The Indiana Department of Transportation released the final environmental impact statement for I-69 Section 6, which will run from Martinsville to Indianapolis.
The crash killed three occupants of the minivan, all residents of Greenwood.
Officials say a Miller Transportation bus struck the minivan from behind about 1:45 p.m., triggering a collision involving three other vehicles.
A letter from the Indiana Finance Authority said last month subcontractors were owed a total of $9 million.
Some lawmakers are skeptical about a proposal that would fund road priorities through tolls.
Sections one through five of I-69 have funding, but state officials have not decided how to pay for the section from Martinsville to Indianapolis.
Getting the interstate to reach Indianapolis will require a different approach.
Officials say thieves have done $200,000 in damage since March by dressing up in safety apparel to look like legitimate contractors.
Section 5 of I-69, the area from Bloomington to Martinsville, could cost millions less than originally estimated.
Indiana Department of Transportation officials say they anticipated sinkholes along I-69 and are working to fill them.