Background/Discussion
The Eastern Hills Drive Segment D (PW19-16A) project and the Steven Road East (PW18-16B) project require the construction of four large box culverts in the existing channel of Little Pony Creek and in one tributary of Little Pony Creek.
The construction of the box culverts creates stream impacts that are required to be mitigated per the USACE 404 Permit.
On-site mitigation opportunities for both projects is limited due to the amount of right-of-way available adjacent to the streams. Any on-site improvements would provide little overall benefit to the watershed and were not sufficient to satisfy the mitigation needs of the projects.
Off-site mitigation alternatives were reviewed and the selected alternative is the restoration and enhancement of the west bank of Mosquito Creek, north and south of Valley View Park. The mitigation will provide additional flood storage, and both nutrient and sediment retention capacity. The project also restores native grasses and trees.
The estimated construction cost for the project is $280,000 with funding provided by the City of Council Bluffs and Pottawattamie County. The City’s 50% share will be paid using Sales Tax Funds.
| The project schedule is as follows: |
Set Public Hearing |
September 10, 2018 |
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Hold Public Hearing |
September 24, 2018 |
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Bid Letting |
October 11, 2018 |
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Award |
October 22, 2018 |
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Construction Start |
November 2018 |
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