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State Bridge Office News Archive Questions may be directed to the State Bridge Design Engineer, Phone: (785) 296-3761 or to the contact listed in each news item. New Bridge Design ManualThe 2008 version of the KDOT Bridge Design Manual is available for download. This manual supersedes all previous versions in their entirety. Please review the revisions on page R-1 as manual content and additions have occurred. Of note, an Abbreviated Table of Contents has been added on page 10, now each Chapter (1,2,4,5) has a Table of Contents and in Chapter 3 each section has a Table of Contents. It is hoped that this formatting improves the use of the manual. The updated Bridge Design Manual is located here: http://www.ksdot.org/KART/index.aspx For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
DEMOLITION INFORMATION AND NEW BRIDGE OFFICE STANDARD NOTE NOT8700The State Bridge Office will work with our Contractors to develop a Special Provision and plan notes that will result in controlled demolition during the repair of structures. This note is the first component of that effort. There are many aspects to this effort; we will address them in a logical fashion. Safety of the traveling public and to the construction workers is of primary importance. This will required that structural engineers are involved. The demolition plans must be as complete and as well thought out as the repairs plans. We invite your input in this effort. The following Bridge Office Standard Note (USC) was added. This note is to be used on all span structures in which repair, modification or otherwise unintended loads may be placed on the structure. NOT8700 TEMPORARY CONSTRUCTION LOADS:The Contractor will not stock pile construction materials, debris/rubble or place equipment weighing more than 10 tons on the bridge without prior written approval by the KDOT Area Engineer. For bridges with highway traffic on or under the bridge the Contractor will provide plans showing the location, quantity and weight of the proposed materials, debris or equipment weighing more than 10 tons. These plans will bear the Seal of the Contractor’s Engineer before approval is granted. The Contractor’s Engineer will use AASHTO Specifications for limitations on structural capacities, as the structure is found in the field. *** Use this note for repairs on open span structures.
Bridge Design Manual Engineer
NEW BRIDGE OFFICE STANDARD NOTES NOT2221, NOT2222The following Bridge Office Standard Notes (USC) were added. NOT2221 BEARING (STEEL REINFORCED ELASTOMERIC): Elastomeric Bearing Device shall be factory bonded to the steel sole plate by a vulcanization process. The steel sole plate and swedge anchor bolt are subsidiary to the bid item, ?Bearing (Steel Reinforced Elastomeric)? and shall be furnished by the bearing device fabricator. NOT2222 BEARING (TFE/ELASTOMERIC): The Elastomeric portion of the Bearing Device shall be factory bonded to the steel base plate and the steel cover plate by a vulcanization process. All exposed surfaces of the base plate, cover plate, sole plate and side retainers shall be painted with an inorganic zinc primer and water borne acrylic top coat. Repair painted surfaces damaged by welding operations. Mask all exposed stainless steel before field painting; clean any overspray on the stainless steel sheet. The steel plates, side retainers and swedge anchor bolts are subsidiary to the bid item. ?Bearing (TFE/Elastomeric)? and shall be furnished by the bearing device fabricator. For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
KDOT Structure Log Application added to KART for downloadAn electronic version of the KDOT Structure Log is now available in PDF format and downloadable from the KDOT KART system. This download includes a frontend application to assist in locating the reports by district and county. The Structure Log (previously known in hardcopy as the "Bridge Log") provides the user with structure related data from the CANSYS database, presented in English units of measure, for structures on the Kansas State Highway System. The Structure Log information will be updated and posted in October on an annual basis. The Structure Log reports now include the 10'-20' span structures which were not formerly in the Bridge Log. Questions concerning the content of the Structure Log reports can be directed to one of the following contacts. Management Systems AnalystBureau of Design, Bridge Office Special Assignments Section (785)291-3235 Bridge and Rail Crossing Systems Engineer Bureau of Transportation Planning Geometric and Accident Data Unit (785)296-2778 Environmental Considerations for RCB\ RFB StructuresThe Corps of Engineers has posted new regulations for issuance of nationwide permits (6/26/07). One item of interest regarding culverts is as follows: 11. Culverts. The permittee must notify the District Engineer in accordance with the "Notification" general condition of the NWPs (general condition 27) for any regulated activity which involves the construction of a new or replacement culvert on an expected aquatic life use water or restricted aquatic life use water located in the Kansas Water Register. The Kansas Water Register is available on request from the Corps or can be found at http://www.kdheks.gov/befs/download/Current_Kansas_Water_Register.pdf. All culverts must be designed to allow the natural passage of aquatic organisms. The culvert design must mimic the natural shape and flow of the channel. For all box culverts with three or more cells on expected aquatic life use waters or restricted aquatic life use waters, the opening of the center culvert must be slightly lower than the adjacent culverts to concentrate low flows for the passage of aquatic organisms.
