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Traffic Update: Maintenance work is being done in the Lindbergh Tunnel each day this week from 9 until 2:30 p.m. This weeklong project requires the right lane of the northbound cell to be closed. Please allow extra travel time if using this route near the airport. 

Travel Update: Coronavirus (COVID-19): For everyone's safety, masks are now required at STL. Get the latest information.

How to report mask violations at the airport. Online form

Airport Layout Plan

The St. Louis Airport Authority (STLAA) and the City of St. Louis are continuing the process of its current Airport Layout Plan (ALP) Update for STL. Rhonda Hamm-Niebruegge, Director of St. Louis Lambert International Airport (STL) is reminding those that are participating in the process, “We are in challenging times and know many people feel uncertainty, but for STL there are pressing issues to address.” Hamm-Niebruegge adds, “The ALP Update will help the STLAA make development decisions so that we are in the best possible position as the recovery moves forward.” 

What is an ALP? An Airport Layout Plan (ALP) serves as a critical planning tool that depicts both existing facilities and planned development for an airport and enables a facility to continue receiving federal grant funds for certain projects. This ALP will guide STL development for the next 20 years, as it shapes how FAA allocates airport funding.

To meet federal requirements, the STLAA must carry out an approved ALP that shows:

  • Proposed additions to all areas owned or controlled by STL for airport purposes
  • Existing and proposed airport facilities and structures
  • Existing and proposed non-aviation areas and improvements.

The ALP process is complex and requires many technical analyses, discussion with airport stakeholders, and consideration towards industry standards and future conditions.

What is the desired outcome of the ALP? The intent of this ALP Update is to provide the STLAA and the City of St. Louis a guide for future airport development to meet short-term and long-term aviation demand. The last such study was completed in 2012 (Lambert-St. Louis International Airport Master Plan Update). The Update will provide guidance to enable the STLAA to strategically position its facilities, such as runways and support facilities, for maximum efficiency and business effectiveness. The ALP will guide airport development for the next 20 years, as this shapes how FAA allocates airport funding.  However, proposed projects on the ALP generally still require future financial and environmental approval, and appropriate permits before design and construction can proceed.

What is the schedule and when can you give feedback? The Update complies with FAA guidance on airport development and master planning as well as airport design standards. The FAA requirements for the Update include gathering public feedback through the process. This webpage will provide information on the Update throughout the process and offer surveys at key milestones for public feedback.

The Update was started in the winter of 2019/2020 and is scheduled for completion in summer of 2021. During this time, we will have three opportunities for public feedback using online surveys. These surveys will focus on how to improve the airport experience and collect feedback for the ideas developed. You can give feedback on the Update by participating in an upcoming ALP Survey.   

(STL's ALP Public Survey #1 is now closed – Thanks to everyone who shared their thoughts, opinions and observations. Way to huSTLe! Didn’t get a chance to provide input – don’t worry, there will be future opportunities to provide input to the ALP Update, just stay tuned!)

Have more questions on the ALP Update? If you have more questions on the Update, please contact Dana Ryan, STL Airport Planning Manager at