Corps of Engineers - Little Rock District

160th Committee Meeting
October 19-21, 2010
Lake Murray State Park
Ardmore, Okla.

Arkansas River Basin Studies

Arkansas/White Cutoff Containment Structure

The Little Rock District is conducting a multi-year general reevaluation study to determine a long-term solution to the Arkansas/White cutoff issue on the lower White and Arkansas Rivers.  The Arkansas/White Cutoff is an element of the McClellan-Kerr Arkansas River Navigation System (MKARNS) and is in Arkansas County, Arkansas.  A natural cutoff between the lower White and Arkansas rivers was closed during development of MKARNS to create a more reliable navigation system.  A new cutoff developed in the 1970’s and 80’s in the Melinda Channel-Owens Lake corridor that spawned construction of the Arkansas/White Cutoff Containment Structure at a cost of over $15M.  Since its completion in 1992, the Corps has been required to continue to fund repairs to reduce the possibility of a cutoff.

In spite of these repairs, erosion continues to threaten a cutoff that would cause significant dredging and dangerous cross-flows when the Arkansas River flows into the White River.  But more importantly, a cutoff would potentially re-route the flow from the lower 10 miles of the White River into a non-navigable reach of the Arkansas River causing loss of navigation between the Mississippi River and over 400 miles of the McClellan-Kerr Arkansas River Navigation System for up to 110 days.  Approximately 200 acres of mature bottomland forest and wetlands would also potentially be destroyed.

A General Re-evaluation Report was being prepared to present alternatives that would significantly reduce the risk of a cutoff.  However, the draft report recommended the No Action Plan due to constraints that cause the economical long-term solution to be non implementable.  Since none of the long-term structural solutions outlined in a Draft General Reevaluation Report (GRR) are implementable, due to either environmental or economical constraints, continued maintenance of existing structures is recommended.  The highest priority structure within the existing cutoff containment system is the construction of a new Melinda Structure at an approximate cost of $15 million to reduce the risk of Melinda Structure failure and thus a higher cutoff risk.  This structure was built in the early 1990’s and has deteriorated significantly to the brink of failure.  A long-term solution to a potential cutoff has the possibility of being constructed through the completion of an authorized and funded Three Rivers Study.

Meanwhile, the Melinda Structure has significantly deteriorated since its inception in 1990 and is in need of replacement at a cost of $15 million.   The damage to the south structure at Jim Smith Lake that occurred in 2005 was repaired in January 2009.  A study is also underway to determine if bank stabilization is needed on each side of the river bank near Jim Smith Lake.

Fourche Creek @ Hindman Park, Section 206

In FY03 $10,000 was allocated to determine feasibility of a Section 206 ecosystem restoration project on Fourche Creek in the area of Hindman Park in southwest Little Rock. The City of Little Rock, the Audubon Society and the Arkansas Game and Fish Commission requested the project.   The project was re-started in FY10 after federal funding delays and the city of Little Rock requested the project shift focus to Coleman Creek a tributary to Fourche Creek.  The project is part of a redevelopment plan that cleans up the creek and adds biking and walking trails that connects to a larger trail network.  We received $90,000 in FY 2010 and awarded a contract to FTN Associates to complete the Feasibility Phase for $80,000.  It is anticipated we begin design and construction in late summer of 2011.

Rock Creek @ Boyle Park, Section 1135

The City of Little Rock, the Audubon Society and the Arkansas Game and Fish Commission have requested the Little Rock District investigate the feasibility of restoring the habitat along portions of Rock Creek in the vicinity of Boyle Park and Kanis Park.  The project hopes to restore fisheries, eradicate invasive plants and prevent stream bank erosion.  The project is classified under the Continuing Authorities Program and is authorized under Section 1135(b) of the Water Resources Development Act of 1986.  The project received $100,000 in Feasibility Funds and $50,000 in design and implementation funds in FY2009.  The project initiated the feasibility process with funds received in FY09.  Due to higher priorities, the project has been on hold; however, the team expected to complete Feasibility Phase by late summer.

May Branch, Fort Smith, AR

May Branch is a tributary of the Arkansas River and flows through downtown Fort Smith.  The downstream portion of the stream flows through a covered conduit and is released through a levee into the Arkansas River.  During heavy rains, May Branch overflows the conduit and floods portions of downtown Fort Smith.  .  The ASA(CW) approved on 27 October 2005 the locally preferred plan that essentially provides protection for a 100-year frequency event to be cost shared in fully by the Corps.  The project, consisting of an open channel with road and railroad crossings and a gated structure through the levee, was authorized by WRDA 2007.  The project is estimated to cost $31.5 million.  Preconstruction, engineering, and design was initiated in FY 2008 with a $107,000 appropriation.  A design agreement was executed with the city of Fort Smith on 21 October 2008 and the city provided its entire cash share of $554,000.  Surveys and borings were done in FY 2009 with a Federal appropriation of $109,000.  The channel alignment is being determined using the $179,000 FY10 appropriation.

Pine Mountain Dam – General Reevaluation Report

In August 2010 the Pine Mountain Dam project was suspended by the sponsors.  The Pine Mountain Dam project looks at alternatives for a clean and sustainable source of municipal water for the River Valley Regional Water District (RVRWD).  The project was authorized in the Flood Control Act of 1965, for a dam site at mile 35.7 on Lee Creek 12 miles north of Van Buren, Arkansas, in Crawford County.  The alternatives, including the authorized project, will be evaluated against the without project conditions, which is for the RVRWD to continue to buy water from Lake Fort Smith.  This project is not budgeted for through the normal Corps Budgetary process because it is a water supply only project.

