Nampa Highway District #1

Nampa Highway District #1 NHD is one of four Highway Districts that serve Canyon County. Nampa Highway District No. 1 (NHD) is one of four highway districts that serve Canyon County.

Each is a political subdivision of the State of Idaho and is independent of state, city or county governments. The authority of the highway districts is set forth in Idaho Code Title 40, Chapter 13. NHD maintains approximately 734 lane miles of roadways, and associated signs, bridges, and culverts. NHD is governed by three elected Commissioners and has 39 employees. NHD Jurisdictional boundaries a

re shown in the "Canyon County" Highway Districts Map. NHD is composed of the southern portion of Canyon County, bounded by Marsing Rd. (west of Lake Lowell), and Midland Blvd. and Ustick Rd. (north and east of Lake Lowell). NHD does not have jurisdiction over City of Nampa or City of Melba roads.

09/02/2026

🚧 DEER FLAT RD. UPDATE 🚧

The first section of Deer Flat Rd., between Lynwood Rd. and Rim Rd., has been paved and is now OPEN to thru traffic! 🎉

The section of Deer Flat Rd. between Rim Rd. and Farner Rd. remains CLOSED while roadway reconstruction continues.

Please continue to use caution and plan alternate routes around the closed section. Thank you for your patience!

🚧 UPCOMING ROAD CLOSURE – AMITY AVE.Amity Ave. will be closed to through traffic between Robinson Blvd. and McDermott Rd...
09/01/2026

🚧 UPCOMING ROAD CLOSURE – AMITY AVE.

Amity Ave. will be closed to through traffic between Robinson Blvd. and McDermott Rd. from September 8th through September 10th.

⚠️ This closure will have an open trench. Local traffic can access Amity Ave. from Robinson Blvd. Please use an alternate route and plan accordingly.

A detour map is attached for reference.

Thank you for your patience while crews complete this repair.

📢 Sharing for Public Information:We know this intersection has been a frequent source of questions and calls from our co...
08/31/2026

📢 Sharing for Public Information:
We know this intersection has been a frequent source of questions and calls from our community, so we wanted to share the latest information released by the Idaho Transportation Department (ITD).

This is a joint project between ITD and the City of Nampa. Nampa Highway District No. 1 is not involved in the project, but we’re sharing ITD’s update to help keep our community informed.

Please see ITD’s original post below for more information and updates.

We understand the community’s frustration with the unfinished work at Locust Lane and SH-45.

ITD’s project has been temporarily halted for contractual reasons that we are addressing as we attempt to complete the work as quickly as possible. ITD must hire a new contractor but must do so following the mandatory bonding process, which ensures that Idaho taxpayers do not pay twice for the same work.

ITD is preparing a temporary solution that will enhance mobility of the roadway until a new contractor is hired and the project can be completed. We know the delay is disruptive, and we are sorry for the disruption. We will provide additional information as the path forward and schedule are confirmed.

08/24/2026

Below is the Agenda link for the Public Commissioner Meeting being held on Thursday August 27, 2026.

08/18/2026

🚧 ROAD CLOSURE NOTICE – DEER FLAT RD 🚧
Starting Monday 8/24, Deer Flat Rd. between Rim Rd. and Farner Rd. will be closed to thru traffic for roadway improvements.
The road will be pulverized, re-shaped, and compacted, and will be resurfaced with new asphalt pavement. Once active construction is complete, the road will remain closed to thru traffic until paving, & painting can be completed.
The first section of Deer Flat Rd. between Lynwood Rd. and Rim Rd. remains closed. Crews will begin paving this two-mile section on August 24.
Please plan alternate routes and use caution in the area.

Edit: 8/13/26 @10:00am Roadway back open to thru trafficCrews will be closing the roadway just east of the intersection ...
08/12/2026

Edit: 8/13/26 @10:00am Roadway back open to thru traffic

Crews will be closing the roadway just east of the intersection of N 63rd St. & E Willow Ave. The intersection itself will remain open, with three legs of the intersection still accessible. There will be no thru traffic past the closure point to the east.
Crews anticipate the road will be reopened by approximately 5:00 p.m. the same day.
Please plan ahead and use alternative routes in the area.

08/11/2026

Below is the Agenda link for the Public Commissioner Meeting being held on Thursday August 13, 2026.

08/03/2026

Edit: 9/2/26 This section of roadway is back open.
🚧 ROAD CLOSURE NOTICE – DEER FLAT RD 🚧

Starting today, Deer Flat Rd. between Lynwood Rd. and Rim Rd. will be closed to thru traffic for roadway improvements.

The road will be pulverized, re-shaped, and compacted, and will be resurfaced with new asphalt pavement later this season. Once active construction is complete, the road will remain closed to thru traffic until paving can be completed.

Please plan alternate routes and use caution in the area.

07/28/2026

Below is the Agenda link for the Public Commissioner Meeting being held on Thursday July 30, 2026.

🚧 2026 Chip Seal Update – Fog Seal Begins Monday, July 20 🚧Over 40 miles of roadway have been chip sealed, and we're now...
07/16/2026

🚧 2026 Chip Seal Update – Fog Seal Begins Monday, July 20 🚧

Over 40 miles of roadway have been chip sealed, and we're now moving into the final phase of the project—fog sealing.

Beginning Monday, July 20, crews will start applying the fog seal to all roads that were chip sealed.
Monday's Schedule: 7/20
📍 Southside Blvd. & Deer Flat Rd. Roundabout – Closed first thing in the morning for several hours while crews apply the fog seal and install pavement markings.
Once that roundabout is complete and reopened to traffic, crews will move to the:
📍 Robinson Blvd. & Locust Ln. Roundabout – This roundabout will also be closed for several hours while fog seal and pavement markings are completed.
Tuesday's Schedule: 7/21
📍 Robinson Blvd. & Airport Rd. Roundabout – Closed first thing in the morning for several hours while crews complete the fog seal and pavement markings.
After the roundabouts are finished, crews will continue applying fog seal to the remaining roads included in this year's chip seal project, working their way through the schedule.
Please plan ahead, follow posted detours, and watch for crews working in the area. Thank you for your patience as we complete the final stage of this year's chip seal project!

Address

4507 12th Avenue Rd
Nampa, ID
83686

Opening Hours

Monday 6:30am - 5pm
Tuesday 6:30am - 5pm
Wednesday 6:30am - 5pm
Thursday 6:30am - 5pm

Telephone

+12084676576

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