A design-build package was prepared to repair the levee, spillway, and associated structures by developing construction documents, specifications, and cost estimates for the contractor. Kenall engineers conducted a thorough evaluation of the area’s flood conditions, completed levee inspections, and certified the levee for a 100-year flood event according to 44 CFR §65.10. They designed a new spillway measuring 30-ft wide and 300-ft long, incorporating services across hydrology and hydraulics, survey, geophysical, geotechnical, civil, and structural engineering disciplines.

Kenall’s proposed design recommended using Articulated Concrete Blocks to line the spillway top and installing sheet piles to an elevation of –19.50 ft, matching the spillway’s elevation. The levee and spillway recommendations rebuilt and reinforced the structures to ensure safe access for public use and utility infrastructure needs. Recreational amenities, including fishing platforms, a concrete boat ramp, and boardwalk, were also restored.

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With emergency funding approved in August 2018, Kenall acted swiftly, submitting a design proposal within two days of the request, which included a site visit. Following the notice to proceed on September 5th, Kenall completed the necessary surveys, topographic assessments, hydraulic modeling, and design work for the new roadway, culvert, and guardrails by October 15th, delivering all bid documents to the US Fish and Wildlife Service (USFWS) on time.

The project focused on replacing the structurally inadequate culvert under CR 417 with a 60-foot-long, 60-inch diameter reinforced concrete pipe. Advanced hydraulic models—HEC-HMS, HEC-RAS, and HY-8—were employed using data from surveys, LiDAR, and geotechnical studies. These models guided the design to optimize the culvert’s capacity, cover depth, and performance under hydraulic pressure. Erosion protection and regrading measures were implemented for the downstream channel to ensure effective floodwater management within its banks.

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Kenall supported the project by providing geotechnical drilling, engineering, and civil design services. Additional efforts included landowner coordination, topographic surveys, and subsurface utility engineering (SUE) utility clearances. Stabilization measures were also completed, such as new fill and compaction, retaining walls, and anchors. Civil plans, specifications, and construction cost estimates were prepared for repairs in areas like Reach 2B, Sack Dam, Arroyo Canal, and the Mendota Pool Bypass.

This high-profile project faced various challenges, including work in environmentally sensitive and non-urban areas, as well as delays related to accessing private property. To address these obstacles, project personnel developed a detailed Subsurface Investigation Work Plan (SIWP) to reassure agencies and landowners about the project’s execution. By taking a proactive approach and collaborating directly with landowners, the team accelerated the environmental and permitting processes and gained access to restricted locations quickly.

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Kenall was responsible for delivering the complete design for several components, including the ID check station, gatehouse, search office, visitor control building, overhead canopies, guard houses, parking lot, utilities, detention pond, approach roadway, culverts, and outfalls. The team led the development of conceptual and final design documents, as well as provided project management, design charrettes, site investigations, value engineering studies, design review meetings, quality control in architectural and geotechnical aspects, and responses to comments, requests for information (RFIs), and bidder inquiries.

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Final grades were adjusted to align with the surrounding terrain, with a focus on facilitating floodwater management and ensuring safe downstream passage, while retaining portions of the bridge as part of the trail. Key deliverables from Kenall included design drawings, specifications, engineering considerations and instructions for field personnel (ECIFP), a detailed design review (DDR), and cost estimates.

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Major drainage improvements were carried out, including erosion repair, sediment removal, stabilization of disturbed areas, and flood prevention measures for infrastructure. Tasks included installing culverts, headwalls, inlets, trapezoidal channels, and increasing ditch capacities. Stormwater Best Management Practices (BMPs) were implemented, along with the resolution of failures identified during site investigations.

Kenall collaborated with stakeholders through on-site design charrettes and review meetings. Detailed drawings and technical specifications were developed using AutoCAD Civil 3D, ensuring effective coordination.

Work performed on this project was completed under the Kenall-Freese & Nichols 8a Mentor-Protégé Joint Venture (KFNI JV).

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Renovation efforts included comprehensive demolition and structural upgrades. Site improvements encompassed storm drainage, parking, lighting, utilities, landscaping, fencing, and grading. The building itself underwent extensive repairs, including the installation of ASHRAE 90.1-compliant HVAC systems and integration of fire protection and life safety measures adhering to UFC 3-600-01 guidelines.

Living spaces were enhanced with newly designed individual restrooms, washer-dryer rooms, kitchens, and day rooms on every floor, providing accessible amenities and internet connectivity. Additional features included an administrative office with cubicles, a mail inspection area, and luggage storage space. The design also addressed health and safety concerns within the existing structural framework, incorporating roof downspouts tied into underground drainage systems.

The project required five design submittals, progressing through 35%, 65%, 95%, 100%, and Solicitation phases, followed by an Issued for Construction package. All work conformed to the latest International Building Code (IBC), Unified Facilities Criteria (UFC), United States Air Force, and Army Design Criteria, ensuring the dormitory was transformed into a safe, functional, and welcoming environment for enlisted personnel.

Work performed on this project was completed under the Kenall-Freese & Nichols 8a Mentor-Protégé Joint Venture (KFNI JV).

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The renovation project included upgrades such as additional office space, restrooms, new electrical and mechanical systems, updated interior finishes including walls, ceilings, and flooring, and an approved automatic sprinkler system for fire protection. The designs also featured energy efficiency enhancements, including improved humidity control using dehumidified make-up air and better sealing of building envelopes to reduce infiltration.

Among the buildings, B615 stood out as a unique music facility and band hall dating back to the 1800s. The design approach focused on creating a state-of-the-art music facility while ensuring the historical significance and architectural character of the structure were preserved.

The project conformed to the latest International Building Code, Unified Facilities Criteria, USAF & Army Design Criteria, and JBSA-FSH Architectural Standards. Throughout the design phase, five progressive submittals were required (35%, 65%, 95%, 100% and Issued for Construction). Construction Phase Services included reviews of 20 submittals and shop drawings, responses to 30 Requests for Information, and on-site visits to oversee the implementation. This effort skillfully balanced modernization with the preservation of historic integrity, achieving a successful transformation of the properties.

Work performed on this project was completed under the Kenall-Freese & Nichols 8a Mentor-Protégé Joint Venture (KFNI JV).

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Security upgrades included designs for six facilities featuring improved lighting, fortified fencing compatible with common access card (CAC) systems, vehicle gates, and pedestrian turnstiles. Safety enhancements extended to seven facilities, focusing on fire protection, fire suppression, and life safety systems. Designs for two fire stations involved advanced exhaust systems, extended rollup doors, alarm installations, and infrastructure repairs such as decks and showers. Five projects concentrated on environmental safety with berms around fuel tanks, wash racks, and containment basins. Seven additional projects introduced fall protection systems, bridge crane replacements, and upgraded compressed air systems. Major renovations reinforced access control points (ACPs) and optimized layouts for warehouses and fire stations.

Comprehensive engineering studies, evaluations, and consultations were conducted, resulting in detailed design documentation for 19 sustainment, restoration, and modernization (SRM) projects. These included Design-Bid-Build RFPs specifying construction and performance requirements with MII cost estimates, six RRAD-specific procurement work packages, and two projects involving DD Form 1391 preparation. All designs adhered strictly to UFC criteria for safety compliance.

Work across all 27 locations included topographic surveys, design charrettes, conceptual planning, final designs, and construction bid documents, delivering impactful safety and security advancements throughout the depot.

Work performed on this contract was completed under the Kenall-Freese & Nichols 8a Mentor-Protégé Joint Venture (KFNI JV).

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