West Terre Haute, IN

Stormwater Master Plan

HWC completed a stormwater master plan for West Terre Haute, Indiana, a town with a long history of drainage and flooding problems. Several levee systems were constructed in the 1960s and 1970s to protect the town from high river stage events.

While the levee system was effective, the town’s internal (minor) drainage systems were inadequate. No comprehensive solution existed to provide positive drainage within the town when the river stage was up and the flood gates for the gravity drainage outlet pipes through the levee were closed. During Wabash River flood events, temporary pumping facilities were set up to discharge excess water.

Worthington, IN

Stormwater Improvements Study

HWC completed an IOCRA approved planning grant funded study evaluating the Town’s wastewater and stormwater infrastructure and recommending improvements to the system components for the Town of Worthington, Indiana, located in Greene County.

Regarding the stormwater analysis, first, a Neighborhood Drainage Survey was prepared, distributed, collected, compiled, and analyzed by HWC. The responses to this survey helped identify six key areas within the Town where stormwater drainage was a problem. From these results, HWC further reviewed and analyzed existing systems and developed recommended stormwater system improvements, including the installation of new storm sewers/inlets, rehabilitation of existing sewers/ditches, re-grading existing ditches, installation of new pipes under the existing railroad, construction of new outlet ditches, new drywell structures, and an overflow detention basin. HWC prioritized the improvements into phases to maximize the benefit to the Town based on the funding source. The overall recommendations of all phases had an estimated cost of approximately $2.8M. However, given the availability of Disaster Relief (DR II) funds through IOCRA in the amount of $1M, the phase recommended, based on the location and priority, was estimated at $965,000, thus allowing use of the use of the DR II $1M grant funds.

Farmersburg, IN

Stormwater Drainage Improvements

This project entailed improving stormwater drainage in the Town of Farmersbug, located along US 41 in Sullivan County, in West Central Indiana. HWC updated a previously completed stormwater drainage master plan for the community, which included over $2.5 million in stormwater handling improvements. The study phase services also included modeling of the drainage basins to verify the scoping assumptions in the study report. At the conclusion of the report, given the available DR funding available through IOCRA, HWC assisted the Town with applying for and securing a $1 million grant to construct the first phase of the stormwater improvements. During the study phase, the Town implemented a stormwater utility, which was used to fund the remainder of the recommendations included in the plan.