Reconnaissance studies indicated a continued Federal interest and a willing local sponsor, RVRWD.  General Reevaluations and design activities under the Preconstruction Engineering and Design (PED) phase have been initiated.  The aerial topography and LIDAR has been completed.  Cultural Resources of the Pine Mountain Dam area of impact has been completed.  The contracts for the affected environment portion of the Environmental Impact Statement and the water needs analysis for the area will be terminated without a final report at the sponsor’s request.  The sponsor wishes to remain the Non-Federal sponsor, but their data shows there is no need for the project for the foreseeable future.  SWL expects a push from the environmental community to deauthorize the project.

Russellville Slack Water Harbor

The recommended plan in the Project Report, dated May 2001, consisted of a slack water harbor on the left descending bank of the Arkansas River downstream of Dardanelle Dam in Pope County.  In the spring of 2004, the Corps was sued by environmental groups with the major complaint being an Environmental Impact Statement (EIS) should have been completed on the whole intermodal facility.  The Federal Highway Administration (FHWA), the lead agency for the intermodal facility’s EIS, prepared a Supplemental  Draft EIS (SDEIS) that was approved by FHWA on 29 July 2010.  The Corps has been a cooperating agency and will adopt this EIS for the harbor, but the Corps will prepare a separate Record of Decision.  The plans and specifications for the harbor were completed and put on hold in September 2006.    Corps Headquarters in Washington provided comments on the draft Project Partnership Agreement (PPA) package in July 2007, with guidance to update and resubmit for approval once the SDEIS for the intermodal facility is complete.  The Final EIS and ROD signed by FHWA are scheduled to be completed by December 30, 2010.

The total project cost of the harbor is estimated at $7.1 million, and the benefit-to-cost ratio is 1.3 to 1. The total federal share will be limited to the amount named, or $3.4 million.  The total non-federal share was estimated at $3.8 million.  The local sponsor is the River Valley Regional Inter-model Facility Authority.  The project is classified under the Continuing Authorities Program and is authorized under Section 107 of the River and Harbors Act of 1960, as amended.

Otter Creek and Tributary, Shannon Hills, AR - Section 205

Otter Creek and its Tributary continue to flood the city of Shannon Hills.  The City of Shannon Hills requested a small flood control study in September 2009.  Development outside the city has increased runoff into since Otter Creek was channelized in 1985.  Funds of $49,000 were provided for FY11 to resume the feasibility study that was terminated in 2004

Greenwood, AR, Section 205

The City of Greenwood, located approximately 15 miles Southeast of Ft. Smith, Arkansas, requested assistance to reduce flood damages by letter in May 2004.  Three major streams flood the city during heavy, short duration rain events that cause major streets to be blocked and homes to be evacuated.  The Milestone Report was completed in December 2005 and updated in July 2007.  Due to funding constraints, the city has asked to have the project put on hold.

Arkansas River Environmental Restoration, Section 1135

The Arkansas Game and Fish Commission requested the Little Rock District re-evaluate the potential for a Section 1135 to restore waterfowl habitat and fisheries habitat along the Arkansas River. The District will re-open the study with the $6,000 remaining funds.

Arkansas River Levees

Forty-two levees along the Arkansas River in Arkansas protect 753,180 acres of residential and farm land.  These levees have prevented more than $523 million in damages.  Most do not meet current design criteria and have deteriorated drainage structures or failing side slopes.  Many are past their 50-year economic life.  Section 110 of the Water Resources Development Act of 1990 authorizes rehabilitation and reconstruction to bring existing federal levees into compliance with current design standards.  The 1991 Arkansas River Basin, Arkansas and Oklahoma, Feasibility Report updated in 1995 determined that rehabilitation of 13 levee units in Arkansas would be economically justified.  Potential non-federal sponsors were identified, and a priority list was established to accomplish the work based on levee conditions.  Reconstruction of the levees could proceed if funds are received and the project cost shared with two non-federal sponsors at 35 percent.  Congress last added funds for this project in the amount of $99,000 in the FY05 Energy and Water appropriation to continue this effort.  Little Rock District conducted site inspections of Ft. Smith, Van Buren, and North Little Rock levees and has completed a report of findings.  The report recommended that plans and specifications be prepared for the Van Buren levee system and economics should be updated for all of the levee systems along the Arkansas River. Non-federal sponsors have been unable to cost share in the past.

Fourche Bayou Basin, Arkansas

Little Rock District and the city of Little Rock constructed a flood reduction project in Fourche Bayou Basin, which was the scene of repeated urban flooding and loss of life.  Project features included channel clearing and enlargement on segments of Grassy Flat, Rock and Fourche Creeks, as well as road and railroad bridge alterations and recreation features.  Construction is complete, and the project has been transferred to the city of Little Rock to operate and maintain.  The project authorization also included acquiring 1,750 acres of bottomlands for environmental preservation (and flood storage) with nature appreciation facilities.  A limited reevaluation report and supplemental EIS (cost - $520,000) was completed September 2008 and approved by SWD on 13 July 2009. The report will be the decision document to be used by the Assistant Secretary of the Army for Civil Works to determine whether to budget for the acquisition and nature facilities and approve the drafted project partnership agreement (PPA).  In FY 2009 $1,101,000 was appropriated to execute a PPA and initiate acquisition of the bottomlands.  The remaining project work has an estimated total cost of $8 million.

