ARIZONA BRIDGES   ...........This 18-span, 2,200-foot, AASHTO VI precast, pretensioned girder bridge was constructed across the Gila River to provide access to the Estrella development, the Estrella Mountain Regional Park and the Phoenix International Raceway.   ...........Located approximately seven miles south of Interstate 10, and 19 miles west of downtown Phoenix, the bridge was designed with 119-foot spans, founded on 5-foot diameter shaft foundations that are nearly 85 feet deep, and was designed to pass the 100-year discharge flow of 250,000 cfs.   ...........The construction of the thirty-eight foundations was challenging due to the fine-grained granular soil and free flowing groundwater. The use of bentonite slurry to prevent caving and sloughing of the sides of the augered excavations was required. Non- destructive nuclear density testing was performed on each completed foundation to verify the soundness of the concrete and evaluate the structural adequacy. Remedial action was required on two foundations. ARIZONA FLOOD CONTROL / WATER CHUTE   ...........This project included a route selection analysis, surveys and designs for nine miles of a four-lane, median divided highway, known as the Bullhead Parkway, in Bullhead City, Arizona. Our designs were completed according to Arizona Department of Transportation (ADOT) Standards and included utility relocation, drainage and roadway improvements.   ........Drainage facilities were required at 27 culvert crossing locations and were designed for 100-year flows ranging from 20 cfs to nearly 20,000 cfs. The drainage facilities included single and multiple barrel pipe culverts (sizes up to 96-inch diameter) and standard ADOT multiple barrel concrete box culverts (sizes up to 12 feet x 12 feet). During construction of the project, structural plate corrugated metal pipe arches were substituted at the four box culvert locations. Concrete wingwalls and apron slabs along with rock lined dikes were designed as inlet protection at the culverts. "Fabriform"   articulated block mattresses with energy dissipation blocks were designed to reduce outlet velocities and protect groups of concrete filled fabric bags that were interlocked and anchored to form an erosion protection mattress near the downstream ends of Silver Creek Wash, Secret Wash and the Highland/Green Wash. The Fabriform mattress included steel cable inside the concrete filled mattress that provided a flexible erosion protection.included steel cable inside the concrete filled mattress that provided a flexible erosion protection. ........The above multiple structural plate arch culverts show two of three crossings of the Bullhead Parkway Road over washes with 100-year discharges of 12,000 to 15,000 cfs each. The steep wash slopes 5¡À % required drop inlets and significant outlet erosion protection.   CHILDREN'S BRIDGE- SAN JOSE, CALIFORNIA   ...........As lead firm, this 120-foot long cable-stayed pedestrian bridge was designed for the Redevelopment Agency of the City Of San Jose. It provides access from the San Jose Convention Center across the Guadalupe River to the Children's Discovery Museum. The 55-foot high pylon is located on the east bank. It has an A-shape and is fabricated from 12-inch steel pipe. A single pair of cables pass over a saddle at the top of the pylon. The backstays connect to the top of the buried counterweight. The forestays connect the pylon to a 24-inch diameter cross-tube under the superstructure. The superstructure consists of a pair of steel box girders with a composite steel and concrete deck between. The foundation consists of driven piles. This project involved topographic surveying of the site, an hydraulic analysis of Guadalupe River to verify clearance of the 100-year flood water surface, structural analysis and design, and civil engineering design of the bridge approaches. We prepared contract plans, specifications and construction cost estimates. (City of San Jose Redevelopment Agency)..   ORINDA BRIDGES   ...........Provided design and contract documents for HBRR bridge replacement/rehabilitation project for two City bridges. Project included field survey, geotechnical, seismic analysis, bridge hydraulics, roadway geometrics, environmental studies, traffic staging, and complete plans, specifications, and estimate. Both bridges, the Manzanita Drive Bridge and the Miner Road Bridge, cross a reach of San Pablo Creek with design flows approaching 6,000 cfs and velocities in excess of ten feet per second. The bridges required rehabilitation to correct various deficiencies, including severe scour at the abutments suffered during winter storms.   NORTH SAN JOSE DRAINAGE MASTER PLAN- SAN JOSE, CA   ...........Provided Hydraulic study of 1,800-acre watershed bounded by Guadalpe River, Montague Expressway, Coyote Creek, I-880, and US-101. Modeled watershed and existing storm drainage system (including a pump station) using the Visual SWMM model. Prepared alternative improvement projects for both the 10-year and 100-year levels of protection.   MAINE AVENUE IMPROVEMENTS - RICHMOND CA   ...........In this street rehabilitation project for the City of Richmond, we conducted field investigations of approximately 85,000 square feet of pavement, along with all existing utilities, curbs, gutters, and sidewalks. Evaluated alternatives to rehabilitate or replace the facilities. Designed a new storm drain system and a replacement for the deteriorated sanitary sewer system Prepared construction cost estimate for the improvements. (City of Richmond Department of Public Works).   