Stiver Engineering projects are making waves in the latest issue of Tunnel Business Magazine, including one project in Dallas, Texas, that is setting records for its sheer size. 

In total, seven Stiver projects were included in the pages of the magazine, highlighted by a cover story about the Mill Creek Drainage Relief Tunnel project in Dallas. The tunnel will bring needed infrastructure improvements and 100-year flood protection to areas of east and southeast Dallas that have been affected in recent years by severe storms. It will include 26,385 linear feet of tunneling at a 30-foot finished diameter.

According to Tunnel Business Magazine, work for the project will also require use of the largest hard rock tunnel boring machine (TBM) ever used in the United States—an 11.6-meter-diameter Robbins Main Beam TBM.

Stiver Engineering provided construction consulting services for the contractor prior to and during the tunnel construction. Our work included shoring designs for access shafts, the TBM starter/gripper wall design, shotcrete trolley system for lining the tunnel, several trench safety plan designs, a sound wall design using steel soldier piles and acoustic panels, and a removable shaft cover and rigging details for several liner plate shafts. 

The magazine also offered updates on the $142 million Schoharie Reservoir Project in Gilboa, New York. The project, which is expected to be complete in 2022, 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. Stiver Engineering was retained by the contractor to provide construction consulting through access shaft design, cofferdam design, tunnel design, pipe brake design, and pipe bulkhead design, among other services. 

Other featured Stiver projects include: 

  • The Integrated Pipeline Project in Athens, Texas
  • The DWU Elm Fork Water Main Project in Carrollton, Texas
  • The Trinity River Tunnel Integrated Pipeline Project in Kerens, Texas
  • The Bois D’Arc Treated Water Pipeline Segment E Tunnel Project in McKinney, Texas

Read more about the Mill Creek Drainage Relief Tunnel and other Stiver projects here: https://www.mydigitalpublication.com/publication/?i=709276

The state of Texas is undertaking a number of long-needed infrastructure improvements, and Stiver Engineering is leading the way.

The latest issue of Tunnel Business Magazine features five projects underway in Texas, and Stiver provided services on every one of them. The highlight is a cover story on the Mill Creek Drainage Relief Tunnel project in Dallas.

The tunnel will bring needed infrastructure improvements and 100-year flood protection to areas of east and southeast Dallas that have been affected in recent years by severe storms. Stiver Engineering provided construction consulting services for the contractor prior to and during the tunnel construction.

Other featured projects include the Integrated Pipeline/Trinity River Tunnel project in Kerens, Texas, which involves building 150 miles of pipeline to transport up to 350 million gallons water daily. Stiver Engineering performed full design work for the IPL tunnel, including concrete segmented tunnel design, trench safety plan designs, pipe buoyancy and support calculations, shoring designs for the entry and exit shafts and ground improvements using jet grouting among other services.

Stiver also performed tunnel design services along with the designs for the launch and receiving pits for the Bois D’Arc East Fork Trinity River Tunnel in McKinney, Texas; liner plate tunnel and bore pit/access shaft designs for the Athens Integrated Pipeline Project in Athens, Texas; and similar services for the DWU Elm Fork Water Main Project in Carrollton, Texas.

Read more about the Texas Stiver projects featured in Tunnel Business Magazine: https://www.mydigitalpublication.com/publication/?i=709276

Stiver Engineering is playing a crucial role in the transformation of Downtown Austin’s public park scene. 

Waterloo Greenway is an extraordinary public park project that will create 35 acres of connected green space from 15th Street to Lady Bird Lake. The first phase of the project, Waterloo Park and Moody Amphitheater, is scheduled to open in August. The project was recently featured in Commercial Property Executive. 

Stiver Engineering performed work that will help divert flood water flows from Waller Creek below 15th Street into Lady Bird Lake one mile downstream. This project consisted of a flood diversion inlet channel and tunnel to intercept the flood water. The tunnel is 50 feet below the surface and measures 22 feet in diameter and 5,500 feet in length.

Stiver Engineering delivered services for the intake structure and the tunnel along with the retaining walls and bridge at the park. Work rendered included shaft and tunnel design for the Waller Creek inlet, retaining wall design, bulkhead demolition plans, and designs for a pedestrian bridge foundation, roadway drainage, and an arc bridge abutment.

Read more about the project and how it will impact Austin: https://www.cpexecutive.com/post/top-projects-that-will-reshape-austin/

[Other source of info: https://waterloogreenway.org/overview/]

The latest scores are out, and infrastructure in the United States is making progress — but there’s still room to improve.

The American Society of Civil Engineers (ASCE) has published its latest Infrastructure Report Card, which examines 16 major categories detailing the country’s infrastructure needs and grades current conditions using a school report card format. The report, released every four years, is intended to highlight the importance of future investments to upgrade American’s aging infrastructure.

For the first time in 20 years, the report card has given U.S. infrastructure an overall grade higher than a D. It’s a C- this year, up from a D+ in 2017.

As the report notes, while improvements have been made, proactive, detailed, and efficient engineering is still needed, and Stiver Engineering is ready for the task. Our clients know they can count on our dependable, responsive service to ensure the best possible outcome for their projects. We do our best to use our talents for the betterment of our community and our country’s infrastructure.

ASCE, founded in 1852, is the country’s oldest national engineering organization and represents more than 150,000 civil engineers nationwide. Read more about ASCE’s 2021 Infrastructure Score Card: https://www.infrastructurereportcard.org/.

The outlook is good for Stiver Engineering this year.

Tunnel Business Magazine’s February issue features the publication’s annual “Tunneling Industry Outlook” for 2021. It contains interviews with key tunneling industry executives predicting potential trends in the year ahead. The issue also offers updates on a host of important tunnel projects around the globe, including eight Stiver projects either underway or completed in the U.S.

The highlight is the historic sanitary sewer improvement project in San Antonio, Texas. Stiver Engineering has played a key role in the sewer project, including pipe blocking and carrier pipe buoyancy calculations and design, steel casing design, and launch and exit shaft design.

Other featured Stiver projects include:

• The Schoharie Reservoir Low Level Outlet Project in Gilboa, New York

• The Integrated Pipeline Project in Athens, Texas

• The Jones Creek Interceptor and Mill Creek/Peaks Branch/State Thomas Drainage Relief Tunnel Projects in Dallas, Texas

• The Trinity River Tunnel Integrated Pipeline Project in Kerens, Texas

• The Bois D’Arc Treated Water Pipeline Segment E Tunnel Project in McKinney, Texas

• The W-6 Upper Segment Sewer Main Project in San Antonio

Click here to read Tunnel Business Magazine’s February issue.