Cedar Creek Omaha (F&W)

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Cedar Creek Omaha (F&W) Restoration Information

Background: The Cedar Creek (Omaha F&W) – Platte River Right Bank Levee System was damaged during the 2019 Flood Event, leading to the Project Sponsor submitting a Public Law (PL) 84-99 Rehabilitation Assistance request to the US Army Corps of Engineers – Omaha District.

Current Action: Close out the construction contract.

Restoration Activities:

	Full Repair Contract
Contractor	Midwest Construction from Nebraska City, NE
Contract Amount	$1,343,000
Contract Award	October 4, 2019
Construction Start	Late October 2019
Completion	December 12, 2019

Status Updates:

10 January 2020 - Work on the Cedar Creek levee repair contract is complete.

18 December 2019 - Work on the Cedar Creek levee repair contract is complete with final inspection occurring on 12 December 2019. The team is currently working on closing out the contract.

06 December 2019 - The contractor is currently 97 percent complete with levee repair work. The pre-final inspection was conducted on 25 November 2019 with final inspection tentatively scheduled for the week of 09 December 2019.

22 November 2019 - The contractor is placing riprap and bedding materials at two of the three damage locations, seeding the third damage location and is expected to be substantially complete with repairs by the end of the month.

08 November 2019 - The contractor mobilized to the site on 30 October 2019 and has begun work on repairing the levee.

24 October 2019 - The pre-construction team meeting was held on 16 October 2019 with notice to proceed issued on the same day. The contractor is scheduled to mobilize to the site to begin repairs on 28 October 2019.

13 October 2019 - Pre-construction team meeting is scheduled for the week of 14 October 2019, at which time it is anticipated notice to proceed with repairs will be issued and the contractor can begin the repair work.

04 October 2019 – The levee repair contract was awarded to Midwest Construction of Nebraska City, NE in the amount of $1,343,000 on 04 October 2019. The repair is estimated to be complete in mid April 2020.

27 September 2019 – Funds to repair the Cedar Creek levee system have been received. The construction contract is scheduled to be awarded by 04 October 2019.

13 September 2019 – The bid opening occurred on 04 Sep 2019. It is anticipated that this project will be awarded within a few weeks, pending receipt of project funding from USACE HQ.

04 September 2019 – Correction. The bid opening was conducted on 04 Sep 2019 and the team is anticipating awarding the construction contract by mid-to-late September.

29 August 2019 – A construction contract to repair the Cedar Creek levee system was advertised to pre-qualified contractors on 21 August 2019 with award anticipated around 04 September 2019. The pre-qualified contractors conducted a site visit on 29 August 2019 to view the scope of work on site in order to make an accurate bid.

23 August 2019 – The team is on scheduled to be done with the E&D process late summer. The project was advertised to the pre-qualified Contractor Pool on 21 August 2019 with award anticipated around 04 September 2019.

05 August 2019 – Engineering and Design (E&D) work continues for rehabilitating the Cedar Creek levee system. The team is still anticipating to be done with the E&D process by late summer.

16 July 2019 – An initial site damage assessment and economic analysis has been completed. From this initial assessment the USACE team has determined that there are damages to the levee system that are eligible for PL 84-99 Rehabilitation Assistance. Engineering and Design (E&D) work is on-going for rehabilitating the Cedar Creek Levee System. The team is anticipating to be done with the E&D process for repairing the damage identified by the late-summer 2019.

NOAA River Level Observations & Forecasts

NOAA Water Gauge Levels

Cedar Creek Omaha (F&W) Levee Imagery

Final inspection of Cedar Creek levee repair, Dec. 12, 2019

Cedar Creek Plan In-hand Review Aug. 7, 2019

USACE Engineering and Construction Team and the Local Levee Sponsor conducting the Plan In-Hand Review on the Cedar Creek Levee Aug. 7, 2019.

Cedar Creek levee May 16, 2019

Erosion and scour along the riverside channel bank extending into the levee section at Cedar Creek levee May 16, 2019.

Cedar Creek levee May 16, 2019

Minor damage to the levee crest due to high water overtopping the Cedar Creek levee May 16, 2019.

Cedar Creek Site Visit Aug. 29, 2019

Pre-qualified contractors conduct a site visit at the Cedar Creek levee on Aug. 29, 2019 to view the scope of work on site in order to make an accurate bid.

Video Gallery

Video by Sgt. Rodney Roldan

The Mosul Dam Project

Combined Joint Task Force - Operation Inherent Resolve

Sept. 1, 2018 | 3:11

Mosul Dam, formerly known as Saddam Dam, is the largest dam in Iraq. It is located on the Tigris River in the western governorate of Ninawa, upstream of the city of Mosul. The dam serves to generate hydroelectricity and provide water for downstream irrigation. At full capacity, the structure holds about 11.1 cubic kilometres (2.7 cu mi) of water and provides electricity to the 1.7 million residents of Mosul. It is the fourth largest dam in the Middle East, as measured by reserve capacity, capturing snowmelt from Turkey, some 70 miles (110 km) north. Built on a karst foundation, concerns over the dam's instability have led to major remediation and rehabilitation efforts since the 2003 invasion of Iraq.

For several weeks in July and August 2014, Islamic State of Iraq and Syria held Mosul Dam. On August 7, 2014, the organization captured the dam complex from the Peshmerga. ISIL's control of the dam created fears that its power supply could be restricted or that its water flows to downstream areas would be greatly inhibited. In a less likely scenario, there were worries the dam could be breached, causing widespread flooding and destruction downstream.

On August 17, 2014, the Peshmerga and the Iraqi Army launched a successful operation to retake control of the dam from ISIL militants. United States airstrikes assisted the Kurdish and Iraqi military, damaging or destroying 19 vehicles belonging to ISIS, as well as striking an ISIL checkpoint near the dam.

In January 2016, U.S. General Sean MacFarland warned that the dam might undergo a "catastrophic" collapse. He added, "What we do know is this—if this dam were in the United States, we would have drained the lake behind it." Maintenance had suffered as ISIL had removed equipment and chased technicians away in August 2014, and the grouting schedule had not been maintained. He indicated that contingency plans are in the works to protect people downstream in case of a collapse.

In February 2016, the United States Embassy in Iraq warned of a "serious and unprecedented" danger of the dam collapsing and suggested that plans for evacuation should be made, as the cities Mosul, Tikrit, Samarra, and Baghdad could be at risk in the event of collapse, and that up to 1.5 million people could be killed due to the ensuing flash floods.

The repairs were started in October 2016. In May 2017, Iraqi Minister of Water Resources Hassan Janabi stated that no danger to the dam remained and it was going back to normal operation. Carlo Crippa, the project manager, said the dam structure now showed no significant signs of distress. (U.S. Army video by Sgt. Rodney Roldan)