan River, South Bound Brook Borough Line |
Bridgewater Township Line (North Of Route 22) |
|
533 |
Talmage Avenue, Columbus Place, Main Street (East) |
Middle Brook, Bridgewater Township Line |
The Bound Brook, Middlesex County Corp. Line |
|
635 |
Vosseller Avenue |
Talmage Avenue CR 527 |
State Highway Route 28 (Union Avenue) |
|
654 |
East High Street, Veterans Memorial Drive |
East Street CR 689 |
East Main Street CR 533 |
|
687 |
Tea Street |
Talmage Avenue CR 527 |
State Highway Route 28 |
|
689 |
Bolmer Blvd, East Street |
Main Street CR 527 & CR 533 |
State Highway Route 28 |
Roadways under the jurisdiction of Somerset County within Branchburg Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
567 |
Pickett Place, Pleasant Run Road, South Branch Road, Old York Road |
South Branch Of Raritan River, Hillsborough Township Line |
North Branch Of Raritan River, Bridgewater Township Line |
|
606 |
Studdiford Drive |
South Branch Road CR 567 |
South Branch Of Raritan River, Hillsborough Township Line |
|
614 |
Easton Turnpike |
State Highway Route 22 |
North Branch Of Raritan River, Bridgewater Township Line |
|
629 |
Pleasant Run Road |
South Branch Road CR 567 |
Hunterdon County Corp. Line |
|
637 |
Old York Road, Dreahook Road, Readington Road, Raritan Valley College Drive |
South Branch Road, Old York Road CR 567 |
Easton Turnpike CR 614 |
|
641 |
Burnt Mill Road |
Easton Turnpike CR 614 |
Lamington River, Bedminster Township Line |
|
646 |
Chubb Way |
State Highway Route 202 |
South Branch Road CR 567 |
|
665 |
Lamington Road |
Easton TurnpikeCR 614 |
Lamington River, Bedminster Township Line |
|
667 |
Elm Street, Maple Avenue, Pleasant Run Road |
South Branch Of Raritan River, Hillsborough Township Line |
Pleasant Run Road, Picket Place CR 567 |
|
679 |
Station Road |
Readington Road CR 637 |
Easton Turnpike CR 614 |
Roadways under the jurisdiction of Somerset County within Bridgewater Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
525 |
Thompson Avenue, Chimney Rock Road, Washington Valley Road, Mount Horeb Road, |
Bound Brook Borough Line |
Bernards/Warren Township Line |
|
527 |
Mountain Avenue |
Bound Brook Borough Line (South Of Hawthorne Ave) |
Warren Township Line, Greenbrook Township Line |
|
533 |
Finderne Avenue, Main Street |
Raritan River, Manville Borough Line |
Middle Brook, Bound Brook Borough Line |
|
567 |
Old York Road |
North Branch Of Raritan River, Branchburg Township Line |
Raritan Township Line |
|
612 |
Main Street |
South & North Adamsville Road, Somerville Borough Line |
Finderne Avenue CR 533 & CR 633 |
|
614 |
Easton Turnpike |
North Branch Of Raritan River, Branchburg Township Line |
State Highway Route 22 Ramps |
|
616 |
Washington Valley Road |
Chimney Rock Road CR 525 |
Dock Watch Hollow Brook, Warren Township Line |
|
620 |
Washington Valley Road |
Mount Prospect Road, Bedminster Township Line |
Mt. Horeb Road CR 525 |
|
633 |
Finderne Avenue |
Main Street CR 527 & CR 612 |
State Highway Route 22 |
|
639 |
North Bridge Street, Foothill Road |
State Highway Route 22 |
State Highway Route 206 |
|
673 |
Vogt Drive |
North Gaston Avenue (North Of Route 22) |
North Bridge Street CR 639 |
|
675 |
Polhemus Lane, Chimney Rock Road |
End Of Road |
Thompson Avenue CR 525 |
|
683 |
Foothill Road |
Main Street CR 527 |
Chimney Rock Road CR 675 |
|
685 |
Promenade Boulevard |
Main Street CR 527 |
State Highway Route 28 |
Roadways under the jurisdiction of Somerset County within Far Hills Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
512 |
Peapack Road |
Bedminster Township Line |
State Highway Route 202 |
|
512 |
Far Hills Road |
State Highway Route 202 |
Douglas Road |
Roadways under the jurisdiction of Somerset County within Franklin Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
