# National Scenic Byway

A National Scenic Byway is a road recognized by the United States Department of Transportation for one or more of six "intrinsic qualities": archeological, cultural, historic, natural, recreational, and scenic. The program was established by Congress in 1991 to preserve and protect the nation's scenic but often less-traveled roads and promote tourism and economic development. The National Scenic Byways Program (NSBP) is administered by the Federal Highway Administration (FHWA).
Some scenic byways are designated All-American Roads, which must meet two out of the six intrinsic qualities. The designation means they have features that do not exist elsewhere in the United States and are unique and important enough to be tourist destinations unto themselves. As of January 21, 2021, there are 184 National Scenic Byways located in 48 states (all except Hawaii and Texas).

## History

The NSBP was established under the Intermodal Surface Transportation Efficiency Act of 1991, which provided $74.3 million in discretionary grants. On May 18, 1995, FHWA specified the intrinsic qualities that would serve as criteria for designating road as National Scenic Byways or All-American Roads. In September U.S. Transportation Secretary Federico Peña announced the first 14 National Scenic Byways and six All-American Roads. On June 9, 1998, the Transportation Equity Act for the 21st Century (TEA-21) provided $148 million to states so they could develop state roads to take advantage of the program.
On August 10, 2005, President George W. Bush signed the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), which provided $175 million to states and Indian tribes. On October 16, 2009, U.S. Transportation Secretary Ray LaHood designated 37 new roads as National Scenic Byways and five new All-American Roads. The U.S. Department of Transportation approved the designation on January 19, 2021, of 34 new roads as National Scenic Byways, in addition to 15 new All-American Roads.

## Requirements

National Scenic Byways go through a nomination procedure. They must already be designated state scenic byways to be nominated (However, roads that meet all criteria for national designation but not state designation may be considered for national designation on a case-by-case basis).

### Intrinsic qualities

For designation as a National Scenic Byway a road must have one of six intrinsic qualities. To be designated an All-American Road, a road must have at least two of the six qualities.
* Scenic quality is the heightened visual experience derived from the view of natural and manmade elements of the visual environment of the scenic byway corridor. The characteristics of the landscape are strikingly distinct and offer a pleasing and most memorable visual experience.
* Natural quality applies to those features in the visual environment that are in a relatively undisturbed state. These features predate the arrival of human populations and may include geological formations, fossils, landform, water bodies, vegetation, and wildlife. There may be evidence of human activity, but the natural features reveal minimal disturbances.
* Historic quality encompasses legacies of the past that are distinctly associated with physical elements of the landscape, whether natural or manmade, that are of such historic significance that they educate the viewer and stir an appreciation for the past. The historic elements reflect the actions of people and may include buildings, settlement patterns, and other examples of human activity.
* Cultural quality is evidence and expressions of the customs or traditions of a distinct group of people. Cultural features include, but are not limited to, crafts, music, dance, rituals, festivals, speech, food, special events, or vernacular architecture.
* Archeological quality involves those characteristics of the scenic byways corridor that are physical evidence of historic or prehistoric human life or activity. The scenic byway corridor's archeological interest, as identified through ruins, artifacts, structural remains, and other physical evidence have scientific significance that educate the viewer and stir an appreciation for the past.
* Recreational quality involves outdoor recreational activities directly associated with and dependent upon the natural and cultural elements of the corridor's landscape. The recreational activities provide opportunities for active and passive recreational experiences. They include, but are not limited to, downhill skiing, rafting, boating, fishing, and hiking. Driving the road itself may qualify as a pleasurable recreational experience. The recreational activities may be seasonal, but the quality and importance of the recreational activities as seasonal operations must be well recognized.

### Corridor management plans

A corridor management plan must also be developed, with community involvement, and the plan "should provide for the conservation and enhancement of the byway's intrinsic qualities as well as the promotion of tourism and economic development". The plan includes, but is not limited to:
* A map identifying the corridor boundaries and the location of intrinsic qualities and different land uses within the corridor.
* A strategy for maintaining and enhancing those intrinsic qualities.
* A strategy describing how existing development might be enhanced and new development might be accommodated while still preserving the intrinsic qualities of the corridor.
* A general review of the road's or highway's safety and accident record to identify any correctable faults in highway design, maintenance, or operations.
* A signage plan that demonstrates how the State will insure and make the number and placement of signs more supportive of the visitor experience.
* A narrative describing how the National Scenic Byway will be positioned for marketing.
Corridor management plans for All-American Roads must also include:
* A narrative on how the All-American Road would be promoted, interpreted, and marketed in order to attract travelers, especially those from other countries.
* A plan to encourage the accommodation of increased tourism, if this is projected. Some demonstration that the roadway, lodging and dining facilities, roadside rest areas, and other tourist necessities will be adequate for the number of visitors induced by the byway's designation as an All-American Road.
* A plan for addressing multi-lingual information needs.
The final step is when the highway (or highways) is approved for designation by the United States Secretary of Transportation.

## List of byways

| Type | Name | Length (mi) | Length (km) | State(s) | Southern or western terminus | Northern or eastern terminus | Date designated | Description | Intrinsic qualities | Ref(s) |
| AAR | A1A Scenic and Historic Coastal Byway | 72.0 | 115.9 | Florida | Gamble Rogers Memorial State Recreation Area | SR 202 in Ponte Vedra Beach | June 13, 2002 (NSB); February 16, 2021 (AAR) | Follows Atlantic coast barrier islands | Recreational, Historic | |
