Lena Avenue Bridge

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This project is substantially complete.

As part of the Ada County Highway District's (ACHD) Bridge Maintenance Program, ACHD will replace the culvert on Lena Avenue, north of McMillan Road, as early as the beginning of November 2022 or possibly as late as mid-January 2023.* Construction is expected to be complete spring of 2023.

This bridge improvement project will include removing and replacing the existing bridge over the Zinger Lateral canal.

*Due to high demand for contractors, labor and supplies, the date range is designed to give the contractor flexibility so they can begin the project when resources are available.


Commuters are reminded to obey all road closure signs and follow the signs along the detour route. Commuters should never attempt to drive, bike, or walk on closed portions of the road, regardless of whether there appears to be active construction. It is unlawful to move or manipulate construction signs and doing so can put commuters and construction workers at great risk.

As part of the Ada County Highway District's (ACHD) Bridge Maintenance Program, ACHD will replace the culvert on Lena Avenue, north of McMillan Road, as early as the beginning of November 2022 or possibly as late as mid-January 2023.* Construction is expected to be complete spring of 2023.

This bridge improvement project will include removing and replacing the existing bridge over the Zinger Lateral canal.

*Due to high demand for contractors, labor and supplies, the date range is designed to give the contractor flexibility so they can begin the project when resources are available.


Commuters are reminded to obey all road closure signs and follow the signs along the detour route. Commuters should never attempt to drive, bike, or walk on closed portions of the road, regardless of whether there appears to be active construction. It is unlawful to move or manipulate construction signs and doing so can put commuters and construction workers at great risk.

This project is substantially complete.

  • April 7, 2023

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    • Minor work remains - including bike rail.

  • March 31, 2023

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    • Minor work remains, including bike rail.

  • March 24, 2023

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    • Minor work remains including the bike rail.

  • March 17, 2023

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    • Bike rail ongoing.

  • March 10, 2023

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    • Lena Bridge ongoing.
    • Remaining concrete being placed on March 9th.
    • CIPP liner anticipated the week of March 6th.
    • Bike rail ongoing.

  • March 3, 2023

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    • Concrete pad and backfill remaining.
    • CIPP liner anticipated week of March 6th. Bike rail ongoing.

  • February 24, 2023

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    • Concrete pad and backfill remaining.
    • CIPP liner ongoing.
    • Bike rail ongoing.

  • February 17, 2023

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    • Concrete pad and backfill remaining.
    • CIPP liner ongoing.
    • Bike rail ongoing.

  • January 20, 2023

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    • Lena Bridge - ongoing
    • Concrete pad and backfill remain.

  • January 13, 2023

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    • Backfilled for spillway.
    • Forming and prepping concrete for soil.