Marigold Street and Coffey Street Pipe Repair Project

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Starting as early as July 6, the Ada County Highway District (ACHD) will begin work on the southwest corner of the Marigold Street and Coffey Street Intersection. Construction is expected to be complete by Late July. *

The purpose of this project is to replace a section of failed irrigation pipe, update irrigation infrastructure, replace a pedestrian ramp on the southwest corner of the intersection, and repair the surrounding asphalt.

Construction Impacts

Temporary roadway closures on Marigold and Coffey are anticipated. Marigold Street and Coffey Street will not be closed at the same time during the project.

Work will be completed in two phases:

  • Phase 1: Marigold Street will be closed between Garrett Street and Coffey Street. Local access on Marigold Street will be allowed at Garrett Street, with a hard closure at Coffey Street.

  • Phase 2: Once Marigold Street is reopened, Coffey Street will be closed. Local access will be maintained at Chinden Boulevard with a hard closure on Marigold Street.

  • General construction noise, dust, equipment backup alarms and ground vibration.
  • Crews will work from 7 a.m. to 6 p.m. Monday through Friday.

*Construction schedules may change.

Please note: This project is unrelated to the Marigold Concept Study and is an urgent repair project.

Starting as early as July 6, the Ada County Highway District (ACHD) will begin work on the southwest corner of the Marigold Street and Coffey Street Intersection. Construction is expected to be complete by Late July. *

The purpose of this project is to replace a section of failed irrigation pipe, update irrigation infrastructure, replace a pedestrian ramp on the southwest corner of the intersection, and repair the surrounding asphalt.

Construction Impacts

Temporary roadway closures on Marigold and Coffey are anticipated. Marigold Street and Coffey Street will not be closed at the same time during the project.

Work will be completed in two phases:

  • Phase 1: Marigold Street will be closed between Garrett Street and Coffey Street. Local access on Marigold Street will be allowed at Garrett Street, with a hard closure at Coffey Street.

  • Phase 2: Once Marigold Street is reopened, Coffey Street will be closed. Local access will be maintained at Chinden Boulevard with a hard closure on Marigold Street.

  • General construction noise, dust, equipment backup alarms and ground vibration.
  • Crews will work from 7 a.m. to 6 p.m. Monday through Friday.

*Construction schedules may change.

Please note: This project is unrelated to the Marigold Concept Study and is an urgent repair project.

  • July 9, 2026

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    • Work is anticipated to start July 6th.
    • Contractor is working on pipe replacement.
    • Marigold will be closed for up to a week for pipe work.
    • Once Marigold is re-opened, the Contractor will be allowed to close Coffey St.
    • Work is anticipated to start July 6th.
    • Contractor is working on pipe replacement.
    • Marigold will be closed for up to a week for pipe work.
    • Once Marigold is re-opened, the Contractor will be allowed to close Coffey St.
  • Detour Map

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Page last updated: 09 Jul 2026, 03:41 PM