Nationwide Planning IDIQ in Support of Watershed and Rehabilitation

LOCATION:  Nationwide   |   OWNER:  Natural Resources Conservation Service (NRCS)
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McMillen Jacobs has completed over 50 assignments for NRCS and continues to take on additional work. Scope of work has included the following tasks: 

  • NEPA environmental assessment (EA) development (public involvement, landowner negotiations, environmental analysis and the documentation of alternative development, coordination of various counties, and other consulting firms)
  • EWP program damage survey reports (DSRs) (visits to over 600 sites, documentation of damage, development of potential solutions, cultural resources investigations, and creation of collective reports)
  • Development of a national engineering handbook manual for seismic evaluation for NRCS
  • Development and rehab of emergency watershed protection (EWP) website
  • Engineering and design assistance with the creation of Utah National Engineering Manual supplements, technical notes, standard drawings and details, and WaterCAD and Hammer Software consulting
  • Dam assessments
  • Biological assessments
  • Cultural resources analysis
  • Inundation studies
  • Concept and final design
  • Construction assistance

Green Lakes Dam Assessment, Utah. McMillen Jacobs performed rehabilitation assessments for three flood-control debris basins located near Cedar City in Iron County, Utah. Assessment included thorough review of new data on the natural environment in the project area, sustainability of materials, and the seismic stresses placed on the dams.

Dam Rehabilitation Assessments, Utah. McMillen Jacobs is currently performing rehabilitation assessments for nine dams throughout Utah, including: 

  • Zwhalen Wash
  • Diversion Hollow
  • Indian Hollow
  • Bigelow Debris Basin
  • Miller Debris Basin
  • Mt. Pleasant Upper
  • Mt. Pleasant Lower
  • Big Wash Debris Basin
  • Red Hills Debris Basin

Assessments include the condition of the existing structures according to the requirements of NRCS and the Utah Dam Safety office. Each of these assessments includes review of current operations and maintenance and the original design criteria, hydrologic analysis of the current drainage area and adequacy of the structure, and a hazard classification analysis. Deliverables to NRCS include a dam inspection checklist; proposed modifications or alternatives, including structural repairs, downstream enhancements, or structure removal, along with a cost analysis, and priority ranking risk and population at risk (PAR).

Emergency Watershed Protection Program Damage Survey Reports, Utah. McMillen Jacobs has led the development of the damage survey reports (DSRs) in five northern Utah counties for damages that occurred during the 2011 flood events. The DSRs document the damage at each site, develop and illustrate alternatives, and document the impacts to the human and natural resources associated with each damages site. The McMillen Jacobs team visited more than 600 sites in four counties, documented damage at more than 400 sites, developed alternatives, and performed a cultural resources investigation and report. By offering a holistic approach that involves not only repairs to the damaged structures but solutions for modifying them to provide protection from future flood events, we expect to reduce the future need for levee repairs and impacts to the natural resources of the riparian corridor. DSRs were completed for the counties listed.

  • Cache County. Thirteen DSRs addressed debris removal, bank protection, structure protection, flood plain easements and sediment and debris basins.
  • Davis County. Nine DSRs addressed debris removal on nine separate creeks across Davis County.
  • Salt Lake County. Seven DSRs included sites on Big Cottonwood Creek, Little Cottonwood Creek, Emigration Creek and Mill Creek in Salt Lake County, Utah.
  • Weber County. Seven DSRs addressed debris removal, bank protection, structure protection, and sediment and debris basins.
  • Duchesne County. Fifteen DSRs addressed debris removal, bank protection, structure protection, and sediment and debris basins. Contract amount included biological mitigation.

Various Biological Assessment and Botany Surveys, Utah. McMillen Jacobs prepared a biological assessment and botany surveys with assistance and management of site visits and a cultural resource inventory.

  • EWP support, Duchesne County.
  • Ute ladies tresses support.

Jewel Brook No. 1 Dam Assessment, Ludlow, Vermont. McMillen Jacobs is performing a dam assessment investigation, hydrologic analysis, hazard classification evaluation, and proposed alternatives.

Cedar Creek Holding Dam Assessment, Idaho. McMillen Jacobs is performing a dam assessment investigation, hydrologic analysis, hazard classification evaluation, and proposed alternatives.

