Texas county road laws are set primarily by the Texas Transportation Code, and the commissioners court in each county is the body that puts those laws into practice. Counties decide which roads are county roads, control the right-of-way alongside them, issue the permits for driveways and utility work, set weight and speed limits, and enforce penalties when someone damages, obstructs, or dumps on the road. Cities regulate roads inside city limits; the county’s authority runs through the unincorporated areas.
Who Controls County Roads in Texas
Counties in Texas can only do what the state constitution or a statute expressly allows them to do. For roads, that authority sits mainly in Chapter 251 of the Transportation Code, which lets each commissioners court make and enforce rules for the construction and maintenance of public roads, designate which roads count as county roads, allocate funding, and set permit fees for work in the right-of-way.1State of Texas. Texas Transportation Code Chapter 251 – General County Authority Relating to Roads and Bridges
Money for county roads comes from property taxes, vehicle registration fees, and state grants, and counties often partner with the Texas Department of Transportation on projects where state highways meet county roads. Where a road sits on or near a city boundary, counties and cities can use interlocal agreements under Chapter 791 of the Texas Government Code to divide maintenance responsibilities.
Right-of-Way and What You Can Put in It
A right-of-way is the strip of land the county controls so the public can travel through it. An easement is narrower: a specific right granted to a specific party, often for drainage or private access. Both are documented in recorded deeds, county maps, or plats, and both limit what a property owner can build near the road.
Putting a fence, gate, or extended driveway inside the county right-of-way without permission can lead to forced removal, a fine, or a lawsuit. If you’re not sure where the right-of-way line falls on your property, check with the county engineer’s office and pull your property survey before you build. A landowner who thinks a right-of-way is no longer needed can petition the commissioners court to abandon it, but the court decides, and it can say no.
How a Road Becomes a County Road
In counties with 50,000 or fewer residents, Chapter 281 of the Transportation Code sharply limits how a private road can turn into a public one. The county can acquire a public interest in a private road only by purchase, condemnation, written dedication to the commissioners court, or a court’s final judgment of adverse possession.2State of Texas. Texas Transportation Code Chapter 281 – Acquisition of Public Interest in Private Roads in Certain Counties Oral dedication doesn’t count. Neither does the fact that the county spent public money maintaining the road.
This is meaningful protection for rural landowners. The older idea that long informal public use could quietly convert a private drive into a public road is largely gone in smaller counties, though roads that became public before August 31, 1981 may still be recognized under earlier doctrines.3Texas Attorney General. Letter Opinion No. 95-078 In larger counties, public roads can still arise through prescriptive use or implied dedication, and courts weigh usage patterns, maintenance records, and old maps when a dispute breaks out.
When the County Takes Land for a Road
If a county needs private land to widen or improve a road, it can use eminent domain under Chapter 21 of the Texas Property Code and must pay just compensation based on fair market value.4Justia. Texas Property Code Chapter 21 – Eminent Domain When federal money is involved in the project, the Uniform Relocation Act adds protections: the property must be independently appraised before negotiations begin, the appraisal must meet professional standards, and any occupant being displaced must get at least 90 days’ written notice before having to move.5eCFR. 49 CFR Part 24 – Uniform Relocation Assistance and Real Property Acquisition
Permits Before You Build a Driveway, Culvert, or Connection
Anything you build on, across, or connected to a county road needs a county permit first. Chapter 251 lets commissioners courts require permits for new driveway connections, culverts, drainage structures, and other work that touches the road or the right-of-way. Skipping the permit can bring fines, an order to tear out what you built, or both.
Applications typically require detailed plans showing the scope of work, the materials, and how the project affects drainage, traffic flow, and neighboring property. A county engineer or road administrator reviews the plans against safety and engineering standards. Projects that change water flow or sit in flood-prone areas usually need a drainage study.
Permit Fees and Bonds
Fees vary by county and by project. A simple residential driveway connection can cost around $100 to $165. A commercial driveway permit often runs $500 or more. Utility excavation permits can reach several thousand dollars. Some counties double the fee when construction has already started before the permit is issued.6Fort Bend County. Right of Way and Driveway Permits Counties may also require a performance bond to guarantee that any damage to the road gets repaired. Fort Bend County, for example, sets driveway connection bonds at a $5,000 starting point, with roadway paving bonds covering 100% of project costs.
If a project needs a temporary road closure or major traffic control, expect the county to loop in the sheriff or constable. Counties often set completion deadlines and can pull a permit that runs past them.
Federal Water Rules
A county permit alone doesn’t cover federal water law. If your work places fill material or a culvert in waters of the United States, you may need a Section 404 permit from the U.S. Army Corps of Engineers under the Clean Water Act. The federal design guidelines require any culvert to pass both low and high flows while keeping water circulating and letting wildlife move through.7eCFR. 40 CFR Part 230 – Section 404(b)(1) Guidelines for Disposal Sites for Dredged or Fill Material Violating the federal rule carries its own penalties on top of anything the county imposes.
Weight Limits on County Roads
Heavy vehicles do most of the damage to county roads, and Texas law gives commissioners courts direct authority to limit what can drive over them. This is the part that matters most to farmers hauling equipment, oilfield operators, and anyone moving construction materials on rural roads.
