| | DATES | METHOD | DESCRIPTION | OWNER |
| tbi0602 | 2006 | EPB | Brightwater Conveyance System - East Contract C53060C, King County, Washington
Construction of approximately 14,000 lf of 16'-8" ID tunnel | King County Wastewater Treatment Division |
| tbi0501 | 2005 | | San Vicente to Second Aqueduct Pipeline Project, San Diego, California
11-mile water conveyance. | San Diego County Water Authority, San Diego, California |
| tbi0402 | 2004 | EPB | LAMTA C0800 Metro Gold Line, Eastside Extension Project, Los Angeles, California
Construction of twin subway tunnels, 7500 lf long, will be excavated with two new 256" (21 ft) EPB tunnel machines in alluvial geology. | Metropolitan Transit Authority, Lost Angeles, California |
| tbi0306 | 2004 | EPB | Big Walnut Creek Augmentation/Rickenbacker Interceptor
Franklin County, OH
Joint Venture: JayDee Contractors, Inc./Michels Pipeline Construction/Traylor Bros., Inc.
| City of Columbus, Department of Public Utilities |
| tbi0202 | 2002 | EPB | NORTHEAST INTERCEPTOR SEWER (NEIS)
Los Angeles, CA Contract: W. O. #SZC11141, | City of Los Angeles, Board of Public Works, |
| tbi0201 | 2001 | | Subcontr. Spec # 1437, Arrowhead Tunnel, Traylor Shea Ghazi Joint Venture, San Bernardino, CA. Manufacture and install precast concrete tunnel segments. | Shea Kenny Joint Venture, Palmdale, CA |
| tbi0005 | 2000
| EPB | Contract NOS-ECIS W.O. E2001433, North Outfall Sewer Ø East Central Interceptor, City of Los Angeles, Dept. of Public Works61000 ft x 16 ft dia EPB sewer tunnel | City of Los Angeles Board of Public Works |
| tbi0003 | 2000
| TBM | Contr. 77-235-BF, Thornton Transitional Reservoir, Chicago, IL. 10000 ft x 21ft & 8 ft dia rock tunnelOwner (std all) | Metropolitan Water Reclamation District of Greater Chicago |
| tbi9905 | 1999
| TBM | Project #184, Mill Bull Tunnel, Pollock Pines, CA10000 ft x 9 ft dia rock power & irrigation tunnel | El Dorado Irrigation District |
| tbi9901 | 1999
| TBM | Contr. PC-709, Detroit River Outfall No. 2 (DRO-2)10000 ft x 21 ft dia rock outfall tunnel | City of Detroit Water & Sewerage |
| tbi9804 | 1996
| TBM | Contr. 6055, #2 & 3A, MetroWest Water Supply Tunnel, Framingham, MA. 67000 ft x 14 ft dia x 300 ft deep rock water tunnel | MA Water Resources AuthCharlestown Navy Yard |
| tbi9504 | 1995-1999 | EPB | Contr. 2, South Bay Ocean Outfall, San Diego, CA19000 ft x 100 ft dia x 200 ftr deep EPB under-ocean outfall tunnel | City of San Diego |
| tbi9501 | 1994-1999 | TBM | Contr. C0311, Metro Red Line North Hollywood Tunnel Line Section, St. 630+00 to Universal City, CA. 25000 ft rock subway tunnel | Los Angeles Co. Metro. Trans. Authority |
| tbi9305 | 1993-1996 | | Contract: C50998/93-14 Pipline Reach, Devil's Den to Cholame Vally, Coastal Branch Phase II Kern & San Luis Obispo Co., CA. 870,000 cy exc., backfill, 830 If reinf. concr pipe,17,000 If 48" 8 66,100 If 57" inside diam buried steel pipe, clearing, grubbing, dewatering, piping access structures | CA Dept/Water Resources |
| tbi9303 | 1993-1997 | TBM | Contr. 93-0561B/WC0500, Westside Corridor Project, Line Sec. 5A, Westside LRT Tunnel, Portland, OR. 30000 ft rock subway tunnel | Tri-County Metro. Transp. District of Oregon |
| tbi9202 | 1992-1994 | D&S | Contr. 21718, Silver Cliff Tunnel, Bridge #38005, Hwy. 61, Lake Co., MN. 1300 ft 4 lane highway tunnel in rock | MN Dept. of Transportation |
