Projects
Texas-Sized Case Studies in ESA, TCEQ, and Natural Resource Management.
From initial planning to project completion, early collaboration with our experts can save both time and money. By anticipating environmental requirements, whether it’s assessing macroinvertebrate communities for critical water supply infrastructure, monitoring bat colonies during major bridge replacements, relocating freshwater mussels in deep urban rivers, or guiding complex karst permitting for highway expansions, we provide the foresight needed to keep projects efficient, compliant, and cost-effective. These case studies show how early involvement can turn potential challenges into opportunities for smoother, more effective project delivery.
Environmental Due Diligence for Property Development
Zara provides ASTM-compliant Phase I Environmental Site Assessments to help developers, property owners, and project teams identify environmental risks early and make informed decisions before acquisition or development.
Dam Stabilization in Sensitive Aquatic habitat
Zara provided protected species relocation, biological monitoring, and adaptive management during emergency repairs to Spring Lake Dam, translating federal conservation requirements into practical construction controls.
Karst Resource Management along US 281
Zara provided karst, conservation, and regulatory expertise throughout the US 281 project lifecycle, helping TxDOT navigate sensitive karst resources from environmental review through construction.
Cave Surveys Supporting the Trans-Canyon Pipeline at Grand Canyon
Zara surveyed three cave systems for the National Park Service and delivered the biological data needed to move permitting forward for the Trans-Canyon Pipeline extension, the park’s water supply line.
US 190 Bridge Replacement: Mussel Relocation and ESA Consultation
Zara helped TxDOT keep the US 190 bridge replacement moving with mussel surveys, construction-phase relocation of more than 1,300 mussels, and consultation documentation that led to a USFWS conference opinion.
Bridging Infrastructure & Sensitive Resources at Redbud Trail
Zara Environmental LLC conducted multidisciplinary biological and geologic investigations to identify sensitive resources, inform bridge design, and support regulatory compliance within the Edwards Aquifer Recharge Zone.
Clearing the Way for the California Crossing Bridge on the Elm Fork
Zara cleared the work area for TxDOT’s California Crossing bridge replacement, using zero-visibility scientific diving to relocate state-listed mussels and PIT tagging to document their survival afterward.
Comprehensive Bat and Habitat Monitoring for Central Texas Bridge Replacement Projects
Zara combined bat relocation, PIT tagging, artificial roost design, and long-term monitoring to protect established bat colonies while supporting major bridge replacements across Central Texas.
Groundwater and Cave Monitoring in an Active Training Area at Fort Hood
Zara mapped groundwater flow and monitored sediment and cave conditions at Rocket River Cave, giving Fort Hood the data to manage the cave system alongside ongoing live-fire training.
Mapping Groundwater from Roadway to Cave
Zara conducted groundwater tracing and water quality studies to help the City of Austin design roadway improvements that protect nearby caves, groundwater, and sensitive karst resources.
What people are saying about us
“During construction of a project in San Antonio, we uncovered a unknown karst feature near the mapped limits of the Robber Baron Cave. After one call to Zara, we had specialists in the feature who were able to evaluate, monitor, sample for endangered species and provide a closure plan. We were very pleased with Zara’s quick response and expertise which allowed construction to proceed according to schedule.”
– JEFF CASBEER, SENIOR ENVIRONMENTAL PLANNER, RPS GROUP
Let’s Get Your Project Moving
From field studies to final permits, we simplify complex regulations and keep your project moving forward—on time, on budget, and fully compliant.