Arkansas River – 12-Foot Channel

The 445-mile long McClellan-Kerr Arkansas River Navigation System consists of 18 locks and dams and provides 9-foot depth inland navigation from the Mississippi River to Catoosa, Okla. This project would deepen the navigation channel to a minimum depth of 12 feet throughout the MKARNS.  The Environmental Impact Statement and feasibility study were completed in August 2005, and the Record of Decision was signed September 2005.  A $7 million (Operations & Maintenance appropriation) Congressional Add was received in Fiscal Year 05.  Of that, $5.5 million was carried over and used in FY06, FY07, FY08, and FY09 to implement planning, engineering, design and construction.  Work has included placing stone structures to improve self scour, continuation of design of upland dredge disposal sites and real estate efforts.  Other completed work includes raising training structures near navigation mile 42.7 to 43.05, four new structures at NM 44 through 44.6, dredging and construction of Least Tern Island at NM 348, detailed Hydraulics & Hydrology design for pools 2 and 7, sediment modeling for pools 2 through 13, and dredging of high point at NM 146.2, 4 stone structures near NM 146 along with required mitigation features.  A Project Management Plan was reviewed and approved by stakeholders and the Corps and has been implemented.  The project is not included in the FY09 or FY10 President’s Budget.  In FY10 $300,000 of remaining funds were used to complete ongoing deepening efforts at navigation mile 146.  All allocated funds are exhausted and no further work will be done until the District receives additional appropriations.

Little Rock Slack Water Harbor, Arkansas River, Section 204

The Little Rock Port Authority requested the Little Rock District to conduct an ecosystem restoration project in connection with dredging along the Arkansas River, in the vicinity of the Little Rock Slack Water Harbor.  The study area is on the right bank of the Arkansas River near navigation mile 111.5 on the east side of Little Rock, Ark.

The study will look at ways to provide protection, restoration, and creation of aquatic and wetland habitats in connection with the maintenance dredging along the Arkansas River of the Little Rock Slack Water Harbor project.  The study would be conducted under Section 204 of the Water Resources Development Act of 1992, as amended.  Funds in the amount of $200,000 were received in Sept 2008 to initiate the feasibility study.  Due to the high cost to provide all of the needed dredge material of 4,727,000 C.Y. at an estimated cost of $96,194,450, the recommendation in November 2009 was to terminate the study based on no economically feasible plan. 

Massey-Alexander Levee Rehab PL 84-99

Record rains occurred across much of northern, western, and portions of central Arkansas in March and April 2008.  As a result of these rains, damage occurred in three locations to the Massey-Alexander Levee.  The local levee sponsor, the Jackson County Levee District, requested assistance under PL 84-99 to repair damage to the levee.  A Project Information Report (PIR), dated August 2008, recommended excavating two damaged scour areas and backfilling with material and establishing turf and installing a toe drain.  Costs of these repairs were estimated at $260,000 and with annual project benefits of $690,000 results in a benefit to cost ratio of 35 to 1.  Funds in the amount of $260,000 were received in Sept 2008 to design and construct the repairs.  Plans & specs were completed in Jan 2009 and a contract successfully awarded in April 2009.  Construction was completed in July 2009 ahead of schedule and under budget.  Final quantities were  calculated, a letter was  sent to the local sponsor explaining O&M responsibilities, and the project was  financially closed out.

Prairie Creek, Russellville, AR (Section 205)

The City of Russellville, Arkansas has requested the Little Rock District to re-initiate the Section 205 study on Prairie Creek to investigate solutions for flood risk management issues to local businesses, public facilities, and other interests.  The study would be conducted under Section 205 of the Flood Control Act of 1948, as amended.  A Feasibility Milestone Report was completed in December 2004; however, the city had requested termination of the study in 2007 due to budget restrictions.  A CAP Feasibility Report could be completed in 18 months pending receipt of funds.

The first $100K to initiate a feasibility study is full Federal cost; any costs beyond the initial $100K require a Feasibility Cost Sharing Agreement and would be cost shared 50/50. 

Red River Basin Studies

Southwest Arkansas Study

Discussions are under way to negotiate and sign the FCSA agreement in the spring of 2011 on the $2 million watershed study.  The 1,152 square mile study area includes the Lower Little River Watershed located in portions of Southwest Arkansas and Southeast Oklahoma.  Over time, land use has changed dramatically in the watershed creating water quality problems, destroying aquatic habitat throughout the basin, threatening pristine bird habitat, increasing invasive species vegetation, increasing flooding, and jeopardizing the main source of drinking water for the region.  A watershed management plan for this basin will provide a science-based, holistic approach for managing constituents (e.g., sediments, nitrogen, and phosphorus) that are transported from the landscape to degrade fragile ecosystems that include habitat for the endangered Ouachita Rock pocketbook mussel and other imperiled species.  The study will employ a GIS-based watershed model of the basin supporting simulation of hydrologic, geomorphic, and biological processes to include a historic perspective and conditions most recently influenced through human influence. Based on this analysis, the study team will be able to develop a comprehensive watershed plan in concert with the multiple agencies with a wide range of authorities for best management practices relevant to watershed solutions.   While initially focused on ecosystem restoration in the basin, other water resource opportunities such as flood risk management, navigation, recreation, and water supply will be identified through the holistic approach and multi-agency involvement.

