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I-90 Exit 14 Closure with Detour and Bridge Demolition Resumes
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For Immediate Release:  Thursday, March 2, 2017

Contact: Adam McMahon, 605-892-2872

 

SPEARFISH, S.D. – The South Dakota Department of Transportation says demolition of the old Interstate 90 Exit 14 bridge near Spearfish will resume on Monday, March 6. Both directions of I-90 will be closed from 7 p.m. to 6 a.m. with traffic directed onto the off and on ramps.

 

The contractor removed the bridge deck two weeks ago and took this last week to construct supports for the removal of the bridge girders and remove debris from the bridge deck demolition. The contractor estimates the removal of the bridge girders will take six nights.

 

This means closing the interstate that runs below the bridge at night while the work is done. Interstate traffic will be routed up the off ramp and back down the on ramp. Each night the contractor will clean off the interstate, secure the structure and re-open the interstate before 6 a.m.

 

Motorists are asked to slow down through the work zone and be prepared for suddenly slowing, merging and stopped traffic, as well as construction workers and equipment adjacent to the roadway.

 

Heavy Constructors, Inc., of Rapid City is the prime contractor on this $28 million project. The overall completion date for the project is June 1, 2018.

 

Road construction information for this project can be found at the following locations as it becomes available:

 

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