2023 State Street Improvements: State and 16th/ State, 4th to 2nd

This project is substantially complete.

The Ada County Highway District (ACHD) will be constructing improvements to the State Street and 16th Street intersection and State Street from east of 4th Street to 2nd Street starting as early as late late March.* Work is expected to be complete by Summer 2024.

Project Description

Reconstruct both the State Street & 16th Street intersection and State St., east of 4th Street to 2nd Street
Complete traffic signal work at State Street & 16th Street
Add bioretention curb extensions and updated pedestrian ramps to both segments of State Street
As part of this project, ACHD will also be adding dual enhanced pedestrian crossings with bike push buttons across State Street at 3rd Street

Traffic and Construction Impacts

When the street isn’t closed, traffic flow will be prioritized during heavy commute times in the mornings and evenings. Crews will work 9 a.m.- 4 p.m. during the day and 8 p.m.-5 a.m. at night.
Night and weekend work is to be expected.
Crews may work 24 hours a day when blocks are fully closed, though night work will be evaluated for each location and must be pre-approved by ACHD.
One travel lane in each direction will remain open unless the street segment is completely closed.
Temporary pedestrian and bicyclist detours.
Temporary on-street parking impacts.
General construction noise, including equipment backup alarms, dust and ground vibration.
The contractor will coordinate with property and business owners to maintain access or provide alternative access.

*The construction schedule could change due to contractor staffing issues and supply-chain shortages.

Project Description

Reconstruct both the State Street & 16th Street intersection and State St., east of 4th Street to 2nd Street
Complete traffic signal work at State Street & 16th Street
Add bioretention curb extensions and updated pedestrian ramps to both segments of State Street
As part of this project, ACHD will also be adding dual enhanced pedestrian crossings with bike push buttons across State Street at 3rd Street

Traffic and Construction Impacts

When the street isn’t closed, traffic flow will be prioritized during heavy commute times in the mornings and evenings. Crews will work 9 a.m.- 4 p.m. during the day and 8 p.m.-5 a.m. at night.
Night and weekend work is to be expected.
Crews may work 24 hours a day when blocks are fully closed, though night work will be evaluated for each location and must be pre-approved by ACHD.
One travel lane in each direction will remain open unless the street segment is completely closed.
Temporary pedestrian and bicyclist detours.
Temporary on-street parking impacts.
General construction noise, including equipment backup alarms, dust and ground vibration.
The contractor will coordinate with property and business owners to maintain access or provide alternative access.

*The construction schedule could change due to contractor staffing issues and supply-chain shortages.

Construction Updates

This project is substantially complete.

May 10, 2024

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State Street, 2nd Street to east of 4th Street - Complete.

State Street/16th Street intersection - Electrical contractor is complete with underground. Waiting for fiber swap. Pole bases have been placed.
State Street, 2nd Street to east of 4th Street - Complete.

State Street/16th Street intersection - Electrical contractor is complete with underground. Waiting for fiber swap. Pole bases have been placed.
This project is substantially complete.
May 3, 2024

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State Street/16th Street intersection - Electrical contractor is nearly complete with underground.

Fiber work ongoing.

Pole bases have been placed.
State Street/16th Street intersection - Electrical contractor is nearly complete with underground.

Fiber work ongoing.

Pole bases have been placed.
This project is substantially complete.
April 25, 2024

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State Street, 2nd Street to east of 4th Street - Complete.

State Street/16th Street intersection - Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has complete on both the north and south side of State Street.

Electrical contractor is nearly complete with underground.
State Street, 2nd Street to east of 4th Street - Complete.

State Street/16th Street intersection - Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has complete on both the north and south side of State Street.

Electrical contractor is nearly complete with underground.
This project is substantially complete.
April 19, 2024

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State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street.

Electrical contractor is nearly complete with underground.
State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street.

Electrical contractor is nearly complete with underground.
This project is substantially complete.
April 12, 2024

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State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Bore complete across State Street for electrical. Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street.
State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Bore complete across State Street for electrical. Road closures and lane restrictions have started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street.
This project is substantially complete.
April 5, 2024

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State Street, 2nd Street to east of 4th Street
Waiting on bioretention beds to be completed

State Street/16th Street intersection

Bore complete across State Street for electrical.

Road closures and lane restrictions has started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street
State Street, 2nd Street to east of 4th Street
Waiting on bioretention beds to be completed

State Street/16th Street intersection

Bore complete across State Street for electrical.

Road closures and lane restrictions has started.

16th Street is closed.

State Street is reduced to one lane in each direction.

Demo has started on both the north and south side of State Street
This project is substantially complete.
March 29, 2024

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State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St.

Road closures and lane restrictions are scheduled for the first week in April.
State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St.

Road closures and lane restrictions are scheduled for the first week in April.
This project is substantially complete.
March 30, 2024 - Detour Map Information

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Please see the detour map for the construction project for State Street & 16th Street.

State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St. This will be night work. Road closures and lane restrictions are scheduled for the first week in April.
Please see the detour map for the construction project for State Street & 16th Street.

State Street, 2nd Street to east of 4th Street - Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St. This will be night work. Road closures and lane restrictions are scheduled for the first week in April.
This project is substantially complete.
March 15, 2024

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State Street, 2nd Street to east of 4th Street - Concrete complete. Landscape repair complete. Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St. This will be night work.
State Street, 2nd Street to east of 4th Street - Concrete complete. Landscape repair complete. Waiting on bioretention beds to be completed.

State Street/16th Street intersection - Planning to bore for electrical March 28th across State St. This will be night work.
This project is substantially complete.
March 8, 2024

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State Street, 2nd Street to east of 4th Street - Concrete complete.

Landscape repair complete.

State Street/16th Street intersection - Planning to boring for electrical next week.
State Street, 2nd Street to east of 4th Street - Concrete complete.

Landscape repair complete.

State Street/16th Street intersection - Planning to boring for electrical next week.
This project is substantially complete.