A Reconnaissance study of the area including four counties in Southwest Arkansas in the Red River and Little River basins was completed in February 2004.  The Arkansas Natural Resources Commission has agreed to be the lead cost sharing partner.  They will work with the other partners, the Arkansas Game and Fish Commission and Southwest Arkansas Water to maintain the funds for the study. 

Grassy Lake, Millwood Lake, AR, Section 1135 

The feasibility study of Grassy Lake, a pristine wetland just downstream of Millwood Dam along Yellow Creek in southwest Arkansas, is ongoing under Section 1135 of the Water Resources Development Act of 1986, as amended.  Through 2010, a total of $800, 000 has been allocated for the study to obtain surveys, determine existing conditions, and develop a water management plan.    Hydraulics and Hydrology analysis considered with the 2009 flooding event determined that the construction of the Red River Basin dams has reduced beneficial flooding to the wetlands and has contributed to their environmental degradation.  This area is owned by hunting clubs that do not allow general public access and may not form a consensus on a project.  The state of Arkansas acts as the sponsor with Arkansas Natural Resources Commission acting as the lead agency.  The January 2007 revision in Corps guidance directs 100 percent federal financing of the study phase with cost sharing of the study phase to be as a project cost when the project partnership agreement is signed.

Little River County, Ogden Levee and Walnut Bayou Levees, AR 

The project includes the reconstruction of the Ogden Levee along the Red River in Little River County.  This reconstruction project is to be designed to the same specifications as the opposite bank levees in Bowie County, Texas, and Miller County, Arkansas.  No project funds were appropriated in the FY10.  After the May 1990 flood, Congress appropriated funds for a reconnaissance study.  The study (completed November 1991) found that flood control levees along the Red River in Little River County were justified.  Later, it was found that modification of the Ogden and Walnut Bayou levees was authorized by the Flood Control Act of 1946.  Funds were appropriated for a cost-shared feasibility study.  However, the project sponsor, the Arkansas Soil and Water Conservation Commission, requested that the Corps bypass the feasibility study and go directly to cost shared Planning, Engineering, and Design.  Little River County does not participate in the Federal Flood Insurance Program, which is a requirement for a Corps Project. Funds of $100,000 are needed for each levee for a recon study to develop project management plans for each project.

White River Basin Studies

Springfield, Missouri

The study area is along Jordan Creek within the city limits of Springfield, Missouri.  The study is addressing flooding problems and environmental restoration with allied purposes of recreation and water quality.  The feasibility cost sharing agreement was signed on 12 May 2004 initiating the $3 million 50-50 cost shared study with the city of Springfield.  The city is in the process of creating an environmental beltway downtown on Jordan Creek of which portions of the creek flows through a covered conduit in the city center.  During the flood in July 2000, $1.85 million in flood damages occurred interrupting traffic on main city thoroughfares and rail lines.  The most recent flooding occurred during the spring of 2009 with reported water depths of 3-5 feet at a major intersection.  The flood control activities would include non-structural activities such as relocation and structural measures such as detention ponds, open channels, and in congested areas underground culverts.  Ecosystem measures to consider include constructed wetlands, water quality sediment basins, and riparian enlargement.  The study is scheduled for completion in June 2013.

Archey Fork Creek, Section 205

Archey Fork Creek is located in Clinton, Arkansas, 62 miles northwest of Little Rock, Arkansas.  The City of Clinton, sponsor, submitted a letter dated 2 May 2002 to request assistance with their flooding and stream bank erosion problems along Archey Fork Creek.  The Feasibility Cost Sharing Agreement has been drafted, and the Project Management Plan has been signed by the city, although the city is still reluctant to move forward with the project because of the cost.  The engineering portion of the study is complex because three rivers come together near the source of the flood.  In 2007, Little Rock District received money to continue the study after a long period with no funds.  Because of the time elapsed from the original report, the milestone report was updated and approved.  The city is reviewing funding alternatives, so the project is on hold.

Batesville Wastewater Treatment Plant Stream bank Stabilization, Section 14 

Batesville Water Utilities requested the Little Rock District to conduct a streambank study on the North bank of the White River (approximately river mile 299.5 to river mile 298.5).  A construction contract was awarded on 11 March 2008.  The NTP was issued on 31 July 2008.  The project experienced some delay due to the high water events on the White River system during the months of March and April 2008, but the project was physically completed in April 2009.  Batesville Water Utilities is the non-Federal sponsor.  The project is classified under the Continuing Authorities Program and is authorized under Section 14 of the 1946 Flood Control Act (Public Law 80-858), as amended.  An O&M Manual for the project is currently being completed and project closeout is scheduled for FY11.

