RCI Engineering
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Christopher Zrinyi, PE

Professional Highlights:

Pulsipher Wash, Mesquite, NV
This project consisted of 4000 LF of natural channel with bank scour protection, 20' by 14' arch culvert crossing and associated storm drain facilities.  Mr. Zrinyi was the engineer of record on the technical drainage study and FEMA CLOMR.  USFW jurisdiction of the Pulsipher Wash mandated that improvements within the supercritical natural wash would be minimized.  Excessive scour velocities were mitigated through scour rockery walls along the channel banks.  Improvements were designed to ensure post development velocities were not increased over pre-development velocities.  Mr. Zrinyi was responsible for overall Quality Assurance and Quality Control of all hydraulic and hydrological calculations.  Models included HEC-1, sedimentation, scour analysis, and HECRAS.  Mr. Zrinyi reviewed overall wash facilities for possible value engineering alternatives and constructability issues.  Duties also included direct supervision of engineers and designers in preparation of final design documents and improvement plans.

Hardy Way, Mesquite, NV
This project consisted of approximately 4,800 lf of roadway and utility design for the arterial roadway improvements of Hardy Way. The design consisted of interim and final roadway horizontal and vertical alignments, design of 4,800 lineal feet of 16-inch water main and re-claimed water line, 2,500 lineal feet of storm drain, and 300 feet of sewer.  Flood control facilities included the design of 240 lineal feet of double 14 by 10 Reinforced Concrete Boxes located in a FEMA A zone to convey approximately 2,300 cfs within Pulsipher Wash.  Improvement Plans included re-grading of the Pulsipher Detention Basin to account for the storage lost due to the roadway embankments.  Mr. Zrinyi was engineer of record for the technical drainage study, responsible for hydrological models, hydraulic analysis, HECRAS model of RCB crossing including FEMA A Zone impacts, and PMF analysis of roadway embankment impacts to Pulsipher Detention Basin.   Mr. Zrinyi directly supervised designers, drafters, and engineers; reviewed drawings for quality control and assurance; ensured plans and specifications were in compliance with Clark County Regional Flood Control District (CCRFCD) Design Manual.

South Edge Pod 1-4, Henderson, Nevada
Single-family residential community that included 5 different housing types ranging from attached townhouses with alley loaded garages to estate style homes with street loaded garages. The drainage study analyzed & directed the storm water flows into 2 existing storm drain stubs. The flows were collected by separate drop inlet systems at critical locations in the project. The analysis included a comparison of the garage floor elevations in relation to the finished floor elevations, the streets & the alleys. This was critical due to the length of the alley driveways being limited to 5 feet; the garage floor drops being limited to 18"; the finished floors needing to be protected from the storm water flows in the street and alley; & the garage floors needing to be protected from flows in the alley while not exceeding the maximum allowable driveway slope. Specific tasks include hydrologic analysis, hydraulic analysis, utility locating, & improvement plan preparation.  Mr. Zrinyi was the engineer of record for the technical drainage study, responsible for overall Quality Assurance and Quality Control of all hydraulic and hydrological calculations.  Duties also included direct supervision of engineers and designers.

Town Wash, Jim Wilson Detention Basin Expansion & Park Site, Mesquite, Nevada
This project consisted of 2000 lf of CCRFCD channel facilities and analysis and design for the expansion of the existing detention basin.  These facilities were designed to convey 4300 cfs generated by 19 square miles of drainage into the existing Jim Wilson Detention Basin.  Construction of Oasis Blvd. and Canyon Crest Blvd. encroached into the capacity of the existing detention basin. The basin configuration includes 530 Ac-Ft of storage due to the roadway improvements. Revised plans provide for the basin expansion to 580 Ac-Ft to match the pre-development storage capacity.  An analysis of the ultimate expansion to 680 Ac-Ft was prepared and coordinated with the City for insertion into the 2007 Master Plan Update for Mesquite.  Preliminary engineering of the wash improvements included an alternative design analysis submittal to U.S. Fish and Wildlife.  Specific tasks include hydrologic analysis, hydraulic analysis, sediment yield calculations, utility locating, USACOE permitting, and improvement plan preparation.  Mr. Zrinyi was the engineer of record for the technical drainage study and responsible for overall Quality Assurance and Quality Control.  Models prepared included HEC-1 and HECRAS for channel improvements.  Duties also included direct supervision of engineers and designers in preparation of final design documents.