| AAR | Acadia All-American Road | 40.0 | 64.4 | Maine | Entirety of the Park Loop Road in Acadia National Park | Ellsworth–Trenton town line on SR 3 | June 15, 2000 | Scenic drive providing access to the coastal mountains of Acadia National Park | Recreational, Scenic | |
| NSB | Alabama's Coastal Connection | 130.0 | 209.2 | Alabama | I-10 and Grand Bay Wilmer Road north of Grand Bay | I-10 and US 98 south of Spanish Fort | October 16, 2009 | Scenic and historic drive along Alabama's Gulf Coast | Scenic | |
| AAR | Alaska's Marine Highway | 3,500.0 | 5,632.7 | Alaska | Ferry terminal in Unalaska | Ferry terminal in Metlakatla (with ferry connections to Prince Rupert, BC and Bellingham, WA) | June 13, 2002 (NSB); September 22, 2005 (AAR) | Ferry system connecting Alaskan coastal communities | Scenic, Cultural, Natural | |
| NSB | Amish Country Byway | 76.2 | 122.6 | Ohio | SR 39 in Loudonville; US 62 near Brinkhaven | US 62 near Wilmot; SR 39 near Sugarcreek | June 13, 2002 | Route forms a double loop through the pastoral countryside of eastern Ohio's Amish communities | Cultural | |
| NSB | Arroyo Seco Historic Parkway - I-110/SR 110 | 9.5 | 15.3 | California | US 101 in downtown Los Angeles | Glenarm Street in Pasadena | June 13, 2002 | The first freeway in the United States connects Los Angeles and Pasadena through the park-like landscape of the Arroyo Seco | Historic | |
| NSB | Ashley River Road | 11.0 | 17.7 | South Carolina | Mile marker 5.84 on SC 61 | Mile marker 15.75 on SC 61 | June 15, 2000 | Traverses a historic plantation district along the Ashley River near Charleston | Historic | |
| NSB | Baltimore's Historic Charles Street | 12.0 | 19.3 | Maryland | Winder Street in South Baltimore | Bellona Avenue in Lutherville | October 16, 2009 | Travels the entire length of historic Charles Street through downtown Baltimore | Historic | |
| NSB | Bayou Teche National Scenic Byway | 183.8 | 295.8 | Louisiana | LA 182 in Morgan City | LA 31 and LA 93 in Arnaudville | February 16, 2021 | Follows the original course of the Mississippi along Bayou Teche, a culturally significant and scenic waterway in the Atchafalaya National Heritage Area | Cultural | |
| NSB | Bayshore Heritage Scenic Byway | 142.0 | 228.5 | New Jersey | Cape May Point State Park | CR 540 in Mannington | February 16, 2021 | Traverses the coastal communities and wetlands of the Delaware Bay, a significant birding and migratory destination | Natural | |
| AAR | Beartooth Highway | 68.7 | 110.6 | Montana, Wyoming | Wyoming–Montana state line on US 212 near Cooke City | US 212 and MT 78 in Red Lodge | June 15, 2000 June 13, 2002 (extended in Montana) | Scenic high-elevation highway to Yellowstone National Park's northeast entrance | Natural, Scenic | |
| NSB | Big Bend Scenic Byway | 220.0 | 354.1 | Florida | Scipio Creek Marina in Apalachicola | St. Marks Light in St. Marks National Wildlife Refuge | October 16, 2009 | Travels along hundreds of acres of wet prairie, wet flatwoods, strand swamp, and bottomland forest | Natural | |
| NSB | Billy the Kid Trail | 84.0 | 135.2 | New Mexico | NM 48 and Sudderth Drive in Ruidoso | US 70 and US 380 near Hondo | June 9, 1998 | Loop through historic Old West towns in the rugged mountains of the Lincoln National Forest | Scenic | |
| AAR | Blue Ridge Parkway | 469.0 | 754.8 | North Carolina, Virginia | US 441 near Cherokee | US 250 near Waynesboro | September 19, 1996 (NC) September 22, 2005 (VA) | Scenic drive along America's longest linear park and the winding spine of the Blue Ridge Mountains | Historic, Scenic (NC); Recreational, Cultural (VA) | |
| NSB | Bold Coast Scenic Byway | 147.0 | 236.6 | Maine | Gouldsboro | Calais | February 16, 2021 | Coastal route through Down East Maine to the Canadian border | Historic | |
| NSB | Boom or Bust Byway | 137.0 | 220.5 | Louisiana | LA 2 at the Louisiana-Texas state line | Lake Claiborne State Park | February 16, 2021 | Explores the rural remnants of the oil and gas, lumber, transportation, farming, and entertainment industries of Ark-La-Tex and Northern Louisiana | Historic | |
| NSB | Brandywine Valley Scenic Byway | 37.3 | 60.0 | Delaware, Pennsylvania | King Street and 11th Street in downtown Wilmington | PA 162 near West Chester | September 22, 2005 (DE) February 16, 2021 (PA) | Historic drive along the Brandywine Creek through the "Chateau Country" of northern Delaware and southeastern Pennsylvania | Historic | |
| NSB | Cascade Lakes Scenic Byway | 66 | 106 | Oregon | Junction of OR 58 and Crescent Cutoff Road (NF-61) near Crescent Lake | Boundary between Deschutes National Forest and Bend on SW Century Drive | June 9, 1998 | Traverses forested region of glacial lakes and volcanic mountains in Central Oregon | Scenic | |
| NSB | Cascade Loop | 440 | 710 | Washington | Whidbey Island; Everett; Stevens Pass | North Cascades National Park; Lake Chelan; Wenatchee | February 16, 2021 | Loop around the Cascade Mountains, Columbia River in Central Washington, and the Skagit Valley | Scenic | |
| NSB | Cherohala Skyway | 43.0 | 69.2 | North Carolina, Tennessee | SR 165 in Tellico Plains | NC 143 in Robbinsville | September 19, 1996 (TN) June 9, 1998 (NC) | Ridgetop drive in the Appalachians | Scenic | |
| NSB | Cherokee Foothills Scenic Highway | 112.0 | 180.2 | South Carolina | I-85 west of Fair Play | SC 150 in Gaffney | June 9, 1998 | Follows part of the historic Cherokee Path through the Blue Ridge Escarpment of Upstate South Carolina | Scenic | |
| NSB | Cherokee Hills Byway | 84.0 | 135.2 | Oklahoma | I-40 south of Gore | Oklahoma–Arkansas state line on US 412 | October 16, 2009 | Situated in the foothills of the Ozark Mountains, this route showcases eastern Oklahoma's tremendous natural diversity and rich Cherokee heritage | Cultural | |
| AAR | Chesapeake Country Scenic Byway | 85.5 | 137.6 | Maryland | MD 18 in Stevensville (southern spur) and MD 445 on Eastern Neck Island (northern spur) | Chesapeake & Delaware Canal on MD 213 in Chesapeake City | June 13, 2002 (NSB) February 16, 2021 (AAR) | Traverses the historic Eastern Shore of Chesapeake Bay | Cultural, Recreational | |
| AAR | Chinook Scenic Byway (Stephen Mather Memorial Parkway) | 85.0 | 136.8 | Washington | SR 164 and SR 169 in Enumclaw | US 12 near Naches | June 9, 1998 | Scenic drive with dramatic views of Mount Rainier | Scenic | |
| NSB | City of Las Vegas, Las Vegas Boulevard State Scenic Byway | 3.4 | 5.5 | Nevada | Las Vegas Boulevard at Sahara Avenue; Las Vegas Strip | Las Vegas Boulevard at E Washington Avenue | June 15, 2000 | Extensive displays of neon art between downtown and the Las Vegas Strip | Scenic | |
| NSB | Coal Heritage Trail | 97.6 | 157.1 | West Virginia | US 52 at the West Virginia-Virginia state line | WV 16 at I-77 in Beckley | June 9, 1998 | Historic drive through coal-producing areas of southwestern West Virginia | Historic | |
