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Big Muddy Speaker Series presents:

Replacing a Missouri River Bridge

Illustrated river waves in white
Presented by Lanny Miller
fairfax bridge

The southbound Route 69 Bridge, commonly referred to as the Fairfax Bridge, was built in 1933. The northbound Route 69 Bridge, commonly referred to as the Platte Purchase Bridge, was built in 1957.  Both were built to accommodate the type, size, and weight of vehicles at the time of construction, and were not designed for the high volume and heavy weight limits of truck traffic that you typically find today within the heavy industrial zone where these bridges are located. Narrow lanes and load limitations restrict the use of each bridge by overweight and oversized vehicles.  Because of their age, both structures require frequent maintenance and costly repairs, causing motorists further delay.

Lanny will give an overview of the US69 Missouri River Bridge Replacement project and discuss the project construction to date with particular emphasis on the old Fairfax Bridge demolition.

Meet Your Presenter

Big Muddy Speaker Series

Lanny Miller

, P.D., Project Manager, American Bridge Company

Lanny Miller is a Senior Project Manager for American Bridge Company. He graduated with a civil engineering degree from KSU. Lanny has been with American Bridge for the past 5 years and has a total of 23 years of experience in Heavy/Highway design and construction.

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The Big Muddy Speakers Series in Kansas City

is hosted by these wonderful partners!

Thanks to all of our venue hosts for making this possible! Click here for a list of upcoming presentations» The Big Muddy Speaker Series is also held monthly in Rocheport and St. Charles.

Recordings of Presentations

Kansas City Digital Video has been recording Big Muddy Speaker Series presentations. These are available on their website at this link. Some contain synchronized powerpoint presentations. We will be posting these to the archived presentation pages on bigmuddyspeakers.org. Thanks Micheal Morgan and crew for putting this important archive online! The Big Muddy Speaker Series is partially funded by the Columbia Ecological Services Field Office (USFWS) and the Mo. Dept. of Conservation.

Upcoming Presentations

Leave No Trace Training on the Barge

October 14, 2026
St. Louis, MO

Join us for a special Big Muddy Speaker Series on the Living Lands & Waters Barge where Perry Whitaker will lead us in a Leave No Trace Training.

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Missouri River Relief: 25 Years on the Big Muddy

November 10, 2026
Columbia, MO

Join us for a journey through time celebrating 25 years of Missouri River Relief's work on the Big Muddy.

See Event

Plastic Pollution, Gulf Hypoxia, and Water Quality

November 11, 2026
St Charles, MO

Jennifer Wendt from MidAmerica Clean Future guides us through understanding regional water quality challenges.

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Disclaimer

The views and opinions expressed by our presenters do not necessarily reflect the view or policies of Missouri River Relief, the Big Muddy Speaker Series or any of the partners that support this public forum. The Big Muddy Speaker Series believes that hearing diverse perspectives is a crucial building block for an informed public.
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