Projects | Nampa, ID | Nampa Highway District No. 1 (NHD)

Overview

Intersection Projects

Roadway Projects

Bridge Projects

Studies

Bid solicitations

Stormwater

Overview

Five Year Work Plan

Nampa Highway District publishes a fiscally constrained Five-Year Work Plan, which it updates annually. The principal types of projects listed in the plan are seal coats, overlays, rebuilds, and new construction. It does not show smaller projects, such as ditch cleaning, culvert replacement, sign replacement, crack sealing, or emergent repairs.

Roadway

Roadway projects are designed to improve safety and to improve traffic flow. Roadway projects may include seal coat, overlay, rebuild and new construction.

Studies

Traffic Studies are designed to improve safety and traffic flow in addition to future planning for transportation projects throughout the Nampa Highway District.

Stormwater

Stormwater is inclement weather water that flows over the ground and does not soak into the soil. For more information and to report stormwater issues, see stormwater tab.

Intersection project

Intersection projects are designed to improve traffic flow and public safety. They range from a full intersection redesign and rebuild to the addition of traffic signals.

Bridge

Nampa Highway District is responsible for bridges and culverts within the district. Regular inspections are performed to monitor for wear and to ensure we meet or exceed all State and Federal Standards.

Bid Solicitations

Nampa Highway District obtains public works construction, goods, and services via a sealed bid process. Contractors, suppliers, or vendors are invited to participate in open, advertised solicitation.

Intersection Projects

Intersection project

Roundabout Information

Roundabouts have become common in Canyon County during the past decade. Even though the public is now generally accustomed to them, some questions and concerns continue to persist; most of these are addressed in the videos and brochures discussed below.

Nampa Highway District is planning and designing several new roundabouts. Click on a Project location below for details about a specific roundabout project.

Educational Videos: Several educational videos are available regarding roundabouts. Two of them can be seen by clicking on the following links.

Modern Roundabout Myths (Minnesota Local Road Research Board)
Modern Roundabouts - A Safer Choice (Federal Highway Administration)

Further Reading. Please see the below articles for more information.

2016 Idaho Drivers Manual - Roundabouts

COMPASS Brochure - Roundabout Guide for Large Trucks & Oversize Vehicles

FHWA Brochure - Roundabouts, A Safer Choice

Northside and Cherry Roundabout

Location
This project is located at the intersection of Northside Blvd. and Cherry Ln. on the north side of Nampa

Description
The intersection is currently an all-way-stop configuration. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as an all-way-stop. A roundabout in this location is expected to improve safety and mobility for both the Northside Blvd. and Cherry Ln. corridors. The project will improve traffic flow along Cherry Ln. in conjunction with the existing Star and Cherry Ln roundabout.

Process/Schedule
The process and schedule for the project are currently as follows:

Design Consultant Selection – September 2021 (6 Mile Engineering)
Concept Report –Fall 2022
Preliminary Design – Fall 2022
Purchase of Right-of-Way – 2023
Final Design – Spring 2023
Construction – Winter 2024 to Spring 2025 (six month duration)

News Releases and Newsletters

Northside and Cherry-Concept Design

Robinson & Locust Roundabout

Location
This project is located at the intersection of Robinson Blvd. and Locust Ln. on the south-east side of Nampa.

Description
The intersection is currently an all-way-stop configuration. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as an all-way-stop. A roundabout in this location is expected to improve safety and mobility for both the Robinson Blvd. and Locust Ln. corridors. The project will fit the context of a roundabout corridor for Robinson Blvd., which is also Robinson Rd. to the north of Victory Rd. This corridor currently has roundabouts at the intersections of Robinson & Victory, as well as Robinson & Amity.

The process and schedule for the project are currently as follows:
- Design Consultant Selection – October 2019 (Parametrix Engineering)
- Public Meeting – September 28th
- Online Meeting Details:
https://www.zoom.us/join/
Meeting ID: 760 549 5543
Passcode: 8520
- Concept Report – October 2020
- Preliminary Design – Winter 2020/2021
- Purchase of Right-of-Way –2021
- Final Design – Fall 2021
- Construction - Winter 2024 to Spring 2025 (six month duration)

News Releases and Newsletters
- 09-14-2020 Newsletter

Graphics and Displays
- Robinson-Locust Alternative 1 Centered
- Robinson-Locust Alternative 1
- Robinson-Locust Alternative 2

Robinson Rd. & Airport Rd. Roundabout

Location
This project is located at the intersection of Robinson Road and Airport Road on the east side of Nampa.

Description
The intersection is currently a two-way stop-controlled configuration. East and west traffic on Airport Road is stopped controlled while the north and south traffic is free flow on Robinson. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as a two-way stop-controlled. A roundabout in this location is expected to improve safety and mobility for both the Robinson Rd. and Airport Rd. corridors. The project will fit the context of a roundabout corridor for Robinson Rd/Star Rd. This corridor currently has roundabouts constructed at Robinson & Amity, Robinson & Victory, construction started at Star & Cherry and one planned at the intersection of Robinson & Locust.

The process and schedule for the project are currently as follows:
- Design Consultant Selection – September 2020 (Parametrix Engineering)
- Public Meeting - March 16, 2021 at NHD Office
- Concept Report – Spring 2021
- Preliminary Design – Fall 2021
- Purchase of Right-of-Way –2022
- Final Design – Fall 2022
- Public Meeting – Spring 2023
- Construction – Spring/Summer 2023 (six month duration)
- Bridge Work December 2022
- Full Closure February 2023
- Project completed May 2023

News Releases and Newsletters
- 01-24-2023 News Release
- 02-24-2021 Newsletter

Graphics and Displays
- Preferred Design Concept

Southside Blvd. & Deer Flat Rd. Roundabout

Location
This project is located at the intersection of Southside Blvd. and Deer Flat Rd. on the south side of Nampa.