| AAR | Colonial Parkway | 23.0 | 37.0 | Virginia | Historic Jamestowne Visitor Center in Jamestown | Yorktown Battlefield Visitor Center in Yorktown | September 22, 2005 | Landscaped parkway connecting three Colonial-era historic sites | Natural, Historic | |
| NSB | Colorado River Headwaters Byway | 69.0 | 111.0 | Colorado | SH 131 and Trough Road south of Bond | US 34 and West Portal Road in Grand Lake | September 22, 2005 | Follows the upper reaches of the Colorado River past alpine reservoirs, lush ranchlands, and dramatic canyon landscapes | Historic | |
| NSB | Connecticut River Byway | 498.7 | 802.6 | Massachusetts, New Hampshire, Vermont | Route 116 and Route 47 in South Hadley | VT 114 at US 3 in West Stewartstown | September 22, 2005 (NH, VT) October 16, 2009 (MA) | Scenic drive on both sides of New England's longest river | Historic | |
| NSB | Connecticut State Route 169 | 32.0 | 51.5 | Connecticut | Route 138 in Lisbon | Connecticut–Massachusetts state line on Route 169 | September 19, 1996 | Scenic and historic route through one of the last unspoiled areas in New England | Scenic | |
| NSB | Copper Country Trail | 47.0 | 75.6 | Michigan | Portage Lake Lift Bridge in Hancock | M-26 in Copper Harbor | September 22, 2005 | Follows US 41 and traverses an area developed for copper mining | Historic | |
| NSB | Coronado Trail Scenic Byway | 123.0 | 197.9 | Arizona | US 191 and Burro Alley in Morenci | US 180 and Main Street in Springerville | September 22, 2005 | Scenic drive from the Chihuahuan Desert to the Colorado Plateau, crossing the Mogollon Rim in Apache-Sitgreaves National Forest | Scenic | |
| NSB | Coulee Corridor Scenic Byway | 150.0 | 241.4 | Washington | SR 26 and SR 17 near Othello | SR 155 and US 97 in Omak | September 22, 2005 | Passes through coulees and the Channeled Scablands formed by receding glaciers | Natural | |
| NSB | Country Music Highway | 144.1 | 231.9 | Kentucky | US 119 near Whitesburg | KY 2 in Greenup | June 13, 2002 | Backwoods drive commemorating eastern Kentucky's cultural heritage | Cultural | |
| AAR | Creole Nature Trail | 180.0 | 289.7 | Louisiana | LA 27 in Sulphur; LA 82 at Sabine Pass | LA 27 and LA 385 in Lake Charles; LA 82 near the Rockefeller Wildlife Refuge | September 19, 1996 (NSB); June 13, 2002 (AAR) | Meanders through the marshes, prairies, and coastal region of Acadiana in southwestern Louisiana | Cultural, Natural | |
| NSB | Crowley's Ridge Parkway | 212.0 | 341.2 | Arkansas, Missouri | Helena Bridge on US 49 near Helena–West Helena | J Street and Route 25 near Malden | June 9, 1998 (AR); June 15, 2000 (MO) | Scenic and historic drive along Crowley's Ridge through the Mississippi Embayment and the Missouri Bootheel | Natural | |
| NSB | Cumberland Historic Byway | 156.0 | 251.1 | Tennessee | SR 52 at the Cumberland River in Celina | SR 63 at US 25E near Cumberland Gap National Historical Park | February 16, 2021 | Winds through the hidden frontier of the Cumberland Plateau | Historic | |
| NSB | Death Valley Scenic Byway | 81.5 | 131.2 | California | Death Valley National Park west entrance on SR 190 | Death Valley National Park east entrance on SR 190 | June 9, 1998; June 13, 2002 (extended) | Scenic drive through the expansive desert basin of the lowest place in North America | Scenic | |
| NSB | Delaware Bayshore Byway | 157.0 | 252.7 | Delaware | Lewes | New Castle | January 19, 2021 | Scenic and historic drive along the Delaware Bay and Delaware River in Delaware | Historic | |
| NSB | Delaware River Scenic Byway | 32.8 | 52.8 | New Jersey | I-195/I-295 in Hamilton Township | Trenton Avenue and Route 12 in Frenchtown | October 16, 2009 | Scenic and historic drive along the Delaware River in central New Jersey | Historic | |
| NSB | Dinosaur Diamond Prehistoric Highway | 480.0 | 772.5 | Colorado, Utah | US 191 in Price; US 191 in Moab | US 40/US 191 in Vernal; SH 139 between Rangely and Loma | June 13, 2002 | Loop through the northern Colorado Plateau, passing many dinosaur fossil sites and museums | Natural | |
| NSB | Door County Coastal Byway | 67.1 | 108.0 | Wisconsin | WIS 57 and WIS 42 in Sturgeon Bay | WIS 42 in Northport | February 16, 2021 | Loop along the coast of Green Bay and Lake Michigan, through the forests and Niagara Escarpment of Door County | Natural | |
| NSB | East Tennessee Crossing Byway | 83.0 | 133.6 | Tennessee | North Carolina–Tennessee state line on US 25 near Del Rio | Tennessee–Kentucky state line on US 25E near Cumberland Gap | October 16, 2009 | Explores the historic trails, cultural heritage, and recreational opportunities of East Tennessee's Appalachian backcountry | Historic | |
| NSB | Ebbetts Pass Scenic Byway | 61.0 | 98.2 | California | SR 4 in Arnold | SR 89 near Markleeville | September 22, 2005 | Traverses the high-alpine Sierra Nevada through Ebbetts Pass, with access to the northernmost groves of giant sequoia | Scenic | |
| NSB | Edge of the Wilderness | 47.0 | 75.6 | Minnesota | US 2 in Grand Rapids | MN 1 in Effie | September 19, 1996 | Scenic drive through forests and rollings hills of the Minnesota Northwoods | Natural | |
| NSB | Edisto Island National Scenic Byway | 16.8 | 27.0 | South Carolina | Palmetto Boulevard and SC 174 in Edisto Beach | Dawhoo Bridge on SC 174 | October 16, 2009 | Scenic drive through salt marshes and live oak forests in the South Carolina Lowcountry | Scenic | |
| NSB | El Camino Real | 299.0 | 481.2 | New Mexico | NM 273 at the Rio Grande in Sunland Park | NM 74 in Ohkay Owingeh | June 9, 1998 September 22, 2005 (extended) | Historic north–south route through the Rio Grande Valley of central New Mexico | Historic | |
| NSB | The Energy Loop: Huntington/Eccles Canyons Scenic Byway | 85.9 | 138.2 | Utah | SR 31 in Huntington; SR 31 in Fairview | US 6 in Colton | June 15, 2000 | Scenic route comprising historic towns, coal mining operations, and Manti–La Sal National Forest | Scenic | |
| NSB | Flaming Gorge-Uintas Scenic Byway | 82.0 | 132.0 | Utah | US 191 in Vernal | SR 44 in Manila; US 191 at the Utah-Wyoming state line | June 9, 1998 | Scenic drive through the Uinta Mountains and Flaming Gorge National Recreation Area | Natural | |
| AAR | Flaming Gorge-Green River Basin Scenic Byway | 96.0 | 154.5 | Wyoming | WYO 530 at the Wyoming-Utah state line; US 191 at the Wyoming-Utah state line | WY 530 in Green River; US 191 at I-80 in Purple Sage | February 16, 2021 | Parallel routes through high desert and redrock country on either side of the Flaming Gorge | Natural, Recreational | |
| NSB | Flint Hills Scenic Byway | 48.0 | 77.2 | Kansas | I-35 near Cassoday | US 56 in Council Grove | September 22, 2005 | Scenic drive through the Flint Hills and some of the last remaining tallgrass prairie in North America | Scenic | |
| NSB | Florida Black Bear Scenic Byway | 123.0 | 197.9 | Florida | SR 19 at National Forest boundary; SR 40 in Silver Springs | SR 19 at National Forest boundary; SR 40 at I-95 in Ormond Beach | October 16, 2009 | Route connecting natural springs, pine forests, and endangered species' habitats in Ocala National Forest | Natural | |
