Ustick Road, Black Cat Road to Ten Mile Road

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The Ada County Highway District (ACHD) will be reconstructing Ustick Road between Black Cat Road and Ten Mile Road. The purpose of this project is to improve traffic flow and increase safety for all users.

Ustick, Black Cat to Ten Mile

  • Widen Ustick Road to two lanes in each direction, with center turn lanes or center medians at key locations.
  • Construct curb, gutter, and a 10-foot-wide multi-use pathway with a safety buffer on both sides of the roadway for pedestrian and bicyclists.
  • Add a traffic signal at Naomi Avenue.
  • Install an enhanced pedestrian crossing across Ustick Road at the Nine Mile Pathway.
  • Upgrade stormwater facilities and replace irrigation pipes.

Ustick and Black Cat Intersection

  • Widen the Ustick Road and Black Cat Road intersection to include additional through lanes.
  • Add dedicated right and left turn lanes on all approaches.
  • Install curb, gutter, and multi-use pathways.

The Ada County Highway District (ACHD) will be reconstructing Ustick Road between Black Cat Road and Ten Mile Road. The purpose of this project is to improve traffic flow and increase safety for all users.

Ustick, Black Cat to Ten Mile

  • Widen Ustick Road to two lanes in each direction, with center turn lanes or center medians at key locations.
  • Construct curb, gutter, and a 10-foot-wide multi-use pathway with a safety buffer on both sides of the roadway for pedestrian and bicyclists.
  • Add a traffic signal at Naomi Avenue.
  • Install an enhanced pedestrian crossing across Ustick Road at the Nine Mile Pathway.
  • Upgrade stormwater facilities and replace irrigation pipes.

Ustick and Black Cat Intersection

  • Widen the Ustick Road and Black Cat Road intersection to include additional through lanes.
  • Add dedicated right and left turn lanes on all approaches.
  • Install curb, gutter, and multi-use pathways.
  • April 4, 2025

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    04 Apr 2025
    • Black Cat Road is closed north of Ustick Road.
    • Black Cat Road is open south of Ustick Road.
    • Elmstone Ave, north of Ustick Road, will re-open on Monday morning, April 7th. Once Elmstone is open, Aspenstone Street will be closed at Black Cat Road.
    • Ustick remains open: Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction. Irrigation and seepage bed installation is ongoing. Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eight mile irrigation: Irrigation is complete for the season. Irrigation work, apart from Nine mile, is nearly complete in preparation for the City’s sewer bypass. Rutledge has been sleeved for sewer line install.
    • Contractor is starting site prep and demo on N Black Cat – asphalt has been removed up to Aspenstone.
  • March 28, 2025

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    28 Mar 2025
    • Black Cat Road is closed north of Ustick Road.
    • Black Cat Road is open south of Ustick Road.
    • Ustick remains open: Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction. Irrigation and seepage bed installation is ongoing. Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eight Mile irrigation: Concrete irrigation splitter box placements completed this week. Waiting on lids. Utility relocations are complete. Temporary precast sections have been set. Irrigation work, apart from Nine Mile, is nearly complete in preparation for the City’s sewer bypass. Rutledge has been sleeved for sewer line install.
  • March 21, 2025 - Detour Map and Construction Update

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    21 Mar 2025

    Elmstone is closed between Ustick and Alderstone as part of the Ustick, Black Cat to Ten Mile project. The north leg of Black Cat is also closed between Ustick and Aspenstone Street.

    Local traffic only can access the neighborhood from Aspenstone Street.

    The south leg of Black Cat has been reopened. We appreciate your patience as crews work and remind all residents to slow down through the construction zone.

  • March 20, 2025

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    20 Mar 2025
    • Black Cat Road is closed south of Ustick Road.
    • Ustick remains open: Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eight Mile irrigation: Concrete irrigation splitter box placements completed this week.
    • Utility relocations are complete.
    • Temporary precast sections have been set.
    • Irrigation work, apart from Nine mile (sleeved), is nearly complete in preparation for the City’s sewer bypass.
    • Precast box fabrication complete for this season.
  • March 14, 2025

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    14 Mar 2025
    • Black Cat Road is closed south of Ustick Road.
    • Ustick remains open:
    • Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eight mile irrigation: Concrete irrigation splitter box placements completed this week.
    • Utility relocations are complete.
    • Temporary precast sections have been set.
    • Irrigation work, apart from Ninemile (sleeved), is nearly complete in preparation for the City’s sewer bypass.
    • Precast box fabrication complete for this season.
  • March 6, 2025

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    06 Mar 2025
    • Black Cat Road is closed south of Ustick Road.
    • Ustick remains open: Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eightmile irrigation: Excavation for the west side diversion structure complete. Utility relocations are nearly complete. Temporary precast sections have been set.
    • Irrigation work on Ninemile and Rutledge continues.
    • Headwall at Rutledge complete.
    • Precast box fabrication complete for this season.
  • February 28, 2025

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    28 Feb 2025
    • Black Cat Road is closed south of Ustick Road.
    • Ustick remains open: Traffic has been shifted onto the temporary asphalt on the south side of Ustick – one lane in each direction.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep are ongoing on the north side of Ustick.
    • Eight mile irrigation: Excavation for the west side diversion structure complete.
    • Utility relocations are nearly complete.
    • Temporary precast sections have been set.
    • Irrigation work on Nine mile and Rutledge continues.
    • Headwall at Rutledge complete.
    • Precast box fabrication complete for this season.
  • February 20, 2025

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    20 Feb 2025
    • Black Cat Road is closed south of Ustick Road.
    • Traffic has been shifted onto the temporary asphalt on the south side of Ustick.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep is ongoing.
    • Eight Mile irrigation box on Black Cat has been demolished.
    • Excavation for the west side headwall complete.
    • Irrigation work on Nine Mile and Rutledge has started.
    • Headwall at Rutledge complete.
    • Precast box fabrication complete for this season.
    • Southwest corner of Ustick and Black Cat (Eight Mile) irrigation work ongoing.
  • February 14, 2025

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    14 Feb 2025
    • Black Cat Road is closed south of Ustick Road.
    • Traffic has been shifted onto the temporary asphalt on the south side of Ustick.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep is ongoing.
    • Eight Mile irrigation box on Black Cat has been demolished.
    • Excavation for the west side headwall complete.
    • Headwall is installed.
    • Precast box fabrication ongoing.
    • Southwest corner of Ustick and Black Cat irrigation work started.
  • February 7, 2025

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    07 Feb 2025
    • Black Cat Road is closed south of Ustick Road.
    • Traffic has been shifted onto the temporary asphalt on the south side of Ustick.
    • Irrigation and seepage bed installation is ongoing.
    • Roadway and sidewalk demo and prep is ongoing.
    • Eight Mile irrigation box on Black Cat has been demolished.
    • Excavation for the west side headwall complete.
    • Headwall is installed.
    • Precast box fabrication ongoing.
Page last updated: 04 Apr 2025, 10:24 AM