Preliminary Designs
Through the analysis of erosion issues on the site, the potential for slope instability, and needed revetment modifications, three preliminary designs were devised. The results of the various analyses were combined with the desires of Chi Psi Fraternity to design three comprehensive designs. The three designs vary based on their complexity, design elements, and revitalization effectiveness. All three designs utilize improved revetment to reduce erosion that could lead to slope instability. Additionally, a council ring is added in all three designs, giving residents of Alpha Iota Lodge additional means to enjoy their property. The preliminary designs will allow for the revitalization of Alpha Iota Lodge’s waterfront, giving the member of the Chi Psi Fraternity a safe place to call home for decades to come.
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Minimal Revitalization
The Minimal Revitalization design calls for revetment and a terraced retaining wall. The revetment will extend along the entirety of the site. It will use Type 4 revetment called for in the revetment design and results sections. Minimal work will be done at the toe of the slope other than the additional revetment. On the east portion of the site a single terrace will be put in place to deter erosion and increase the stability of the slope. Using a single terrace gives ample room for elevating the council ring on the terrace. Using the terrace for the council ring allows for a larger space than at the toe of the slope. To give access to the council ring an additional staircase will be constructed from the lakefront. Minimal work will be done on the existing slope other than introducing natural vegetation to combat further erosion. The Minimal Revitalization design assumes that the stability of the slope is adequate where the existing retaining wall in in place given that erosion is halted with the addition of revetment.
Full Terrace Revitalization
The Full Terrace Revitalization strategy calls for the addition of terraced retaining walls across the entire site. The design will use a series of three terraces to fully support the slope and substantially increase the stability of the slope. The existing retaining wall will be used in the design, with two similar walls being added farther down the slope. The terraced walls will extend to the eastern side of the site to remediate the erosion issues on that portion of the site. Revetment will be added on shoreline that followed the design requirements in the revetment analysis and design sections. Type D revetment will be used to reduce ice damage which has been the primary cause for deterioration of the existing revetment. Using a series of terraced retaining walls will be ample room for the council ring to be located directly on the water front, between the lowest retaining wall and the added revetment.
Extensive Revitalization
An extensive revitalization of the Alpha Iota Lodge lakefront would not only increase slope stability by reducing erosion, but would also reintroduce wildlife habitat along the shore. The Extensive Revitalization design will use Type 4 revetment called for in the revetment design and results sections. Additional fill will be added to increase area on the lakefront to accommodate for the council ring. Two perpendicular breakwaters will extend into the lake to create a pocket beach. The beach will naturally form as shoreline sediment is deposited. The pocket beach will act as fish habitat, as well as promote natural grasses and vegetation. Much of the revetment used will allow for the use of natural vegetation to help reduce runoff and increase wildlife habitat. A series of terraced walls will be built on the east side of the site to solve the erosion issues currently present. The majority of the site will be further stabilized using natural vegetation.
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These preliminary designs serve as an assortment of the revitalization option for the Alpha Iota Lodge. Any or all of the techniques and strategies used in the three designs can be used to customize the lakefront to the needs and desires of Chi Psi Fraternity.
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