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I-35W North MnPASS Design-Build

Ramsey and Anoka Counties, MN

Project Overview


This three-year reconstruction project along a 12-mile stretch of I-35W between Roseville and Lino Lakes included the construction of E-ZPass Express Lanes, repaving of I-35W and ramps, repair and replacement of bridges, and the installation of noise walls. It repaired aging infrastrucure and aimed to improve mobility, reduce congestion, and increase highway safety along the corridor.

Our Work

Isthmus led the design for the signing of northbound I-35W from County Road (CR) C in Roseville to CR 96 in Arden Hills. The project included Type C, D, and OH freeway signing. The design of the overhead signs included 16 structures: six spans, seven cantilevers, and three continuous span structures, some of them holding DMS signs. This was the first Isthmus project using MnDOT's newly developed and published Design D Overhead Sign Structure Standard Plans.

Isthmus also provided Quality Management services. Tasks included audits of over 60 design packages requiring an audit of both Submittal for Comment packages and Release for Construction in each design package and over 50 NDCs (notice of design change) during construction.  Audit scope included plans, reports, maps and calculations.

Featured Team Members

Amber Nord, PE
Role:
 Isthmus Signing Design Task Lead

Amy DeBruin
Role: Quality Manager

Allie Futhey
Role:
Signing Designer

Elizabeth Lewen
Role:
Signing Designer

Daren Ellefson
Role:
Signing Designer

Featured Services

  • Signing
  • Quality Management

 

Project Details

Owner: MnDOT Metro District

Location: Ramsey and Anoka Counties, MN

Project Number: SP 6284-180

Completion: 2021