County Routes by Municipality

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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.

Bedminster Township

Franklin Township

Peapack & Gladstone Borough

Bernards Township

Green Brook Township

Raritan Borough

Bernardsville Borough

Hillsborough Township

Rocky Hill Borough

Bound Brook Borough

Manville Borough

Somerville Borough

Branchburg Township

Millstone Borough

South Bound Brook Borough

Bridgewater Township

Montgomery Township

Warren Township

Far Hills Borough

North Plainfield Borough

Watchung Borough

 

Roadways under the jurisdiction of Somerset County within Bedminster Township.

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

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Roadways under the jurisdiction of Somerset County within Bernards Township.

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

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Roadways under the jurisdiction of Somerset County within Bernardsville Borough.

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

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Roadways under the jurisdiction of Somerset County within Bound Brook Borough.

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

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Roadways under the jurisdiction of Somerset County within Branchburg Township.

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

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Roadways under the jurisdiction of Somerset County within Bridgewater Township.

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

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Roadways under the jurisdiction of Somerset County within Far Hills Borough.

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

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Roadways under the jurisdiction of Somerset County within Franklin Township.

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)

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Roadways under the jurisdiction of Somerset County within Green Brook Township.

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

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Roadways under the jurisdiction of Somerset County within Hillsborough Township.

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

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Roadways under the jurisdiction of Somerset County within Manville Borough.

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

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Roadways under the jurisdiction of Somerset County within Millstone Borough.

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

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Roadways under the jurisdiction of Somerset County within Montgomery Township. Montgomery map.

MONTGOMERY TOWNSHIP

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

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Roadways under the jurisdiction of Somerset County within North Plainfield Borough.

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

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Roadways under the jurisdiction of Somerset County within Peapack & Gladstone Borough.

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

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Roadways under the jurisdiction of Somerset County within Raritan Borough.

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)

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Roadways under the jurisdiction of Somerset County within Rocky Hill Borough.

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

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Roadways under the jurisdiction of Somerset County within Somerville Borough.

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

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Roadways under the jurisdiction of Somerset County within South Bound Brook Borough.

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

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Roadways under the jurisdiction of Somerset County within Warren Township.

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

=

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Roadways under the jurisdiction of Somerset County within Watchung Borough.

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

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