Industrial / Institutional / Public Works Engineering
We have significant institutional engineering project experience ranging from bridges, railways, levees, flood control, water works and roadway projects to facilities improvements, equipment installations, as well as most structural aspects of industrial buildings. Extensive expertise in steel, concrete and timber construction, from forms and structures to earth retaining and floodwall structures.
We have worked with major international firms on some of the most complex and challenging projects as the project lead, for smaller projects, or in a supporting role on larger projects.
Your full satisfaction is guaranteed by using our expertise and experience to successfully complete projects of any scope or size. Contact us for a free consultation.
Industrial / Institutional / Public Works Project Gallery
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Earthquake risk assessment and analysis for 150' x 50' partially underground enclosed concrete structure housing major control and switching equipment for the BART Hayward system. Roof of structure serves as a station, and supports double track for trains running both directions. Worked as project engineer for BRG Engineering, a bridge and rail structure specialist.
Work was performed with colleague Dr. Fang Li, an expert in advanced computer modeling and the seismic retrofit design of large bridges. The structure is critical to the operations of the BART system, and so the ability of the structure to be functional after a prescribed level of ground motion during predicted seismic events was critical. Underground structures present unique challenges when subjected to motion caused by seismic activity. The structure was analyzed, deficiencies were located and types of failures were predicted, and strengthening measures were designed.
Bridge over Lake Natoma, in the town of Folsom, CA, referred to as the "Folsom Bridge". Some unique features of this structure were the utilization of light-weight concrete in the superstructure, and the addition of the purely decorative, non-structural arches seen in the photo. Columns in the lake bed extend 30 ft. into solid granite. Responsibilities for this project were the analysis and design of the north support columns, shown in subsequent photo.
View of columns at the north span. The columns shown in the photo are supported by cast-in-drilled-hole piles up to 35 ft. in depth, and were designed to support in excess of 3,000 kips (3,000,000 lbs.) each. Columns varied in heights from 14 ft. to 30 ft.
Ritschard Dam, with access road. Worked as on-site engineer with oversight of construction activities, engagecd with a large multi-national engineering firm.
Emergency overflow spillway at Ritschard Dam, with access road. Worked as on-site engineer with oversight of construction activities, engaged with a large multi-national engineering firm. The concrete structure picture is founded in loose to cemented shales, and is located to the west of the dam.
Emergency overflow spillway at Ritschard Dam, with access road. Worked as on-site engineer with oversight of construction activities, engaged with a large multi-national engineering firm. The concrete structure picture is founded in loose to cemented shales, and is located to the west of the dam.
Stockton Area Flood Control Project
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Rail trestle analyzed as part of Stockton area flood control project. Original construction of this bridge was in the 1920s. Another bridge to the north was being raised due to levee improvements, so the track level on the bridge in the photo was required to be raised. The structure was analyzed to verify its' ability to handle significant rail traffic with the added ballast required to raise the track.
Rail structure in Stockton CA. The track over this existing structure was required to be elevated as part of a levee improvement project. This pre-stressed solid box girder bridge was analyzed to verify it would be able to support the improvements required. A side guard was designed to retain the additional ballast required to raise the track. The improvements were designed to be constructed by the Union Pacific Railroad (UPRR) Company. Imperative in this design was that construction of the improvements would not risk damage to the pre-stress tendons, which could have required replacement of entire sections, should damage occur.
View of flood wall with bridge in background. Part of a major flood control project in Stockton, CA. To save costs and valuable land that would be lost to additional levee embankment required to raise the levees, short floodwalls from 1 ft. to 3 ft. high were designed, to be installed on the existing levees. These walls were installed throughout the Stockton area- approximately 20 miles of these floodwalls were constructed. In the background, a bridge, also part of the flood control project, was modified so that flood waters could not overtop the bridge and flow out & down the roadways at either end of the bridge.
Another view of the Union Pacific Rail Road (UPRR) track raising project.
Southern Pacific Railroad Bridge (SPRR) deck structure replacement. The original bridge, constructed in the 1920s, had to be raised to accommodate levees being raised at either side of the channel. The original piers were reused and new superstructure segments were designed to utilize these piers. The challenge of this project was that the construction, which included demolition of the existing components and installation of the new structure, was required be the done in a 24 hr. window. This section of track carries 20 to 25 major freight trains a day, and there were no viable alternative routes for the rail traffic. Provided complete analysis and design of the bridge improvements and site work around the bridge. Work performed per SPRR specifications, to be construction by rail crews.
Another view of the SPRR superstructure replacement project.
Small dam and gates for flood control project. The dam and gate system prevents backflow from the main channel during flood event. Incorporates (2) 48" manually operated valves in the culverts shown in photo.
Typical bridge, of 23 total, analyzed and engineered as part of Stockton, CA flood control project. Solid Type-K bridge barriers were added to many of the structures, with retaining walls extending to the levees at the four corners. The purpose was to increase the maximum overtopping elevation of the channels through bridge areas. Bridges had to be analyzed in some cases for the added weight of the barriers. The barriers were required in some cases to be attached to the sides of the bridges, due to lane width requirements.
Another of the 23 bridges.
Another of the 23 bridges.
