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# Florida Department of Transportation

JEB BUSH GOVERNOR | 605 Suwannee Street Tallahassee, FL 32399-0450 | JOSE ABREU SECRETARY

July 30, 2004

MEMORANDUM

TO: | All Users of the Florida Department of Transportation Structures Design Guidelines, Structures Detailing Manual, and Structures Standard Drawings.
FROM: | William N. Nickas, State Structures Design Engineer
COPIES: | State Highway Engineer, Freddie Simmons; Director Office of Design, Bob Greer; FHWA, Jeffery Ger; State Structures Design Engineers (David O'Hagan, Robert Robertson, Jack Evans, Larry Sessions, and Marc Ansley); State Geotechnical Engineer, Larry Jones; District Structures Design Engineers (Gerard Moliere, Rod Nelson, Keith Shores, John Danielsen, Neil Kenis, Kim Saing, Jose Rodriguez, and Agnes Spielmann); District Structures and Facilities Engineers (Pepe Garcia, Keith Campbell, John Locke, Jose Quintana, Ron Meade, Frank Guyamier, and Michael Werner)
SUBJECT: | Structures Manual including the Structures Design Guidelines (Topic No. 625-020-154-b), Structures Detailing Manual (Topic No. 625-020-200-e), and Structures Standard Drawings (Topic No. 625-020-300-g).

The Florida Department of Transportation Structures Design Office has officially released the July 2004 Structures Design Guidelines, Structures Detailing Manual, and Structures Standard Drawings. Copies of the Design Guidelines, Detailing Manual, and Standard Drawings are now part of the Structures Manual, and can be downloaded from the Structures Office website at www.dot.state.fl.us/structures.

The Structures Manual is a web based html format including hyperlinks, easy navigation, indexes, and advanced search capabilities. PDF's for the Guidelines and Detailing Manual are included for printing purposes. Standard Drawings and Drawing Examples are available in both MicroStation format (dgn files) and PDF format.

The Structures Manual will be updated every six months (January and July) and serve as the single source for FDOT design criteria for structural designs prepared by the Department and consultant designers. All users of the Manual are encouraged to submit suggestions to improve and further develop the contents thereby providing maximum assistance to the structural engineering community. Submit any suggestions to Andre Pavlov, Florida Department of Transportation, 605 Suwannee Street, MS 33, Tallahassee, Florida 32399-0450, or e-mailed to andre.pavlov@dot.state.fl.us.

The design criteria shall be incorporated on all future projects and on those projects currently being developed (i.e., when design and detailing has not already reached final stages). Where incorporation is not feasible, a request for a variance shall be submitted. For specific questions about the Manual, or its application to a particular project, contact the appropriate District Structures Design Office.

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SDG Revisions July 2004
2.5 | Miscellaneous Loads | Added Bicycle Railings
2.6 | Vehicular Collision Force | Req's pier column design for equivalent static LRFD force and shear reinforcement to eight feet above ground surface.
3.1 | Substructure | Added paragraph "D." requiring designed connection to superstructure and prohibiting "Freyssinet" or other concrete hinges.
3.5.1 .A | Cylinder Piles | Minor revision for ducts v. strands.
3.5.16 | Fender Piles | Added paragraphs "C." prohibiting plastic piles & "D." allowing wood or plastic wales.
3.6 | Plan Notes | Added section 3.6.7, Plan Notes and wording for pressure-grouted shaft tips.
3.13.3 H&I | Soil Reinforcement | Added (H) exception for acute corner requiring bin wall and (I) directions for bridging obstructions.
4.2.1 | Bridge Length Definitions | Short Bridge now 100 ft or less. Long Bridge greater than 100 ft.
4.2.2 C . | Deck Thickness | Added req's for thickness below traffic railings.
4.2.4 | Deck Slab Design | Para "A"& "B" - Added proviso for Staged Construction or Future Widening. Clarified deck overhang measurement criteria.
4.3.1 .D.3 | Pretensioned Beams | Re: Release strength for case-by-case conditions set maximum as "lesser of 0.8f'c or 6.0 ksi. Added commentary for LRFD 2002 longer bursting force distribution strength.
4.5.5 | Ducts and Tendons | Revised requirements for steel pipe ducts. Paragraphs "G, H & - I"
4.5.11 | Principal Tensile Stresses | Added section for stress limits.
4.6.9 | Transverse Deck Analysis & Design | Requires analysis at Service I and Strength I of HL-93.
5.3 | Structural Steel (5.3.2 Testing) | Redefined Fracture Critical Members for testing.
5.6 | Box Sections | Deleted steel ramp requirements, added 36" diameter., changed D.2
5.6.5 | Transverse Concrete Deck Analysis | Requires analysis at Service I and Strength I of HL-93.

SDM Revisions July 2004
3. 3.C | Quantity Calculation | Expanded quantity breakdown for construction phase, various components.
3.4 .D | Summary of Pay Items | Requires quantity calculations for Critical Temporary Walls and Sound Barriers.
6.1 .B | Bridge Hydraulics | Requires Bridge Hydraulic Sheet in Final Plans.
12 | Fender Systems | Added wording for dolphins & islands, government responsibility, design procedure, added option for wood wales, deleted ladder sections which duplicate OSHA.
14.2 .F | Welds | Required Field Weld Symbol for shear connectors.
14.3 | Heat Curving | Deleted section

QPL Acceptance Criteria July 2004
Chapter 2 Sound Barriers | Renumbered outline.