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We offer rapid delivery designs for tunnel access and rescue shafts, subterranean and subsea structures, and more.
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The Integrated Pipeline is a $48.5 million joint water supply project between Dallas Water Utilities and Tarrant Regional Water District. It involves building 150 miles of pipeline to transport up to 350 million gallons water daily from three East Texas Reservoirs into the Metroplex to increase reliable water access. Crews are installing 4,400 linear feet […]
LEARN MORE ABOUT Integrated Pipeline (IPL) Project – Section 17 Trinity River Tunnel
A contractor in Downtown Houston, Texas approached Stiver Engineering and requested our assistance in the construction of a pedestrian tunnel connecting the Heritage Plaza skyscraper to a proposed parking garage across the intersection of Dallas St. and Bagby St. We provided construction consulting by designing the shoring system for the excavation beneath the designated intersection […]
LEARN MORE ABOUT Heritage Plaza Pedestrian Tunnel Project
The purpose of the Luce Bayou Interbasin Transfer Project is to provide additional surface water supplies to end users that utilize water from Lake Houston. Additional surface water supplies will be transferred from the Trinity River to Lake Houston via the Luce Bayou Interbasin Transfer Project to meet the increased demand for surface water. There […]
LEARN MORE ABOUT Luce Bayou Interbasin Transfer Project – Capers Ridge Pump Station
The $142 million Schoharie Reservoir Project in Gilboa, New York – which is expected to be complete in the year 2020 – includes the construction of an intake structure at the bottom of Schoharie Reservoir, more than 2,000 feet of subsurface tunnels, and a valve chamber along Schoharie Creek. Once completed, the tunnel and valves […]
LEARN MORE ABOUT New York Environmental Protection Bureau of Engineering Design & Construction
One of our clients in Houston, Texas came to us with a specific request: install large caissons without steel reinforcing in order to avoid interference with the products being tested within the structures. We provided the client with multiple caisson designs that utilized fiberglass-reinforced concrete. We designed these structures to be poured in lifts and […]
LEARN MORE ABOUT Private Subsea Product Testing Facility
A client requested construction consulting assistance in the installation of supply and return piping beneath Memorial Circle on Texas Tech University’s campus in Lubbock, Texas. Stiver Engineering designed a shoring system using soldier piles, steel plates, timber lagging, a wale set, and cross struts. We also designed three concrete vaults and the steel pipe support […]
LEARN MORE ABOUT Texas Tech University – Memorial Circle Tunnel Replacement
Due to a number of issues, there was a 1.1-mile gap in the Trail at Lady Bird Lake in Austin, Texas. Along this gap, visitors had to divert onto the narrow sidewalk and travel along busy Riverside Drive, crossing six lanes of I-35 access roads to travel east or west and use the south side […]
LEARN MORE ABOUT The Boardwalk Trail at Lady Bird Lake
The Waterloo Park project, Austin, Texas, specified that the flood waters stretching from Waterloo Park to Lady Bird Lake be diverted 70 feet below ground through a concrete shaft and tunnel to be discharged into Lady Bird Lake 1 mile downstream. The project removed an estimated 50 acres from the floodplain in Downtown Austin. Stiver […]
LEARN MORE ABOUT Waller Creek – Waterloo Park Project
Stiver Engineering provided construction consulting by designing the shoring system for the excavation beneath 12th Street on the UTMB Campus in Galveston, Texas. The shoring system was designed using cantilevered soldier piles in the sandy soils by pinning the base of the soldier piles with a timber member or steel pipe cross strut.
LEARN MORE ABOUT UTMB Infrastructure – Ike Recovery Project
One of our clients had to install a force main on piles at a depth of 12-feet below Charleston Bay. The project is located on the South side of Plum Island in the Ashley River Basin in Charleston, South Carolina. Stiver Engineering was retained to provide construction consulting services to design a shoring system for […]
LEARN MORE ABOUT West Ashley Sewer Tunnel and Influent Pump Station
The Mill Creek Drainage Relief Tunnel is a construction project that will bring needed infrastructure improvement to east Dallas, Texas. It will include 26,385 linear feet of tunneling at a 30-foot finished diameter with eight intake shafts and six lateral tunnels excavated by roadheader or excavators/breakers. The tunnel is being driven through Austin chalk by […]
LEARN MORE ABOUT Mill Creek Drainage Relief Tunnel Project
The City of Houston’s Northeast Water Purification Plant (NEWPP) Expansion Project is a design-build project that will add 320 million gallons per day (mgd) by 2024 to the existing water plant’s capacity. The expansion project will allow the City and the regional water authorities to meet projected demands, while fulfilling requirements set by the Harris-Galveston […]
LEARN MORE ABOUT Northeast Water Purification Plant Expansion Project
To help secure the Baltimore, Maryland City’s water supply, the Baltimore City Department of Public Works is covering a considerable portion of Druid Lake and installing two large underground water tanks. Druid Lake holds filtered and treated water that is ready to be sent to consumers. To protect this drinking water supply, two covered storage […]
LEARN MORE ABOUT Druid Lake Excavation & Shoring Project
The DigIndy Project is a nearly 28-mile long network of 18 foot diameter deep rock tunnels being built 250-feet beneath the city. Beginning near the Indiana State Fairgrounds on the north, and ending on the south side of Indianapolis, DigIndy will be the largest public works project in the city’s history. The tunnel system will […]
LEARN MORE ABOUT Indianapolis Deep Rock Tunnel Connector Pump Station