Here is the link to the entire document from the Kansas City Corps of Engineers
website: KDOT has developed a ?Base Drawing? BR025, Titled "Embedded Structure", which both buries the entire structure 12? and adds baffles to the outer cells thus creating favorable fish passage conditions. Please use this drawing to comply with the above conditions. Serial Number Request Forms Available OnlineSeparate online serial number request forms are now available for bridges, culverts and walls. These forms allow the requestor to fill in the data, save a copy, and submit the form by email using an Adobe PDF reader version 7.0 or above. The completed requests are submitted by selecting the ?E-mail Form? button at the bottom of the form. Once a serial number has been assigned, the requestor will receive a Serial Number Assignment Memo in a reply email to the account used to send the request form. A separate request form submission is required for each individual serial number requested. The online request forms can be found at the KDOT State Bridge Office Internet page at: http://www.ksdot.org/burDesign/bridge/default.asp or the KDOT Information for Design Consultants Internet page at: http://www.ksdot.org/descons.asp Contact the Bridge Special Assignments Management Systems Analyst with any questions.
Management Systems Analyst NEW BRIDGE OFFICE STANDARD NOTES NOT6521, NOT6522, AND NOT6523The following Bridge Office Standard Notes (USC) were added.
NOT6521 ERECTION PLANS: This is a Category A Structure. Submit
detailed Erection Plans to the Field Engineer per KDOT Specifications. A Licensed
Professional Engineer is not required.
NOT6522 ERECTION PLANS: This is a Category B Structure. Submit
detailed Erection Plans to the State Bridge Office (or Bureau of Local Projects)
at least 4 weeks before beginning the erection process. Portions of the submitted
details shall bear the seal of a licensed Professional Engineer. Identify, on the
Erection Plans, the Erection Supervisor required by KDOT Specifications. No structural
erection work will begin without approved erection plans.
NOT6523 ERECTION PLANS: This is a Category C Structure. Submit
detailed Erection Plans to the State Bridge Office (or Bureau of Local Projects)
at least 4 weeks before beginning the erection process. Portions of the submitted
details shall bear the seal of a licensed Professional Engineer. Identify, on the
Erection Plans, the Erection Supervisor required by KDOT Specifications. The Erection
Supervisor will attend the required pre-erection meeting before these operations
begin as described in KDOT Specifications. No structural erection work will begin
without approved erection plans. For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
LRFD Bridge Design ManualLRFD Bridge Design Manual Section 3.9 Deck Slab, of KDOT’s LRFD Bridge Design Manual is available for use at (http://www.ksdot.org/burDesign/bridge/lrfd/bdlrfdchapter3.asp). This is the first section of the LRFD version of chapter three released. As you know, the existing Bridge Design Manual’s LFD chapter three is the design portion of the manual. As such, it is our intent to replace (by releasing on this site) chapter three of the existing Bridge Deign Manual with LRFD content, section by section, as they are developed. In an attempt to provide design guidance as soon as possible, information will be released into these sections, which maybe incomplete, so it is important to periodically check this site for updates. As with future sections, Section 3.9 Deck Slab has an accompanying MathCadd document design tool that can be used for designs not covered in the new design charts. Even though chapter three is not complete the designer is charged with using the latest edition of the AASHTO LRFD Bridge Design Specifications with interims. The other chapters of the existing manual focus on policy and procedure. For instance, state law, permits, and specifications, are in chapter one, while preliminary design is in chapter two, load rating is in chapter four and falsework in chapter five. These chapters are updated according to changes to their respective topics. Policy changes are discussed monthly at bridge staff meetings and released as squad leader meeting minutes. Therefore, these chapters are not design specification specific and will be updated annually, as has been done in the past. The sections of chapter three that are released in LRFD will remain within the existing manual in their original LFD form with a notice on each topic title directing the user to visit the above site for current design information.
