There will be overnight closures of C-470 as well as an off-ramp on Interstate 25 in Thornton next week that could cause grief for motorists driving after hours.
Both directions of C-470 will be closed between South Santa Fe Drive and Lucent Boulevard for seven hours starting at 10 p.m. on Wednesday and Thursday nights so that crews can install bridge girders. South Erickson Boulevard between Plaza Drive and County Line Road will also be closed for eight hours both nights starting at 9 p.m.
The work is being done as part of the through the south suburbs. Detour routes can be found on .
On northbound I-25, the off-ramp at 136th Avenue will be shut down from 8 p.m. Wednesday to 5:30 a.m. Thursday so that crews can install a barrier. Motorists are advised that a detour using the 120th Avenue off-ramp to northbound Washington Street will add 10 minutes to travel times.
From 7 p.m. Thursday to 5:30 a.m. Friday, crews will temporarily shorten the acceleration lane from southbound Northwest Parkway/E-470 to I-25. Motorists will need to yield as they enter I-25 and will need to exercise caution.