Holt Canyon Flooding Reduction Design, Utah. McMillen Jacobs provided final design of a NRCS debris basin disposal project. Iron and Washington counties experienced state highway damage as a result of a very high rainfall event in the watershed above the project site. The stream is an ephemeral wash that experiences flash floods that transport large amounts of sediment and water downstream. Proposed flood reduction measures include creating sediment retention basins, flood dispersal structures, and bank stabilization. McMillen Jacobs worked with Iron and Washington counties, NRCS, local sponsors, and landowners to develop alternatives to address the flooding problem. Our team analyzed debris basin locations, instream structures and a diversion channel. Permitting and available funds led to selection of two small on stream debris basins, nine rock drop structures and one off-channel stormwater pond. McMillen Jacobs also provided construction assistance services and addressed construction issues. The $1 million project was completed in approximately 45 calendar days.

Holt Canyon Design and Construction Assistance, Washington County, Utah. McMillen Jacobs provided design assistance during construction, including bi-weekly visits to the site and report reviews. McMillen Jacobs addressed design changes and assisted in the resolution of needed design changes. Our team also provided stamped as-built drawings to record any and all adjustments made during construction.

Enoch City Emergency Watershed Protection (EWP) Design, Utah. This NRCS-funded storm water disposal project created an underground storm water pipeline to reduce flood damage. Enoch experienced significant damage to over 100 homes as a result of a very high rainfall event in the watershed above the city. McMillen Jacobs worked with Enoch and NRCS to develop alternatives to address the flooding problem. Our team analyzed seven debris basin locations and three stormwater disposal pipelines. Permitting and available funds led to selection of one storm water disposal pipeline. McMillen Jacobs also provided construction management services, led weekly meetings, and assisted the city with construction issues arising from utility relocation. McMillen Jacobs performed the preliminary design, final design, and development of the construction plans, specs, and estimates. Earlier, under a separate task order, McMillen Jacobs provided biological assistance on this project.

Preliminary and Final Design/Design Assistance, Shem Dam Rehabilitation, Utah. McMillen Jacobs provided environmental assessments for this project under a previous contract. Under this additional task order, our team developed preliminary and final design services. Responsibilities included design assistance during construction, bi-weekly visits to the site, and report reviews. Our team addressed design changes and assisted in the resolution of needed design changes. Upon completion of construction, we provided stamped as-built drawings to record any adjustments made during construction.

Millard County EWP Phase Two Debris Basins Design Review/ Huntington Canyon North Debris Basin Design Independent Review, Utah. McMillen Jacobs provided final design review of three NRCS-funded debris basin plans, specifications, and design reports. NRCS requires an external design review of projects with a larger drainage area, embankment height, or complexity. The design review may be completed by the NRCS Technical Center or by an architectural engineering firm. A local engineering team completed the design. McMillen Jacobs reviewed the plans, provided comments, and guided the engineering team through the design and documentation requirements.

Design Engineering and Assistance, Utah. McMillen Jacobs is performing engineering and design assistance for the Utah National Engineering Manual supplements, Utah engineering technical notes, Utah standard drawings and details, and WaterCAD and Hammer Software consulting.

Green River Diversion EIS and Concept Design, Emery and Grand Counties, Utah. This diversion structure on the Green River in Emery and Grand counties, Utah, is approximately 90 years old and was damaged during several flood events between 2010 and 2011. Repairs were needed to stabilize it during future flood events and protect three critical canal systems that are fed from the diversion. Installation of fish passage upstream and downstream was required to promote migration of Endangered Species Act (ESA)-listed fish species. McMillen Jacobs led the NEPA environmental impact statement (EIS) that addressed and analyzed environmental impacts anticipated from the project — especially significant impacts to cultural resources. McMillen Jacobs prepared the concept design of alternatives.

Complete Development of Supplemental Watershed Plans, Environmental Assessments (EA), and Concept Design at Multiple Dam Locations. NRCS has initiated the preparation of several plan environmental assessments (plan EAs) for the proposed rehabilitation of dams in Utah counties (Washington, Utah, and Sevier). In accordance with the rehabilitation provisions of NRCS’ Small Watershed Program, the dams are eligible for rehabilitation because of their high hazard class and to meet current dam safety and engineering performance criteria. The dams were planned and built for flood control and sediment retention. McMillen Jacobs is the project lead, with assistance from the NRCS and the project sponsor. Extensive BLM coordination has been required because some projects are located on BLM-managed property. McMillen Jacobs is also preparing the concept design of alternatives for each project that will be analyzed in the plan EA, which will meet NRCS regulations.