Bridge Design Manual Engineer
New Bridge Design ManualThe 2007 version of the KDOT Bridge Design Manual is available for download. This manual supersedes all previous versions in their entirety. Please review the revisions on page R-1 as manual content and additions have occurred. Of note, Appendix F has been added which defines bridge bid items which are consistent with the 2007 Standard Specifications for State Road and Bridge Construction.
As with the 2007 Standard Specification, this manual was released in US Customary units only. The existing 2006 SI Bridge Design Manual will remain unrevised. This is consistent with KDOT’s transition back to US Customary units of measure in that all General Notes, Bid Items, Special Provisions, Base Standard Drawing and Standard Designs (such as RCB, RFB and RCSH) will not have further updates in SI Units of measure but sunset as the last on each of their last respective revisions. The updated Bridge Design Manual is located here: http://www.ksdot.org/KART/index.aspx For help or information regarding the KDOT Bridge Office Design Manual, please contact:
Bridge Design Manual Engineer
New Bridge AppsThree Engineering software tools have been added to the KART download area. http://www.ksdot.org/KART/index.aspx EvapoRATE The EvapoRATE program calculates the evaporation rate during concrete curing given 4 inputs (air temperature, relative humidity, concrete temperature, and wind velocity). Input and output can be saved to database. Screed Error This program calculates the screed error (actual screed elevation minus theoretical screed elevation at center of screed) that occurs when screeding a skewed haunch slab bridge. This error can be introduced when the screed is placed at an angle other than the skew of the bridge resulting in each screed rail being in a different relative distance into the span and consequently different location in the camber diagram. This error can also be introduced by the effects of skewing a screed over a vertical curve which itself could cut or fill the slab at the center of the screed. QPlot The QPlot application is intended to provide a way to plot and examine flow discharges as they relate to return interval probabilities without having to resort to hand plotting points and curves on graph paper. Plotting known discharges versus return intervals is usually done in order to come up with a line through the known points that can be used to predict other discharge or return interval values. This would be done by projecting a line from a desired axis value until it intersects the graphed line, and then projecting that point onto the other axis to get a corresponding value. QPlot will provide a visual printable plot of the known values for this purpose, but will also provide a curve fit, so values can be interpolated and extrapolated using the curve equations. QPlot also generates a printable plot and report that serves as documentation for the curves and computed values. NEW BRIDGE OFFICE STANDARD NOTE AND REVISION TO STANDARD NOTE NOT2205The following Bridge Office Standard Note (USC) was added. NOT2206 ANCHOR BOLTS:Anchor bolts will adhere to KDOT Standard Specification Section 1600 with the following exception. The threads may be rolled or cut. *** Since anchor bolts for bridge bearings are not subjected to cyclic axial loadings, rolled or cut threads are acceptable. Use this note for bridge bearings The following Bridge Office Standard Note (USC) was modified. The modification is noted in Orange color below. NOT2205 ANCHOR BOLTS: Anchor bolts will adhere to KDOT Standard Specification Section 1600 with the following exception. Do not use cut threads. Use rolled threads. *** Cut threads are no longer acceptable for the structures subjected to cyclic axial loadings. Use this note for all anchor bolt applications except bridge bearings. For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
UPDATED VIRTIS/OPIS AGENCY LIBRARY AND NEW BRASS LFD LIBRARY FILEThe download file "Virtis/Opis Agency Library (XML)" has been updated to version 5.5.0, available through "KART".
There is a new entry on KART, "BRASS
Girder LFD Library file".
