Kenall played a vital role in executing the scope of work, which included surveying, hydraulic and hydrologic modeling, and engineering services necessary for the design, operation, and maintenance of floodwater retarding structures. As part of the assessment process, the team conducted site visits and performed visual evaluations of the dams and their associated appurtenances. These evaluations examined the principal spillway pipe, riser, and outlet, assessed the foundation drainage system, and analyzed the embankment and auxiliary spillway to determine overall structural integrity.

Current watershed delineations were compared to the original delineations to verify any significant differences that could impact the dams’ functionality. LiDAR data and bathymetric surveys were used to develop updated structure capacity tables to reflect present conditions. A hazard classification analysis was performed to assess the downstream area for potential risks and confirm each dam’s classification aligned with regulatory standards.

Through these comprehensive assessments, Kenall provided valuable insights that informed decision-making regarding dam rehabilitation and safety improvements.

The post Broadmouth Creek # 8, Big Garvin Creek #9B, Brushy Creek # 17 Dam Assessments & Watershed Rehabilitation Programs appeared first on Kenall.

T-7A Sunshade Allied Support

The T-7A Sunshade Allied Support project involved the relocation and installation of 80 new sunshades to accommodate the T-7A aircraft. This work included apron demolition and repairs, preparing the site for the placement of new sunshade equipment. Supporting utilities were installed to provide the necessary infrastructure for operational use. These additions contributed to improved aircraft protection and operational readiness while maintaining compliance with airfield standards.

T-7A Ramp Expansion Project

The T-7A Ramp Expansion Project involved the construction of an expanded airfield ramp to create space for the newly installed sunshades. The work included apron demolition, repairs, and supporting facilities, allowing for efficient aircraft movement. The scope covered utilities installation, site improvements, pavement construction, site preparation, special foundations, and communications infrastructure, all critical for a fully functional airfield. The ramp expansion provided space for 46 out of Sheppard’s fleet of 112 T-7A aircraft, supporting operational efficiency.

As part of the planning charrette process, Level II PCR reports and cost estimates were developed for both projects. These documents provided in-depth analysis, cost projections, and logistical considerations, supporting decision-making and budget planning. The findings and recommendations from the PCR-II process helped establish the groundwork for future implementation, ensuring Sheppard Air Force Base had the necessary infrastructure to accommodate the introduction of T-7A aircraft.

The post Sheppard Air Force Base Planning Charrette Report, Level II (PCR II) for T-7A Allied Support & T-7A Ramp Expansion appeared first on Kenall.

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.

The post Trinity River Champions Lake Levee and Spillway Repairs & Replacement appeared first on Kenall.

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.

The post Trinity River Wildlife Refuge, Culvert and Road Replacement at Champions Lake appeared first on Kenall.

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.

The post San Joaquin River Ecosystem Restoration & Water Management Program appeared first on Kenall.

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.

The post Pine Bluff Arsenal, Plainview Access Control Point and Visitor Control Center Design appeared first on Kenall.

The post Altus Air Force Base, Airmen Dormitory Leader (ADAL) South Gate Property Condition Report (PCR II) appeared first on Kenall.

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.

The post Dallas Floodway AT&SF Bridge Demolition appeared first on Kenall.

Package 1 involved the extension of the Colorado River Levee, including three miles of earthen levee and one mile of floodwall. It incorporated crucial features such as the Black-Collins sump areas, Polk Street storm drainage improvements and pavement, closure structures, and a one-mile road elevation for FM102. Grading and slope protection for the Colorado Riverbanks near the sluices were designed, supplemented with rock riprap to control erosion. Post-construction seeding and erosion control measures were detailed as part of the package.

Package 2 focused on the Railroad Levee, Baughman Slough Levee, and floodwall design, alongside culverts and a significant widening of the channel bottom from 50 to 125 feet over a four-mile stretch. This package also included the design of three replacement bridges: the Moers Lane Bridge and Fulton Street Bridge, built as multi-span concrete structures on drilled piers, with spans of 175 feet and 204 feet, respectively. Efforts were made to optimize drainage and minimize erosion impacts on the channel slopes.

Kenall developed AutoCAD Civil 3D drawings at progressive stages—30%, 60%, 90%, and 100%—and provided detailed technical specifications. The floodwall design adhered to stringent engineering standards (EM 1110-2-2000, EM 1110-2-2100, EM1110-2-2502, and EM 1110-2-2906), ensuring compliance. These designs improved flood risk management for the City of Wharton.

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

The post Colorado River Levee Extension & Baughman Slough Channel Widening appeared first on Kenall.

The project included demolition, new pavement, adjustments to the outbound Active Vehicle Barrier (AVB), and roadway geometry changes. Traffic signals, signs, and pavement markings were upgraded, while guardrails were extended, fences modernized, and stormwater systems enhanced. Completed in accordance with Unified Facilities Criteria and Army Design Criteria, the project addressed issues identified in a 2018 traffic study and improved overall efficiency.

The post Santa Fe Access Control Point (ACP) Exit Roadway Widening appeared first on Kenall.