Black Cat Road 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 Black Cat Road, north of King Road, as early as the beginning of 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 Benton Lateral.

*Due to high demand for contractors, labor and supplies, construction schedules may change.

Construction Impacts

  • Black Cat Road, just north of King Road, will be closed during construction
  • Lane restrictions
  • General construction noise, dust, equipment backup alarms and ground vibration
  • Crews will work from 7 a.m. to 7 p.m. unless otherwise approved
  • The contractor will work with property owners to maintain access

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 Black Cat Road, north of King Road, as early as the beginning of 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 Benton Lateral.

*Due to high demand for contractors, labor and supplies, construction schedules may change.

Construction Impacts

  • Black Cat Road, just north of King Road, will be closed during construction
  • Lane restrictions
  • General construction noise, dust, equipment backup alarms and ground vibration
  • Crews will work from 7 a.m. to 7 p.m. unless otherwise approved
  • The contractor will work with property owners to maintain access

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 28, 2023

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    • Box culvert is complete.
    • Anticipated opening roadway by April 28th.

  • April 21, 2023

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    • Box culvert was set March 16th.
    • Concrete wingwalls are complete.
    • Paving anticipated on April 20th.
    • Anticipated opening by April 28th.

  • April 14, 2023

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    • Box culvert was set March 16th.
    • Concrete wingwalls are complete.
    • Grade work ongoing.
    • Road prep and paving anticipated by April 21st.

  • April 7, 2023

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    • Box culvert was set March 16th.
    • Concrete wingwalls are complete.
    • Backfill ongoing.
    • Road prep and paving anticipated April 11th.

  • March 31, 2023

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    • Box culvert was set March 16th.
    • Concrete wingwalls will be complete August 29th.
    • Backfill scheduled for the week of April 1st.

  • March 24, 2023

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    • Irrigation boxes installed.
    • Box culvert was set March 16th.
    • Concrete wingwalls complete March 24th.
    • Backfill scheduled for the week of March 27th.

  • March 17, 2023

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    • Irrigation boxes installed.
    • Bridge removed and excavated.
    • Prepping for headwalls. Placing concrete starting March 9th.
    • Road removed.
    • Boxes set starting March 16th.

  • March 10, 2023

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    • Irrigation boxes installed.
    • Bridge removed and excavated.
    • Prepping for headwalls. Placing concrete starting March 9th.
    • Road removed.
    • Boxes planned to be set March 16th.

  • March 3, 2023

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    • Irrigation boxes installed.
    • Bridge removed and excavated.
    • Prepping for headwalls - waiting on concrete subcontractor.
    • Road removed.

  • February 24, 2023

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    • Irrigation boxes installed.
    • Bridge removed and excavated.
    • Prepping for headwalls - placement anticipated by the 24th.
    • Road removed.