Route Y Roadway Improvements2018-06-11T21:11:03+00:00

Project Description

Route Y Roadway Improvements

Roadway Design - TWM, Inc. - Roadway Engineering Services for Route Y Improvements
  • LOCATION: Jefferson County, MO


  • CONSTRUCTION COST: $3,645,000

  • QUICK FACT: TWM incorporated multiple safety improvements to the design of this project.

Roadway engineering services including pavement management is one of TWM’s specialties. Throughout this corridor in Jefferson County, MO Route Y was an aging roadway and a source of repetitive accidents. TWM’s design provided a uniform lane width for the roadway and a 2’ safety shoulder.  Rumble strips were added along the centerline for the entire 16.3 miles, along with edgeline rumble strips throughout the shoulders and guardrail installation. TWM also completed hydraulic calculations and drainage analysis, replaced all crossroad and two box culverts, provided conceptual cost estimates, and conducted survey/ROW.  Coordination with MoDOT’s local project team was essential to the success of this project.

Visit Transportation.

Exceptional Service. Nothing Less.


TWM continues the important business of supporting our nation’s essential infrastructure in these uncertain times. We are committed to our mission of providing Exceptional Service, Nothing Less to you, our clients and partners. As a professional services firm, the health of our employee-owners and their families is paramount. We are following government directives and public health guidance, implementing work-from-home and other social distancing and hand hygiene practices. We have employed additional technological resources to support our modified operating structure, and we expect to be able to do so with minimal disruption. If you need to visit our offices in person or have trouble reaching your TWM contact, please contact us at 618.624.4488 so we can make arrangements or put you in touch with the appropriate person. Thank you for placing your trust in TWM. Wishing you safety and good health.