Silver Creek Cliff Highway Tunnel
![](https://storage2.snappages.site/tlcwlsb1r1/assets/images/9825981_1124x869_500.jpg)
Federal Highway Administration
- 2002 Excellence in Highway Design Awards
- The Rural Highways Merit Award
River Center Connection Tunnel
![](https://storage2.snappages.site/tlcwlsb1r1/assets/images/9825986_1280x960_500.jpg)
- Saint Paul Heritage Preservation Commission and Saint Paul Chapter of the American Institution of Architects Award
- Minnesota Society of Professional Engineers Award
Minnesota Library Access Center (MLAC)
![](https://storage2.snappages.site/tlcwlsb1r1/assets/images/9825996_2500x1666_500.jpg)
Consulting Engineers Council of Minnesota
- 1999 Grand Award for Precast Cavern Wall System at the U of MN
American Consulting Engineers Council
- Engineering Excellence Honor Award, 1999 for Arched Precast Walls Speed Library Cavern
PCI (Precast/Prestressed Concrete Institute)
- Design Award 1999
- Harry H. Edwards Industry Advancement Award 1999
Minnesota Society of Professional Engineers
- Seven Wonders of Engineering Award 1999
MINOS Far Detector Laboratory
![](https://storage2.snappages.site/tlcwlsb1r1/assets/images/9826001_1280x960_500.jpg)
- Minnesota Society of Professional Engineers Award