Get Full Government Meeting Transcripts, Videos, & Alerts Forever!
Consultants present preferred 'skewed roundabout' design, funding plan for Towner/Tanner interchange
Summary
Snyder & Associates presented a preferred skewed roundabout interchange for the Towner Drive (Highway 141) corridor, citing safety and traffic projections; consultants outlined a cost estimate near $28 million and a mix of federal, state, local and developer funding sources.
Snyder & Associates presented an update to the Johnston City Council on the Towner Drive interchange project along Iowa 141, recommending a skewed ‘‘dog-bone’’ or stretched roundabout interchange as the preferred alternative and outlining a funding strategy and schedule.
Wade Greiman, a transportation engineer with Snyder & Associates, said the project—s planning and environmental linkages (PEL) study is about 80% complete and will be submitted for DOT and Federal Highway Administration review; the team has already begun field work for the follow-up NEPA study. He said construction could begin as early as 2028 if sufficient funding is secured.
Greiman cited traffic and safety findings: the corridor carried roughly…
Already have an account? Log in
Subscribe to keep reading
Unlock the rest of this article — and every article on Citizen Portal.
- Unlimited articles
- AI-powered breakdowns of topics, speakers, decisions, and budgets
- Instant alerts when your location has a new meeting
- Follow topics and more locations
- 1,000 AI Insights / month, plus AI Chat