Description
The intersection is currently a two-way stop-controlled configuration. East and west traffic on Deer Flat Road is stopped controlled while the north and south traffic is free flow on Southside. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as a two-way stop-controlled. A roundabout in this location is expected to improve safety and mobility for both the Southside Blvd. and Kuna Rd. corridors. The project will fit the context of a roundabout corridor for Southside Blvd. This corridor currently has roundabouts planned at the intersections of Southside & Lewis, as well as Southside & Kuna.

The process and schedule for the project are currently as follows:
- Design Consultant Selection – September 2020 (Kittelson & Associates)
- Public Meeting – March 4, 2021
- Online Meeting Details:
https://www.zoom.us/join/
Meeting ID: 946 6128 0876
Passcode: 262364
- Concept Report – April 2021
- Preliminary Design – Fall 2021
- Purchase of Right-of-Way – 2022
- Final Design – Fall 2022
- Public Meeting – Spring 2024
- Construction- Spring 2025 to Summer 2025 (six month duration)

News Releases and Newsletters

Graphics and Displays
- Southside and Deer Flat Concepts - Concept B Selected

Southside Blvd. & Kuna Rd. Roundabout

Location
This project is located at the intersection of Southside Blvd. and Kuna Rd. on the south side of Nampa.

Description
The intersection is currently a two-way stop-controlled configuration. East and west traffic on Kuna road is stopped controlled while the north and south traffic is free flow on Southside. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as a two-way stop-controlled. A roundabout in this location is expected to improve safety and mobility for both the Southside Blvd. and Kuna Rd. corridors. The project will fit the context of a roundabout corridor for Southside Blvd. This corridor currently has roundabouts planned at the intersections of Southside & Lewis, as well as Southside & Deer Flat.

The process and schedule for the project are currently as follows:
- Design Consultant Selection – October 2019 (Six Mile Engineering)
- Public Meeting – February 2, 2021
- Online Meeting Details:
https://www.zoom.us/join/
Meeting ID: 978 9076 9215
Passcode: 405157
- Concept Report – March 2021
- Preliminary Design – Summer 2021
- Purchase of Right-of-Way – 2022
- Final Design – Spring 2022
- Public Meeting – Spring 2025
- Construction – Spring/Summer 2025 (six month duration)

News Releases and Newsletters
- 1-14-2021 Newsletter

Graphics and Displays
- Single-Lane Roundabout Alternative 1-07-2021
- Compact Single-Lane Roundabout Alternative 1-07-2021

Robinson Rd. & Kuna Rd. Roundabout

Location
This project is located at the intersection of Robinson Rd. and Kuna Rd. on the south-east side of Nampa.

Description
The intersection is currently a flashing all-way-stop configuration. The project will reconfigure the intersection into a roundabout.

Need for Project
This intersection is currently configured as a flashing all-way-stop. A roundabout in this location is expected to improve safety and mobility for both the Robinson Rd. and Kuna Rd. corridors. The project will fit the context of a roundabout corridor for Star/Robinson Blvd. The corridor currently has four roundabouts at Star Rd. & Cherry Ln., Robinson Rd. and Airport Rd., Robinson Rd. and Victory Rd., Robinson Rd. and Amity Ave.

The process and schedule for the project are currently as follows:
- Design Consultant Selection – November 2021 (Kittelson & Associates)
- Public Meeting at Nampa Highway District No. 1 – May 24, 2022
- Concept Report – June 2022
- Preliminary Design – Summer 2022
- Purchase of Right-of-Way –2023 to 2024
- Final Design – Anticipated Winter 2024
- Construction – Anticipated Winter 2025 to Spring 2026 (six month duration)

News Releases and Newsletters
- 05-09-2022 Newsletter

Graphics and Displays
- Preferred Design Concept

Can-Ada Rd. & Ustick Rd. Roundabout

Roadway Projects

Description of Project Types-

Seal Coat

Seal coat is a film of oil sprayed on the road surface, with a layer of crushed gravel spread on top, and a thin “fog coat” of oil sprayed over the gravel. In some rare situations, it consists of just the “fog coat,” with no gravel. Any cracks in the pavement will receive a separate crack sealing treatment before the seal coat is applied.

While seal coats can be a nuisance, they significantly extend pavement life at relatively low cost by sealing out moisture and the sun’s ultraviolet rays. They also protect pavement from wear and provide necessary traction for vehicle handling.

Nampa Highway District seal coats on a seven-year cycle for main roads, and a ten-year cycle for subdivisions. Each year, the seal coats are programmed as funding allows, with roads of higher functional classification (such as Express Ways and Arterials) receiving higher priority.

Overlay

An overlay is a layer of asphalt pavement, typically about 2” thick, which is placed over an existing road surface. Overlays are typically used when the existing road surface is excessively cracked, rutted, or otherwise distressed, but the underlying gravel base is still in good condition. Overlays are programmed based on several factors, such as pavement condition, functional classification, traffic volumes, and available funding.

Rebuild

Rebuild is the process of grinding the existing asphalt pavement and mixing it with the underlying gravel base, sometimes adding additional gravel, then paving a new asphalt pavement over the top. It is also sometimes called a full-depth rehabilitation. It is done when the existing road surface is excessively cracked, rutted, or otherwise distressed, and the underlying gravel base is also failing. Rebuilds are programmed based on several factors, such as road condition, functional classification, traffic volumes, and available funding.

New Construction

As the name implies, new construction is the building of new roadway or changing the alignment of an existing roadway. New constructions are programmed based on an assessment of the benefit to the overall transportation network as well as available funding.