Section 4: Signing for County Roads

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TxDOT furnishes and erects advance county road name or number signs on the state highway system. The guidelines contained in this section are intended to provide statewide uniformity.

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Eligible County Roads

The following considerations govern the decision to install county road signs on state highways:

  • the development of the 911 system and the importance of directing emergency vehicles
  • the adequacy of any existing signing at night
  • the need for directing non-local drivers.

Only county roads that have been officially assigned a name or route number by the commissioners court of a county qualify for signing.

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Signing Standards

All signing for county roads on the state highway system use I-2e series signs (white on green), whether for named or numbered roads. The abbreviation for “county road” used on signs with road numbers is “CO RD.”

The recommended minimum letter size is 6 inches, except where circumstances restrict the overall size of the sign. Advance guide signs should be placed at least 200 feet in advance of the intersection. On major highways or for major county roads, larger letter size and increased advance distance from the county road should be considered. Standard Highway Sign Designs for Texas for recommended dimensions for county road signs. See the Traffic Control Standard Plan Sheets for sheeting, font, and substrate requirements for county road signs.

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When Warning Signs are Used

At intersections with county roads where the W2 series intersection warning are used, the D1 series county road name or number sign may be used instead of the warning signs. Although the TMUTCD allows county road name signs to be mounted below the intersection warning signs, in order to be consistent, separate supports should be used if both warning and guide signs are erected for the same intersecting road.

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Signs Provided by County

Counties may provide county road name or number signs for placement similar to street names on top of supports of TxDOT maintained STOP and YIELD signs. Signs provided by the county for this purpose must:

  • meet the design requirements of the TMUTCD
  • be of the quality materials approved by the district engineer (including sign blanks, reflectorization, and mounting hardware)
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Existing Signs

All existing county road signing not in conformance with these guidelines may remain in place until the end of its service life. As existing signs are replaced, new signs will conform to established guidelines.

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