Shirley Bay-Rainey Brake Wildlife Management Area (WMA), Section 206

The WMA is a 10,500-acre tract set between the Strawberry and Black Rivers in Lawrence County, Arkansas.  The Arkansas Game and Fish Commission requested an ecosystem restoration study to address the impacts to wintering waterfowl associated with riverbank erosion and water level management within a green tree reservoir.  Bank erosion is threatening a portion of the levee system.  The Preliminary Restoration Plan (PRP) was sent to SWD in Dec. 2004.  The study was on hold due to lack of funding since FY05; funding was received in FY09 to re-start the feasibility phase.  .  A site visit to determine existing site conditions since last site visit was conducted in June of 2003.  Site visit also included SWL H&H and Civil engineers to assess potential alternatives.  Resource inventory was completed in September 10.  Cultural resources inventory is ongoing.  H&H report and preliminary cost estimate completed.  Feasibility portion of study is projected to be complete in summer of 2011. 

White River, Augusta, Arkansas, Section 14

Augusta is located 70 miles northeast of Little Rock, Arkansas.  The City of Augusta is the sponsor, and in 2007, requested assistance with a bank erosion problem adjacent to the city.  The White River adjacent to Augusta is eroding endangering a sewer main, public roads and a flood protection levee in the community.  The erosion is accelerated when the banks of the creek is exposed to high water events.  If the bank should fail, the contents of the sewer main will drain directly into the White River. The possibility also exists for prolonged damages to several homes and businesses in the community by continued erosion of the riverbank.  Alternatives might include rip-rap bank stabilization, relocate existing sewer main, relocate roads, relocation of buildings and businesses, and homes in the flood plain.  The project benefits would include flood reduction damages and bank stabilization.

Funding to continue feasibility study was received in August of 2010 and we conducted a site visit with local sponsor in September 2010.  SWL H&H engineer performed assessment of study area for existing site conditions and possible alternatives for erosion of the streambank.  SWL archaeologist assessed area for two potential historical sites.  H&H report scheduled to be completed in October 2010 with the preliminary cost estimate scheduled for November.  Feasibility phase of study scheduled for completion in late 2011.

Old Grand Glaise, Arkansas, Section 14                                                                            

Old Grand Glaise is located 78 miles northeast of Little Rock, Arkansas.  The County Judge, Jackson County is the sponsor, and in 2002, requested Little Rock District conduct an emergency stream bank study on the west bank of the White River.  A large amount of bank erosion is occurring along Jackson County road no. 4 at the Old Grand Glaise community.  The riverbank is eroding endangering access to a local business and several homes in the community.  The possibility exists for prolonged damages to several homes in the community by continued erosion of the riverbank.  Access to the community is limited by periodic flooding of the western portion of Jackson County road no. 4. 

An Eligibility Determination report was completed in 2003 along with some preliminary estimates and alternatives.  The project was suspended in 2004 at the request of the local sponsor due to lack funding.  In 2009, the County of Jackson and the Arkansas Department of Emergency Management requested to resume study and indicated the project is a high priority.  Alternatives might include bank grading using existing bank material, bendway weirs, and longitudinal stone toe protection.  Additionally, recreational opportunities and wildlife habitat areas could be improved along the river corridor.  The project benefits would include flood reduction damages and bank stabilization. 

The team completed a site assessment to determine existing site conditions and development of possible alternatives this FY.  In September 2010, the team received initial H&H report and we are awaiting preliminary cost estimate from cost engineering.  Environmental completed a mussel survey.  The local sponsor requested a meeting when the preliminary costs of construction are completed.  The sponsor is concerned that if the costs are too high, they will not be able to participate.  Depending upon the sponsors capabilities, the feasibility phase is scheduled for completed in late summer of 2011.

Hwy 58 at Guion, AR Section 14

The Arkansas Highway and Transportation Department requested the Little Rock District to conduct a stream bank study on the right descending bank of the Highway 58 bridge located near Guion, Arkansas.  The AHTD is concerned that the bridge abutment would be compromised if erosion continues.  The high water events of March and April 2008 further intensified the deterioration of the stream bank at this site.  The AHTD is the potential Non-Federal sponsor.  Funds in the amount of $25,000 were received in September 2008 to initiate the feasibility phase.  A Milestone Report, dated February 2009, was prepared and found an economically justified bank stabilization project with a benefit-to-cost ratio of 4.94 to 1.  The  Milestone Report recommendation included bank grading using existing bank material, bendway weirs, and longitudinal stone toe protection.  The project was not funded in FY09 or FY10.  Approximately $75,000 was received at the end of FY10 to complete the feasibility phase.   Approximately $100,000 in Design & Implementation funds received in FY10 could be used to sign a PPA and initiate construction.  Approximately $508,000 in federal funds will be needed in FY11 to complete construction.  The project is classified under the Continuing Authorities Program and is authorized under Section 14 of the 1946 Flood Control Act (Public Law 80-858), as amended. 

Southside Water, White River, Batesville, AR Section 14

Southside Public Water Authority requested the Little Rock District to conduct a stream bank study on the South bank of the White River, in the vicinity of Batesville, Arkansas.  The public water authority maintains a 16” ductile iron raw water line extending parallel to the river for approximately 1500’ to 2000’ carrying water from the river intake facility to the water treatment plant.    The study is being conducted under the authority of Section 14 of the Flood Control Act of 1946, as amended.  The Southside Public Water Authority is the Non-Federal sponsor.  Funds in the amount of $35,000 were received in Sept 2008 to initiate the feasibility phase.  The Milestone Report evaluated four bank stabilization alternatives and found the benefit-to-cost ratio of the no action alternative (relocation alternative) verses the least cost bank stabilization alternative was 0.56 to 1.  However, high water events in the spring of 2009 intensified erosion issues in the area.  If the bank is not stabilized, there is potential they could lose their water treatment plant.   So the Southside Water Authority requested the Corps restart the study based on changed site conditions.  Funds in the amount of $49,000 were reprogrammed in September 2010 to restart the study. 

