Rocheport bridge work is expected to cause delays on the Tuesday and Wednesday morning and afternoon commutes.
Missouri Department of Transportation will close one westbound lane of Interstate 70 between 9 a.m. and 5 p.m. both Tuesday and Wednesday.
MoDOT said the survey work is the first step of the replacement project and it urges drivers to use caution and expect delays.
The survey work is weather permitting.
MoDOT will get about $81 million to replace the I-70 bridge over the Missouri River near Rocheport.
The bridge was built in 1960 and carries about 12.5 million vehicles per year. It is currently rated in poor condition.
MoDOT officials have said they plan to keep the current bridge open while the new one is built, reducing traffic delays. The agency is also expected to use funds financed through bonds to help pay for the project. MoDOT had applied for about $178 million for the project.
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