On a typical residential street, the state’s right-of-way extends about 11 to 15 feet past the edge of the pavement on each side. Along a major highway or rural interstate, that distance can reach 100 feet or more. The full corridor the state controls, measured across the whole road, runs roughly 50 to 60 feet on a quiet neighborhood street and up to 300 feet or more along a rural freeway. How many feet off the road the state owns in front of your specific property depends on the recorded right-of-way for that stretch of road, which was set when the road was designed and filed on a plat map.
Typical Right-of-Way Widths by Road Type
The right-of-way is the full corridor of land reserved for the road, its shoulders, drainage ditches, sidewalks, utility lines, and future expansion. It always extends past the pavement you can see. Widths are set by the road’s classification, expected traffic, speed, and the space needed for shoulders, medians, and drainage.
- Residential or minor streets: 50 to 60 feet total, about 25 to 30 feet from the centerline in each direction.
- Collector streets that feed neighborhood traffic onto larger roads: 60 to 80 feet total.
- Major arterials and state highways: 80 to 120 feet total.
- Urban freeways and interstates: around 150 feet total.
- Rural freeways and interstates: up to 300 feet total, sometimes more where interchanges, wide medians, or steep grades demand extra space.
These are guidelines, not universal rules. Every corridor was surveyed individually when it was built, so the actual right-of-way for your stretch of road may be wider or narrower than the typical range. Older roads platted in the 1800s sometimes have unusually narrow corridors, while roads built with future widening in mind may have extra-wide ones.
For federal-aid highway projects, the Federal Highway Administration requires that right-of-way acquisition follow the procedures in 23 CFR Part 710, which mandates a width “sufficient to accommodate the roadway cross section elements and requisite appurtenances.”1eCFR. 23 CFR Part 710 – Right-of-Way and Real Estate State transportation departments then set their own design standards for each road class.
How to Find the Exact Right-of-Way for Your Property
Ranges are useful background. What you actually need is the specific number for your address. Four ways to get it, in rough order of cost:
- Check your deed and plat map. Your deed should reference a recorded plat or survey showing the lot’s legal boundaries. If your lot line meets a right-of-way, the plat usually notes the width. County recorder offices maintain these records and many now offer them online.
- Search your county’s GIS maps. Most counties publish free online geographic information system maps that overlay property lines, parcel numbers, and sometimes right-of-way boundaries on satellite imagery. Look for your county’s assessor or GIS portal.
- Call the local road authority. For state highways, contact the district office of your state DOT. For city or county roads, the local engineering department can tell you the width for a specific segment.
- Hire a licensed surveyor. When accuracy matters, a professional boundary survey is the definitive answer. Surveyors locate original monuments, compare them against recorded documents, and mark the boundaries physically. Residential surveys typically run $800 to $6,000, more for large, wooded, or irregular parcels.
Municipalities often require a current survey before issuing building permits for structures near the road. Confirming the boundary before you put in a fence or shed can save you the cost of tearing it out later.
Does the State Actually Own It, or Just Have an Easement?
The phrase “state owns” oversimplifies things, and that oversimplification is where many property disputes start. Government interest in a road corridor takes one of two legal forms.
When the government acquires land in fee simple, it owns the land outright. You have no remaining property interest in that strip. This is common for interstate highways and major arterials where the state purchased or condemned the land during construction.
When the government holds an easement, it has the right to use the land for road purposes, but you still own the underlying property. Your use is restricted by the easement terms, and if the road is ever abandoned, the land reverts to you. Many residential streets, especially older ones where roads were built across privately owned land by petition or agreement, work this way.
Your deed or a title search will clarify which applies. If the legal description of your lot extends to the road’s centerline, you likely own the underlying land subject to a road easement. If your lot stops at the right-of-way boundary, the state probably holds the land in fee simple. The distinction matters for property taxes, for what you can do with the strip, and for what happens if the road ever closes.
What the State’s Control Means for You
Whether the state owns the strip outright or holds an easement, the practical effect on the ground is much the same: it’s public land reserved for transportation, and you can’t treat it like your yard.
You May Still Have to Maintain It
One of the frustrating quirks: the state or city controls the land, but you’re often responsible for maintaining it. That grass strip between the sidewalk and the curb, sometimes called the parkway or tree lawn, is almost always inside the right-of-way. Yet in most municipalities, the adjacent property owner must mow, water, and maintain it.
The same principle applies to sidewalks. A majority of cities require property owners to clear snow and ice from public sidewalks adjacent to their property, often within a set number of hours after a snowfall. Failure can bring fines, and in many jurisdictions it can expose you to a personal injury claim if someone slips. Courts in many places have held owners liable for hazards on public sidewalks next to their land, especially where an ordinance imposes a maintenance duty.
Trees within the right-of-way follow local rules. Some cities take full responsibility for street trees; others require the adjacent owner to trim branches over the sidewalk or road. Check your local code rather than assume.
