FLOOD01627

• County: Statewide
• Community: Nemaha County Nebraska
• Stream Name: Missouri River Miles 532.4-528.9
• Title: Langdon Bend Habitat Restoration/Preservation Project Volume 3
• Date: 6/1/1995
• Prepared For: US Army Corps of Engineers
• Prepared By: Greenhorne & O'Mara, Inc.
• Floodplain - Doc Type: Project

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Fri 16 Jun 1995
Eff. Date 03/21/95
PROJECT NOTES

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PROJECT LANGA2;

U.S. Army Corps of Engineers
Langdon Bend Alternative A2 - Nemaha County, NE
FEASIBILITY ESTIMATE

TIME 14:23:51

TITLE PAGE 2

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LABOR In: CIVTTA

This alternative consists of excavating a 25' wide pilot channel with
2H to IV sideslopes. The pilot channel will have riprap inlet and outlet
structures, and a grade control structure all of which are sized for
the ultimate channel width of 200'. The excess material generated by
clearing and grubbing will be placed in rows just beyound the limits of
disturbance. The excess material generated by the pilot channel will be
placed in a berm along the east side of the channel. Cleared and Grubbed
material will be left on site.

The project was designed by Greenborne & Q'Mara, Inc. and quantities for the
estimate were completed by the same A & E firm.

Contingencies for the project are set at 20\. planning, Engineering, &
Design were assumed to be 5% of construction costs based on the Corp's review
comments which are included in the supporting data for this report provided
under separate cover. Construction Management was set at 6% based on the
project template sent by the Corps.

EQUIP ID: MR0054

CUrrency in DOLLARS

CREW 10: MRONAT

UPS 1D: MRON93