The Benton County Road Department requires permits for road approaches (driveways), oversized loads, and right-of-way encroachments.
Road approaches (driveways)
Per Revised Code of Washington (RCW) 36.75.130, road approaches fall under the regulation of Benton County. If any of the following apply to your project, then a road approach permit is required:
Construction of any dwelling or accessory dwelling;
Construction of an accessory building valued at $25,000 or more;
Construction of any commercial, industrial, or agricultural structure;
Placement or replacement of a manufactured home;
Enlarging any dwelling or accessory structure with the value of the addition being thirty-three percent (33%) or more of the current structures value;
Enlarging any dwelling or accessory structure’s gross floor area by more than fifty percent (50%), regardless of value; OR
Ingress or egress to a County road for commercial, industrial, or agricultural purposes other than temporary approaches.
Here is how to start an application for a road approach permit:
1. Download the guidelines and permit below.
2. Follow the guidelines and complete the permit. Submit to the Roads Department upon completion.
Submissions can be made by:
- Email (PUBLICWORKS@co.benton.wa.us)
- Mail (Benton County Road Department, c/o Permitting, PO Box 1001, Prosser, WA 99350)
- Fax (509-786-5627)
Please be aware that there is a 90-day limit on road approach permits and that fees are nonrefundable. If you have further questions, please contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities).
Road approach permit, guidelines, and standards
Road approach policy
Per RCW 46.44.090, Benton County requires those moving oversized loads on county roads to complete an oversized load permit. A copy of the permit application is available for download below. This completed permit must be submitted a minimum of two (2) working days prior to the time during which you would like to move your oversized load. There is no fee associated with this permit. Please be aware that, by signing the permit, you are assuming liability for damages resulting from the transport of said oversized load. If you have further questions, please contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities).
Oversized load permit
Per Benton County Resolution 72-219 and Resolution 79-220, the Benton County Road Department requires permitting of all right-of-way encroachments. This most commonly applies to utility services that run within Benton County’s right-of-way. A copy of the permit application is available below for download. This completed permit must be submitted a minimum of ten (10) working days prior to the time during which you would like to have the utility work performed.If you have further questions, please contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities).
The following documents are not permits, but cover specialized requests that will be processed by the Benton County Road Department. They include right-of-way vacation petitions, franchise applications, and tourist oriented signing requests.
Owner Will Maintain Agreement
Residents of Benton County can apply for the option to maintain the Right of Way adjacent to their property in lieu of having County personnel apply Herbicide. Please use the agreement form below to apply for this option.
Owner Will Maintain Agreement
Right-of-way vacation petitions
Residents of Benton County can petition for the vacation of right-of-way adjacent to their property per RCW 36.87.020. If you would like to explore the option of vacating property, we strongly suggest that you contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities). The vacation process can be lengthy, requires the writing of a report by the County Engineer (the cost for which is the responsibility of the applicants), and does not guarantee the vacation of the right-of-way, as proposed in the petition. More information can also be found through the link below.
The following application is for a franchise agreement with Benton County. If you are looking to enter into a franchise agreement with Benton County, please contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities).
Tourist oriented signing requests
The Benton County Road Department can install tourist oriented signs along Benton County roads. If you are interested in this, please download and complete the application below. Please note that the feature must conform to the definition of a tourist oriented business activity, as described in WAC 468.70.050(f) (see application). The fee will consist of the actual cost of installation or replcaement and must be submitted at the time of application. Signs are installed as part of our regular sign maintenance and replacement. As such, it may take up to two to four (2 to 4) weeks from time of payment for signs to be installed. If you have further questions, please contact our office at 509-786-5611 (Prosser) or 509-736-3084 (Tri-Cities).