| tbi9208 | 1992-1995 | EPB | Contr. 21635-C-03, St. Clair River Tunnel, Sarnia, Ontario, Canada6600 ft x 31 ft dia EPB rail tunnel under Detroit R. | Canadian National RailroadMontreal, Quebec, Canada |
| tbi9201 | 1992-1993 | TBM | Two contracts, Super-conducting Super ColliderS40 - S55, Ellis Co., TX. 52000 x 14 ft dia electron beam tunnel | Dept. of Energy c/o The PB/MK Team |
| tb9107 | 1991-1993 | TBM | Spec. #421, Cowles Mountain Tunnel, Phase I, San Diego, CA. 7000 ft x 11 ft dia rock tunnel | San Diego Co. Water Auth. |
| tbi9007 | 1990-1993 | D&S | FAP No. I-H3-1(60), Trans-Koolau Highway Tunnel Project, Haiku approach & tunnels, Route IH-3, Oahu, Hawaii. 7000 ft 2 lane highway tunnel in rock | Hawaii Dept. of Transp.Highways Division |
| tbi8920 | 1989-1991 | | Contract: I36G55 Sewer tunnel, North Shore Interceptor, Phase IVA, NS-6 Milwaukee, WI. Construction of dropshaft & ancillary facilities | Milwaukee Metro Sewwer Sidt |
| tbi8914 | 1989-1993 | MES | W.O. EXX 31392, North Outfall Replacement Sewer, Los Angeles, CA46000 ft x 17 ft dia sewer tunnel in sand | City of Los Angeles Dept. of Public Works |
| tbi8912 | 1989-1992 | D&S | Proj. ID 70-2(139), Hanging Lake Tunnels, Glenwood Canyon, Colorado. 7000 ft 2 lane highway tunnel in rock | Colorado Dept. of Transp |
| tbi8715 | 1986-1992 | TBM | Contract I36G63/I36G59, North Shore Interceptor, Phase IA, Milwaukee, WI. Dropshafts, air vent shafts, deaeration
chambers, connecting tunnels, & associated
surface facilities | Milwaukee Metro Sewer Distr |
| tbi8622 | 1986-1988 | TBM | Contract 5102-3, Muck Valley Hydroelectric Project, Tunnel & diversion works, Nubieber, California. 22000 ft of rock hydroelectric tunnel and diversion structure | Malacha Hydro Ltd. Prtnrshp |
| tbi8603 | 1986-1992 | TBM | Contract I36G11, North Shore Interceptor, Phase IA, Milwaukee, WI. 28000 ft x 30 ft dia rock tunnel | Milwaukee Metro Sewer Distr |
| tbi8514 | 1985-1987 | | Contract 1E0061 Greenbelt Line cut & cover box & line Hyattsville, MD. Cut & cover box & line, 2,800 If double box structure & line | Washington Metropolitan Area Transit Authority |
| tbi8503 | 1985-1985 | | Contract: I264-1(80) Watterson Expwy draingage,Louisville, KY. 5,000 If various size rock tunnels, pipe lining | Kentucky Dept. of Highways |
| tbi8505 | 1985-1988 | TBM | Contract SAE 1023, South Interceptor, Section 4.1, Montreal, Quebec. 20000 ft x 10 ft dia rock sewer tunnel | Montreal Urban Community Montreal, Quebec, Canada |
| tbi8406 | 1984-1987 | MCA | Contracts 105 & 106A, Singapore Subway Tunnels, Singapore12000 ft comp air subway tunnel & Orchard Rd Station | Mass Rapid Transit CorpSingapore |
| tbi8311 | 1983-1985 | MCA | Contract C30486, West Interceptor tunnel, Anchorage, Alaska. 6000 ft x 9 ft dia comp air sewer tunnel | Municipality of Anchorage Anchorage, Alaska |
| tbi8303 | 1983-1984 | MES | Contract R-13998, Division St. storm sewer, Vanderburgh County, Indiana. 3000 ft x 8 ft dia sewer tunnel in sand | Indiana Dept. of Highways |
| tbi8201 | 1982-1985 | TBM | Contr 2-07-40-C2035, Stillwater Tnl Completion, Strawberry Aqdct, Bonneville Unit, Cntrl UT Proj, Duchesne, UT. 29000 x 10 ft dia rock water tunnel | US Bureau of Reclamation |
| tbi7901 | 1979-1981 | TBM | Contract 1C0011, Ferry Street Subway Tunnels, Buffalo, NY. 21000 ft rock subway tunnel | Niagara Frontier Transportation Authortity Buffalo, NY |
