Why is this project needed?

Increased stream velocity due to stormwater systems have contributed to the degradation of the banks, destabilization of the creek, undercutting of sanitary sewer crossings and sedimentation in the creek and Langan Park Lake.

How were phases 1 & 2 addressed?

In order to reduce downstream sedimentation, the banks and streambed of Twelve Mile Creek from East Drive to Langan Park Lake will be stabilized. Instream structures will be constructed to reduce stream velocity/energy, protect existing sanitary sewer crossings, and increase natural habitat. Dredging of Langan Park Lake will increase the capacity of the lake, support flood control and aid in the apple snail abatement.

Phase 3: Langan Lake Dredging

When is the project expected to start and how long will it take?
Work is expected to begin in early 2025 and take a year to complete. A specific construction schedule will be established once a contractor is hired for the work.

What park facilities will be affected during construction?
The large parking lot will be a staging area. Project planners anticipate that the parking area near the lake’s northwest shore will serve as a staging area for the work. There, dredged silt—enough to cover 145 football fields with one foot of dredged sediment—will be processed in one of two ways: either using large “dewatering bags” or by letting the silt partially air dry before removing it from the site.

Stormwater channel. The northeast side of the park will also be a work site where some dredged material will be relocated. There, the concrete drainage channel between Zeigler Boulevard and Langan Lake will be converted into a more natural stream channel with rocks and landscaping. This aspect of the project will improve public safety, reduce the amount of sediment and pollutants that reach the lake, and improve the appearance of this section of the park. Walking trails in this area will be temporarily re-routed.

Work site protection and path re-routing. At various points, the lake’s shoreline will be fenced to protect visitors, workers, and wildlife. Other work sites including the stormwater channel between Zeigler Boulevard the east side of the lake and will be temporarily closed. Walking trails through affected areas will be temporarily re-routed. The pedestrian bridge over the lake will be affected as well and reopened once safe to do so.

Access to other park facilities. Other Langan Lake facilities including pavilions, playgrounds, disc golf, restrooms, walking paths, and other parking areas will remain open.

Where can I park?
Other parking areas throughout the park will remain open during the project and will be adequate to accommodate visitors.

Will wildlife be harmed during the project?
Langan Lake is home to many birds, fish, and reptiles, both native and nonnative. The lake’s large island serves as a refuge for many animals. That island will not be changed during the project and workers will take great care not to disturb wildlife. Please be respectful and keep a safe distance from wildlife. Never feed or disturb wildlife.

Will there be noise?
Yes, there will be some noise from machinery during work times, which will be 7am to 5pm Monday through Friday.

Where can I learn more?
Contact the City at LanganLake@cityofmobile.org or visit the project page to sign-up for email updates at: https://mapformobile.org/3mcwatershed/