For help or information regarding the KDOT Bridge Office Virtis/Opis , please contact:
Virtis/Opis
FINAL CONVERSION TO US CUSTOMARY UNITSThe 2007 Standard Specification for State Road and Bridge Construction will be implemented for projects in the July lettings. This new Specification combines the current Special Provisions with the existing Standard Specifications with very few changes. The Bureau of Construction and Maintenance has decided that only the US customary units will be published. There are approximately 11 projects that will be let after this date. The Bureau of Construction and Maintenance will release an errata to the new Specification stating that while a few projects will be let in metric units the accompanying proposal and supporting specifications will be US customary. Currently, the Bridge Design Manual, Bridge Construction Manual, Standard Notes, Design Standard Drawings and Base Standards are produced and maintained in dual units. In the future, updates and new elements of the aforementioned will be produced in US customary units only. The State Bridge Design Office feels this is an appropriate time to make this transition back fully to US customary units. For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
GENERAL NOTES UPDATEBecause of the changes associated with the New 2007 Standard Specifications for State Road and Bridge Construction (beginning in the July 2007 lettings) many of the Bridge Design General Notes have been modified. The following is a list of bridge note numbers which are affected. 1010,1115, 2000, 2010, 2110, 2120, 2220, 4100, 4105, 4106, 4110, 4120, 4130, 6110 6210, 6602, 6603, 6604, 6605, 6630, 6640, 7410, 8110, 5215, 8500, 9100 NOT1112 is a new note for drilled shafts in shale greater than 72? which are anticipated to be wet pours.
The Bridge Office Standard Notes may be obtained at:
For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
NEW BRIDGE OFFICE STANDARD NOTEThe following Bridge Office Standard Note (SI & USC) was modified. These notes have been revised to more clearly describe,fillet depth(s) and grading the bridge deck of plate girder or rolled beam bridges. NOT6500 FILLETS: Camber the steel girders for the total dead load deflection and the vertical curvature, if necessary. The ordinates shown for concrete dead load deflection represent the amount of camber that should be in the girders after they are erected and bolted but prior to placing the floor forms. After the structural steel is completely erected and the falsework bents are removed, measure the camber in the field by taking a profile of each girder. Correct any variation between the actual camber and the concrete dead load deflection shown in the plans by varying the depth of the concrete fillets over the girders so that the finished floor is constructed to the theoretical grade. The minimum depth of the slab over the girder shall be ---- inches.. The theoretical amount of concrete required for the fillets is ___ C.Y. This amount of concrete is included in the Summary of Quantities. Any additional concrete required to construct the fillets will be subsidiary. *** Use this note with welded plate girder structures. NOT6510 FILLETS: Construct the finished deck to plan grade by varying the depth of the fillet over the beam to provide for beam profile, concrete dead load deflection and, if necessary, vertical curvature. After the beams are completely erected and the falsework bents are removed, profile each beam. Correct any variation between the actual profile and the concrete dead load deflection shown in the plans by varying the depth of the concrete fillets over the beams so that the finished floor is constructed to the theoretical grade. The minimum depth of the slab over the beam shall be ---- inches. *** Use this note with rolled beams structures. (Use total dead load defections to calculate concrete quantities.)
The Bridge Office Standard Notes may be obtained at: For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
NEW DESIGN POLICY FOR SHOP DRAWINGS SIZEPlease read the attached Design Shop Drawings Memo from Bureau Chief Jim L. Kowach, P.E.. Please do not request Type D (22"x34") size sheets for shop drawings. KDOT's policy is to use Type B (11"x17") size sheets exclusively (except as noted in memo) starting January 1, 2007. Please read the memo for more details.
Memo Dated December 29, 2006: For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
NEW BRIDGE OFFICE STANDARD NOTEThe following Bridge Office Standard Note (SI & USC) was added. NOT2205 ANCHOR BOLTS: Anchor bolts will adhere to KDOT Standard Specification Section 1600 with the following exception. The threads will be rolled and not cut. *** Cut threads are no longer acceptable for the structures subjected to cyclic axial loadings.Use this note for all anchor bolt applications except bridge bearings.. This new note is to be added to all bridge/signing projects which have anchor bolts loaded in cyclic axial tension. With respect to fatigue resistance, anchor bolts with rolled threads perform much better than anchor bolts with cut threads. This is due to the residual compressive forces in the annular direction created by cold working the material. The new Standard Specifications (circa 2007) Section 1600 will reflect the above criteria.
The Bridge Office Standard Notes may be obtained at:
For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
STANDARD DRAWING CHANGES BR020 AND BR100BR020 and BR100 have changed. This changes are to be included for the January Letting. The following links give a summary of the changes and the references which changed.
