Middle/Summer/Miller Intersection

Archive Updated July 15, 2026

Project Overview

This project includes the realignment of the intersection to provide safer, slower travel and better sight distance. The plan is to replace the existing outdated traffic signal equipment with a new signal that meets current design standards. New mast arms, signal heads, pedestrian signals, accessible curb ramps, signal detection and signal controller will be included. Modifications to the pavement markings and lanes are also proposed.

Estimated Cost: Design: $55,000. Construction:  $398,000

Contractor: Electric Light

Project Team

City Staff: Eric Eby City Engineer – Parking, Transportation, and Planning 603-766-1415 ebeby@portsmouthnh.gov

Area of Impact

Project Updates

1/13/2026 Jan 13, 0226

Due to issues encountered in the field during construction, minor modifications were made to some of the crosswalks, tip down ramps and pavement markings to ensure compliance with ADA standards. A final “As-Built” plan will be posted on this page once the project is completed. This “As-Built” plan will include the changes made in the field during construction.

Project Documents

Here you will find final design plans, design concepts and three design alternatives.

Plans & Drawings

Project FAQ

What is the Middle / Summer / Miller Intersection project?

The project includes improvements to the Middle Street, Summer Street, and Miller Avenue intersection.

What work is included in the project?

The project includes intersection improvements and updates to traffic signal equipment.

What traffic signal improvements are included?

The project includes installation of new traffic signal equipment, including signal heads, pedestrian signals, and related infrastructure.

Are pedestrian improvements included in the project?

Yes. The project includes pedestrian signals and curb ramp improvements.

Where can residents find more information about the project?

Residents can find project updates, documents, and additional information on this project page.