514 |
Amwell Road, Hamilton Street |
Millstone River, Millstone Borough Line |
Middlesex County Corp. Line |
|
518 |
Georgetown & Franklin Turnpike |
Millstone River, Rocky Hill Borough Line |
State Highway Route 27, Middlesex County Corp. Line |
|
527 |
Easton Avenue |
Middlesex County Corp. Line, Franklin Blvd, Landing Lane |
South Bound Brook Borough Line |
|
603 |
Laurel Avenue, Kingston-Rocky Hill Road |
State Highway Route 27, Middlesex County Corp. Line |
Belle Mead-Griggstown Road CR 518, Canal Road |
|
607 |
Old Road |
State Highway Route 27 |
End Of Road (Dead End North Of Andover Road CR 656) |
|
615 |
South Middlebush Road |
State Highway Route 27, Middlesex County Corp. Line |
Amwell Road CR 514 |
|
617 |
Franklin Boulevard, Landing Lane |
State Highway Route 27, Middlesex County Corp. Line |
Raritan River, Middlesex County Corp. Line |
|
619 |
Cedar Grove Lane |
Amwell Road CR 514 |
Easton Avenue CR 527 |
|
621 |
Elizabeth Avenue |
Amwell Road CR 514 |
South Bound Brook Borough Line |
|
623 |
Manville Causeway, Weston Canal Road |
Millstone River, Franklin Township Line |
South Bound Brook Borough Line (Near Edgewood Terrace CR 610) |
|
623 |
Canal Road |
Franklin Township Line (Near Edgewood Terrace CR 610) |
Main Street CR 527 |
|
632 |
Griggstown Causeway, Canal Road, Bunker Hill Road |
Millstone River, Montgomery Township Line |
State Highway Route 27, Middlesex County Corp. Line |
|
648 |
Claremont Road |
South Middlebush Road CR 615 |
State Highway Route 27, Middlesex County Corp. Line |
|
656 |
Andover Drive |
State Highway Route 27 |
Old Road CR 607 |
|
658 |
Blackwells Mills Road |
Millstone River, Hillsborough Township Line |
Canal Road |
|
691 |
South Middlebush Road Extension |
South Middlebush Road CR 615 |
End Or Road (Dead End Near Church) |
Roadways under the jurisdiction of Somerset County within Green Brook Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
527 |
Mountain Avenue |
Bridgewater Township Line |
Warren Township Line (South Of Scheurman Terrace) |
|
529 |
Washington Avenue |
The Green Brook, Middlesex County Corp. Line |
Rock Road West |
|
634 |
Greenbrook Road, Warrenville Road, Greenbrook Road |
Sebrings Mills Road |
Rock Avenue CR 645, North Plainfield Borough Line |
|
645 |
Rock Avenue |
The Green Brook, Union County Corporate Line |
State Highway Route 22 |
|
651 |
Warrenville Road |
The Green Brook, Middlesex County Corp. Line |
Warren Township Line |
Roadways under the jurisdiction of Somerset County within Hillsborough Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
514 |
Amwell Road |
Hunterdon County Corp. Line, Rainbow Hill Road - Clover Hill Road |
Millstone Borough Line |
|
533 |
Millstone River Road |
Township Line Road, Montgomery Township Line |
Millstone Borough Line |
|
533 |
Millstone River Road |
Millstone Borough Line |
Schmidt Street, Manville Borough Line |
|
533BP |
Somerset Courthouse Road |
Millstone Borough Line, Hamilton Road |
Millstone River Road (Cr533) |
|
567 |
River Road, Picket Place |
Amwell Road CR 514 |
South Branch Of Raritan River, Branchburg Township Line |
|
606 |
Studdiford Drive |
South Branch Of Raritan River, Branchburg Township Line |
River Road CR 625 |
|
608 |
Dukes Parkway East |
State Highway Route 206 |
Manville Borough Line (East Of Dickerson Rd) |
|
625 |
Marshall Road, South Branch Road, River Road |
Amwell Road CR 514 |
Raritan River, Raritan Borough Line |
|
627 |
New Centre Road |
South Branch Road CR 567 |
Roycefield Road |
|
650 |
Schilke Lane |
End Of Road (Dead End West Of Amsterdam Dr) |
Millstone Borough Line |
|
658 |
Blackwells Mills Road |
Millstone River Road CR 533 |
Millstone River, Franklin Township Line |
|
660 |
Byara Court |
Amwell Road CR 514 |
Dead End Near Route 206 Bypass |