White River Comprehensive Study

The Memphis and Little Rock districts are conducting a general investigations comprehensive study of the White River Basin in Arkansas and Missouri.  The reconnaissance phase study report, known as the 905(b) report, was approved in January 2002 and a feasibility cost sharing agreement was signed in May 2002.  The Water Resources Development Act of 2007 changed the cost sharing requirements of the study cost from 50% to 25%.  Current activities include working to resolve cost sharing issues associated with this change.  A management plan is being updated and negotiated in conjunction with non-federal cost sharing sponsors.   Project sponsors include: Arkansas Game & Fish Commission, Arkansas Natural Heritage Commission, Arkansas Natural Resources Commission, Arkansas Waterways Commission, Missouri Department of Conservation, Missouri Department of Natural Resources, and the Nature Conservancy of Arkansas.  The study will identify the critical resources, water-related problems and needs, and potential solutions to these problems.

Bull Shoals Nursery Pond, Section 1135

Diamond City, Arkansas, and the Arkansas Game and Fish Commission requested that Little Rock District investigate the feasibility of constructing a nursery pond within the flood pool of Bull Shoals Lake.  The project was completed during the summer of 2006.  In September 2007, a leak in the outlet works was discovered; however, the AGFC is still able to use the nursery pond.  A contract to repair the leak was completed in February 2010.  AGFC is the sponsor and is responsible for 25 percent of costs.  The project is classified under the Continuing Authorities Program and is authorized under Section 1135(b) of the Water Resources Development Act of 1986.  An O&M Manual for the project is currently being completed and project closeout is scheduled for FY11.

White River Minimum Flows, AR/MO

The project was originally authorized by section 374 of WRDA 99 and section 304 of WRDA 00.  The original authorization modified the operation of the White River Lakes to include storage for the tailwater trout fisheries if the ASA(CW) determines the work was technically sound, environmentally acceptable, and economically justified.  A reallocation study was completed in FY04, but did not recommend a project for construction.  Section 132 of the FY 2006 Energy and Water Resources Development Act (P.L. 109-103) authorizes the implementation of plans BS-3 at Bull Shoals and NF-7 at Norfork lakes at full Federal expense in accordance with section 906(e) of WRDA 86.  Section 132 also repealed the previous project authorities in WRDA 99 and WRDA 00, resulting in a new project.  ASA(CW) signed the Record of Decision, a contract has been awarded to construct the Siphon and Bulkhead at Norfolk Lake and the Arkansas Game and Fish Commission has awarded contracts to begin lakeside facility modifications. Legislation was passed in October 2009 to authorize the Southwestern Power Administration a special account to capture funds to compensate Empire Electric for hydropower capacity losses. The full amount of compensation was paid in September 2010. The Arkansas Game and Fish Commission and USACE are now developing the Project Partnership Agreement for implementation at Bull Shoals Lake. January 2012 is t he scheduled date for completion of work at Norfork Lake and start of capturing storage. 

Other Studies

Clearwater Dam Safety/Major Rehabilitation

The Little Rock District is implementing a long-term solution to seepage-related dam safety issues at Clearwater Dam, while continuing seismic and hydrologic evaluations.  Clearwater Dam is not considered to be at risk of imminent failure, however the issues are serious and require expeditious and deliberate action.  The purpose is to assure public safety and maintain the authorized project purpose and benefits.  The project is the result of a major rehabilitation study completed in July 2004 and approved in August 2004, consisting of a concrete cutoff wall extending the full length of the dam.  The current estimated project cost is $248,526,000, with a construction time of approximately nine years.  The Phase I construction contract was awarded in January 2006, consisting of an investigative drilling and grouting program to provide critical data for the Phase II construction contract, the cutoff wall.  Early in the Phase I construction, however, it was discovered that the rock was extremely fractured, requiring a more intensive grouting program in order to facilitate construction of the cutoff wall.  The drilling and grouting will serve as a critical piece of the seepage remediation effort, extending substantially deeper than the cutoff wall.  Phase I is expected to be completed in December 2009.  Phase II construction is anticipated to begin in 2009.  Clearwater Dam, in Southeast Missouri on the Black River is an earthen dam 4,225 feet long and 154 feet high.  The project was built for flood control and recreation.  The seepage problem at Clearwater Dam is not new.  Reservoir related surface seepage was detected and became pronounced as early as 1950.  Several modifications have been made to control seepage, including changes to the operation and management of the lake levels and construction of a seepage berm in 1989.   However, seepage problems have continued that may be affecting the long-term structural integrity of the dam.   In January 2003, a sinkhole developed in the upstream face of the dam, caused by seepage.  Several investigations provided information about the location and depth of the sinkhole, but were not conclusive as to the cause.  However, the most prevalent technical explanation is subsurface seepage through the bedrock.  A $3.6 million foundation drilling and grouting program was initiated in FY 2004 and completed in FY 2005 in the immediate area of the sinkhole.  This drilling and grouting program has provided information that indicates the core of the dam is intact, but there are fractures in the underlying rock, including a large cavity that was discovered and filled as part of the contract.  Due to the proximity of the dam to the New Madrid Fault, seismic stability is a concern.  The seismic study has been on-going using the process described in Corps policy.  Results from initial seismic evaluations and analysis are being considered in the design for the seepage project.  Initial seismic evaluations indicate that the dam passes Corps criteria for the Operating Basis Earthquake, but further study is needed to determine if it passes the Maximum Credible Earthquake criteria.  Though considered of lesser consequence, hydrologic capacity and erodibility of the emergency spillway continue to be studied as resources permit.

