DECLO, Idaho (News release) Interstate 84 will be closed to traffic, and all vehicles will be detoured for three nights during the next two weeks for a series of concrete pours on the eastbound Snake River bridge at milepost 216 near the Declo interchange.
Detours of I-84 will begin at about 10 p.m. Thursday (June 15) and last about six hours. Two additional nighttime detours are tentatively scheduled for June 22 and 29. Drivers should check 511.idaho.gov for updated dates and times of subsequent closures and detour information.
The contractor is using a concrete-pumping truck from the westbound I-84 bridge to transfer the concrete to the driving surface of the eastbound bridge. As prescribed by the design engineers, the concrete placement begins in the middle of the bridge and proceeds toward each end. Additional daytime pours will be performed at the east and west ends of the new structure.
During nighttime closures, traffic will be detoured between the Heyburn Interchange (Exit 211) and the Declo Interchange (Exit 216). Westbound traffic will be detoured off I-84 at Exit 216, south to Declo on Idaho 77, west to Burley on Idaho 81, and return to I-84 through Heyburn. Eastbound traffic will leave I-84 at Exit 211, detour north on Idaho 24 to Rupert, then go east and south on Idaho 25 to I-84.
Ralph L. Wadsworth Construction, of Draper, Utah is the contractor for the $17.88 million project to replace the two I-84 bridges crossing the Snake River.
Bridge construction started in 2015 with the westbound bridge completed and opened to traffic in 2016. All work is expected to be complete by the end of August.