www.enr.com/articles/3545-corps-of-engineers-focuses-on-costs-strategy-of-mississippi-basin-flood-repairs

Corps of Engineers Focuses on Costs, Strategy of Mississippi Basin Flood Repairs

November 7, 2011
Corps of Engineers Focuses on Costs, Strategy of Mississippi Basin Flood Repairs

As time races toward fall floods and potential disaster along the Mississippi River and Tributaries System, the U.S. Army Corps of Engineers is at work on 10 projects—damaged by high water this past spring and summer—that the agency deems most critical to protect life and safety. This work is worth an estimated $75.8 million, but the Corps wants to focus on the long term. Both the public and policymakers should realize the U.S. faces increased risk to life, property, navigation and economics until the entire MR&T is restored to its pre-2011 strength—a feat that will require about $2 billion and take up to 15 years at current funding rates.

In Congress, both houses appear poised to fund about $1 billion in repairs, but the Supercommittee that is supposed to deliver a proposal by Thanksgiving to cut more than $1.2 trillion in spending over 10 years has yet to present its decisions, which will either make specific cuts or, if the committee cannot agree, trigger automatic across-the-board cuts.

“We want the states and the public who live behind these levees to know we currently do not have the funding to do these items on the list,” says Scott Whitney, regional flood-risk manager for the Corps' Mississippi Valley Division. He says the levees performed, but they were stressed and now may not be able to handle even moderate flooding. He predicts “an extended period of risk for an extended period of time.”

Since May, Corps engineers have compiled damage assessments and rough construction-cost estimates on the Mississippi and its subsystems from Cairo, Ill., to the Gulf of Mexico.

Further west, flooding in the Souris and Missouri rivers and tributaries continued through September, so assessments are just beginning there. Repairs won't be possible before winter. Thus, many of those areas will enter a new spring flood season with increased vulnerability.

“This is a big deal, and it's not going away any time soon,” Whitney says. “Even with an endless pot of money, considering the magnitude and geographic scale of the damage, we can't turn that many projects that fast.”

The Top 10

The Corps has identified 93 projects in the MR&T that comprise almost 3,000 damaged elements that should be repaired by the fall flood season. Estimates range from $704 million to $793 million. Of the 93, the Corps ranks only its top 10 priorities. The Corps cannot compile a complete, ranked list until it assesses damages in tributaries north of Cairo and weighs all MR&T needs against other priorities.

The top-priority project is to restore to a safe elevation the approximately four miles of levee blown up to operate the Birds Point-New Madrid floodway. The levee protects 133,000 acres of farmland. “We pulled funds from flood-response money to make the area safe by getting rid of debris and blast material and filling a 45-ft-deep scour hole that crossed a county road,” Whitney says.

The Corps also built a temporary berm along the line of the previous levee but needs $18.5 million more to bring it to +55 ft by Nov. 30. That elevation is shy of the +62 ft design height. Whitney says the shortfall translates into a 6% chance of overtopping. “At +51 feet, it would have been exceeded 12 times over the past 20 years,” he says.



The floodway repairs are typical of challenges throughout the flood-damaged system, including the need for speedy construction and the sensitivities raised when improving in some areas but not in others. “When you have a system that has been degraded and damaged, you can't start at the top and work down,” Whitney says. “If I repair on the left bank and have a weak point on the right bank, there will be a problem.”

The USACE presented its list of 10 funded projects to representatives of Illinois, Missouri, Tennessee, Kentucky, Arkansas, Mississippi and Louisiana on Oct. 20 at a New Orleans meeting of the Interagency Recovery Task Force. The group was formed by the Corps to devise solutions to repair the flood damage.

“Identifying the critical needs helps us to focus where our attention needs to be and will help us to secure necessary funds,” explains Jerome Zeringue, deputy executive director of Louisiana's Coastal Protection and Restoration Authority. Zeringue is happy that two Louisiana projects, estimated at $10.6 million total, made the list, but Corps estimates indicate the system in Louisiana has another $531.4 million in damages.

The list also is useful for state emergency management planning, says Mike Womack, director of the Mississippi Emergency Management Authority. “We were fortunate that two of our highest- priority projects are funded, but the third was just slightly less of a risk than the other two,” Womack says. He says the state will work with locals to apprise them of the risk and make sure they have a response plan and materials staged.

Many projects didn't make the list because they don't pose an immediate risk to life safety. But they still may have tremendous adverse effects on levee districts, navigation and maintenance costs. For example, a 2,700-linear-ft stretch of top bank was eroded from the Merriwether-Cherokee levee in Tiptonville, Tenn. “The river tried to go straight across the peninsula and carve off nine miles,” Whitney says. “If we have another flood and we lose this top bank, we will lose nine miles of river channel that has $54 million of river training structures already in place. That would also destabilize areas up and down the river and have a domino effect.”