Clearwater Lake Conservation Pool

A 1994 reconnaissance report studied raising the Clearwater conservation pool elevation to restore downstream-lost fish and wildlife habitat.  The report found that the operation of Clearwater caused habitat degradation by enabling former bottomland hardwood stands to be cleared and converted to farmland.  Corps headquarters review questioned that, as well as, the relationship between types of habitats to be created (fishery and waterfowl) versus habitats lost (bottomland hardwood wetlands), and whether reservoir modifications are the most economical means of restoring habitat.  Initially, the state of Missouri declined to cost share in a feasibility study because of concerns over project cost, the cost sharing policy that includes the costs of allocated storage, and a slight increase in downstream flooding.  The project cost was $40 million including $30 million for seepage control (work to solve this problem is underway) and $2.75 million for relocating recreational facilities (This work was done.) to higher elevations.   Feasibility Cost Sharing Agreement negotiations have not been resumed with Missouri as no funds were provided in FY 2008.  The policy issues would have to be resolved as priority is given to restoration where a Corps project contributed to the degradation of the ecosystem or where modifying Corps projects is the most cost-effective means of restoring the ecological resources.

Henry Grey Hurricane Lake Wildlife Management Area, AR, PAS

The Corps is participating with the Arkansas Game and Fish Commission (AGFC) to evaluate the hydrology and hydraulics and maximize management for waterfowl habitat in the Hurricane Lake Wildlife Management Area in White County, Arkansas.  The wildlife management area contains 17,000 acres of bottomland hardwood forest.  The confluence of the Little Red and White Rivers is located within its boundaries.  There are several oxbow lakes ranging from 5 – 50 acres.  By using a series of gated structures, the management area can be flooded to provide habitat for migrating waterfowl.  Floodgates are normally closed from October to March. 

Phase 2 of the $50,000 Planning Assistance to States study is being cost-shared equally between the Corps and the AGFC.  The PAS agreement was signed in January 2006.  The project received $50,000 in Feasibility Funds FY2008.  In FY2008 the project began the feasibility process.  H&H has funding for hydrology and hydraulic evaluations.  As a result of the Black River lawsuit, we will request a hold harmless agreement from the AGFC before proceeding with the study and H&H evaluations. Due to land issues in the surrounding area, the sponsor has requested termination of study. 

Greene County, Missouri Groundwater Study (Planning Assistance to States)

Greene County Resource Management Department, Greene County, Missouri requested the Little Rock District to conduct a ground water study to investigate the reliability of the Ozark Aquifer in order meet the future needs of the county and, if necessary, identify other water supply sources and facilities to meet that need.  The project is authorized under Section 22, Water Resource Development Act of 1974, as amended.  The cost of the study would is shared 50/50 between the Corps and Greene County.  An agreement between the Corps and Greene County was signed in December 2006.  The study is scheduled to continue through March 2010 with an estimated cost of $500,000, $250,000 Federal and $250,000 Non-Federal.  The USGS completed a draft scientific investigations report (SIR) in July 2010 and the Corps completed a review of the report in August 2010. 

Stone/Taney Counties Groundwater Study (Planning Assistance to States)

The Missouri Department of Natural Resources (MDNR) requested the Little Rock District to conduct a ground water study to investigate water use trends in Stone and Taney Counties, particularly in parts of the counties where development of all types is placing ever-increasing demands on groundwater resources.  Current activities include preparing, reviewing, and publishing a finding report.  The cost of the study is cost shared 50/50 between the Corps and MDNR. The PAS agreement between the Corps, MDNR, and Missouri State University was signed in January 2007.  The project is authorized under Section 22, Water Resource Development Act of 1974, as amended.  MDNR completed a draft report on their findings in September 2010 and the draft report is currently under review with the Corps.

Norfork Lake Water Supply

The Mountain Home water supply report on Norfork Lake was sent out for public review August 2007.  This reallocation is for 3,158 acre-feet, the report is being revised to include a Baxter County Water Works Board request for 5.8 mgd from Lake Norfork.  . 

Beaver Lake, Arkansas, Water Supply Reallocation Study

Beaver Dam is on the White River approximately 18 miles northeast of Rogers, AR.  The lake is one of four multiple-purpose projects constructed in the upper White River Basin for flood control and power generation.  Current storage capacity on the lake is 287,302 acre-feet of flood control storage and 937,398 acre-feet of conservation storage for a total of 1,224,700 acre-feet.  The Water Supply Act of 1958 authorized water supply for the lake and the Chief of Engineers has discretion to reallocate if there is no significant impact to other authorized project purposes; however, any allocation for water supply must be reallocated from either the conservation or flood control pools.   Currently, there are 6 water supply agreements at Beaver Lake. 

