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Missouri Department of Transportation

Missouri Department of Transportation. STAKEHOLDER INTERACTION AT CLOSED SITES. Weldon Spring Site Weldon Spring, Missouri. Kevin Wideman Sr. Environmental Specialist. INTRODUCTION. Weldon Spring is the site of a former chemical and radiological facility

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Missouri Department of Transportation

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  1. Missouri Department of Transportation STAKEHOLDER INTERACTION AT CLOSED SITES Weldon Spring Site Weldon Spring, Missouri Kevin Wideman Sr. Environmental Specialist

  2. INTRODUCTION • Weldon Spring is the site of a former chemical and radiological facility • This site included a manufacturing facility with disposal ponds on site • It also included a quarry that was used for disposal of waste • MoDOT has two highways, Routes D and Route 94 that traverse the area • MoDOT also has a maintenance lot next door to the disposal cell

  3. Weldon Spring Site

  4. Weldon Spring Chemical Plant

  5. The Site Today

  6. Weldon Spring Site Route D Culverts Disposal Cell MoDOT Maintenance Facility Route 94 Culvert Missouri River Quarry

  7. MoDOT Areas Affected

  8. Route 94 Culvert • Installed by the army under 40 feet of fill • Consists of corrugated metal that is rusting • Culvert is contaminated • Removal costs about $1 million • Fix and leave in place with future replacement when needed 60 inch X 225 feet

  9. Route 94 Immediate Repairs Culvert before repairs Culvert after repairs on 8/25/10

  10. Route 94 Future Needs • After collapsed end was cut away • Water had undercut the end • Culvert still intact but will need replacement or lined in the future

  11. Route 94 Culvert Downstream • Fill is washed away from around the culvert • This section broke away • Isn’t necessary for integrity of the highway • DOE’s discretion on what to do with it

  12. Route D Culverts • Installed by Army • Consists of corrugated metal that was rusting • Believed contamination is under the culverts • Removal and replacement to be done next year • Cooperative coordination between DOE and MoDOT to replace 2 - 60 inch X 82 feet

  13. Route D Culverts • MoDOT’s contractor will uncover the culverts • DOE contractor will remove along with any contaminated soil • MoDOT will supply fill material

  14. Working Together • Missouri is the “Show Me State” • We need to see to accept • Several Missouri state agencies were involved • MoDOT, DOC, DNR, DNR Parks • DNR is the central contact

  15. Central Contact • One central state contact • Everyone was kept informed • Easier to work with DOE and for DOE to work with the agencies • MoDOT concerned with protecting our employees and the public

  16. Open Comunicaton • MoDOT assigned one central contact within the department • Maintenance people were briefed • Design and construction to coordinate future efforts • DOE provided educational opportunities for employees

  17. Future Route D Improvements • Widen Route D next spring • Culvert replacement will be coordinated • Route D will be shut down for two days • MoDOT’s contractor will remove the overburden • DOE will remove the culverts and any contaminated soil • MoDOT will replace the fill and culverts and finish the project

  18. Future Route D Improvements • Disposal of the culverts will be determined • If they are not contaminated they will be recycled • DOE has offered to be present at the pre bid meeting to answer any questions from contractors

  19. Future Route 94 Improvements • Route 94 cannot be shut down • Shoulders are being added to Route 94 • Culvert replacement or repair will be coordinated with DOE • MoDOT will continue to work with DOE

  20. Interpretive Center • DOE’s interpretive center next door has been a great educational tool to educate MoDOT employees

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