| AAR | Florida Keys Scenic Highway | 106.5 | 171.4 | Florida | Mile marker 0 on US 1 in Key West | Jewfish Creek Bridge on Key Largo | October 16, 2009 (AAR) | Scenic route across a system of open ocean bridges connecting the numerous tropical islands of the Florida Keys | Recreational, Scenic | |
| NSB | Forest Heritage National Scenic Byway | 17.6 | 28.3 | North Carolina | Junction of US 276 and US 64 | US 276 at the Pigeon River near the Shining Rock Wilderness | October 16, 2009 | Rural route through the Cradle of Forestry in Pisgah National Forest | Historic | |
| NSB | Frontier Pathways Scenic and Historic Byway | 103.0 | 165.8 | Colorado | SH 96 in Westcliffe | El Pueblo History Museum in Pueblo; | June 9, 1998 | Follows the paths of early explorers through the Sangre de Cristo Mountains | Scenic | |
| NSB | The George Parks Highway Scenic Byway | 203.0 | 326.7 | Alaska | Chulitna River Bridge in Denali State Park | Steese Highway in Fairbanks | October 16, 2009 | Wilderness route stretching from the Alaska Range through the interior of Alaska | Natural | |
| AAR | George Washington Memorial Parkway | 25.0 | 40.2 | Virginia, Washington, D.C. | SR 235 in Mount Vernon | I-495 near McLean | September 22, 2005 | Landscaped greenway connecting national memorials and historic sites along the Potomac River, across from the nation's capital | Natural, Historic | |
| NSB | Geronimo Trail Scenic Byway | 154.0 | 247.8 | New Mexico | NM 152 in San Lorenzo; NM 59 at Beaverhead station in Gila National Forest | Geronimo Trail Interpretive Center in Truth or Consequences | September 22, 2005 | Scenic drive past hot springs, mining towns, and traditional lands of the Apache in southwestern New Mexico | Historic | |
| NSB | Glenn Highway | 135.0 | 217.3 | Alaska | Gambell Street in Anchorage | Lake Louise Road near Mendeltna | June 13, 2002 | Terrain shaped by receding glaciers | Scenic | |
| NSB | Gold Belt Tour Scenic and Historic Byway | 135.0 | 217.3 | Colorado | US 50 in Florence | Florissant | June 15, 2000 | Follows stage and rail routes to historic gold mining locations | Historic | |
| NSB | Grand Mesa Scenic and Historic Byway | 63.0 | 101.4 | Colorado | SH 65 in Cedaredge; Lands End Observatory on FS 100 | Junction of SH 65 and I-70 | September 19, 1996 | Climbs from the Colorado River in the Grand Valley to the Grand Mesa, the largest flat-topped mountain in | Historic | |
| NSB | Grand Rounds National Scenic Byway | 52.0 | 83.7 | Minnesota | Loop route | Northeast spur trail to Cross Golf Course | June 9, 1998 | Continuous parkway surrounding Minneapolis | Recreational | |
| NSB | Great Lakes Seaway Trail | 518.0 | 833.6 | New York, Pennsylvania | Ohio–Pennsylvania state line on US 20 west of Erie, Pennsylvania | Seaway International Bridge near Massena, New York | September 19, 1996 (NY) September 22, 2005 (PA) | Scenic drive along the shores of Lake Erie, Lake Ontario, and the St. Lawrence River | Historic | |
| NSB | Great River Road | 2,069.0 | 3,329.7 | Arkansas, Illinois, Iowa, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Tennessee, Wisconsin | LA 23 in Venice, Louisiana | Itasca State Park north of Park Rapids, Minnesota | June 15, 2000 (IL, IA, MN, WI) June 13, 2002 (AR) September 22, 2005 (MS) October 16, 2009 (TN) | Numerous scenic, historic, and culturally significant roadways paralleling the entire length of the Mississippi River from its headwaters to the Gulf of Mexico | Historic, Cultural, Scenic, Natural | |
| NSB | Gunflint Trail Scenic Byway | 57.0 | 91.7 | Minnesota | North Shore Scenic Drive in Grand Marais | Trails End near Sea Gull Lake | October 16, 2009 | Scenic drive through the Superior National Forest | Natural | |
| NSB | Haines Highway-Valley of the Eagles | 44.0 | 70.8 | Alaska | AK 7 at the Canadian border | Ferry terminal in Haines | October 16, 2009 | Route through the Chilkat River valley, a migratory site for the world's largest congregation of bald eagles | Natural | |
| AAR | Harriet Tubman Underground Railroad Byway | 144.0 | 231.7 | Maryland | Rosehill Place and Byrn Street in Cambridge | Maryland–Delaware state line on MD 287 near Goldsboro | October 16, 2009 | Threads together numerous historic sites in the Delmarva Peninsula commemorating Harriet Tubman and the Underground Railroad | Cultural, Historic | |
| AAR | Hells Canyon Scenic Byway | 218.4 | 351.5 | Oregon | OR 86 and I-84 near Baker City | OR 82 and I-84 in La Grande | June 15, 2000 | Provides views of Hells Canyon on the Snake River | Natural, Scenic | |
| NSB | Highland Scenic Highway | 43.0 | 69.2 | West Virginia | WV 39 in Fenwick | Junction of WV 150 and US 219 | September 19, 1996 | Scenic drive through mountains and valleys | Natural | |
| NSB | Historic Bluff Country Scenic Byway | 88.0 | 141.6 | Minnesota | MN 16 and US 14 / Great River Road in La Crescent | MN 16 and I-90 in Dexter | June 13, 2002 | Historic and scenic drive through southeastern Minnesota | Scenic | |
| AAR | Historic Columbia River Highway | 70.0 | 112.7 | Oregon | Crown Point Highway east of Troutdale (western section); US 30 and I-84 in Mosier (eastern section) | I-84 near the Bonneville Dam (western section); US 30 and Hostetler Way in The Dalles (eastern section) | June 9, 1998 | America's oldest scenic highway exists in two discontinuous sections which follow historic routes through the Columbia River Gorge | Historic, Scenic | |
| AAR | Historic National Road | 824.2 | 1,326.4 | Illinois, Indiana, Maryland, Ohio, Pennsylvania, West Virginia | Eads Bridge in East St. Louis | Lombard Street in downtown Baltimore | June 9, 1998 (IN) June 15, 2000 (IL) June 13, 2002 (AAR, all states) | Travels the route of the nation's first federally funded interstate highway along a historic corridor to the American Midwest | Cultural, Historic | |
| AAR | Historic Route 66 | 1,408.6 | 2,266.9 | Arizona, Missouri, New Mexico, Oklahoma (AAR); California, Illinois (NSB) | Main Street in Barstow | Lakeshore Drive and Jackson Boulevard in Chicago | June 15, 2000 (AZ, IL, NM, OK) February 16, 2021 (CA, MO) | Historic "Mother Road" linking Chicago to Los Angeles | Historic, Natural, Cultural | |
| NSB | Hocking Hills Scenic Byway | 30.0 | 48.3 | Ohio | SR 56 and SR 374 near South Bloomingville | US 33 and SR 374 near Rockbridge | February 16, 2021 | Scenic route through the forested and geologically varied Hocking Hills | Recreational | |
| NSB | Illinois River Road (Route of the Voyageurs) | 291.0 | 468.3 | Illinois | Water Street and US 136 in Havana | Reddick Mansion in Ottawa | September 22, 2005 | A loop through the scenic Illinois River Valley with routes along both sides of the upper Illinois River | Natural | |