There is a request by Carroll/Boone for an additional 6 million gallons a day,  the Benton/Washington County Public Water Authority requested 8 MGD at Beaver Lake, and Madison County Regional Water District has requested 8 million gallons per day. The draft report will be completed in FY10 and sent out for public review.

Bull Shoals Water Supply Reallocation Study

In October 2009, it was announced OMRPWA will receive $56 million in grant and loan funding from United States Department of Agriculture through the American Recovery and Reinvestment Act of 2009, to construct an intake structure and treatment plan adjacent to Bull Shoals Lake.  However, these funds must be obligated by September 2010; therefore, OMRPWA must first have a water storage agreement with the Corps by August 2010.  Bull Shoals Dam is on the Whiter River seven miles north of Cotter, AR.  The lake is one of five multiple-purpose projects constructed in the upper White River Basin for flood control and power generation (Beaver, Table Rock, Bull Shoals, Norfork, and Greers Ferry).  The Ozark Mountain Regional Public Water Authority (OMRPWA) is a coalition of 20 water systems in Arkansas that was formed in 2004 to pursue a future water supply for the north central Arkansas area. Currently the water authority serves approximately 22,000 people through shallow wells, deep wells, and springs.  These water sources are not dependable and have elevated levels of radium, fluoride, iron, manganese, and hydrogen sulfide. The Arkansas Department of Health has stated the well water has excessive and dangerous levels of contaminants, and they have declared the need for an alternative water supply for these communities as their top priority.  The Environmental Protection Agency has certified that many of these water sources are not safe for human consumption.  In February 2007, OMRPWA requested the Little Rock District reallocate storage sufficient to supply 6 MGD from Bull Shoals Lake for their future water supply needs. Only one water provider currently utilizes Bull Shoals Lake as a municipal water source.  The Marion County Regional Water District (MCRWD) has a water supply allocation of 880 acre-feet from Bull Shoals Lake intended to provide a 1 MGD yield.  Their demands have steadily increased at an average rate of 3.55% since 1990.  On October 6, 2009, MCRWD requested the Little Rock District reallocate storage sufficient to supply an additional 1 MGD (for a total yield of 2 MGD) to allow for additional growth.  Because of their need for additional water, the additional 1 MGD request for MCRWD was included in this study to make a total request for storage to yield 7 MGD.   The report concluded the reallocation of 11,886.541 acre-feet, consisting of 10,188.463 acre-feet for Ozark Mountain Regional Public Water Authority and 1,698.007 acre-feet for Marion County Regional Water District at Bull Shoals Lake from the conservation pool.   The cost for reallocating storage is $1,669,990 to Ozark Mountain Regional Public Water Authority for 6 million gallons per day and $280,861 to Marion County Regional Water District for 1 million gallons per day.  The expedited final reallocation report with the environmental assessment was approved by ASA(W) on August 9, 2010.  The FONSI was signed by Little Rock District’s Colonel on August 17, 2010.   The OMRPWA water supply agreement was executed on August 27, 2010, and the MCRWD water supply agreement was executed on September 8, 2010.

Mid Arkansas Water Alliance Water Reallocation Study

The Mid Arkansas Water Alliance requested 15 mgd and 20 mgd from Greers Ferry Lake and Lake Ouachita, respectively.  Due to DSAC II classification at Blakely Mtn Dam, Lake Ouachita request was changed to a conservation pool reallocation with Vicksburg District preparing the report.  ASA(CW)  approved the Greers Ferry reallocation in April 2010 and the agreement was signed with MAWA on May 5, 2010.  This reallocation resulted from a 2002 Planning Assistance to States Study for Central Arkansas Water. It is projected to serve the water supply needs for the north central Arkansas region for the next 25 years.

Beaver Lake Trout Production Facility

The Beaver Dam trout production facility was authorized by Section 105 of Public Law 94-587, dated October 22, 1976.  The facility is to be located just below Beaver Dam in Carroll County to produce annually 150,000 pounds of trout for environmental restoration.   The project is not eligible for the president’s budget.   Additional funds of $600,000 could be used to complete the design, plans, and specifications for the project. In 2001, the ASA (CW) stated that the legislative intent for the trout production facility, including a source of water supply, would be at Federal expense up to $6 million.  Section 132, EWDA 2006, directed that losses to hydropower shall be offset by a reduction in Federal hydropower costs as determined by Southwestern Power Administration based on the present value of the estimated replacement cost of the energy and capacity when the hatchery operation begins.  On November 27, 2007, ASA (CW) made a determination that the 21,972 acre-feet of conservation pool storage and its OMRR&R for the trout production facility is to be at no cost to the state of Arkansas.  HQ revised its report guidance in Jan 2010 and directed that the water supply storage reallocation report for the trout facilities be revised to include supplemental information based on the 2007 guidance.

Personnel Changes

• Louise Roberts was hired as the new Administrative Assistant in February 2010.
• Chad Dulaney was hired in February 2010 as a new Study Manager.
• Steve Nolen, SWT, came to SWL for a 5-month developmental assignment as the Chief of Planning Branch (April through August 2010).
• Dana Coburn became the Chief of Environmental Branch in May 2010.

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