HIGH CANAL FLOOD GATES AND PUMP STATION- CORTE MADERA, CA   ...........Hydrologic analysis of watershed using HEC-1. Hydraulic analysis of flood control channel using HEC-2 and design of pump station to eliminate flooding from 100-year event combined with high tides. Station includes four pumps for a total capacity of 83,750 gpm.   LAKE MERRITT OUTFALL CHANNEL   ..........Conducted surveys, mapping, and engineering studies of hydrology and hydraulics of the channel from Lake Merritt to the Oakland Inner Harbor. Evaluated the structural integrity of existing multicelled culverts under 10th and 12th Streets. Determined reasons lake cannot be lowered as quickly as desired and identified the most appropriate measures to attain the desired performance. Prepared plans, specifications and estimates for construction of the selected alternative. (Alameda County Public Works Agency).   LAKESHORE AND GRAND AVENUE DRAINAGE STUDY   ..........The 1,190-acre Lakeshore Avenue watershed and the 710-acre Grand Avenue watershed both drain into the north end of Lake Merritt. The lower reaches of both systems pass through neighborhood business districts, which have been flooded during major storm events in recent years. The first phase is to study each watershed's hydrology, inventory its existing systems, and study past flooding events. Based on this information, we performed hydraulic analyses to determine each system's capacity with respect to return period. Finally, system improvements were recommended to reduce the frequency of flooding. This included surveys, mapping, and engineering studies of hydrology and hydraulics in the Grand Avenue and Lake Shore Avenue area. (Alameda County Public Works Agency).   STEVENS CREEK TRAIL AND WILDLIFE CORRIDOR   ..........This project involved surveying, mapping, design and construction support services for a 3,700-foot trail and bike path along the bank of Stevens Creek. The project included an undercrossing of Route 101 and an 80-foot span half-through steel truss pedestrian bridge with cable rails. The 101 undercrossing consisted of four separate retaining walls including cantilever and tie-back and cast-in-drilled-hole pier walls. We conducted a detailed hydraulic analysis of the stream through the route 101 crossing, resulting in the design of channel and scour protection improvements at the crossing. (City of Mountain View Public Works Department).   CONFLUENCE POINT - GUADALUPE RIVER PARK   ..........We provided civil and structural design for the ranger station building, retaining walls, pedestrian/bicycle access ramps, and bridge across Los Gatos Creek. (City of San Jose Redevelopment Agency).   NEW HOGAN LAKE RECREATION AREA   .........This project included the preparation of plans, specifications, and estimate for roads, water supply, parking areas, and campgrounds for a recreational facility located in the Sierra Nevada foothills. The projects included upgraded roads and campsite spurs, new parking lots and picnic sites, new water distribution pipelines, and new group picnic shelters. (US Army Corps of Engineers).   RECREATION FACILITIES DESIGN   .........Prepared design documents for one new and one relocated softball field and construction of an announcer's booth with storage and refreshment stand on the first floor. (US Navy).   RICHARDSON PARK CONSTRUCTION   .........Developed designs for the reconstruction of a city park. The project included geometrics, paving, grading, drainage, and construction support. (Arbegast Newton and Griffith - Vallejo, CA).   RIVER STREET HISTORIC DISTRICT   .........The River Street Retail Enclave is made up of a number of historic buildings moved from the site of the Guadalupe River Flood Control Project. Designed grading, paving, storm drainage, sanitary sewer, and fire hydrant connection for the enclave. (City of San Jose).   PINOLE PINOLE BRIDGE NO. 6 REPLACEMENT   .........Lead firm for an HBRR bridge replacement project comprising preliminary engineering study, alternatives analysis, field survey, geotechnical and seismic analysis, bridge hydraulics, roadway geometrics, environmental studies, traffic staging, and complete PS&E for a 46-foot wide, 150-foot span bridge, with two lanes, one sidewalk, bicycle lanes, on cast-in-place prestressed concrete box girders built in staged construction. Provided full on-site resident inspection services.   FIBER OPTICS   .........A-N West, Inc. has prepared design drawings for the installation of over 175,000 linear feet of fiber optic communication lines throughout San Jose, Santa Clara, Mountain View, Sunnyvale, Milpitas, and Sausalito, California. We have helped to expedite the permit approval process by shortening the agencies' review time for such companies as Sun Microsystems, 3COM, Fujitsu, LSI Logic, NEC, MCI WorldCom, AT&T and TCI. (Silicon Valley and Marin County, CA). We have extensive experience and close personal relationships with state and local officials throughout the San Francisco Bay Area. These officials know and trust A-N West, Inc. This allows us to expedite your construction permits, so that you can get your cable in the ground and your clients connected in as little time as possible.