Duck Creek Channel Phases 1 through 4, Las Vegas, Nevada
This project consisted of Final Design of 13,000 linear feet and pre-design of an additional 6,000 linear feet of CCRFCD Master Plan flood control facilities ranging in size from 18-inch RCP to 110-foot wide trapezoidal concrete channel through existing residential areas and natural washes.  Design included supercritical confluence structure for the confluence of the Duck Creek Wash with the Lower Pittman Wash (59-square mile drainage area),  80-foot wide free spanning steel bridge crossing at Stephanie Street,  2 cell (30-foot by 9.4-foot) concrete box culvert bridge crossing at Russell Road, 4 cell (dual 20-foot by 10-foot and dual 25-foot by 10-foot) concrete box culvert bridge crossing at Boulder Highway, 4 cell (30-foot by 10-foot) concrete box culvert bridge crossing at Broadbent Boulevard and gabion weir / energy dissipater structure at outlet to Las Vegas Wash.  Work included hydrology, hydraulics, bridge design, roadway pavement replacement, utility relocation design, survey control, Section 14 analysis, USACOE 404 permitting, topographic mapping, and construction support.  Engineer of record responsible for overall project coordination; prepared design report and hydraulic analysis of final design to ensure compatibility with pre-design assumptions; conducted review meetings with Clark County Public Works, CCRFCD, City of Henderson Public Works, and NDOT; directly supervised designers, drafters and specifications writer; reviewed drawings for quality control and assurance; ensured plans and specifications were in compliance with CCRFCD Design Manual and Clark County Blue Book.

Anthem at Mesquite Master Planned Communities, Mesquite, Nevada
Mr. Zrinyi has been the engineer of record on several technical drainage studies for subdivisions located with the Anthem at Mesquite Master Plan.  Subdivision sizes have varied from 60 unit to 250 unit single family residential developments.  Work includes hydrology, hydraulics, culvert design, storm drain and drop inlet design, overall major facilities budgets, debris racks, and report preparation.  Mr. Zrinyi was responsible for overall Quality Assurance and Quality Control of all hydraulic and hydrological calculations.  Models have included HEC-1, WSPG, Standard Form 6, and HECRAS for various development conditions.  Additionally, Mr. Zrinyi reviewed overall storm drain facilities layouts for possible value engineering alternatives and constructability issues.  Duties also included direct supervision of engineers and designers in preparation of final design documents.

Flamingo Road - Rainbow to Fort Apache, Las Vegas, Nevada
This project consisted of a Regional Transportation Commission (RTC) storm drain system to collect and convey the 10-year flow in Flamingo Road and CCRFCD storm drain crossings for the 100-year flow at Fort Apache Road, Durango Drive, Buffalo Drive, and Rainbow Boulevard.  Mr. Zrinyi was Engineer of Record for 3.5 miles of storm drain improvements ranging from 18-inch RCP to 12'x6' RCB; prepared design report and hydraulic analysis of final design; participated in review meetings with Clark County Public Works, CCRFCD, and RTC; directly supervised designers, drafters, and specification writer; reviewed drawings for quality control and assurance; ensured plans and specifications were in compliance with CCRFCD Design Manual, RTC specifications, and Clark County Blue Book.

B.S. / 1993 / Civil Engineering / University of Southern California

Professional Engineer, Civil / Nevada #13976

Mr. Zrinyi has over 20 years of experience in flood control engineering and project management for private land development and public works infrastructure projects.  Mr. Zrinyi has performed hydrological and hydraulic analyses of flood control channels, storm drain systems, bridge crossings, utility relocations, roadways, and subdivision improvements.  He has been involved with master planned communities for Anthem @ Mesquite by Pulte Homes, Del Webb’s 5,000 acre Anthem @ Henderson master planned community, Summerlin Village 13 for the Howard Hughes Corporation, and Kyle Canyon for Toll Brothers.  In addition to his experience with master planned communities, Mr. Zrinyi has prepared flood control analysis for single family residential, multi-family, and commercial sites.  He was the project engineer on public works infrastructure projects for Clark County, City of Henderson, Boulder City, City of North Las Vegas, and City of Las Vegas.  His background also includes public agency review and approval as a member of the City of Las Vegas Flood Control Department, as well as land development construction for Toll Brothers.
 


Contact information:

ph#(702)-756-6694
czrinyi@rcinevada.com

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