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R3 PS I-70B 1st Avenue & Grand Design Engineering

R3 PS I-70B 1st Avenue & Grand Design Engineering. 1st Date of Publication: 12/21/2017. REVISED SOI Submission Deadline: 1/18/2018. Number of SOIs/WPs to submit: six (6) or submit electronically through the CDOT RFx Vendor portal RFx #6000193.

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