| NSB | Indian River Lagoon National Scenic Byway | 150.0 | 241.4 | Florida | US 1 and 85th Street in Wabasso | US 1 and Kennedy Parkway near Oak Hill | June 13, 2002 | Series of connected loops providing access to the most biodiverse lagoon ecosystem in the northern hemisphere, as well as Kennedy Space Center and Cape Canaveral | Natural | |
| NSB | Indiana's Historic Pathways | 250.0 | 402.3 | Indiana | US 50 at the Ohio state line near Lawrenceburg; US 150 at Falls of the Ohio State Park in Clarksville | US 50 at the Wabash River near Vincennes | October 16, 2009 | Historic Pioneer route through the lower Ohio River Valley | Historic | |
| AAR | International Selkirk Loop | 144.1 | 231.9 | Idaho, Washington | British Columbia–Washington border on SR 31 | Idaho–British Columbia border on SH 1 | September 22, 2005 | Internationally designated scenic highway encircles the remote Selkirk Mountains spanning the Canadian border | Historic, Recreational, Scenic | |
| NSB | Jemez Mountain Trail | 163.0 | 262.3 | New Mexico | US 550 and NM 126 in Cuba; US 550 and NM 4 in San Ysidro | NM 4 and NM 501 near Los Alamos | June 9, 1998 | Scenic drive past geological formations and Indian ruins | Recreational | |
| NSB | Journey Through Hallowed Ground Byway | 180.0 | 289.7 | Maryland, Pennsylvania, Virginia | A loop that begins and ends at the intersection of SR 20 and SR 231 near Somerset, Virginia | PA 394 near Gettysburg, Pennsylvania | October 16, 2009 | Historic corridor featuring hundreds of sites significant to American history, most notably the densest collection of Civil War battlefields in the nation; "Where America Happened" | Recreational, Historic | |
| NSB | Kaibab Plateau–North Rim Parkway | 42.0 | 67.6 | Arizona | Bright Angel Point in Grand Canyon National Park | US 89A in Jacob Lake | June 9, 1998 | Scenic drive through ponderosa pine forests to the North Rim of the Grand Canyon | Scenic | |
| NSB | Kancamagus Scenic Byway | 26.5 | 42.6 | New Hampshire | US 3 in North Woodstock | NH 113 in Conway | September 19, 1996 | Scenic drive through the heart of the White Mountains | Scenic | |
| NSB | Katahdin Woods and Waters Scenic Byway | 89.0 | 143.2 | Maine | South entrance of Baxter State Park | Grand Lake Road near Grand Lake Matagamon | February 16, 2021 | Scenic route around the forested waterways of inland Maine near Mt. Katahdin and the neighboring national monument | Recreational | |
| NSB | Lake Erie Coastal Ohio Trail | 293.0 | 471.5 | Ohio | Waterville, Ohio | US 20 at the Pennsylvania state line | September 22, 2005 | Follows the south shore of Lake Erie | Historic | |
| NSB | Lake Tahoe - Eastshore Drive | 28.0 | 45.1 | Nevada | US 50 in Stateline | SR 28 in Crystal Bay | September 19, 1996 | Follows the east shore of Lake Tahoe | Scenic | |
| AAR | Lakes to Locks Passage | 234.0 | 376.6 | New York | US 4 and NY 32 in Waterford | US 11 and NY 9B in Rouses Point | June 13, 2002 (AAR) | Parallels the interconnected waterways of the Hudson River, Champlain Canal, Lake George, and Lake Champlain between Upstate New York and Quebec | Historic, Recreational | |
| NSB | Lariat Loop Scenic and Historic Byway | 40 | 64 | Colorado | Evergreen, Colorado | Begins and ends at the intersection of 6th Avenue and 19th Street in Golden | October 16, 2009 | Loops through the historic towns of Morrison, Evergreen and Golden in the foothills west of Denver | Historic | |
| AAR | Las Vegas Strip | 4.5 | 7.2 | Nevada | Las Vegas Boulevard and Russell Road | Las Vegas Boulevard and Sahara Avenue | June 15, 2000 | Urban boulevard lined with the glitz and glamour of Las Vegas's world-famous casinos | Cultural, Scenic | |
| NSB | Lincoln Heritage Scenic Highway | 71.2 | 114.6 | Kentucky | Abraham Lincoln Birthplace National Historical Park | US 150 in Danville | October 16, 2009 | Explores aspects of Kentucky history including Abraham Lincoln, the Civil War, and bourbon heritage | Historic | |
| NSB | Lincoln Highway | 178.8 | 287.8 | Illinois | IL 136 at the Mississippi River in Fulton | US 30 at the Indiana state line | June 15, 2000 | A portion of America's first transcontinental highway, the Lincoln Highway | Historic | |
| NSB | Lincoln Highway Heritage Byway | 460.0 | 740.3 | Iowa | US 30 at the Missouri River near Missouri Valley; I-480/US 6 at the Missouri River in Council Bluffs | Iowa 136 and US 30 in Clinton | February 16, 2021 | Portion of the first transcontinental highway, visiting historical communities across the entirety of Iowa | Historic | |
| NSB | Lincoln Highway Scenic and Historic Byway | 450.0 | 724.2 | Nebraska | US 30 at the Wyoming state line near Bushnell | US 30 at the Missouri River in Blair | February 16, 2021 | Portion of the Main Street of America, following the Platte River across Nebraska | Historic | |
| NSB | Loess Hills Scenic Byway | 220.0 | 354.1 | Iowa | US 275 at the Missouri border | Iowa 12 and Iowa 48 near Akron | June 15, 2000 | Unique and expansive silt deposits in the Missouri River Valley | Natural | |
| NSB | Logan Canyon Scenic Byway | 41.0 | 66.0 | Utah | Main Street and US 89 in downtown Logan | US 89 and SR 30 in Garden City at Bear Lake | June 13, 2002 | Follows the Logan River through the forests, meadows, and rock formations of scenic Logan Canyon | Natural | |
| NSB | McKenzie Pass-Santiam Pass Scenic Byway | 82.0 | 132.0 | Oregon | Junction of OR 126 and OR 242 at the McKenzie River ranger station | Begins and ends at the intersection of OR 242 and US 20 in Sisters | June 9, 1998 | Loop around Mount Washington crossing two Cascade passes | Scenic | |
| NSB | Meeting of the Great Rivers Scenic Route | 33.0 | 53.1 | Illinois | IL 108 at the Illinois River near Kampsville | IL 3 near Alton | June 9, 1998 June 15, 2000 (extended) | Floodplain where the Illinois, Mississippi, and Missouri rivers meet | Historic | |
| NSB | Merritt Parkway | 37.0 | 59.5 | Connecticut | New York–Connecticut state line on Route 15 | Sikorsky Bridge on the Housatonic River near Milford | September 19, 1996 | Historic parkway through Connecticut's Gold Coast known for its elaborate Art Deco bridges | Historic | |
| NSB | Midland Trail | 116.8 | 188.0 | West Virginia | US 60 in Charleston | US 60 in White Sulphur Springs | June 15, 2000 | Scenic drive through the New River Gorge | Recreational | |
| NSB | Millstone Valley Scenic Byway | 27.5 | 44.3 | New Jersey | Kingston, New Jersey | East Millstone, New Jersey | October 16, 2009 | Scenic and historic drive along the Millstone River in central New Jersey | Historic | |
| NSB | Minnesota River Valley Scenic Byway | 287 | 462 | Minnesota | MN 7 in Browns Valley | MN 93 near Belle Plaine | June 13, 2002 | Historic drive through the Minnesota River Valley | Historic | |
| NSB | Mohawk Towpath Byway | 26.2 | 42.2 | New York | Aqueduct Road in Schenectady | Fonda Road and NY 32 in Waterford | September 22, 2005 | Follows the historic Erie Canal | Historic | |
| NSB | Mohawk Trail Scenic Byway | 69.0 | 111.0 | Massachusetts | Route 2 in Williamstown | Routee 2A near Athol | February 16, 2021 | Culturally significant route connecting the Connecticut River Valley and the Hudson River Valley through the Berkshires | Historic | |
