Span Length

45′ 67′ 89′ 111′ 133′ 155′ 177′ Span Length DBT35 x 5' 45′ - 100′ DBT35 x 8' 45′ - 80′ DBT36 x 5' 45′ - 100′ DBT36 x 8' 45′ - 80′ DBT41 x 5' 55′ - 110′ DBT41 x 8' 55′ - 90′ DBT45 x 5' 65′ - 120′ DBT45 x 8' 65′ - 90′ DBT53 x 5' 85′ - 145′ DBT53 x 8' 85′ - 110′ DBT60 x 5' 85′ - 155′ DBT60 x 8' 85′ - 125′ DBT65 x 5' 105′ - 170′ DBT65 x 8' 105′ - 140′

Section Properties (gross)

*Lengths based on HL-93 Live Load, 2” Wearing Surface, 100 PLF Rail Load.  Confirm span length for DBT w/ Knife River

Product Name Depth (in) Area (in2) Yb (in4) Ixx (in4) Iyy (in4) PLF @ 165
DBT35 x 5' 35" 741 22.02 108092 117744 851
DBT35 x 8' 35" 963 24.03 125512 445367 1106
DBT36 x 5' 36" 747 22.65 116364 117762 858
DBT36 x 8' 36" 970 25.00 135099 445385 1114
DBT41 x 5' 41" 777 25.76 163034 117852 892
DBT41 x 8' 41" 1000 28.47 189247 445475 1148
DBT45 x 5' 45" 801 28.22 206955 117924 920
DBT45 x 8' 45" 1023 31.19 240282 445547 1175
DBT53 x 5' 53" 849 33.05 313295 118068 975
DBT53 x 8' 53" 1072 36.55 364069 445691 1231
DBT60 x 5' 60" 891 37.21 427701 118194 1023
DBT60 x 8' 60" 1114 41.18 497472 445817 1279
DBT65 x 5' 65" 921 40.14 522290 118284 1058
DBT65 x 8' 65" 1144 44.38 607876 445907 1314

Product Information

Knife River has the capability to manufacture Deck Bulb Tee girders in depths ranging from 35″, 36″, 41, 45″, 53″, 60″ to 65″. Should deeper sections be required, adjustments to casting forms can be made. The design specifications for standard Deck Bulb Tee girders are usually determined by the State, County, or relevant Agency. In the Pacific Northwest region, employing a standard-sized DBT with a 6″ deck is the most economically efficient choice for utilizing this section.

Standard Design Options

  • Integral precast Curbs
  • Utility Inserts
  • Weld or UHPC deck connections
  • Air entrained decks, Curved Decks
  • Cross slope, camber compensation
Technical drawing of a W18x85 steel wide flange beam cross-section with dimensional specifications and material notes. Technical drawing of an I-beam steel section showing cross-section dimensions. Technical drawing of a W14x90 wide flange steel I-beam cross section with dimensional measurements in inches. Technical drawing of a reinforced concrete T-beam cross-section showing dimensions in millimeters. Cross-section of a reinforced concrete T-beam showing dimensions for the flange, web, and stem. Technical cross-section drawing of a structural steel beam with dimensional annotations and scale bar. Technical cross-section drawing of a reinforced concrete T-beam showing dimensions and reinforcement bar placement. Crane lifting a large concrete bridge girder with steel bearing pads, set against a blue sky with trees. Aerial view of a bridge under construction with a large crane lifting components, workers on site, and a residential neighborhood in the background. Oversized load trailer carrying a large concrete bridge girder on a rural highway, with a pilot vehicle ahead. A crane lifts a concrete girder above a partially built structure at a construction site surrounded by trees.

3D Viewer

3D Viewer Tools

 

  • 3D Viewer Functions:
  • Move, Span, Zoom Assemblies
  • Isolate Single Components in View
  • Explode Assembly Single Components
  • Use Markup to Sketch Details
  • General Measurements for Concept
  • Print Views

Need More Info?

We Are Here to Help

 

Have a question, need a budget or detailed schedule?  Knife River sales team is ready to discuss precast solutions for your project.  Reach out to our staff below :

A smiling bearded man in a black polo shirt with the Knife River logo on the chest.

Andy Roberts

Outside Sales, ID & MT

phone

509.904.8610
Nikolaus Mixon, Outside Sales for Oregon and California at Knife River Prestress.

Nikolaus Mixon

Outside Sales, OR & CA

phone

541.257.7412
Alex Sari, Outside Sales for Washington and Alaska at Knife River Prestress.

Alex Sari

Outside Sales, WA & AK

phone

(509) 992-5614

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