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Ground Adulticide Treatment | Ray & Williston | WCVCD | 9/23/2025

9/23/2025: The Williams County Vector Control District (WCVCD) will conduct ground adulticide treatments in the City of Ray and Williston Spray Blocks 3 & 4, tonight, Tuesday, September 23, weather and conditions permitting. WCVCD will be using DeltaGard (active ingredient: Deltamethrin), which is approved for use in residential areas. Residents are reminded to maintain a...

9/22/25 - CR 11 south of Hwy 1804 6-ton Restriction Clarification

Effective today, 9/22/25, 8:10am (CST) - CR 11 (126th Ave NW) south of Hwy 1804, going south 3 miles to CR 11A (48th St NW) will be restricted to the 6-ton axle weight, 80,000 LBS GVW maximum - restriction due to construction until further notice.

Water Resource District Board Special Meeting

November 10, 2025

Effective 9/19/25 - 121st Ave NW Road Closure

Effective Friday, 9/19/25, at 8:00am (CST) Wheelock Township will be closing 121st Ave NW from Hwy 2 north to 66th St NW for culvert repairs.  The work should be completed by 12:00pm (CST).

Ground Adulticide Treatment | Grenora, Trenton & Ray | WCVCD | 9/16/2025

9/16/2025: The Williams County Vector Control District (WCVCD) will conduct ground adulticide treatments in Grenora, Ray, and Trenton tonight, Tuesday, September 16, weather and conditions permitting. WCVCD will be using DeltaGard (active ingredient: Deltamethrin), which is approved for use in residential areas. Residents are reminded to maintain a distance of at least 300 feet from...

Rain Restriction Update 9/16/2025 - 12:50PM (CST)

**Effective Immediately – 12:50PM (CST) – 9/16/2025 – Rain Restrictions in all zones for Williams County and Township gravel and chip seal roads will be lifted and will go back to “By Legal Weight” unless otherwise posted.   **Effective Immediately – 9/16/25 – 8:00AM (CST) – Zones 2 & 3 – All Williams County and...

Update - Rain Restriction 9/15/2025 - 6:15AM (CST)

Effective immediately - 9/15/25 - 6:15am (CST) - zones 2, 3, 5 & 6 - all Williams County and Township gravel and chip seal roads will be restricted to the 7-ton axle weight limit - 105,500 LBS GVW until further notice.  Any permits that were approved prior in those zones are now void.  Roads will...

9/10/25 - CR 17A Restriction Update

Effective immediately, 9/10/25 - Williams County is lifting the "no oversize travel" restriction on CR 17A (52nd St NW) from Hwy 1804 going east 2 miles to 110th Ave NW; and CR 17A (110th Ave NW) north 1 mile to 53rd St NW.  This road will now be restricted "by llegal weight".

Multiple Adulticide Treatments | Williams County | WCVCD | 9/9/25 - 9/14/25

9/9/25 The Williams County Vector Control District (WCVCD) will be conducting both ground and aerial adulticide treatments between September 9 and September 14, 2025. Weather permitting, treatments will occur after sunset. The WCVCD is planning ground adulticide applications across Ray and Trenton using DeltaGard, which has the active ingredient Deltamethrin. Separately, planned aerial sprays will...

78th St NW - Re-opened

Effective immediately, 9/8/25 - Winner Township has reopened 78th St NW from Hwy 85 going west 1 mile to 137th Ave NW.

Ground Adulticide Treatment | Trenton | WCVCD | 8/28/2025

8/28/2025: The Williams County Vector Control District (WCVCD) will conduct a ground adulticide treatment in Trenton tonight, Thursday, August 28, 2025, weather and conditions permitting. WCVCD will be using DeltaGard (active ingredient: Deltamethrin), which is approved for use in residential areas. Residents are reminded to maintain a distance of at least 300 feet from Vector...

CR 11 Reopened - 8/28/25

Effective immediately, Thursday, 8/28/25 - CR 11 (129th Ave NW) from Hwy 2 going north 4 miles to CR 10 (68th St NW) that was closed for construction has been reopened for travel. --------------------------------------------------- Effective Sunday, 8/3/25, Williams County will be closing county road 11 (129th Ave NW) from Hwy 2 going north 4 miles...

Adulticide Treatments | Williston, Ray and Grenora | WCVCD | 8/26 & 8/27/2025

8/26/2025: The Williams County Vector Control District (WCVCD) is planning to conduct ground adulticide treatments in Grenora, Ray, and Williston Block 13 using DeltaGard on Tuesday, August 26, 2025. Residents are reminded to maintain a distance of at least 300 feet from Vector Control trucks during fogging operations. Due to vehicle issues, the ground treatment...

Buildings Closed - New Year's Day

January 1, 2026

Weather Radar

About The Williams County Real-time Weather Radar is located at the Williston Basin International Airport (XWA) and provides radar coverage for northwestern North Dakota. Construction of the radar was completed in October 2019 and is fully operational as of March 2020; information became available to the public in April 2020. The project was funded by revenue...

Ground Adulticide Treatments | Williston, Trenton, Ray and Grenora | WCVCD | 8/19/25- 8/24/25

8/19/25 The Williams County Vector Control District (WCVCD) is planning to conduct ground spray adulticide treatments across several cities this week between Tuesday, August 19 and Sunday, August 24, 2025. WCVCD will be conducting these applications across Grenora, Ray, Williston and Trenton using Zenivex and DeltaGard products. Weather permitting, all treatments will occur after sunset....

Ground Adulticide Treatments | Ray and Grenora | WCVCD | 8/15/25

8/15/25 The Williams County Vector Control District (WCVCD) plans to conduct ground ULV mosquito control treatments in both Ray and Grenora after sunset on Friday evening (8/15/2025), weather permitting. For these missions, WCVCD will use Deltagard which has an active ingredient Deltamethrin. This product is approved for residential mosquito control by the Environmental Protection Agency...

Multiple Adulticide Treatments | Williams County | WCVCD | 8/12/25 - 8/13/25

8/12/25 The Williams County Vector Control District (WCVCD) will be conducting both ground and aerial adulticide treatments between August 12 and August 13, 2025. The WCVCD is planning ground adulticide applications across Grenora, Ray, Williston's Block 8 and in South Williams County (west of Lake Jessie). In Ray and Grenora, WCVCD will be using Zenivex,...

USAFR Aerial Adulticide Spray | Williston | WCVCD | 8/5/25 -8/8/25

In collaboration with the Williams County Vector Control District (WCVCD), the United States Air Force Reserve (USAFR) will be conducting an aerial spray mission over Williston between August 5, 2025 and August 8, 2025, if weather and conditions allow.The large military aircraft will be flying at low elevations during the mission. Treatments will take place...

Rain Restriction Lifted - 6PM (CST) 8/9/2025

Effective Saturday 6:00PM (CST) - 8/9/2025 – Rain Restrictions in ALL ZONES for the County, Township gravel and chip seal roads will be lifted, and will go back to “By Legal Weight” unless otherwise posted. ***** Effective 12:30pm (CST) Saturday, 8/9/2025 - ZONES 4, 5, 6 - in Williams County and all township gravel and chip...

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