| NSB | Mountains to Sound Greenway - I-90 | 100.0 | 160.9 | Washington | I-90 in Seattle | I-90 near Thorp | June 9, 1998 | Scenic drive across Snoqualmie Pass in the Cascades | Scenic | |
| NSB | Mt. Hood Scenic Byway | 105.0 | 169.0 | Oregon | Troutdale Bridge crossing the Sandy River near Troutdale | OR 35 near Hood River | September 22, 2005 | Provides scenic views of Mount Hood | Historic | |
| AAR | Natchez Trace Parkway | 444.0 | 714.5 | Alabama, Mississippi, Tennessee | Liberty Road in Natchez | SR 100 in Pasquo | September 19, 1996 | Two-lane limited-access parkway through rural countryside commemorating the historic route of the Natchez Trace | Historic, Scenic | |
| NSB | Native American Scenic Byway | 350 | 560 | North Dakota, South Dakota | SD 50 and I-90 in Chamberlain | ND 24 at Lake Oahe near Cannon Ball | June 9, 1998 (South Dakota) September 22, 2005 (extended) | Traverses four Lakota Sioux reservations | Cultural, Historic | |
| NSB | Nebo Loop Scenic Byway | 37.0 | 59.5 | Utah | SR 132 near Nephi | I-15 and SR 115 in Payson | June 9, 1998 | Alpine backroad through the Mount Nebo Wilderness in the southern Wasatch Range | Scenic | |
| AAR | Newfound Gap Road Byway | 31.0 | 49.9 | Tennessee, North Carolina | US 441 at park boundary near Cherokee | US 441 at park boundary near Gatlinburg | February 16, 2021 | One of the primary routes, passing through Newfound Gap, through Great Smoky Mountains National Park | Historic, Scenic | [114] [115] |
| NSB | Norris Freeway | 21.0 | 33.8 | Tennessee | US 441 and SR 33 in Halls Crossroads | US 441 and US 25W in Rocky Top | February 16, 2021 | Route through rural eastern Tennessee, crossing Norris Dam, the first large-scale project of the TVA | Recreational | |
| AAR | North Shore Scenic Drive | 154.0 | 247.8 | Minnesota | Canal Park in Duluth | Canadian border on MN 61 near Grand Portage | June 15, 2000 (AAR) June 13, 2002 (extended) | Follows the scenic North Shore of Lake Superior | Recreational, Scenic | |
| AAR | Northwest Passage Scenic Byway | 202.0 | 325.1 | Idaho | Washington–Idaho state line on US 12 near Lewiston | Idaho–Montana state line on US 12 at Lolo Pass | June 13, 2002 (NSB) September 22, 2005 (extended, AAR) | Follows the route of Lewis and Clark's historic search for the Northwest Passage through scenic mountains and river valleys | Historic, Cultural | |
| NSB | Ohio & Erie Canalway | 110.0 | 177.0 | Ohio | New Philadelphia | Public Square, Cleveland | June 15, 2000 | Historic drive along the Ohio and Erie Canal through Cuyahoga Valley National Park and Cleveland Metroparks | Historic | |
| NSB | Ohio River Scenic Byway | 943.0 | 1,517.6 | Illinois, Indiana, Ohio | US 60/US 62 at the Cairo Mississippi River Bridge in Cairo | SR 39 at the Pennsylvania border near East Liverpool | September 19, 1996 (Indiana) June 9, 1998 (Illinois, Ohio) | Follows the north bank of the Ohio River | Historic | |
| NSB | Old Canada Road Scenic Byway | 78.2 | 125.9 | Maine | US 201 and SR 43 near Madison | US 201 at the Canadian border | June 15, 2000 | Historic route between Maine and Quebec along the Kennebec River | Scenic | |
| NSB | Old Frankfort Pike Historic and Scenic Byway | 15.5 | 24.9 | Kentucky | KY 1681 and US 60 near Frankfort | KY 1681 and KY 4 in Lexington | February 16, 2021 | Rural route through the historic inner Bluegrass Region | Historic | |
| NSB | Old Kings Highway (Route 6A) | 34.0 | 54.7 | Massachusetts | Sandwich Road and US 6 in Bourne | Route 6A and US 6 in Orleans | February 16, 2021 | Route through Cape Cod traversing numerous National Historic Districts | Historic | |
| NSB | Ormond Scenic Loop & Trail | 36.0 | 57.9 | Florida | SR 40 in Ormond Beach | Bulow Creek State Park | February 16, 2021 | Loop route connecting numerous state and local parks along Florida's Surf Coast | Scenic | |
| NSB | Outback Scenic Byway | 170.0 | 273.6 | Oregon | California–Oregon state line on US 395 | OR 31 and US 97 near La Pine | June 9, 1998 | Scenic drive through rugged backcountry of south-central Oregon | Natural | |
| NSB | Outer Banks Scenic Byway | 137.8 | 221.8 | North Carolina | US 70 near Beaufort | NC 12 and US 64 in Nags Head | October 16, 2009 | Connects the barrier islands, beaches, and lighthouses of the Outer Banks | Cultural | |
| AAR | Pacific Coast Scenic Byway-Oregon | 363.0 | 584.2 | Oregon | California–Oregon state line on US 101 | Oregon–Washington state line on US 101 | June 9, 1998 (NSB) June 13, 2002 (AAR) | Scenic drive along the entire length of Oregon's Pacific coast | Natural, Scenic | |
| NSB | Palisades Scenic Byway | 57.5 | 92.5 | New Jersey, New York | Palisades Parkway at US 9 / George Washington Bridge in Fort Lee | US 6 and US 202 at the Highland Falls, New York in Highland Falls | February 16, 2021 | Route along the Hudson River and the Palisades cliffs | Scenic | [128] [129] |
| NSB | Paul Bunyan Scenic Byway | 54.0 | 86.9 | Minnesota | Loop route connecting: Pequot Lakes, Pine River | Loop route connecting: Manhattan Beach, Crosslake | September 22, 2005 | Passes through the North Woods of central Minnesota | Recreational | |
| NSB | Payette River Scenic Byway | 112.0 | 180.2 | Idaho | SH 55 at SH 44 in Eagle | ID 55 at US 95 in New Meadows | June 13, 2002 | Traverses foothills and the Long Valley along the Payette River in Idaho | Recreational | |
| NSB | Pend Oreille Scenic Byway | 33.0 | 53.1 | Idaho | SH 200 at US 2/US 95 in Ponderay | SH 200 and MT 200 at the Montana state line near Clark Fork | June 13, 2002 | Scenic drive along Lake Pend Oreille | Recreational | |
| NSB | Peter Norbeck Scenic Byway | 68.0 | 109.4 | South Dakota | Loop connecting: Custer via SD 87 and SD 89 | Loop connecting: Keyston via US 16A and SD 244 | September 19, 1996 | Scenic drive through the Black Hills National Forest, Custer State Park, and the Mount Rushmore environs of southwestern South Dakota | Scenic | |
| NSB | Pine Barrens Byway | 130.0 | 209.2 | New Jersey | Route 47 in Maurice River Township | US 9 in Tuckerton | February 16, 2012 | Rural route through the largest remaining coastal pine barren ecosystem | Natural | |
| NSB | Pioneer Historic Byway | 127.0 | 204.4 | Idaho | US 91 at the Utah state line near Franklin | SH 34 at the Wyoming state line near Freedom | September 22, 2005 | Scenic route exploring the rich pioneer history of southeastern Idaho, including Mormon settlements and Oregon Trail ruts | Historic | |
| NSB | Pyramid Lake Scenic Byway | 30.2 | 48.6 | Nevada | Washeim and Main streets in Wadsworth | NV 447 near Nixon; NV 446 and Hardscrabble Canyon Road in Sutcliffe | September 19, 1996 | One of the largest desert lakes in the world | Natural | |
| NSB | Rangeley Lakes Scenic Byway | 35.6 | 57.3 | Maine | SR 17 near Houghton | SR 4 near Madrid | June 15, 2000 | Scenic drive along the northern Appalachian ridgeline and the forests and lakes of the Western Maine Mountains | Recreational | |
