Award winning Zarinkelk Engineering Services, Inc. (ZESI), established in 2001, is a Houston, Texas-based, woman-owned, consulting engineering firm. ZESI is a civil and structural engineering company with a client base that includes primarily municipal agencies. ZESI is a State of Texas certified WBE and HUB. ZESI’s mission is to provide reliability to our clients and to deliver excellence in a timely manner. ZESI offers a wide range of professional services including: • Program Management • Project Management • Construction Management • Drainage Analysis and Modeling • Water Resource Planning • Feasibility Studies • Road Design • Bridge Design • Traffic Engineering • GIS • Stormwater Design • Wastewater Design • Cost Estimating Services • Negotiating and Bidding Services ZESI is also pre-certified in following TxDOT categories: 1.6.1 MAJOR INVESTMENT STUDIES 3.1.1 ROUTE STUDIES & SCHEMATIC DESIGN - MINOR ROADWAYS 3.2.1 ROUTE STUDIES & SCHEMATIC DESIGN - MAJOR ROADWAYS 3.3.1 ROUTE STUDIES & SCHEMATIC DESIGN - COMPLEX HIGHWAYS 3.4.1 MINOR BRIDGE LAYOUTS 3.5.1 MAJOR BRIDGE LAYOUTS 3.6.1 MULTI-LEVEL INTERCHANGE AND EXOTIC BRIDGE LAYOUT 4.1.1 MINOR ROADWAY DESIGN 4.2.1 MAJOR ROADWAY DESIGN 4.3.1 COMPLEX HIGHWAY DESIGN 5.1.1 MINOR BRIDGE DESIGN 7.1.1 TRAFFIC ENGINEERING STUDIES 7.4.1 TRAFFIC CONTROL SYSTEMS ANALYSIS, DESIGN AND IMPLEMENTATION 8.1.1 SIGNING, PAVEMENT MARKING AND CHANNELIZATION 8.5.1 HIGHWAY-RAIL GRADE CROSSINGS 9.1.1 BICYCLE AND PEDESTRIAN FACILITY DEVELOPMENT 10.1.1 HYDROLOGIC STUDIES 10.2.1 BASIC HYDRAULIC DESIGN 10.3.1 COMPLEX HYDRAULIC DESIGN 10.4.1 PUMP STATION-HYDRAULICS 10.5.1 BRIDGE SCOUR EVALUATIONS AND ANALYSIS