|
662 |
Brower Lane |
Dead End Near Route 206 Bypass |
Dead End East Of Royce Brookroad |
|
667 |
Elm Street |
River Road CR 567 |
South Branch Of Raritan River, Branchburg Township Line |
|
677 |
East Mountain Road |
Amwell Road CR 514 |
South Branch Road CR 625 |
|
681 |
Amsterdam Drive |
Schilke Lane CR 650 |
Amwell Road CR 514 |
|
693 |
Service Road |
Amwell Road CR 514 |
Brower Lane CR 662 |
Roadways under the jurisdiction of Somerset County within Manville Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
533 |
(South & North) Main Street |
Schmidt Street, Hillsborough Township Line |
Raritan River, Bridgewater Township Line |
|
608 |
Dukes Parkway East |
Hillsborough Township Line |
North Main Street CR 533 |
|
623 |
Wilhouski Street, Manville Causeway |
South Main Street CR 533 |
Millstone River, Franklin Township Line |
Roadways under the jurisdiction of Somerset County within Millstone Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
514 |
Millstone Bypass, Amwell Road |
Hillsborough Township Line |
Millstone River, Franklin Township Line |
|
533 |
Main Street |
Hillsborough Township Line |
Hillsborough Township Line (Near Beardslee Road) |
|
533BP |
Millstone River Road |
Millstone Bypass (CR 514) |
Hillsborough Township Line, Hamilton Road |
|
650 |
Amwell Road |
Hillsborough Township Line |
Main Street CR 533 |
Roadways under the jurisdiction of Somerset County within Montgomery Township. Montgomery map.
|
Route Number |
Local Road Name(s) |
From |
To |
|
518 |
Georgetown & Franklin Turnpike |
Mercer County Corp. Line, Province Line Road |
Rocky Hill Borough Line |
|
533 |
Orchard Road, River Road |
State Highway Route 206 |
Township Line Road, Hillsborough Township Line |
|
601 |
Great Road, Belle Mead Blawenburg Road, Trent Place |
Cherry Valley Road, Mercer County Corp. Line |
State Highway Route 206 |
|
602 |
Campmeeting Avenue, Skillman Road |
Conrail Railroad Right Of Way |
Belle Mead Blawenburg Road CR 601 |
|
604 |
Dutchtown Harlingen Road |
Belle Mead Blawenburg Road CR 601 |
State Highway Route 206 (Van Horne Road) |
|
605 |
River Road |
State Highway Route 206, Mercer County Corporate Line |
Rocky Hill Borough Line |
|
630 |
Belle Mead - Griggstown Road |
State Highway Route 206 |
River Road CR 533 |
|
632 |
Griggstown Causeway |
River Road CR 533 |
Millstone River, Franklin Township Line |
Roadways under the jurisdiction of Somerset County within North Plainfield Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
531 |
Watchung Avenue (South Of Route 22) |
The Green Brook, Union County Corporate Line |
State Highway Route 22 |
|
531 |
Watchung Avenue, Somerset Street (North Of Route 22) |
State Highway Route 22 |
Watchung Borough Line (Near Johnston Drive) |
|
631 |
Somerset Street |
State Highway Route 22 |
Interhaven Avenue CR 631, Somerset St CR 531 |
|
636 |
Greenbrook Road, Somerset Street |
Rock Avenue CR 645, Green Brook Township Line |
Mountain Avenue CR 642 |
|
642 |
Mountain Avenue |
Somerset Street |
State Highway Route 22 |
|
645 |
Rock Avenue |
The Green Brook, Union County Corporate Line |
State Highway Route 22 |
|
649 |
West End Avenue |
The Green Brook, Union County Corporate Line |
State Highway Route 22 |
Roadways under the jurisdiction of Somerset County within Peapack & Gladstone Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
512 |
Pottersville Road, Main Street |
Bedminster Township Line (West Of Route 206) |
Nj Transit/Conrail Railroad, Bedminster Township Line |
|
628 |
Jackson Avenue |
Old Chester Road CR 671 |
Mendham Road CR 647 |
|
647 |
Mendham Road |
Main Street CR 512 |
Morris County Corporate Line |
|
661 |
Holland Avenue |
State Highway Route 206 |
Main Street CR 512 |
|
671 |
Main Street, Old Chester Road |
Pottersville Road CR 512 |