| NSB | Red River Gorge Scenic Byway | 46.0 | 74.0 | Kentucky | KY 11 at KY 715 in Zachariah | KY 11 at KY 213 in Stanton | June 13, 2002 | Scenic drive through the Red River Gorge | Natural | |
| AAR | Red Rock Scenic Byway | 7.5 | 12.1 | Arizona | I-17 north of Rimrock | SR 89A in Sedona | September 22, 2005 | Scenic drive through the red sandstone canyons of the Coconino National Forest | Scenic, Recreational | |
| NSB | Religious Freedom Byway | 195 | 314 | Maryland | MD 234 near Port Tobacco | MD 5 at Point Lookout State Park | October 16, 2009 | Provides access to historic churches and the first capital of Maryland, St. Mary's City | Historic | |
| NSB | Revolutionary Heritage Byway | 6.0 | 9.7 | Rhode Island | Route 114 at the Mount Hope Bridge | Route 114 at Bristol-Warren town line | February 16, 2021 | Exemplifies the culture of colonial New England and the site of the oldest continuous Independence Day celebration | Historic | |
| NSB | River of Lakes Heritage Corridor | 156.0 | 251.1 | Florida | SR 415 in Sanford | River Drive in Oak Hill; US 17 near Seville | February 16, 2021 | Tours through the lakelands of the Halifax Area, site of some of the earliest settlements in Florida | Historic | |
| NSB | River Road Scenic Byway | 23.5 | 37.8 | Michigan | M-65 and Rollways Road near Hale | US 23 in Oscoda | September 22, 2005 | Scenic drive through the Au Sable River Valley | Recreational | |
| NSB | Rogue-Umpqua Scenic Byway | 172.0 | 276.8 | Oregon | OR 234 at I-5 in Gold Hill | OR 138 at I-5 in Roseburg | June 13, 2002 | Follows two scenic rivers through southwestern Oregon | Recreational | |
| AAR | Route One, Big Sur Coast Highway | 72.0 | 115.9 | California | San Luis Obispo–Monterey county line | Ocean Avenue in Carmel | September 19, 1996 | Scenic drive along the Pacific coast | Historic, Scenic | |
| AAR | Route One, San Luis Obispo North Coast Byway | 57.0 | 91.7 | California | US 101 in San Luis Obispo | San Luis Obispo–Monterey county line | June 13, 2002 | Scenic drive along the Pacific coast | Historic, Scenic | |
| NSB | Russell-Brasstown Scenic Byway | 40.6 | 65.3 | Georgia | SR 348, SR 17, SR 75 near Robertstown | SR 180 at Brasstown Bald | June 15, 2000 | Winds through the southern Appalachians and the highest point in Georgia | Scenic | |
| AAR | San Juan Skyway | 233.0 | 375.0 | Colorado | US 160 in Durango; SSR 145 in Cortez | SR 62 in Ridgway; US 550 in Ouray | September 19, 1996 | Loop through the San Juan Mountains, Colorado's most rugged and isolated mountain range | Historic, Scenic | |
| NSB | Sandhills Journey Scenic Byway | 272.0 | 437.7 | Nebraska | N-2 in Alliance | NE 2 in Grand Island | February 16, 2021 | Route through the ecologically unique Sand Hills, the largest dunefield in the western hemisphere | Natural | |
| NSB | Santa Fe Trail Scenic and Historic Byway | 565.0 | 909.3 | Colorado, New Mexico | Santa Fe Plaza in Santa Fe | US 50/US 400 at the Kansas state line near Holly; NM 410 at the Oklahoma state line near Clayton | June 9, 1998 | Follows part of the route of the historic Santa Fe Trail through scenic mountains and high plains | Historic | |
| NSB | Savannah River Scenic Byway | 110.0 | 177.0 | South Carolina | SC 28 at the Georgia border near Clarks Hill | SC 24 in Oakway | June 9, 1998 | Scenic drive along the Savannah River in rural South Carolina | Historic | |
| AAR | Scenic Byway 12 (Journey Through Time) | 124.0 | 199.6 | Utah | US 89 near Panguitch | SR 24 near Torrey | June 13, 2002 (AAR) | Scenic drive through canyons, plateaus, and valleys | Historic, Scenic | |
| NSB | Scenic Byway 143 - Utah's Patchwork Parkway | 51.0 | 82.1 | Utah | SR 143 at I-15 in Parowan | UT 143 at US 89 in Panguitch | October 16, 2009 | Scenic drive through Dixie National Forest and Cedar Breaks National Monument | Historic | |
| NSB | Scenic Highway 30A | 32.0 | 51.5 | Florida | CR 30A at US 98 near Santa Rosa Beach | CR 30A at US 98 near Rosemary Beach | February 16, 2021 | Local route through historic beach communities on Florida's Emerald Coast | Natural | |
| NSB | Scenic Highway of Legends | 82.0 | 132.0 | Colorado | SH 12 near Stonewall | US 160 in Walsenburg; SH 12 in Trinidad | February 16, 2021 | Route through undisturbed cultural crossroads in the Spanish Peaks | Natural | |
| NSB | Schoodic Scenic Byway | 29.0 | 46.7 | Maine | US 1 in Hancock | SSR 186 at SR 195 in Prospect Harbor | June 15, 2000 | Unspoiled coastline through the Schoodic Peninsula and the "quiet side" of Acadia National Park | Scenic | |
| AAR | Selma to Montgomery March Byway | 54.0 | 86.9 | Alabama | J.L. Chestnut Jr. Boulevard and Martin Luther King Street in Selma | Alabama State Capitol in Montgomery | September 19, 1996 | Historic route of the 1965 Selma to Montgomery marches led by Martin Luther King Jr. | Historic, Natural | |
| NSB | Sequatchie Valley Scenic Byway | 65.0 | 104.6 | Tennessee | SR 28 at I-24 in Jasper | SR 28 / US 127 at I-40 in Crossville | February 16, 2021 | Route through one of the most undisturbed valleys in the Appalachians | Scenic | |
| AAR | Seward Highway | 125.3 | 201.7 | Alaska | Railway Avenue in Seward | East 5th Avenue in Anchorage | June 9, 1998 (NSB) June 15, 2000 (AAR) | Showcases the peaks and fjords of south-central Alaska | Recreational, Scenic | |
| NSB | Sheyenne River Valley Scenic Byway | 63.0 | 101.4 | North Dakota | ND 32 in Lisbon | CR 21 north of Valley City | June 13, 2002 | Historic drive through quaint farmland along the Sheyenne River | Historic | |
| NSB | Silver Thread Colorado Scenic & Historic Byway | 117.0 | 188.3 | Colorado | SH 149 and US 160 in South Fork | SH 149 and US 50 in Curecanti National Recreation Area | February 16, 2021 | Route tracing the geological and mining history in the San Juan Mountains | Historic | |
| NSB | Sky Island Scenic Byway | 27.2 | 43.8 | Arizona | Catalina Highway north of Tucson | Catalina Highway in Summerhaven | September 22, 2005 | Climb from the Sonoran Desert through Coronado National Forest to the peak of Mount Lemmon in the Catalina Mountains | Natural | |
| NSB | Skyline Drive | 105.0 | 169.0 | Virginia | US 250 near I-64 in Rockfish Gap | US 340 near Front Royal | September 22, 2005 | Scenic drive through Shenandoah National Park | Scenic | |
| NSB | St. John Valley Cultural Byway/Fish River Scenic Byway | 134.0 | 215.7 | Maine | SR 161 in Allagash; SR 11 at Portage Lake | US 1 in Hamlin | February 16, 2021 | Route through the Saint John and Fish river valleys in the rural "County" of northern Maine | Cultural | |
| NSB | Staunton-Parkersburg Turnpike | 180.0 | 289.7 | West Virginia | WV 47 and WV 618 in Parkersburg | West Virginia–Virginia state line on US 250 | September 22, 2005 | Historic drive through West Virginia forests and backcountry | Historic | |
| NSB | Stevens Pass Greenway | 89.2 | 143.6 | Washington | US 2 near Monroe | US 2 in Cashmere | September 22, 2005 | Scenic drive across the Cascades | Recreational | |
