Public Works Department


Welcome to the Benton County
Public Works Department  


Our Mission: The Benton County Public Works Department strives to provide the highest quality roadway and infrastructure to the public through prudent use of resources, technology, innovation, and teamwork.

Our Vision: Working for the community to establish and maintain an exceptional road and public works infrastructure system through dedicated staff, effective construction, rigorous maintenance, and exemplary service.

How Do I…?

…get permits

…report a road problem

…bid on county projects or proposals

...view the Benton County road map

…find standards and specifications

…find road closures

…find out about snow removal
...donate or dispose of household hazardous waste
* For Temporary, Short and Long Term Road Closure information, please click on the Road Closures link on the sidebar.

* For information regarding what changes may be happening in your area, please scroll down to the News Section of this page.

* For information regarding work being done by the County along the roads, please click on the Projects link on the sidebar. 


Please be aware that 3rd Avenue in Kennewick, east of Chemical Drive, will be closed from July 8th through July 10th. This closure will reroute traffic to surrounding County roads. Please pay attention to increased traffic in this area during this closure.

 20190708 3rd avenue closure p1

20190708 3rd avenue closure p2

Tip of the Month: 
Summer Driving Tips

Summer is finally here and in full effect.  As temperatures increase, there are some things you should be aware while out driving in this beautiful weather.  Everything from tire blowouts, summer road construction and more people in the area for recreational reasons.  And you always want to be aware of the weather and be prepared for any potential storm systems that may come through. 

The warmer weather is here to stay for a bit, and that means there is more construction happening on the roads and off.  Construction can be anything from houses being built to new roads being built.  These types of construction are being done by Contractors, City, County, State and Federal agencies.  With that in mind, keep an eye out for construction signs.  Make sure to be prepared, in case of delays and be patient if you happen to get caught in construction traffic.  Remember, it’s the law to slow down in work zones.  This is for the safety of the work crew and for yourselves.  Also, if you don’t slow down, fines are double the normal amount.

Spring and Summer weather means more Motorcycles and Bicycles are on the road.  Keep an eye out for these.  Especially with summer vacation, that means there will be more children out riding their bikes.  Make sure to always be on the watch for people riding a bike, motorized or not.

Tire blowouts are a concern as well in the summer.  Especially in our area, where we can experience extreme heat.  The hot weather causes tires to expand, and if they are well worn, they could easily blowout.  This can happen on any type of vehicle from a passenger vehicle to a semi-truck or trailer.  Be sure to keep an eye on your tires and replace them as needed.

And finally, as more people are out going boating, camping and on road trips, there is bound to be more traffic which may cause congestion.  Be aware, as this can mean delays in getting where you need to go.   Also, vacationers in the area may not know where they are going or may be driving slower, so they can enjoy the view. 

With all that said, enjoy your summer and be safe!

State Travel Information Websites

Before heading on a trip, check with the following agencies:
Washington State Department of Transportation (
Oregon Department of Transportation (
Idaho Department of Transportation (

*For your daily commute, check with your local news and city website(s) for concerns and construction projects. 



As of February 14, 2019, a restriction on through traffic will be placed on the following County Roads in the Finley Area.  It shall be unlawful for any truck to operate on these roadways except for the purpose of making local deliveries.  Signs are posted indicating the restriction areas. 

- Bowles Road from SR 397 to Haney Road
- Cochran Road from SR 397 to Haney Road
- Haney Road from SR 397 to Game Farm Road
- Finley Road from SR 397 to SR 397
- Nine Canyon Road from SR 397 to Game Farm Road.


On January 29, 2019, new reduced speed limits were approved for several roads in the Prosser and Finley areas.  Originally, these roads were unmarked country roads and their speed limit was 50 MPH.  Please see below for a list of the roads and their new speed limit.  The new reduced speed limits will be effective once the speed limit signs have been postedTo see a map of these roads, click the link below. 


Albro Road – 25 MPH
Bone Road – 25 MPH
County Line Road – 30 MPH 
Griffin Road – 35 MPH 
Johnson Road – 35 MPH 
King Tull Road – 35 MPH 
Sievers Road – 35 MPH 
Atwood Road – 40 MPH 
Missimer Road – 40 MPH 
Wilgus Road – 40 MPH 

Finley (map): 
Sloan Road – 35 MPH 
Sloan Court – 35 MPH 

In an effort to keep the citizens of Benton County informed, upcoming construction projects are posted on the County's Facebook page, you can also find information about closures and detours on the main Benton County website.
Contact Us

Physical Address

(1st floor of the Courthouse):

620 Market Street

Prosser, WA  99350


Mailing Address:

P. O. Box 1001

Prosser, WA  99350

Phone Numbers:

(509) 786-5611


(509) 736-3084

Email Address:


Benton County    620 Market Street    Prosser, Washington 99350
Phone: (509) 786-5710 or (509) 783-1310
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