  • Warner Draw Dam rehabilitation
  • Stucki Dam rehabilitation
  • Battle Creek Dam rehabilitation
  • Grove Creek Dam rehabilitation
  • Dry Creek Dam rehabilitation
  • Gypsum Wash Dam rehabilitation
  • Ivins Dams 1-6 rehabilitation
  • Sand Hollow Dam
  • Santaquin Debris Basin
  • Frog Hollow Dam
  • Glenwood Debris Basin rehabilitation

Virgin River Biological Assessment at Five Locations, Washington County. McMillen Jacobs provided potential biological impact analysis of Virgin River bank erosion, which included actions to accommodate staging areas, access roads, borrow sites, disposal sites, EWP project rehabilitation efforts, and the long-term operation of the proposed alternative. The endangered species, along with associated designated critical habitat found in the project areas, included the Virgin River chub (Gila seminuda), the woundfin (Plagopterus argentissimus), and the southwest willow flycatcher (Empidonax traillii extimus).

Biological Assistance, Enoch, Utah. McMillen Jacobs assisted NRCS in the completion of a biological assessment (BA) for the Enoch City EWP project in Iron County, Utah. This BA was prepared in compliance with section seven of the Endangered Species Act to address potential project-related impacts on USFWS-listed fish, wildlife, and plant species designated as threatened, endangered, proposed, or candidates and their associated critical habitats. Later, under a separate task order, McMillen Jacobs provided the design for this storm water pipeline project.

McMillen Jacobs has performed numerous environmental assessments, concept designs, and damage survey reports for NRCS supported with public involvement, landowner negotiations, environmental analysis and documentation.

Shem Dam Rehabilitation EA, Washington County, Utah. Through financial assistance from the NRCS, is proposing to rehabilitate Shem Dam on the Santa Clara River in Washington County, Utah. Shem Dam is also located on tribal land (Shivwitz Band of Paiutes). The project includes rehabilitating the structure to stabilize it and upstream sediment during future flood events. This project will be funded under the NRCS Emergency Watershed Protection Program and required an EA before Washington County can receive funds to construct the project. McMillen Jacobs prepared a NEPA EA for the NRCS that addressed and analyzed environmental impacts from the project. The EA process included public involvement, landowner negotiations, public meetings, environmental analysis and the documentation of alternative development. A finding of no significant impact FONSI was issued on May 22, 2014. McMillen Jacobs was the project lead with assistance from the NRCS, Washington County, and the Shivwits Band of Paiutes. McMillen Jacobs also prepared the concept design of alternatives for the project that were examined in the EA. Under a separate contract, McMillen Jacobs provided the preliminary and final design.

EA, Concept Design, and Geotechnical Services for the Tibble Fork Dam Plan, Utah. Tibble Fork Dam is located in the USFS, Uinta-Wasatch-Cache National Forest. The project included modifying the dam to meet current NRCS and Utah State Dam Safety regulations and engineering standards. McMillen Jacobs provided the NEPA plan EA for NRCS that addresses and analyzes environmental impacts from the project. The plan EA process includes public involvement, coordination with the USFS, public meetings, environmental analysis and the documentation of alternative development as well as presents an economic analysis of the project. McMillen Jacobs was the project lead with assistance from the NRCS, USFS, and the project sponsor. McMillen Jacobs also prepared the concept design of alternatives for the project, which met both the NRCS and USFS NEPA regulations. A FONSI was issued on February 9, 2015.

McMillen has done one of the best jobs I’ve ever seen of formatting the EIS consistent with NRCS NEPA protocols (i.e., the division into soil, water, air, plants, animals, and human resource concerns.) It is also very well organized and was easy for me to get through quickly.” — Karen Fullen, ecologist (environmental compliance), USDA-NRCS

Silver Lake Flat Dam Rehabilitation Plan and Environmental Assessment, Utah. The NRCS is partially funding the rehabilitation of Silver Lake Flat Dam located in the United States Forest Service (USFS) Uinta-Wasatch-Cache National Forest in Utah County, Utah. The project includes modifying the dam to meet current NRCS and Utah state dam safety regulations and engineering standards. McMillen Jacobs led the preparation of a supplemental watershed plan and environmental assessment for the NRCS that addressed and analyzed impacts to the recreational uses of the area as well as to water quality and wetlands, special status plant and animal species, cultural resources, and transportation and infrastructure. The plan EA process included public involvement, coordination with the USFS, public meetings, environmental analysis and the documentation of alternative development. The plan EA met NRCS NEPA regulations as well as USFS NEPA regulations, and a FONSI was issued on January 22, 2014. McMillen Jacobs was the project lead with assistance from the NRCS, USFS, the Utah Division of Water Resources (design engineer) and the project sponsor.

Santa Cruz Site One Dam Rehabilitation Plan EA and Concept Design, New Mexico. The project includes modifying the dam and debris basin to meet current NRCS and New Mexico State Dam Safety regulations and engineering standards. McMillen Jacobs is providing a NEPA plan EA for NRCS that addresses and analyzes environmental impacts from the project. The plan EA process includes public involvement, coordination with the local sponsor (the Santa Fe and Pojoaque soil and water conservation districts), environmental analysis and the documentation of alternative development, as well as an economic analysis of the project. McMillen Jacobs is the project lead with assistance from the NRCS and the project sponsor. McMillen Jacobs is also preparing the concept design of alternatives for the project that will be analyzed in the plan EA, which will meet NRCS NEPA regulations.

