Bridge Instrumentation Products Manufactured and Installed:

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2021 Michigan Department of Transportation BM-20, FLT-3 Sensors, Tobacco River 

2020 Colorado Department of Transportation BM-20, TLT-3 Cloud Server, Dolores River near Grand Junction, CO

2020 National Park Service BM-20, TLT-3, FLT-3 Cloud Server, Yosemite NP, El Capitan Bridge, CA

2020 National Park Service BM-20, TLT-3 Sequoia NP, Kings Canyon Bridges, Upgrade to Cloud Server, CA

2018 National Park Service BM-20, TLT-3 Fort Laramie Recreation, QY

2018 Connecticut Department of Transportation BM-20, AS-3, TLT-3 Commodore Hull Bridge, CT

2017 New Jersey Turnpike Authority BM-20, AS-3, TLT-3 Mullica River, NJ

2017 Maryland Department of Transportation BM-20, AS-3, TLT-3 Choptank River, MD

2016 Granite Construction FLT-3, TLT-3, Grand Avenue Bridge Glenwood Springs, CO

2016 New York Department of Transportation AS-4, TLT-4, Loop Parkway over Long Creek eleven piers with  tilt and  sonar

2016 New York Department of Transportation AS-4, TLT-4, Meadowbrook Parkway, Fundy Channel piers with  tilt and  sonar

2016 New York Department of Transportation AS-4, TLT-4, Meadowbrook Parkway, False Channel  piers with  tilt and  sonar

20165 New York Department of Transportation AS-4, TLT-4, Meadowbrook Sloop Channel twenty-eight  piers with  tilt and  sonar

2016 New York Department of Transportation AS-4, TLT-4, Robert Moses Causeway over State Boat Channel SB & NB,  piers with  tilt and  sonar

2016 New York Department of Transportation AS-4, TLT-4, Robert Moses Causeway over Fire Island teen  piers with  tilt and  sonar

2015 Electro Ferro AS-1  sonar sensor for installation by customer in Peru

2015 Michael Baker Co. Anchorage, Alaska AS-4  bridges,  sonars

2014 North Caroline Department of Transportation AS-3 Bonner Bridge  sonars

2013 Minnesota Department of Transportation AS-3,FLT-3, TLT-3 Bridge over I-90 Mississippi River  tilt,  sonar,  float-outs

2013 NY Department of Transportation SMC-3 Bridge over Schoharie Creek,  Sliding Collars

2013 Clemson University TDR-3 Time Domain Reflectometer

2013 Rhode Island Department of Transportation AS-3. Upgrade of Verazano bridge (will be returned to operation in Spring 2013)

2013 Minnesota Department of Transportation FO-3.  float-out sensors,  tilt sensors, sonar sensor

2013 Connecticut Department of Transportation  sonar sensors installed on the Mystic River Bridge in Mystic, CT

2012 Idaho Department of Transportation AS-3.  sonar sensors installed on the Kootenai River near Bonner’s Ferry

2012 Kings Canyon National Park Tilt-3. Eight tilt sensors,  stage sensors installed on  bridges in the National Park - uses Iridium  Satellite Services for displaying graphical and tabular data on Internet website

2012 New Jersey Department of Transportation AS_3. Eight sonar sensors, stage sensor installed on Bass River Bridge on the New Jersey Turnpike

2012 Florida State A&M  sonar sensor

2012 Massachusetts Department of Transportation AS-3/SMC-3.  sonar sensors,  sliding magnetic collars, stage sensor installed on Duck bridge over the Merrimack River

2012 University of Hawaii SMC-3.  sliding magnetic collar sensors

2011 Eymaq, Inc. AS-1.  sonar sensor configured for installation for customer in Peru

2011 Minnesota Department of Transportation FO-3.  float-out sensors,  tethered buried switches, stage sensor installed on bridge 7100

2011 Minnesota Department of Transportation AS-3/Tilt-3.  sonar sensors,  tilt sensors, stage sensor installed on bridge 5900

2011 California Department of Transportation Tilt-3.  tilt sensors,  stage sensor for Greenwood Creek bridge

2011 Clemson University Provided developmental software for sonar sensors

2011 California Department of Transportation Tilt-3.  tilt sensors on the Feather River Bridge

2011 Alaska Department of Transportation AS-3. Software upgrade to existing system

2011 New York Department of Transportation AS-3.  sonar sensors and a stage sensor for Loop Parkway bridge on Long Island

2011 Minnesota Department of Transportation FLT-3.  buried float-out sensors

2010 New York Department of Transportation AS-3. Upgraded sonar sensors on 13 piers on Fire Island bridge

2010 Illinois Department of Transportation FLT-3 Float-out system, 6 FO sensors (on  adjacent bridges), digital cellular internet access, email notifications

2010 Larimer County (Colorado), Shields Street Bridge Tilt-3 tilt sensor system, 4 tilt sensors and 4 tethered buried switches, email notifications and internet access

2009 Michigan Department of Transportation Mobile W ireless Streambed Profiler (truck-mounted),  guided tethered floatation sonar