Mailboxes
Curbside mailboxes sit in the right-of-way by design. The U.S. Postal Service requires the bottom of the box to be 41 to 45 inches above the road surface and set back 6 to 8 inches from the curb.2USPS. Mailbox Installation The Federal Highway Administration recommends a 4-by-4-inch wooden post or a 2-inch-diameter steel or aluminum pipe, buried no more than 24 inches deep, so the support bends or breaks away on impact. Heavy metal pipes, concrete posts, and novelty supports like concrete-filled milk cans are specifically discouraged because they can cause serious injury in a collision.
Fences and Walls
Most local codes require fences to be set back at least 2 to 3 feet from the right-of-way boundary. Building inside the right-of-way without permission is an encroachment, and the road authority can order you to remove it at your expense. Even on your private lot, height limits usually apply near the road for visibility, commonly capping front yard fences at 3 to 4 feet.
Driveways and Culverts
Your driveway crosses the right-of-way, and that crossing requires permission. For state highways, you typically need a driveway access permit from the state DOT. Permits specify the driveway width, apron design, and drainage requirements. If a drainage ditch runs along the road, the permit will require a culvert pipe large enough to carry stormwater without flooding neighbors. Residential driveway permits typically cost $50 to $150, and the culvert and installation come out of your pocket.
Signs and Billboards
Placing a sign in the right-of-way itself without a permit is illegal in every state, and unauthorized signs are typically removed without notice. Commercial signs along highways are also regulated at both the state and federal level well beyond the right-of-way line, with permit, zoning, size, and spacing requirements.
Utility Lines
Electric, gas, water, sewer, cable, and telecommunications lines frequently run through the right-of-way under easements granted by the government, and federal regulations encourage sharing highway corridors for utility purposes when safety allows.3eCFR. 23 CFR Part 645 Subpart B – Accommodation of Utilities Two practical consequences for you. Before digging anywhere near the road, call 811 to have underground utilities marked; hitting a gas line or fiber cable can bring injury, outages, and significant penalties. And if a utility company needs to access lines running through the right-of-way portion of your property, you generally can’t refuse, though the company must restore the area afterward.
Corner Lots Have an Extra Restriction
If your property sits on a corner, you’re subject to a rule that catches many homeowners off guard, and it applies even to areas outside the right-of-way itself. Traffic engineers designate a “sight triangle” at every intersection, an area where nothing tall enough to block a driver’s view is allowed. The triangle is measured by extending a set distance along the curb in each direction from the corner and drawing a diagonal between those two points.
Dimensions vary by jurisdiction and speed limit. A common standard is 40 feet along each curb from the intersection; higher-speed roads require longer sight lines. Within the triangle, municipalities typically prohibit structures, fences, and vegetation above roughly 30 to 36 inches. You may not be able to grow a tall hedge, install a privacy fence, or place a large boulder near your corner, even if it sits entirely on your private property. If a plant grows into the triangle over time, the city can order you to trim or remove it.
What Happens If You Encroach
Building, planting, or excavating in the right-of-way without permission is an encroachment, and road authorities take it seriously. The consequences usually follow a predictable escalation.
- Written notice to remove, typically within 14 to 30 days. Some jurisdictions hold a hearing first, giving you a chance to explain or request an accommodation.
- Forced removal at your expense if you don’t comply. You generally have no right to compensation for the structure, even if you spent thousands on it.
- Fines, especially for unauthorized excavation near underground utilities, which carry civil penalties that escalate with repeat violations.
- Liability exposure. If your unauthorized structure injures someone, you bear it. A decorative rock wall in the right-of-way that a car strikes at night, an unlit planter box on the sidewalk, or a sprinkler head that ices the road can all generate claims against you.
In limited cases, road authorities issue encroachment permits for minor, non-permanent items like landscaping. The permit typically requires you to remove the item at your own cost whenever the road authority needs the space, and to carry liability insurance. Ask for the permit before you dig, not after.
If the State Wants More Land for the Road
When a road needs to be widened, the existing right-of-way may not be enough. The Fifth Amendment permits the government to take private property for public use, but requires just compensation: “nor shall private property be taken for public use, without just compensation.”4Congress.gov. Amdt5.10.1 Overview of Takings Clause
In practice, the government must pay fair market value for any land it takes to expand a right-of-way. If only a strip of your front yard is needed, that’s a partial taking, and your compensation should reflect both the value of the land taken and any reduction in the value of what remains. Projects using federal highway funding must also comply with the Uniform Relocation Assistance and Real Property Acquisition Policies Act, which requires a written offer based on an appraisal, a reasonable time to respond, and relocation assistance if you’re displaced.5Office of the Law Revision Counsel. 23 USC 108 – Advance Acquisition of Real Property You have the right to negotiate, hire your own appraiser, and challenge the government’s valuation in court.