Foundation Stabilization
Changes Summary
Special Provision 90P-210-R3 revision
Foundation Stab(Box Example).dgn
For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
BRIDGE, CULVERT OR WALL SERIAL NUMBER REQUESTSFor new Bridge, Culvert or Wall serial number requests, please contact the Senior Bridge Squad Leader assigned to the project. After the appropriate Serial Number Request Form is completed, (found at the links above) please submit your Serial Number Request Form to the Senior Bridge Squad Leader assigned to your project. Also, submit a copy of the completed Serial Number Request Form to:
Management Systems Analyst
NEW BRIDGE OFFICE STANDARD NOTEThe following Bridge Office Standard Note (SI & USC) was added. NOT7221 TEMPORARY BARRIER PLACEMENT: For Reinforced Concrete Haunched Slabs where a temporary barrier will be installed by drilling and grouting into the top of the slab, the Contractor will measure from the edge of the slab to a line were the bolts will be inserted into the slab. The Contractor may bundle or move top reinforcing bars in the vicinity of this line to ensure that longitudinal reinforcement will not be damaged. If the Contractor deviates from the location shown on the plans, use a pacometer prior to drilling holes. This is to locate and avoid damaging reinforcement. Any damage will be repaired at no cost to the State.
** Designers show detail and dimension for rebar to be moved or bundled
The Bridge Office Standard Notes may be obtained at:
For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
BRIDGE DESIGN MANUAL (USC & SI) VERSION 6/06The Kansas Department of Transportation, State Bridge Office is releasing the revised and updated Bridge Design Manual, Volume III - Version 6/06 (SI and USC Units). Please download both the USC (English) and SI (Metric) Manuals as these new manuals supersede and replace all previous versions of the Bridge Design Manual. The Manuals, software, KDOT Standard Drawings and other information can be downloaded from the new link listed below.
KART (KDOT Authentication & Resource Tracking)
For help or information regarding the KDOT Bridge Office Standard Notes, please contact:
Bridge Design Manual Engineer
KDOT AUTHENTICATION & RESOURCE TRACKING (KART)
The KDOT Standard Drawings, Bridge Design Manuals, Design Software and other forms
can now be downloaded with no fee at: For help or information regarding the KDOT Authentication & Resource Tracking (KART), please contact:
KART Adminstrator
STEEL PILING AND PILE POINTSStarting in the October 2006 Letting The State Bridge Office will begin using ASTM A 709 Grade 50 or ASTM A 572 Grade 50 Steel H-Piling and ASTM A 148, Grade 80-50 steel casting and cast steel pile points. These materials will be used exclusively in permanent structures after the October 2006 Letting as per the Special Provisions 90P-293 / 90M-293. These new pile capacites are reflected in the 2006 Version of the Bridge Design Manual. For help or information regarding Steel Piling and Pile Points, please contact:
Bridge Design Manual Engineer
(NEW) ENGLISH BRIDGE DESIGN MANUAL - VERSION 1/2006The KDOT State Bridge Office has released the new 2006 English Bridge Design Manual. The English Bridge Design Manual (Version 1/2006) can be downloaded with no charge at: http://www.ksdot.org/burDesign/bridge/accounts/. The English Bridge Design Manual (Version 1/2006) supercedes and replaces all previous versions of the English Unit (USC) Bridge Design Manual. NOTE: The 2006 Metric (SI) version of the Bridge Design Manual is under revision and soon will be available. For help or information regarding Steel Piling and Pile Points, please contact:
Bridge Design Manual Engineer
CONVERTING KDOT ENGINEERING STANDARD DRAWINGS
|
| Old designation | New designation |
|---|---|
| Concrete (Grade 35) | Concrete (Grade 35) (no change) |
| Concrete (Grade 30) | Concrete (Grade 31) |
| Concrete (Grade 28) | Concrete (Grade 28) (no change) |
| Concrete (Grade 24) (future use, not defined) | |
| Concrete (Grade 25) | Concrete (Grade 21) |
| Concrete (Grade 20) | Concrete (Grade 17) |
The Bridge Office Standard Detail Sheets and Standard Notes have been revised to reflect this change.
This change occurred to make the metric concrete grades equivalent to the current English grades (Grades 5.0, 4.5, 4.0, 3.5 (future), 3.0 and 2.5 respectively).
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