What Are the Legal Requirements for Cattle Guards?

Cattle guard requirements can vary significantly depending on where the guard is installed. A cattle guard on a private ranch road may be treated differently from one installed on a county road, state highway, public access route, or on federal land.

There is no single set of cattle guard requirements that applies to every installation. Before purchasing a cattle guard, determine who controls the road or property and what specifications that authority requires.

For customers beginning a project, Barn World's cattle guards are available in several configurations and load ratings for private and public-road applications.

Cattle guard options for private roads and public roadway projects

Are Cattle Guards Legal?

Cattle guards are commonly used on private property and public road systems, but that does not mean a cattle guard can be installed anywhere without approval.

The important question is not simply whether cattle guards are legal. It is whether a cattle guard is permitted at the particular location and what design, load rating, foundation, documentation, and installation requirements apply there.

Those requirements may be established by a property owner, homeowners or road association, county, municipality, state transportation department, federal land-management agency, or another authority responsible for the roadway.

Private Property and Ranch Roads

A cattle guard installed entirely on private property may provide more flexibility than one installed within a public right-of-way. Private driveways, ranch roads, pasture entrances, and internal farm roads may not be subject to the same roadway specifications that apply to public roads.

That does not eliminate the need to plan the installation carefully. Property boundaries, easements, shared roads, utility locations, drainage, livestock containment, expected vehicle traffic, and local requirements can all affect the project.

If the entrance connects directly to a public road, requirements for the public right-of-way or roadway access may also apply even though the property behind the entrance is privately owned.

Public Roads Require Approval from the Road Authority

A cattle guard proposed for a public road should be discussed with the agency responsible for that road before the guard is ordered.

Depending on the location, that may be a county road department, municipality, state department of transportation, federal agency, or another public-road authority.

The agency may specify requirements such as:

  • Cattle guard dimensions
  • Required load rating
  • Engineering or certification documents
  • Foundation design
  • Roadway width and approach requirements
  • Drainage
  • Fence and wing connections
  • Traffic-control requirements during installation
  • Maintenance responsibilities
  • Signs or other roadway markings

Because these specifications vary, the road authority's project requirements should be obtained before selecting the cattle guard.

Do You Need a Permit to Install a Cattle Guard?

A permit should not be assumed to be either universally required or universally unnecessary. The answer depends on the location and the authority responsible for the road or right-of-way.

Work involving a public roadway, highway access, public right-of-way, or government-managed land may require approval or a permit. Requirements for an installation entirely on private property can be different.

Before beginning a project involving a public road, contact the responsible agency and ask whether an access, construction, right-of-way, or other approval is required.

Cattle Guard Load-Rating Requirements

Load rating becomes especially important when a cattle guard will carry heavy vehicles or be installed on a public roadway.

Cattle Guard Load Ratings

H-15: 12 tons per axle

H-20 / HS-20: 16 tons per axle

U-54: 25 tons per axle

U-80: 30 tons per axle

The appropriate rating should be based on the vehicles expected to use the crossing and any specifications issued by the roadway authority. Do not assume that one particular load rating is required for every public-road installation.

For a more detailed explanation, see our guide to cattle guard load ratings.

Engineering and Documentation Requirements

Public agencies may require drawings, engineering information, load-rating documentation, or other specifications before approving a cattle guard.

The required documentation depends on the project. A private ranch entrance may have very different documentation requirements from a cattle guard installed within a state highway or federally managed road system.

If an agency provides written specifications, keep those requirements available when requesting a quote. They can help determine whether a particular cattle guard meets the project's needs.

Foundation and Installation Requirements

The foundation is part of the cattle guard's overall installation and should be appropriate for the guard, expected vehicle loads, soil conditions, drainage, and roadway.

Precast concrete foundations for a cattle guard installation

Public-road authorities may specify foundation details as part of an approved design. Private installations may provide greater flexibility, but the guard still needs adequate structural support.

Barn World offers cattle guard foundations for compatible installations. Our cattle guard foundation and site preparation guide also explains the major factors to consider before installation.

What About County and Local Requirements?

County and municipal requirements should be checked locally because rules can differ from one jurisdiction to another. A county may have its own roadway standards, access requirements, approved drawings, or permitting process.

This is especially important when a cattle guard will be installed within a county-maintained road, public easement, or right-of-way.

Ask the responsible road department for its current cattle guard or livestock-crossing specifications rather than relying on requirements from another county or state.

Cattle Guards on State Highways

Projects involving a state highway require coordination with the applicable state transportation authority. Highway access and work within a state right-of-way may be subject to permitting and engineering requirements that do not apply to an internal ranch road.

Obtain the state's requirements before ordering the cattle guard. This can prevent purchasing a guard whose dimensions, load rating, foundation, or documentation do not match the approved project.

Cattle Guards on Federal or Public Land

Federal land-management agencies can also have their own road plans, construction specifications, drawings, and approval processes. Cattle guards are used on federal road systems, but the required design should come from the agency responsible for the particular project.

Do not assume that requirements for a county road or private ranch entrance automatically satisfy a project on federally managed land.

Maintenance and Inspection Responsibilities

Responsibility for maintaining a cattle guard depends on ownership, the roadway agreement, and the agency or parties involved.

Maintenance can include removing accumulated soil and debris, maintaining drainage, inspecting structural components, and keeping the surrounding roadway and fence connections in serviceable condition.

For public installations, ask the roadway authority who is responsible for future maintenance and whether periodic inspections or documentation are required.

Livestock and Safety Considerations

Cattle guards are primarily intended to discourage cattle and similar livestock from crossing a fenced opening. They should not be treated as a universal barrier for every animal.

In particular, cattle guards should not be relied upon as a safe barrier for horses because a horse attempting to cross can suffer serious leg injuries.

See our guide to cattle guards and horses when planning an entrance used around equine animals.

What to Ask Before Ordering a Cattle Guard

For a private installation, begin by identifying the roadway width, expected vehicles, livestock, site conditions, and installation method.

For a public-road or regulated installation, contact the responsible authority and obtain answers to these questions:

  • Is a cattle guard permitted at this location?
  • Is a permit or written approval required?
  • What dimensions are required?
  • What load rating is required?
  • Are engineered drawings or certification documents required?
  • Is a specific foundation design required?
  • Are there drainage or roadway-approach specifications?
  • Are wings, fencing, signs, or other components specified?
  • Who is responsible for installation and future maintenance?
  • Is an inspection or final approval required?

Getting these answers before ordering can help avoid having to modify the cattle guard or installation after the project requirements have been established.

Match the Cattle Guard to the Project Requirements

The most important step in meeting cattle guard requirements is identifying who has authority over the installation and obtaining that authority's current specifications.

Private-property projects may offer considerable flexibility, while public-road and government-managed projects can have detailed design and documentation requirements.

Once those requirements are known, Barn World can help match the project specifications with an appropriate cattle guard design, size, load rating, foundation, and related components. Browse the cattle guard selection at Barn World or provide the project specifications when requesting a quote.

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