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BIG CICERO CREEK FLOOD CONTROL STUDY
FINAL REPORT
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5.0 INITIAL SCREENING OF POTENTIAL ALTERNATIVE SOLUTIONS
The main flooding problems along Big Cicero Creek are located within the City of Tipton along Adams Street between First and Fourth Streets as well as along South Street, in the agricultural areas upstream of Tipton, and along the county roads inundated by flood waters. This chapter presents the preliminary screening of suggested alternatives identified during CBBEL’s analysis and discussions with Tipton residents, farmers, and County personnel. A listing of the noted alternatives and the preliminary screening results are presented in Table 1. The screening was performed using the evaluation criteria provided in Chapter 3.
Table 1.
Initial Screening of Potential Alternatives
I.D. |
Potential Alternative |
Remarks |
Area benefited |
Carried to shortlist of promising alternatives? |
A |
Elevate all affected roads in the study reach to grades above the 100-year flood elevations |
This alternative would be very expensive due to the miles of road affected. Raising the roads could also increase water surface elevations upstream if multiple culverts are not included through floodplain areas. |
County roads |
No |
B |
Control future floodplain development through accurate Flood Insurance maps for the City and the County and strictly enforce ordinances. |
Would not reduce current damages but should prevent increased damages due to future development in the watershed. |
residential |
Yes |
C |
Floodproof affected structures |
Could eliminate existing residential flooding but would not reduce frequency of street and property flooding. |
residential |
Yes |
D |
Buyout or relocate affected structures |
Could eliminate existing residential flooding but would not reduce frequency of street and property flooding. |
residential |
yes |
E |
Construct levees through City of Tipton that would protect areas behind the levees from the 100-year flood. |
Would protect structures and streets from the 100-year flood. |
residential |
Yes |
F |
Construct bypass channel for Buck Creek within the City of Tipton from Adams Street to the park. |
Would not lower flood elevations since Big Cicero Creek controls the elevation in Buck Creek at this point and there is very little fall along Big Cicero Creek to the park. |
residential |
No |
G |
Construct upstream detention pond that would lower the 100-year discharge to reduce water surface elevations below the lowest grade of the existing homes. |
Potentially very expensive. Would protect areas downstream from flood damages. Would not affect upstream flooding. |
Residential, agricultural |
Yes |
H |
Construct a diversion/bypass from just downstream of CR 200W around the City of Tipton that would lower the 100-year water surface elevations below the lowest grade of the existing houses. |
Based on aerial photos, there is no reasonable path for such a bypass channel in this area due to existing development. |
Residential, agricultural |
No |
I |
Construct a major channel improvement through the City of Tipton that lowers 100-year flood elevations below the lowest grade of the existing houses. |
Potentially very expensive. Would help Tipton residents, but likely provide little help upstream. |
Residential, agricultural |
Yes |
J |
Divert Buck Creek around the north end of town |
Would not be a significant enough reduction in discharge to lower elevations below the lowest grades of structures. |
residential |
No |
K |
Participate in the NRCS Floodplain Easement Program. |
Indiana has not received funds for this program for several years. There are already several requests for the funds in areas designated as priority areas for the state. The likelihood of funds being available for any property along Big Cicero Creek is very slim. |
agricultural |
No |
L |
Construct levees upstream of Tipton to protect agricultural areas from the 10-year flood |
Would protect fields from flooding. Potentially expensive and a maintenance issue. Draining fields behind levees would be an issue. |
Agricultural, roads |
Yes |
M |
Construct a large upstream detention basin that would reduce 10-year discharges to the channel capacity discharge. |
Would have the effect of keeping channel at bankfull capacity for longer periods thus preventing drainage from tiles for a longer time. |
Agricultural, roads |
Yes |
N |
Construct several small detention basins to reduce the 10-year discharge to bankfull capacity discharge. |
Would have the effect of keeping channel at bankfull capacity for longer periods thus preventing drainage from tiles for a longer time. |
Agricultural, roads |
Yes |
O |
Construct a diversion /bypass from near Garhart Ditch at CR 300 S to Recobs Ditch to reduce the 10-year discharge downstream to bankfull capacity |
Would involve constructing 3 new road crossings and one RR crossing. Would be expensive due to land acquisition costs on top of construction costs. However, has the potential for reducing flood elevations |
Agricultural, residential, roads |
Yes |
P |
Straighten the channel between Main Street and CR 200W in order to reduce upstream elevations and allow water to drain faster. |
This would remove the meander which would increase the channel slope and, therefore, velocity of flow. There are many potential issues including land acquisition, potential erosion problems, and environmental issues. |
Agricultural, residential |
Yes |
Q |
Widen &/or deepen Big Cicero Creek channel upstream of the City of Tipton in order to confine the 10-year flood to the channel. |
The goal here is to increase the conveyance capacity of the ditch through the farm fields west of Tipton. This would reduce the frequency and severity of flooding. |
Agricultural, roads |
Yes |
R |
Regrade fields to provide “sacrificial swales” so flood waters flowing across fields are spread out over less area. |
Does not lessen the frequency with which overbank flooding occurs but may lessen the damage caused by the flooding. Does not lower flood elevations. |
agricultural |
Yes |
S |
Create a bypass channel from the tributary along CR 500W to Garhart Ditch to provide an overflow path that confines the 10-year flood discharge within its banks. |
This alternative would concentrate the flow from the Creek backing up into a channel instead of running across the fields. It would require two new road crossings |
Agricultural, roads |
Yes |
T |
Remove abandoned interurban piers. |
This would reduce potential for catching of debris and associated localized increases in flood elevations |
Residential |
Yes |
U |
Construct bypass channel from upstream of RR to downstream of Tobin Ditch confluence. |
This would potentially allow for additional capacity to lower and remove flood waters from upstream properties faster. |
residential |
Yes |
V |
Remove CR 300 W |
This would potentially remove an existing “bottleneck” to flow. |
agricultural |
Yes |
W |
Various combinations of above alternatives |
Several alternatives presented above may not have a significant impact alone. However, when combined with other alternatives, the result may help meet the technical criteria. |
Roads, agricultural, residential |
Yes |
Based on the screening process, a short-list of promising alternatives was compiled. In order to compare the relative effectiveness of the recommended alternatives and to act as a base-condition model, a “Do Nothing” scenario is included on the short-list, presented in Table 2.
Table 2. Short List of Promising Alternatives
Alternative # |
Description |
0 |
Do Nothing (Base-Condition) |
1 |
Channel Improvement |
2 |
Levees |
3 |
Detention basin(s) |
4 |
Bypass/auxiliary channel |
5 |
Regrade fields to provide “sacrificial swale” |
6 |
Remove old interurban RR piers |
7 |
Remove CR 300 W road fill and structure |
8 |
Voluntary buyouts of buildings in the floodplain |
9 |
Floodproofing of Buildings in the Floodplain |
10 |
Control future floodplain development thru accurate FIS maps and enforcement of updated ordinances |
11 |
Combinations of Alternatives |
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