2009 California Department of
Transportation (San Gabriel) Tilt-3 tilt sensor, 4 tilt sensors and stream  stage

2009 University of Hawaii AS-3 sonar system, 3 bridges, each bridge with 2 sonars and a stream  stage monitor, digital cellular modem  internet access

2008 California Department of
Transportation (W hite W ater Bridge) Tilt-3 tilt sensor system, 14 tilt sensors, 4 wireless remotes, digital cellular modem

2008 New York City Department of Transportation (W illis Avenue Bridge) AS-4 Sonar and stream  stage monitor, 18 sonars and a stream stage monitor, digital cellular modem, internet access

2007 Alaska Department of Transportation FLT-3 Float-out, 24 FO sensors and a stream  stage monitor, ORBCOM satellite data communications

2007 California Department of
Transportation (Greenwood) TLT-4 tilt sensor, wireless data link, landline data acquisition

2006 Clark County Public W orks AS-3 Scour Tracker, active sonar, landline data acquisition

2006 USGS - Alaska AS-3 Scour Tracker, active sonar, Orbcomm  satellite

2005 California Department of
Transportation, Biggs Bridge TLT-4 tilt sensor, wireless data link, landline data acquisition

2005 USGS - Alaska AS-3 Scour Tracker, active sonar, Orbcomm  satellite (3 each)

2004 USGS - Alaska Tanana River sonar winch deployment system

2003 Maricopa County Arizona Flt-3 float outs with Alert and cellular telemetry (37 float-outs)

2003 US Geological Survey Alaska AS-1 sonars data link to Sutron (2 systems)

2002 Alaska Department of Transportation AS-3 sonars with satellite communications ( systems)

2001 Alaska Department of Transportation AS-3/PF-3 sonar and piezoelectric film  sensors with satellite communications

2001 Alabama Department of Transportation TLT-3 bridge tilt measuring systems with  tilts and cellular teleph communications ( systems)

2001 Hawaii Department of Transportation SMC-3 Sliding Magnetic Collar ( collars)

2001 Hawaii Department of Transportation AS-3 sonar ( sonars)

2001 W isconsin Department of Transportation SMC-1 sliding magnetic collar

2001 California Department of Transportation SMC-3 sliding magnetic collar ( collars)

2001 California Department of Transportation TLT-4 bridge tilt measuring system  with eight tilt sensors and wireless communications

2000 Alabama Department of Transportation AS-3 sonars with  float-out sensors ( systems)

2000 US Geological Survey Alaska AS-2 sonars,  systems (upgraded to satellite communications in 2001)

2000 California Department of Transportation SMC-4 sliding magnetic collar ( collars), eight tilt sensors, and 32 float-out sensors

2000 California Department of Transportation SMC-3 sliding magnetic collar with  collar and  bridge  tilt sensor

2000 New York Department of Transportation AS-4 sonar (13 piers instrumented) with landline communications

1999 Rutgers State University of New Jersey  bridges instrumented; each includes an AS-3 sonar and SMC-3 Sliding Magnetic Collar

1999 Rhode Island Department of Transportation SMC-3 sonar, remote cellular data telecommunications

1999 Alabama Department of Transportation FLT-3  Buried Float-out Transmitter, digitized voice telecommunications over cellular teleph

1999 California Department of Transportation Instrumented eight bridges with bridge tilt sensors, buried float- out transmitters, stream  stage monitors, remote cellular data telecommunications

1999 Virginia Department of
Transportation, W oodrow W ilson Bridge AS-4 sonar,  piers with wireless data link, land-line data and digitized voice telecommunications

1999 Virginia Department of
Transportation, W oodrow W ilson Bridge  stream  velocity and direction sensors installed and incorporated with scour monitoring system

1998 California Department of Transportation Instrumented  bridges with SMC-3 sliding magnetic collar, AS- 3 sonar, Brisco, and buried float-out transmitters, remote cellular, GOES satellite, and land-line data telecommunications

1998 New York Department of Transportation Instrumented  bridges on Long Island with AS-4 sonar, stage sensors, wireless data link, and remote cellular data and digitized voice communications. Instrumented 10 piers with sonar and wireless data links on  bridge; instrumented  piers with sonar and wireless data links on the other.

1998 City of Phoenix, AZ AS-3 sonar, stage sensor, land-line data communications

1998 Arizona Department of Transportation Instrumented  bridges with AS-3 sonar and buried float-out transmitters, cellular data communications

1997 Nevada Department of Transportation Instrumented  bridges with AS-3 sonar and buried float-out transmitters

1997 Purdue University Combined SMC and Sonar

1997 US Geological Survey, Oregon PF-1 Piezoelectric Film

1997 Aetek Company, (for Korea) AS-2 sonar

1997 R.M.Harris Company, California AS-3 with FLT-3 (12 floatouts)

1996 Maine Department of Transportation SMC-1 Sliding Magnetic Collar

1996 Granite Construction, Nevada PF-2 Piezoelectric film

1996 Oakgrove Construction, New York SMC-1 Sliding Magnetic Collar

1996 US Geological Survey, Oregon FLT-1 Buried Floatouts

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