| NSB | Strait of Juan de Fuca Highway - SR 112 | 61.1 | 98.3 | Washington | Makah Indian Reservation boundary near Neah Bay | US 101 near Port Angeles | June 15, 2000 | Follows the shoreline of the Olympic Peninsula where it meets the Strait of Juan de Fuca | Natural | |
| NSB | Talimena Scenic Drive | 54.0 | 86.9 | Arkansas, Oklahoma | SH 1 and US 271 near Talihina | AR 88 and US 71 in Mena | September 22, 2005 | Crest drive through the Ouachita Mountains, some of the highest ridges between the Appalachians and Rockies | Scenic | |
| NSB | Talladega Scenic Drive | 26.4 | 42.5 | Alabama | Adams Gap Road southwest of Cheaha State Park | US 78 west of Heflin | June 9, 1998 | Scenic drive through the southernmost extension of the Appalachian Mountains | Scenic | |
| AAR | The Battle Road Scenic Byway | 16.0 | 25.7 | Massachusetts | Barrett's Mill Road near Minuteman National Historical Park in Concord | Massachusetts Avenue at Alewife Brook in Arlington | February 16, 2021 | Connects sites of literary, technological, and environmental importance to the American Revolution | Historic, Cultural | |
| NSB | Tioga Road/Big Oak Flat Road | 64.0 | 103.0 | California | Big Oak Flat entrance gate to Yosemite | Tioga Pass entrance gate to Yosemite | September 19, 1996 | High mountain pass through Yosemite National Park | Natural | |
| NSB | Top of the Rockies | 75.0 | 120.7 | Colorado | SH 82 in Aspen | I-70 west of Vail; I-70 near Copper Mountain | June 9, 1998 October 16, 2009 (extended) | Scenic high-altitude drive through the Rocky Mountains and historic Leadville | Scenic | |
| NSB | Trail of the Ancients | 1,271.0 | 2,045.5 | Colorado, Utah, New Mexico | Loop connecting: Monument Valley, Zuni Pueblo, El Malpais National Monument | Loop connecting: Natural Bridges National Monument, Monticello, Mesa Verde National Park | September 22, 2005 February 16, 2021 (NM) | Scenic drive through the Native American history of the Four Corners region | Archeological | |
| NSB | Trail of the Mountain Spirits Scenic Byway | 95.0 | 152.9 | New Mexico | US 180 in Silver City; NM 35 and NM 152 in San Lorenzo | NM 15 at Gila Cliff Dwellings National Monument | September 22, 2005 | Scenic drive through the mountains of southwestern New Mexico | Natural | |
| AAR | Trail Ridge Road/Beaver Meadow Road | 48.0 | 77.2 | Colorado | US 34 near Grand Lake | Loop connecting: Moraine Avenue and West Elkhorn Avenue in Estes Park | September 19, 1996 (AAR) | America's highest continuously paved road crosses the alpine tundra of Rocky Mountain National Park | Natural, Scenic | |
| NSB | Turquoise Trail | 62.0 | 99.8 | New Mexico | NM 14 at NM 333 in Tijeras | NM 14 at I-25 in Santa Fe | June 15, 2000 | High route between Albuquerque and Santa Fe | Scenic | |
| AAR | Volcanic Legacy Scenic Byway | 500.0 | 804.7 | California, Oregon | A bypass around Lake Almanor | US 97 and OR 138 at Diamond Lake Junction | June 9, 1998 (AAR, Oregon) June 13, 2002 (AAR, California) | Scenic drive through the Cascade Volcanic Arc | Natural, Recreational | |
| NSB | Washington Heritage Trail | 136.0 | 218.9 | West Virginia | WV 9 in Paw Paw | WV 51 in Harpers Ferry | June 15, 2000 | Scenic drive tracing the footsteps of George Washington through West Virginia's Eastern Panhandle | Historic | |
| NSB | West Cascades Scenic Byway | 220.0 | 354.1 | Oregon | OR 58 in Oakridge | OR 224 in Estacada | June 15, 2000 | Intimate backcountry tour of old-growth forests, rivers, and lakes along the west side of the Cascades | Scenic | |
| NSB | Western Heritage Historic Byway | 40.0 | 64.4 | Idaho | Swan Falls Road at the Swan Falls Dam | SH 69 at I-84 in Meridian | September 22, 2005 | Scenic drive to the Snake River Canyon | Scenic | |
| NSB | Western Highlands Scenic Byway | 21.4 | 34.4 | New Jersey | CR 515 at Route 23 in Hardyston Township | Route 94 at the New York state line in Vernon Township | February 16, 2021 | Route through the central Appalachian Highlands in the Skylands Region of New Jersey | Recreational | |
| NSB | Wetlands and Wildlife Scenic Byway | 76.7 | 123.4 | Kansas | NE 70th Street and US 281 near St. John | US 281 and K-4 near Hoisington | September 22, 2005 | Scenic drive through wetlands of central Kansas | Natural | |
| NSB | White Mountain Trail | 100.0 | 160.9 | New Hampshire | US 3 near Lincoln | US 302 in Conway | June 9, 1998 | Passes through the White Mountains and past Mount Washington | Scenic | |
| NSB | White Pass Scenic Byway | 120.0 | 193.1 | Washington | US 12 at I-5 near Chehalis | US 12 at SR 410 near Naches | October 16, 2009 | Scenic route through Wenatchee and Gifford Pinchot National Forests, across the Cascades through White Pass | Recreational | |
| NSB | Whitewater Canal Scenic Byway | 430.0 | 692.0 | Indiana | Loop connecting: Lawrenceburg, Batesville on SR 101, SR 46, SR 350 | Loop connecting: Hagestown, West Harrison on SR 1, SR 121, US 52, US 27, US 40 | February 16, 2021 | Follows a canalway connecting the National Road to the Ohio River Valley | Recreational | |
| NSB | Wichita Mountains Byway | 93.0 | 149.7 | Oklahoma | Loop connecting: Wichita Mountains Wildlife Refuge, Medicine Park on SH 49 | Loop connecting: Carnegie, Apache on SH 115, SH 58, SH 19 | October 16, 2009 | Guides drivers through the protected valleys of the 550 million-year-old Wichita Mountains | Natural | |
| NSB | Wilderness Road Heritage Highway | 93.8 | 151.0 | Kentucky | US 25E at the Cumberland Gap near Middlesboro | US 25 in Berea | June 13, 2002 | Follows Daniel Boone's historic entrance to the valleys of Kentucky | Historic | |
| NSB | Wisconsin Lake Superior Scenic Byway | 70.4 | 113.3 | Wisconsin | WIS 13 near Brule | WIS 13 and US 2 near Ashland | February 16, 2021 | Follows the Lake Superior coastline through the Bayfield Peninsula near Apostle Islands National Lakeshore | Natural | |
| NSB | Woodlands Trace | 43.0 | 69.2 | Kentucky, Tennessee | SR 49 near Dover | KY 453 near Grand Rivers | February 16, 2021 | Ridge-top route through Land Between the Lakes National Recreation Area | Recreational | |
| AAR | Woodward Avenue (M-1) – Automotive Heritage Trail | 25.5 | 41.0 | Michigan | Jefferson Avenue in Detroit | Cesar E. Chavez Boulevard in Pontiac | June 13, 2002 (NSB) February 16. 2021 (AAR) | Connects automobile-related historic sites of the "Motor City" | Cultural, Historic | |
| NSB | Zion Scenic Byway | 28.0 | 45.1 | Utah | SR 9 at SR 17 in La Verkin | SR 9 at Zion National Park boundary near Mt. Carmel Junction | February 16, 2021 | Scenic route through Zion Canyon, the Mt. Carmel Tunnel, and the red rock country of southern Utah | Scenic | |

## Former byways

| Name | State(s) | Description |
| Catoctin Mountain Scenic Byway | Maryland, Virginia | Incorporated into part of the Journey Through Hallowed Ground National Scenic Byway |
| Dry Cimarron Scenic Byway | New Mexico, Oklahoma | De-designated in 2010 |
| Tamiami Trail Scenic Highway | Florida | De-designated in 2008 |