Treasure Valley drivers, your patience during the nearly two-year construction projects to rebuild three Interstate 84 interchanges is about to pay off.
But it’s time to get ready for a yearlong closure of the Broadway Avenue bridge and six months of construction of a new roundabout in Northwest Boise.
Here’s the latest on Ada County’s road projects:
THE THREE INTERCHANGES
Interstate 84 Broadway Avenue interchange: The 18-month construction project to rebuild the interchange will be completed this fall.
I-84 Gowen Road interchange: This 18-month construction project to rebuild the interchange will be completed this fall, too.
Meridian Road interchange: The 18-month construction project to rebuild and widen the interchange will be completed by the end of the year. Meridian Road will be restricted to one lane in each direction from 10 a.m. to 5 a.m. weeknights and to 7 a.m. weekends through next Monday, Oct. 19, as crews pave Meridian Road. Flaggers will direct traffic. Additionally, the eastbound off-ramp will be closed Thursday night, Oct. 15; the westbound off-ramp will be closed Sunday night, Oct. 18 and the eastbound on-ramp will be closed Monday night, Oct. 19.
BROADWAY AND THE 36TH STREET ROUNDABOUT
Broadway Avenue Boise River bridge: The Idaho Transportation Department is preparing for a yearlong closure of the bridge starting in late December. Preparation work to replace the bridge is underway. The far right southbound lane between Myrtle Street and the river – which is used as an acceleration lane for drivers merging from Myrtle onto southbound Broadway Avenue – has been closed. Nighttime lane restrictions will take place through the end of this week with Broadway restricted to one lane in each direction between University Drive and Myrtle from 8 p.m. to 5 a.m. Intermittent lane restrictions will continue until the bridge is closed.
36th Street/Hill Road/Catalpa Drive roundabout: Preparation work gets underway this week on Boise’s latest roundabout, which will replace five-way traffic signal with a “dog bone” roundabout. Lane restrictions are in place on 36th and Hill through early November for utility work. Construction will start within three months and take about six months to complete.
5 SMALLER BOISE PROJECTS THIS MONTH
Downtown Boise: Starting this week, 13th Street from Main to Front streets and 14th Street from Front to State streets were converted from one-way to two-way streets.
Fairview Avenue from Curtis Road to Raymond Street: This stretch will be reduced to two lanes from 7 p.m. to 7 a.m. nightly from Thursday, Oct. 15, through late November or early December for water line work.
Interstate 184 (Connector) at Curtis Road: The westbound on- and off-ramps will be closed overnight on Thursday, Oct. 15, for paving.
Warm Springs Avenue between ParkCenter Boulevard and Eckert Road: This stretch is closed through Oct. 28 for water line and roadway work to complete the Warm Springs Avenue bypass, which realigns the road from the existing Warm Springs/Parkcenter Boulevard intersection to the south and east toward Eckert Road.
Lake Hazel Road extension: Construction of new roadway from Solar Avenue to Cole Road should be completed by mid-November.