Morris County Corporate Line |
Roadways under the jurisdiction of Somerset County within Raritan Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
567 |
Old York Road, First Avenue |
Bridgewater Township Line |
State Highway Route 28 |
|
625 |
Lyman Street |
Raritan River, Hillsborough Township Line |
Old York Rd CR 567, Somerset St CR 626 |
|
626 |
Somerset Street |
Lyman Street CR 625, First Avenue CR 567 |
State Highway Route 206, Somerville Borough Line |
|
644 |
Frelinghuysen Avenue |
End Of Road (Dead End Near Route 202 Ramp) |
State Highway Route 28 (West End Avenue) |
Roadways under the jurisdiction of Somerset County within Rocky Hill Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
518 |
Washington Street |
Montgomery Township Line |
Millstone River, Franklin Township Line |
|
605 |
Kingston Road, Crescent Avenue |
Montgomery Township Line |
Washington Street CR 518 |
Roadways under the jurisdiction of Somerset County within Somerville Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
612 |
East Main Street |
North Gaston Avenue (Route 28) |
South & North Adamsville Road, Bridgewater Township Line |
|
626 |
Somerset Street |
State Highway Route 206, Raritan Borough Line |
Ramp Of West End Avenue And Main Street, State Highway Route 28 |
|
643 |
Mountain Avenue |
Somerset Street CR 626 |
Ramp Of Route 22, Bridgewater Township Line |
Roadways under the jurisdiction of Somerset County within South Bound Brook Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
527 |
Main Street |
Franklin Township Line |
Raritan River, Bound Brook Borough Line |
|
610 |
Edgewood Terrace |
Canal Road CR 623 |
Main Street CR 527 |
|
621 |
Elizabeth Street |
Franklin Township Line |
Canal Road CR 623 |
Roadways under the jurisdiction of Somerset County within Warren Township.
|
Route Number |
Local Road Name(s) |
From |
To |
|
525 |
Martinsville Liberty Corner Rd |
Bridgewater Township Line |
The Dead River, Bernards Township Line |
|
527 |
Morning Glory Road, Washington Valley Road, Mountain Blvd |
Green Brook Township Line (South Of Scheurman Terrace) |
Watchung Borough Line (Near Wildwood Terrace) |
|
531 |
Hillcrest Road |
Watchung Borough Line (South Of Crestwood Drive) |
Passaic River, Morris County Corporate Line |
|
616 |
Washington Valley Road |
Dock Watch Hollow Brook, Bridgewater Township Line |
Morning Glory Road CR 527 |
|
618 |
Mount Horeb Road |
Martinsville Liberty Corner Rd CR 525, Bernards Township Line |
Mount Bethel Road CR 651 |
|
622 |
Mountain Avenue |
Stirling Road CR 653 |
Union County Corp. Line (West Of Hillcrest Rd CR 531) |
|
638 |
Old Washington Valley Road |
Washington Valley Road, Mountain Blvd CR 527 |
Warrenville Road CR 651 |
|
651 |
Warrenville Road, Mount Bethel Road, King George Road |
Green Brook Township Line |
Bernards Township Line (North Of Route 78) |
|
654 |
Stirling Road |
Watchung Township Line |
Passaic River, Morris County Corporate Line |
Roadways under the jurisdiction of Somerset County within Watchung Borough.
|
Route Number |
Local Road Name(s) |
From |
To |
|
527 |
Mountain Boulevard, Watchung Rotary, Valley Road |
Warren Township Line (Near Wildwood Terrace) |
Union County Corporate Line (Near New Providence Road) |
|
531 |
Watchung Avenue, Somerset Street, Watchung Rotary, Valley Road, Hillcrest Road |
North Plainfield Borough Line (Near Johnston Drive) |
Warren Township Line (South Of Crestwood Drive) |
|
631 |
Interhaven Avenue |
Somerset Street CR 531 Sb & 631 |
Watchung Avenue CR 531 |
|
653 |
Stirling Road |
Watchung Rotary CR 527 & CR 531 |
Warren Township Line |
|
655 |
New Providence Road |
Bonnie Burn Road |
The Green Brook, Union County Corporate Line |
|
663 |
Union Avenue |
The Green Brook, Union County Corporate Line |
New Providence Road CR 655 |