Santa Cruz River Watershed (Sites 1, 2G, 3A, 4, and 6) Inundation Studies, New Mexico. McMillen Jacobs performed seven dam breach analyses on seven floodwater-retarding structures in the Santa Cruz Watershed in New Mexico. Inundation maps were developed from HEC-RAS model results and will be used by NRCS to develop EAPs. Dam heights range from 50 to over 100 feet with reach lengths of five to 25 miles, and 266 to 732 acre-feet in storage volume. McMillen Jacobs created hydrology and inundation maps using several NRCS tools, including TR-20 and the SITES model, with inundation maps created using HEC-RAS with simulated dam breaks. The project included a 10-meter DEM merged with three-meter LiDAR.

Ogden Bay Waterfowl Management Area, Weber County Structure Repairs EA, Ogden, Utah. Weber County, through financial assistance from the NRCS, proposed to repair three water control structures and update outdated infrastructure on the Ogden Bay Waterfowl Management Area on the Weber River west of Ogden, Utah. The project included modifying the structures to increase flood flow capacity beyond what was available prior to the 2011 flood event. This holistic approach reduces the construction of levee repairs and impacts to the natural resources of the riparian corridor while providing similar flood protection. This project will be funded under the NRCS Emergency Watershed Protection Program but required an EA before Weber County could receive funds to construct the project. McMillen Jacobs led the preparation of an EA for the NRCS that addressed and analyzed environmental impacts from the project. The EA process included public involvement, landowner negotiations, public meetings, environmental analysis, and the documentation of alternative development. A FONSI was issued on November 19, 2013. McMillen Jacobs is the project lead with assistance from the NRCS, Weber County, and other consulting firms.

Little Weber River Cutoff Channel EA, Weber County, Utah. Weber County, through financial assistance from the NRCS, proposed to construct a flood water diversion channel off the Weber River west of Ogden, Utah. The project includes the construction of an intake structure on the Weber River, several thousand feet of channel enlargement, increased flow capacities at three road crossings, and other structures to increase flood flow capacity beyond what was available prior to the flood of 2011. This approach reduces the construction of levee repairs and impacts to the natural resources of the riparian corridor while providing similar flood protection. McMillen Jacobs prepared a NEPA EA for the NRCS that addressed and analyzed environmental impacts from the project. The EA process included public involvement, landowner negotiations, public meetings, environmental analysis and the documentation of alternative development. A FONSI was issued on March 5, 2014. McMillen Jacobs was the project lead with assistance from the NRCS, Weber County, and other consulting firms.

Blacksmith Fork EWP NEPA Assistance, Cache County, Utah. Through financial assistance from the Natural Resources Conservation Service (NRCS), Cache County is proposing to create a floodplain easement/debris basin to alleviate flooding problems on the Blacksmith Fork River in Logan, Utah. The project includes the removal of up to 15 residential homes, the removal of an RV park, the construction of a debris basin to collect excess sediment in the river, and the creation of a floodplain easement to allow natural flooding of the river on the adjacent banks.

NRCS National Engineering Handbook Manual for Seismic Evaluation for NRCS Dams. The NRCS drafted and updated Technical Release No. 60 (TR60), earth dams and reservoirs, including requirements for consideration of earthquake loading. McMillen Jacobs was retained to develop a seismic analysis manual to guide NRCS personnel on performance and implementation of seismic analysis as required by TR60. The manual was developed to provide comprehensive guidance on how to perform the actions required ensuring that structures met all agency criteria. The target users for the manual are engineers and geologists. The McMillen Jacobs team provided earthquake loading estimation and analyses methods. We also developed how the determination of earthquake loading for an analysis of newly designed earth structures and rehabilitation of existing earth structures would be conducted. These structures were primarily small earthen flood detention dams with small pools, large water supply dams, and other earth conservation structures (such as intake structures and structural spillways). A wide range of foundation conditions were taken into consideration as this manual addressed all applicable structures located throughout the United States.

Green River Cultural Resources Mitigation and Treatment Plan, Utah. McMillen Jacobs assisted the NRCS in preparing documentation, manuscripts, National Register of Historic Places (NRHP) registration forms, archaeological monitoring, and a museum display for purposes of meeting the requirements of section 106 of the NRHP. Stakeholders and agencies entered into a memorandum of agreement for plan implementation.