Bogus Basin Emergency Repair Project
The Ada County Highway District (ACHD) Board of Commissioners passed a declaration of Emergency following a significant washout along Bogus Basin Road caused by the recent storms.
ACHD maintenance staff identified damage near Mile Marker 10 on Bogus Basin Road, including significant washout and failing pavement. The failure has also compromised drainage, preventing stormwater from reaching an existing inlet and increasing the risk of additional slope failure.
The Commission's decision to declare an emergency, allows ACHD to streamline the procurement processes and begin geotechnical work and design on an expedited timeline.
The Ada County Highway District (ACHD) Board of Commissioners passed a declaration of Emergency following a significant washout along Bogus Basin Road caused by the recent storms.
ACHD maintenance staff identified damage near Mile Marker 10 on Bogus Basin Road, including significant washout and failing pavement. The failure has also compromised drainage, preventing stormwater from reaching an existing inlet and increasing the risk of additional slope failure.
The Commission's decision to declare an emergency, allows ACHD to streamline the procurement processes and begin geotechnical work and design on an expedited timeline.
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July 21 Traffic Advisory: Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday
Share July 21 Traffic Advisory: Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday on Facebook Share July 21 Traffic Advisory: Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday on X (formerly Twitter) Share July 21 Traffic Advisory: Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday on Linkedin Email July 21 Traffic Advisory: Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday linkTRAFFIC ADVISORY
Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday
A temporary signal is scheduled to be installed on Bogus Basin Road around mile marker 10 by the end of the day Wednesday. Once the signal is in place, traffic will be reduced to one lane for approximately 700 feet through this section of the roadway.
Recent storms have led to damage to the roadway in this area, including significant washout and failing pavement.
ACHD Commissioners recently made an emergency declaration, which allows work to move forward on an expedited timeline. Geotechnical design work for the repairs is currently underway, and construction on the repairs is scheduled to begin in late August.
The temporary signal is expected to remain in place until repairs are complete. ACHD is working to complete repairs as quickly as possible before the winter season.
Anyone traveling on Bogus Basin Road is encouraged to slow down, follow all traffic control devices, and allow extra travel time.

TRAFFIC ADVISORY
Section of Bogus Basin Road to Be Reduced to One Lane Beginning Wednesday
A temporary signal is scheduled to be installed on Bogus Basin Road around mile marker 10 by the end of the day Wednesday. Once the signal is in place, traffic will be reduced to one lane for approximately 700 feet through this section of the roadway.
Recent storms have led to damage to the roadway in this area, including significant washout and failing pavement.
ACHD Commissioners recently made an emergency declaration, which allows work to move forward on an expedited timeline. Geotechnical design work for the repairs is currently underway, and construction on the repairs is scheduled to begin in late August.
The temporary signal is expected to remain in place until repairs are complete. ACHD is working to complete repairs as quickly as possible before the winter season.
Anyone traveling on Bogus Basin Road is encouraged to slow down, follow all traffic control devices, and allow extra travel time.

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Press Release- ACHD Commissioners Declare Emergency to Expedite Bogus Basin Road Repairs Following Washout
Share Press Release- ACHD Commissioners Declare Emergency to Expedite Bogus Basin Road Repairs Following Washout on Facebook Share Press Release- ACHD Commissioners Declare Emergency to Expedite Bogus Basin Road Repairs Following Washout on X (formerly Twitter) Share Press Release- ACHD Commissioners Declare Emergency to Expedite Bogus Basin Road Repairs Following Washout on Linkedin Email Press Release- ACHD Commissioners Declare Emergency to Expedite Bogus Basin Road Repairs Following Washout linkBOISE — The Ada County Highway District Board of Commissioners declared an emergency following a significant washout along Bogus Basin Road caused by recent storms, allowing the District to expedite repairs to the damaged roadway.
ACHD maintenance crews have identified damage near Mile Marker 10 on Bogus Basin Road, including significant washout and failing pavement. The intense rainfall from recent storms caused severe erosion between the edge of the pavement and the travel lane, resulting in the loss of portions of the roadway shoulder and pavement. The failure has also compromised drainage, preventing stormwater from reaching an existing inlet and increasing the risk of additional slope failure.
Bogus Basin Road is the only paved, publicly maintained access to the Bogus Basin Mountain Recreation Area and serves as the primary route for emergency responders, residents, employees, and visitors. The potential for continued erosion presents an immediate and substantial risk, leading to the Commission's decision to declare an emergency. The declaration allows ACHD to streamline procurement processes and begin geotechnical work and design on an expedited timeline. Commissioners approved the declaration during their regular meeting last week. Construction on the roadway repairs is currently targeted to begin in late August.
"The safety of the traveling public is our highest priority," said Matt Degen, Safety Engineering Manager. "This declaration allows us to move quickly to address the damage, stabilize the roadway, and maintain safe access to Bogus Basin before winter conditions return."
Throughout construction, ACHD will make every effort to maintain access on Bogus Basin Road. While the roadway will remain open whenever safely possible, traffic is expected to be reduced to a single lane, controlled by temporary traffic signals, during the project.
In the meantime, ACHD crews will continue to monitor the site daily. Depending on changing conditions, traffic may be reduced to one lane before construction begins if engineers determine it is necessary to protect the traveling public.
Motorists are encouraged to slow down, follow all traffic control devices, and allow extra travel time when driving on Bogus Basin Road.
To subscribe for updates to the project and follow along with progress, visit https://www.achdidaho.org/bogusbasin.
BOISE — The Ada County Highway District Board of Commissioners declared an emergency following a significant washout along Bogus Basin Road caused by recent storms, allowing the District to expedite repairs to the damaged roadway.
ACHD maintenance crews have identified damage near Mile Marker 10 on Bogus Basin Road, including significant washout and failing pavement. The intense rainfall from recent storms caused severe erosion between the edge of the pavement and the travel lane, resulting in the loss of portions of the roadway shoulder and pavement. The failure has also compromised drainage, preventing stormwater from reaching an existing inlet and increasing the risk of additional slope failure.
Bogus Basin Road is the only paved, publicly maintained access to the Bogus Basin Mountain Recreation Area and serves as the primary route for emergency responders, residents, employees, and visitors. The potential for continued erosion presents an immediate and substantial risk, leading to the Commission's decision to declare an emergency. The declaration allows ACHD to streamline procurement processes and begin geotechnical work and design on an expedited timeline. Commissioners approved the declaration during their regular meeting last week. Construction on the roadway repairs is currently targeted to begin in late August.
"The safety of the traveling public is our highest priority," said Matt Degen, Safety Engineering Manager. "This declaration allows us to move quickly to address the damage, stabilize the roadway, and maintain safe access to Bogus Basin before winter conditions return."
Throughout construction, ACHD will make every effort to maintain access on Bogus Basin Road. While the roadway will remain open whenever safely possible, traffic is expected to be reduced to a single lane, controlled by temporary traffic signals, during the project.
In the meantime, ACHD crews will continue to monitor the site daily. Depending on changing conditions, traffic may be reduced to one lane before construction begins if engineers determine it is necessary to protect the traveling public.
Motorists are encouraged to slow down, follow all traffic control devices, and allow extra travel time when driving on Bogus Basin Road.
To subscribe for updates to the project and follow along with progress, visit https://www.achdidaho.org/bogusbasin.
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Manager, Safety Engineering
Phone 208-387-6100 Email connect@achdidaho.org -
Safety Engineering Coordinator
Phone 208-387-6100 Email connect@achdidaho.org


