The alley between Bluff and Locust from 4th Street to 5th Street will be closed for gas main valve replacement from 8 AM to 5 PM, Monday, December 4 through December 7. Map available at www.cityofdubuque.org/detours. If you have questions regarding this closure/detour, please contact the City of Dubuque Engineering Department at 563-589-4270. Please note: closure dates/times are estimates and are subject to change without notification based on weather and contractor schedules.