Public engineering firm profile
Creating Innovative Infrastructure Solutions
Ulteig is an infrastructure engineering and consulting practice founded in 1944 that serves public and private clients across North America. It delivers comprehensive engineering design, program management, and technical services across its Lifeline Sectors of Power, Renewables, Transportation, and Water. Through its acquisition of Paradigm Environmental in 2025, the practice has significantly deepened its capabilities in water resources, watershed analysis, and stormwater management.
Comprehensive technical services to modernize and secure electrical grids, encompassing transmission, substation design, and market planning.
Siting, design, and integration services for clean energy developers and utilities to accelerate decarbonization projects.
Multidisciplinary planning, structural design, and funding support to deliver resilient roadways, bridges, and mobility solutions.
Advanced water modeling, watershed analysis, and sustainable stormwater management utilizing integrated visualization and planning systems.
Owner's representation, construction management, and project controls to execute complex infrastructure safely, on time, and within budget.
2024 | Brazos County, Texas | Texas Department of Transportation | Highways & Roads
Developed a detailed design schematic, conducted environmental assessments, and explored realignment alternatives for FM 159 in Brazos County, Texas, to address river encroachment. Shifting the roadway parallel to the BNSF railroad alignment required 3D modeling programs to integrate designs seamlessly.
San Mateo County, California | City/County Association of Governments of San Mateo County | Water Resources
Led the development of San Mateo County's sustainable master plan to merge complete streets with green infrastructure. This initiative identified specific opportunities for addressing multiple sustainable benefits across the countywide area.
View project sourceSan Diego County, California | County of San Diego Department of Public Works | Stormwater & Flood Control
Collaborated with the Department of Public Works to lead a multi-benefit stormwater planning study for the Casa de Oro and Spring Valley communities, identifying sustainable and cost-effective stormwater solutions.
View project sourceNew Mexico | Wind
Delivered grid interconnection solutions for the Western Spirit Wind development, including collection system engineering, substation design, gen-tie transmission, and CAISO metering coordination.
View project sourceTexas | Energy Storage
Provided Engineer of Record (EOR) services for large-scale battery storage infrastructure to support grid stability and energy resource integration.
View project sourceBridges
Repaired a deteriorating bridge pier using advanced fiber-reinforced polymer (FRP) wraps, bypassing the need for costly coffer dams to save time and reduce environmental impacts.
View project sourceWilliston, North Dakota | North Dakota Department of Transportation | Highways & Roads
Conducted a comprehensive evaluation of concrete and steel material options, preparing detailed engineering reports to weigh the advantages and disadvantages for the truck reliever route under specific project conditions.
View project sourceColorado | Power Transmission & Distribution
Executed engineering and design for a high-voltage transmission line rebuild to strengthen reliability and capacity.
View project sourceMarket Leader, Renewables
Manka Khanna leads Renewables market initiatives at Ulteig, where she focuses on accelerating renewable energy deployment through strategic business development and early-stage project support. She has more than 15 years of energy sector experience, leading commercial strategy, valuation, and growth initiatives across renewables, hydrogen, and upstream oil and gas. She holds an MBA in Sustainability from the Yale School of Management and is a petroleum engineer by training.
Grants and Funding Program Manager
Sandy Zimmer manages Ulteig's Transportation Grants and Funding Services, helping public agencies navigate federal and state grant opportunities, develop robust benefit-cost models, and manage complex compliance requirements.
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