| tbi7802 | 1977-1981 | TBM | Contract 363-IAB, Scajaquada Tunnel Interceptor, Buffalo, New York. 27000 x 10 ft dia rock sewer tunnel | Buffalo Sewer Authority |
| tbi7703 | 1977-1982 | TBM | Contract 73-287-2H, Calumet System, Chicago, Illinois. 48000 x 21 ft dia rock storage tunnel | Metropolitan Sanitary Distr of Greater Chicago |
| tbi7601 | 1976-1979 | MES | Section G01, Addison Route, Washington, DC. 7000 ft of subway tunnel in soil under Benning Rd. | Washington Metropolitan Area Transit Authority |
| tbi7205 | 1972-1977 | MES | Sections D-4a and F-2a, Washington, DC17000 ft of subway tunnel in wet soil, into Le'Enfant Plaza Station | Washington Metropolitan Area Transit Authority |
| tbi7204 | 1972-1974 | MCA | PCI-14 Interceptor, Detroit, Michigan. 11000ft x 14 ft dia comp air sewer tunnel | Detroit Metro Water Dept. |
| tbi7702 | 1977-1980 | MCA | Contract NW-02-05, Lexington Market Line Subway, Baltimore, MD3200 ft comp air subway tunnel: 1st U.S. use of gasketed one pass concrete liners. | Mass Transit Administration |
| tbi7008 | 1970-1973 | MCA | PCI-12a Interceptor, Detroit, Michigan22000 ft x 14 ft dia comp air sewer tunnel | Detroit Metro Water Dept. |
| tbi7008 | 1970-1971 | MCA | PCI-9 Interceptor, Detroit, Michigan. 18000 ft x 12 ft dia sewer tunnel in soil | Detroit Metro Water Dept. |
| tbi6906 | 1969-1970 | HS | Contract No. 2, Harrison St. Trunk Sewer, Syracuse, New York. 1500 ft separation of mixed sewage flow into two underground conduits | Metro Syracuse Treatment Plant District |
| tbi6706 | 1967-1969 | MCA | Contract lM0011, Subway tunnel, San Francisco, CA. 7000 ft of compressed air subway tunnel | Bay Area Rapid Transit District San Francisco, CA |
| tbi6608 | 1966 - 1968 | D&S | PA-14 & PA-15, Sewers in tunnel, St. Louis, MO. 22000 ft x 10 ft horseshoe sewer tunnel in rock | Metro St. Louis Sewer Distr |
| tbi6507 | 1965-1966 | MES | Synchrotron Laboratory Tunnel, Cornell University, Ithaca, New York. 3000 ft beam collider tunnel and underground labs | Cornell University Ithaca, New York |
| tbi6309 | 1962-1967 | MCA | Contracts 62-7, 64-5, 66-7, Interceptors, Seattle, WA. 35000 ft x 10 ft dia sewer tunnel in soil | Municipality of Metropolitan Seattle |
| tbi6102 | 1961-1963 | HSCA | Contract C-214, Interceptor, Boston, Massachusetts. 3500 ft x 10 ft dia comp air sewer tunnel | Metropolitan District Comm |
| tbi6017 | 1960 | MES | Contract 169, Sewer tunnel, Milwaukee, Wisconsin. 4000 ft x 23 ft diaÆ sewer tunnel in soil | Metropolitan Sewerage Comm., Milwaukee County, WI |
| tbi5818 | 1958 | | Interceptor Sewer, Evansville, IN. 3,600 If x42" R.C. pipe & 3,800 If smaller pipe in sand tunnel, interceptor | Evansville Water Department |
| tbi5815 | 1958 | HS | Sections C, E,Æ F & G, sewer tunnels, Louisville, Kentucky. 17000 ft x 8 ft horseshoe sewer tunnel in sand | Louisville & Jefferson County Metro Sewer District Louisville, Kentucky |
| tbi5516 | 1955 | HS | Sections A & B, interceptor sewer tunnel, Indianapolis, Indiana. 16000 ft sewer tunnel in soil | Indianapolis Sanitary Distr Indianapolis, IN |
| tbi5408 | 1954 | | First Ave. South Interceoptor Sewer repairs, Nashville, TN. Storm sewer repairs, tunnel in rock | Water Board |
| tbi5011 | 1950 | | Louisville Flood Control, Section A Part 2, Louisville, KY. 4,000 If x 8' diam. horseshoe R.C. tunnel in sand | U.S. Army Corps of Engrs |
Projects 
