Heavy Civil Projects
The following projects highlight the diverse range of services we provide and demonstrate our expertise in delivering high-quality solutions across various challenges and sectors. Each project underscores our commitment to excellence and our ability to tailor our approach to meet the specific needs of our clients.
I-215 Bridge Rehabilitation
This project involved significant infrastructure improvements, including the replacement of one bridge deck and preservation work on two bridges. The preservation work included concrete repair and the reinforcement of columns using fiber-reinforced polymer (FRP) wraps to enhance structural integrity. As part of the project, abandoned water and gas lines attached to the existing structure were removed. The project required careful coordination with UTA due to the proximity of the UTA Trax line, which runs parallel to the bridges. Additionally, due to the high traffic volumes on I-215, the work had to be completed within short closure periods, ensuring minimal disruption to traffic flow. (Project is still under construction)
Henrieville Bridge Replacements
The Henrieville Bridge Replacement project involved replacing bridges located along SR-12 near Henrieville, UT, in a remote area of the state with low average daily traffic. Due to the remoteness, any detour would have added 180 miles and 3.5 hours to travel time, resulting in significant daily user costs. To avoid this, a temporary bypass road was constructed, and the bridges were replaced in phases to maintain traffic flow during construction. The project design required close coordination among various civil engineering disciplines due to the significant environmental, geotechnical, and hydraulic challenges.
(Project is still under construction)
I-15; Nephi Bridge Rehabilitation
K&A collaborated with UDOT's Structures Division to develop and QC structural plans, specifications, and estimates for preserving 11 bridges in Nephi, Utah. Two of the bridges required full deck replacements as part of the project. Since these bridges carry I-15 traffic, the work was phased and complex traffic management strategies were employed to maintain traffic flow during construction. By working closely with UDOT, K&A ensured that the repairs were of high quality while minimizing disruptions for drivers.
C-334 Bridge Widening Over SR-13
K&A provided the design for a double overhang bridge that widened I-15 SB to accommodate an additional onbound acceleration lane. The acceleration lane allows trucks more time to merge, thereby improving safety for merging vehicles. The bridge spanned an existing UPRR rail line, necessitating coordination with the railroad. Additionally, a chain link design was incorporated into both the new and existing parapets.
The Colony: Private Residence Bridge
K&A provided a private residential bridge to access mountainside property at the Colony.
I-15; 800 S Emergency Deck Repair
K&A provided emergency repair details for the replacement of localized deterioration of the 800 S deck.
I-15; MP 37 to 44 Add NB Climbing Lane
K&A is designing two bridges that will provide an additional I-15 NB climbing lane near Zion National Park. Phasing the construction will minimize the traffic impacts while providing economical construction. K&A is a subconsultant to Lochner.
SR-118; Bridge Replacement Over Sevier River
K&A recently completed the bridge design for replacement of the existing structure over the Sevier River. The new prestressed concrete bridge will increase roadside safety and improve hydraulic performance while minimizing the roadway vertical profile impacts to provide additional freeboard and minimize roadway construction costs. The new bridge will also be outside of the river ordinary high water mark, reducing work in the river and the associated costs and risks.
2200 West Widening, South Jordan, UT
K&A provided structural design services for the widening of 2200 West in South Jordan as a subconsultant to PEC. A culvert extension and a replacement box culvert were required to accommodate the new roadway section.
SR-311 Over the Strawberry River
K&A provided a bridge replacement over the Strawberry River. Our team performed the hydraulic analysis and was able to match the existing roadway profile by keeping the span to a minimum. We accomplished matching the previous span by moving one abutment in front of the existing bridge abutment.
I-80 Parley’s Summit to Jeremy Ranch WB Truck Lane, Wildlife Crossing
K&A provided QC for the design and plans of the two span 319’ haunched steel girder bridge allowing wildlife to safely cross I-80. K&A was a subconsultant to WSP.
Jordan River Pedestrian Bridge Shoring
K&A provided shoring for Gerber Construction to allow rapid erection and splicing of the 280' pedestrian bridge where it crosses 3 UPRR lines.
I-15 Hillfield Road Interchange Replacement
K&A performed the role of Structures Design Manager as a subconsultant to WSP for the replacement of two 178' single span I-15 mainline bridges. Replaced by sliding methods, K&A lead the development of the slide details, with the first bridge lowered 2' and moved into place in 7 hrs. The southbound bridge was used as a shoofly to maintain I-15 traffic.
Parley's Trail Over 600 West
K&A provided the design and plans for the addition of a pedestrian bridge requiring modification of UTA bridge abutments. K&A was a subconsultant to Perkins Engineering.
The Colony at Iron Mountain
K&A designed 11 hollow core prestressed slab bridges, 9 Conspan arch bridges, a box culvert, and a twelve foot diameter pipe w/ headwalls for the Colony development in Park City. These were developer funded projects in search of high-value aesthetic solutions that were quick to erect.
Salt Lake City Airport Terminal Bridge
K&A provided QC of the post-tensioned bentcaps, bearings, and strength limit state design of the substructure for the 2000 foot, 19 span bridge providing access to new terminals. K&A was a subconsultant to Horrocks Engineers.
(design is complete, under construction)
I-15 Manderfield Bridge Replacement, Superstructure Redesign and Temporary Abutments / Slide Design
K&A acted as a subconsultant for Flatiron Construction. K&A redesigned a superstructure saving over $1M on a $4M project while maintaining the schedule provided at project award. K&A provided the superstructure redesign, designs of the temporary abutments, and sliding details. Both interstate bridges were slid into place in a single weekend closure in less than 57 hours.
UDOT Structures Support UDOT, Statewide
K&A provided rehabilitation projects working with UDOT structures including a replacement of a continuous 3 span interior beam on Redwood Road over the Surplus Canal (shown), wall rehabilitations in Fairview Canyon, and safety upgrades on several other projects. Jason worked directly with UDOT structures staff over 2 years on 10 projects, often providing field support.
Wahlquist Bridge Widening
K&A was the structures lead as a subconsultant to Gardner Engineering providing the design and plans for the 25’ widening of a three span slab bridge on spread footings over the Willard Canal.
US-89 and SR-203 Box Culvert and Retaining Walls
Working as a subconsultant to PEC, K&A provided a box culvert design that allowed phased construction with precast footings allowing US-89 traffic to be maintained throughout construction. These structures were a last minute addition to project scope after PIH, the design was completed in 6 weeks. Jason developed the design and plans.
Huntington Canyon Emergency Erosion Repair
An emergency project with overturned walls, regular flooding in the canyon required an accelerated design and construction schedule. K&A accelerated the plans knowing the consequences of the weather, the team used creative methods of handling the flows (using water bridge shown), the construction was completed 3 months after NTP.
SR-154; Bangerter Highway at 13400 South Intersection Modification
K&A provided structural design, plans, specifications, and an engineer’s estimate for a box culvert extension and three retaining walls for the UDOT in-house project that adds two free right turn lanes from 134th eastbound to Bangerter southbound.