U.S. Coast Guard Cmdr. Tom Wendt, chief of the Coast Guard's Waterways Management Branch, District 8, says knowing the areas of damage and USACE's plan of action means the Coast Guard “is better positioned to address likely scenarios” that may result in a disruption to marine transportation. He says Coast Guard captains of the ports in the western rivers have been working with stakeholders since the end of the high-water season to capture lessons learned and update action plans.

No Pot of Gold

There doesn't seem to be much prospect of Congress opening up an endless pot of money for MR&T repairs. In 2008, during flood recovery in the upper Mississippi River system, Congress had authorized $250 million before the end of that summer, Whitney says. Now, however, “they were pretty silent during this flood.”

Armed with only the current operating budget, Assistant Secretary of the Army for Civil Works Jo-Ellen Darcy authorized funds to be pulled from other Corps projects to address the MR&T's most urgent needs. USACE gleaned $282 million from its three-year, 2011-13 budget from other projects nationwide. That amount will cover the $75.8 million needed for the top-10 ranked projects, but it doesn't come near the Corps' estimates to restore the whole system.

Further, the October estimate of $704.1 million for the list of 93 is dynamic, Whitney adds. “Those are relative order-of-magnitude costs that we put together quickly based on the information we had in August. As we get closer to construction, costs will be refined. Repair alternatives have not been nailed down.”



‘All Bets Are Off’


The Corps is self-performing most of the work on the top 10, using existing construction crews or pulling people off its mat-sinking unit, so contractors aren't really seeing a lot of new work from flood repairs, says Freddie Rush, executive vice president, Mississippi Valley Branch of the Associated General Contractors of America. Additionally, Rush's member contractors are worried the Corps will pull the plug on ongoing projects, particularly work on the Greater New Orleans Hurricane and Storm Damage Risk Reduction System in New Orleans.

“At our last quarterly meeting with Corps [Mississippi Valley Division] staff members, we were assured that wouldn't happen,” Rush says. Yet he already has seen closure of some harbor ports because so much silt was deposited from the spring floods, and the Corps doesn't have money to dredge.

“Our commanding general is telling states to be forewarned: Nothing is sacred,” Whitney says. “This will affect projects across the country as they become donors to this emergency.”

Louisiana's Zeringue is hoping Congress will set aside funds for MR&T repairs before Louisiana's other Corps projects are adversely affected. “The Army Corps is subject to robbing some of those funds to be used for the MR&T system,” Zeringue says. “We believe it shouldn't, but who knows? All bets are off. Until a project is complete, anything is susceptible to consequences of funding loss.”

Rush is hoping Congress will pass appropriations before the congressional Supercommittee acts. The AGC has encouraged members to urge their representatives and senators to pass funding as soon as possible. “So many in Congress have been elected on the basis of cutting back on spending or doing away with earmarks,” Rush says. “I know the Corps is struggling because they don't have funding, but Congress is ultimately responsible. And the Corps has told us it is not just about the MR&T but a national picture.”

Womack believes that assessing the MR&T's needs in the context of all the nation's hazards is the right approach.

“The tendency in this country is to spend money on the last big disaster,” Womack says. “The cost to repair the system is going to be very high.” However, while Mississippi River flooding is on Mississippi's top-five list for disaster planning, he notes the state lost 35 lives to tornadoes in 2011. “Certainly we have a terrorism risk, tornadoes, floods, hurricanes and earthquakes. We, as a nation, have to look at the threat of Mississippi River flooding along with all the other threats and realize we can't spend all of our money on one particular hazard.”

Flood Control

BPNM Floodway—Make safe and stableMRLMVMMo.Mississippi$18,500
Cache: CairoCIMVMIll.Alexander$26,110
City of CairoMRLMVMIll.Alexander$3,000
Cairo parcel 5MRLMVMIll.Alexander$7,000
Above Cairo parcel 2a—Relief WellsMRLMVMIll.Alexander$1,500
Above Cairo parcel 2aMRLMVMIll.Alexander$5,500
Buck ChuteMRLMVKMiss.Warren$2,640
Albermarle SlideMRLMVKMiss.Issaquena$1,006
Duncan PointMRLMVNLa.E. Baton Rouge$8,850
Baton Rouge frontMRLMVNLa.E. Baton Rouge$1,762
PHASE 1: TOTAL CONSTRUCTION FUNDING RECEIVED$75,868
FEATURE CODES: MRL=MISSISSIPPI RIVER LEVEE, CI=Channel Improvements CORP DISTRICTS: MVM=MEMPHIS DISTRICT,MVK=VICKSBURG DISTRICT, MVN=New orleans DISTRICT SOURCE: USACE.