Roeder Avenue Bridge Construction Administration

Roeder Avenue Bridge Construction Administration City of Bellingham

Central Avenue Improvements

Central Avenue Improvements City of Bellingham

Inspection, Load Rating and Bridge Rehabilitation

Inspection, Load Rating and Bridge Rehabilitation City of Bellingham

Old 99 (Riverside Drive) Improvements

Old 99 (Riverside Drive) Improvements Cities of Mount Vernon & Burlington

I-405 South Bellevue Design/Build Project

I-405 South Bellevue Design/Build Project WSDOT

Middle Fork Bridge Rehabilitation Construction

Middle Fork Bridge Rehabilitation and Construction Management, City of Bellingham

  • Sound Transit Lakewood Layover Yard

    Friday, 23 September 2011 00:00
  • Broadway Avenue Bridge Replacement

    Thursday, 22 September 2011 00:00
  • Roeder Avenue Bridge Construction Administration

    Thursday, 15 September 2011 06:46
  • Central Avenue Improvements

    Thursday, 15 September 2011 06:40
  • Inspection, Load Rating and Bridge Rehabilitation

    Thursday, 15 September 2011 04:29
  • Old 99 (Riverside Drive) Improvements

    Thursday, 15 September 2011 03:55
  • I-405 South Bellevue Design/Build Project

    Thursday, 15 September 2011 03:47
  • Middle Fork Bridge Rehabilitation Construction

    Thursday, 15 September 2011 03:22

108th Ave SE Bridge*

108th Ave. SE Bridge
City of Kent

TranTech staff, David Belling provided Construction Administration Management for a $2 million, 159-feet long, 7’6” deep by 59-feet wide post-tensioned concrete double box girder bridge crossing 274th Way on the east hill of Kent. An unusual feature of this bridge was to post-tension it transversely. Post-tensioning transversely helped us to reduce the number of webs, the weight and thus the construction cost. Also included in the project, were two Washington State standard reinforced concrete retaining walls, one on the northwest and the other on the east side of the bridge. The wall, on the northeast side of that bridge, was specifically required for an east/west bike trail paralleling 274th Way. 10’6”-wide sidewalks and 9-feet high mesh fencing were also constructed on either side of the bridge. The extra wide sidewalks and the wire mesh screens were due in part to the proximity of a school located within a quarter mile of the structure.

 
Services

TranTech Bridge Projects Requiring Overcrossing BNSF Railway Tracks

Structural Engineering:
TranTech's structural engineering group provides comprehensive services for structural design of bridges; highways and other industrial facilities. We also provide services in the areas of seismic retrofit, structural condition inspection and load rating of bridges.

Civil Engineering:
TranTech’s civil engineers provide comprehensive services for roadway design; drainage & stormwater treatment; traffic signals and illumination design.

Construction Management:
TranTech’s construction administration team provides services in the areas of contract administration, construction inspection and materials testing coordination and management, resident engineering, contractor work coordination.