The State Baseline
Section 621.101 of the Transportation Code sets the default limits for any vehicle on a public road: 20,000 pounds on a single axle, 34,000 pounds on a tandem axle, and 80,000 pounds gross vehicle weight. Vehicles powered primarily by natural gas or electric batteries can go 2,000 pounds over the gross limit, to a maximum of 82,000 pounds. The federal bridge formula also applies, tying maximum allowable weight to axle spacing.
Lower Limits Set by the County
A commissioners court can post lower limits on a specific road, bridge, or culvert under Section 621.301. The county has to submit load limit documentation reviewed and sealed by a licensed engineer to TxDOT, and TxDOT’s concurrence is deemed granted if it doesn’t respond within 30 days. The lower limit takes effect once the county puts up the signs.8State of Texas. Texas Transportation Code Section 621.301 – County’s Authority to Set Maximum Weights
Overweight Fines
Overweight violations are misdemeanors, with fines that scale by how far over the limit the vehicle runs. For single or tandem axle violations, the schedule is:
- Less than 2,500 pounds over: $100 to $500
- 2,500 to 5,000 pounds over: $500 to $1,000
- More than 5,000 pounds over: $1,000 to $2,500
Gross weight violations follow a similar schedule. For an operator running multiple loads, the fines add up fast, and repeat violations attract extra attention from law enforcement.
Utility Work in the Right-of-Way
Electric, water, gas, and telecommunications providers need county approval before they dig or string lines in a county road right-of-way. Chapter 181 of the Texas Utilities Code gives electric utilities the right to build and maintain lines on county roads and state highways, but they have to give the county notice first.9Justia. Texas Utilities Code Chapter 181, Subchapter C – Provisions Applying to Electric Utilities Telephone and telegraph companies have parallel authority, so long as they don’t get in the way of public use of the road.10State of Texas. Texas Utilities Code Section 181.082 – Authority to Install Facility in Relation to Public Property
Providers submit plans showing the location, depth, and construction method. Buried lines have to meet minimum depth requirements to keep out of the way of future road work. Overhead lines have to keep specified clearances above the roadway. Engineering and safety standards for utility placement in the right-of-way sit in the Texas Administrative Code and are administered through TxDOT.11Cornell Law School / Legal Information Institute (LII). 43 Texas Administrative Code, Subchapter C – Utility Accommodation
One quirk worth knowing: when an area with existing utility lines gets incorporated as a city, the utility can keep operating under its original county-road authority for up to 10 years after incorporation. After that, the new city can require the utility to move poles or lines to make room for street work, with at least 30 days’ notice.12State of Texas. Texas Utilities Code Section 181.047 – Effect of Municipal Incorporation on Line Previously Constructed
Speed Limits and Reckless Driving
Commissioners courts set or change speed limits on county roads under Sections 545.355 and 251.154 of the Transportation Code. Any change has to rest on an engineering and traffic investigation that considers road conditions, land use, and crash history. The county can’t just pick a number.
Sheriffs and constables handle enforcement in unincorporated areas. Speeding fines vary by county and by how far over the limit you were going. In many counties, fines run from around $190 for 1 to 10 mph over up to $290 or more for 26 to 30 mph over, with much steeper amounts in school and construction zones.
Reckless driving is a separate offense under Section 545.401, defined as driving with willful or wanton disregard for the safety of people or property. The statutory penalty is a fine of up to $200, up to 30 days in county jail, or both.13State of Texas. Texas Transportation Code Section 545.401 – Reckless Driving Offense The dollar figure is low, but a conviction creates a criminal record and can push insurance rates well beyond the fine.
Obstructing or Dumping on a County Road
Damaging the road, blocking it, or dumping on it can bring civil penalties, criminal charges, or both. Under Chapter 251, a commissioners court can order restoration of a damaged road and place a lien on the responsible owner’s property to recover repair costs.
Intentionally blocking a county road can be prosecuted as obstructing a highway or passageway under Section 42.03 of the Texas Penal Code. The base offense is a Class B misdemeanor, punishable by up to 180 days in jail and a fine of up to $2,000. It becomes a state jail felony if the obstruction stops an emergency vehicle or blocks access to a hospital or emergency medical facility.14State of Texas. Texas Penal Code Chapter 42 – Disorderly Conduct and Related Offenses
Dumping litter, debris, or solid waste on or within 300 feet of a public road is a criminal offense under Chapter 365 of the Texas Health and Safety Code. Penalties scale with the amount:
- 5 pounds or less, or 5 gallons of liquid: Class C misdemeanor, fine up to $500
- 5 to 500 pounds: Class B misdemeanor, up to $2,000 and up to 6 months in jail
- 500 to 1,000 pounds: Class A misdemeanor, up to $4,000 and up to 1 year in jail
- Over 1,000 pounds: state jail felony, up to $10,000 and up to 2 years in a state jail facility
Commercial dumping hits felony territory sooner. Dumping more than 200 pounds for economic gain is a state jail felony, and dumping any amount of waste in a closed drum or barrel is automatically a state jail felony, regardless of weight. Counties work with state environmental agencies on these cases, especially when hazardous materials are involved.