Title: Railroad Involvement relating to Bridge Design
1Railroad Involvement relating to Bridge Design
Ohio Department of Transportation
2Preferred Verification Study
- Design Topics (cont.)
- Traffic Control
- Other
- Right of Way
- Environmental
- Sheets
- Cost Estimates
- Reviews
- Right of Way
- Refine construction limits
- Poles, controllers
- Ditch flowlines
- Culvert outlet protection
- Railroad acquisition
Step 7
3Preferred Verification Study
- Design Topics
- Survey
- Geometrics
- Geotech
- Pavements
- Drainage
- Structure Type Study
- Maintenance of Traffic
- Structure Type Study
- Hydraulic study and scour
- Structure Types
- Clearances
- Maintenance of Traffic
- Permitted Lane Closures Exceptions Committee
Step 7 Suggestion - Start working on the
Supplemental Site Plan during this step
4Step 8- Stage 1 Detailed Design LD 1403.7
- Design Topics
- Survey
- Geometric
- Drainage
- Right of Way
- Traffic Control
- Environmental
- Structures
- Preliminary Structure Design Report
- Supplemental Site Plan
Step 8
5Project Development Process requiring railroad
involvement
- Step 6 District to discuss Feasible alternatives
with railroad - Step 7 Preferred verification study and begin
preparing supplemental site plan - Step 8 Develop Stage 1 Design coordinate with
railroad - Step 9 Incorporate railroad comments into
Stage 2 plans and send to railroad for review - Step 11 Incorporate railroad comments from
Stage 2 into Stage 3 and send to railroad
6Bridge Design ManualRailroad design requirements
- 202.2.4 Supplemental Site Plan for Railway
Crossings - 301.4.2 Railroad Bridges
- 602.3 For Railway Projects
- 608 Railroad Grade Separation Projects
- 608.1 Construction Clearances
- 608.2 Railroad Aerial Lines
7BDM 202.2.4 Supplemental Site Plan
- This plans shows information necessary for the
determination of slope lines, probable property
requirements, sight distance, and other items
involved in determining the type of separation.
8BDM - 301.4.2 Railroad Bridges
- Bridges are to be designed in accordance with
current AREMA specifications and the individual
railway companys loading requirements. All other
aspects of the structure design shall conform to
AASHTO.
9BDM 602.3 FOR RAILWAY PROJECTS
- For structures carrying railroad traffic, provide
the following notes on the project plans - 9 DESIGN SPECIFICATIONS
- 10 DESIGN DATA
- 10M DESIGN DATA
10BDM 608 Railroad Grade Separation Projects
- 608.1 Construction Clearances
- 39 Maintain a construction clearance of 13
feet meters horizontally from the center of
tracks and 22 feet meters vertically from a
point level with the top of rail. - Design Clearances are 18 feet horizontally from
the center of tracks and 23 feet vertically from
top of rail. -
11DEALING WITH EXISTING SUBSTANDARD CLEARANCES
12BDM 608 Railroad Grade Separation Projects
- 608.2 Railroad Aerial Lines
- 40 Railroad aerial lines will be relocated by
the Railroad.
13Railroads RequirementsClearances/Crashwalls
- Clearances Horizontal clearance 18 feet from
the centerline of track to the face of the pier
or abutment. Vertical clearance of 23feet from
the top of rail. - Crashwalls AREMA specifications, Chapter 8,
Article 2.1.5 covers requirements. Crashwalls are
required when face of the pier is closer than 25
feet from the center line of the track.
14Railroads RequirementsDrainage
- Drainage from the bridge shall be preferable
collected with drain pipes and drained away from
the railroad right of way. When open scuppers are
provided on the bridge, none shall be closer than
25 feet of the centerline of track. Flow from
scuppers shall be directed away from the railroad
drainage ditches.
15Railroads RequirementsStructure Excavation and
Shoring
- Shoring protection shall be provided when
excavating adjacent to an active railroad track,
except as noted below - 1) Excavation does not encroach upon a 1 ½
horizontal 1 vertical theoretical slope line
starting 1foot 6 inches below top of rail and at
12 feet minimum from centerline of track. - 2) Track is on level ground or in a cut section
and on stable soil. (see railroad design
manual) -
16Railroads RequirementsGeneral
- Railroad Valuation Station and the distance from
the nearest mile post at the intersection of the
centerline of the track and the centerline of the
bridge shall be shown on the plans. - Horizontal and vertical clearances shall be
clearly marked. - At least one subsurface exploration boring for
each substructure unit adjacent to the track
shall be furnished. (see railroad design manual)
17Railroads RequirementsDemolition of Existing
Structure
- Railroad tracks shall be protected from damage
during demolition of existing structure or
replacement of deck slab. Either method may be
used - 1) a protection shield shall be erected over
the track to catch falling debris - 2) track may be protected by timber mats placed
over the track structure (see railroad design
manual)
18Railroads RequirementsErection Procedure
- The contractor shall submit a detailed procedure
for erecting the spans over the railroad tracks.
The procedure shall indicate the capacity of the
cranes, location of the cranes with respect to
the tracks and estimated lifting loads. The
procedure must be approved by the railroad
19General Railroad Information
- Review time the railroads usually require at
least 2 months per each review - Railroads require as built plans
- When performing work on railroad right of way
before the project is awarded the consultant will
need to obtain a right of entry (contact CO rail
coordinator) - Flaggers maybe required when work is being
performed in railroad right of way and within 25
feet of the railroad tracks
20For more information
- Please feel free to contact any district rail
coordinator or central office rail coordinator - Norfolk Southerns design manual is available via
the web at www.nscorp.com/nscorp/index - CSX Transportation design manual is available by
contacting CO rail coordinator - ODOTs bridge design manual is online
21Thank You
22NARRATIVE OF BRIDGE ALTERNATIVESThe Structure
Type Study shall include a brief narrative
identifying the structure alternatives and their
costs. The narrative should provide insight
into why the particular proposed structure was
chosen. Factors that need to be considered in
selecting a structure for a particular site
include geometry, economics, maintainability,
constructability, right-of-way constraints,
disruption to the traveling public, waterway
crossing requirements or grade separations
requirements, clearances for railway and highway
crossings, foundation considerations, historical
and environmental concerns, debris and ice flow
problems and appearance.
23- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS - For Railway-Highway grade separation structures,
a Supplemental Site Plan is required. The
Supplemental Site Plan should be completed and
submitted with the Final Site Plan (STEP 8).
The reproduced tracing of this plan should have
the title block deleted so that the railroad can
use the plan to show force account work necessary
to complete the highway project. -
24- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS - This plan shall show information necessary for
the determination of slope lines, probable
property requirements, sight distance and other
items involved in determining the type of
separation. -
25- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS - A. A 1 100 1 to 1000 scale plan of the
alignment of the railroad and the highway
extended at least 1000 feet each way from the
proposed point of intersection, taken from
actual surveys. - B. Profile of top of rails of all railroads,
extending at least 1000 feet each way from the
proposed intersection.
26-
- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS - C. Sufficient cross sections along the railroad
and highway to determine approximate earthwork
limits and encroachment on railroad property. -
27IDENTIFY ALL RAILWAY OBJECTS
28-
- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS -
- D. In case a highway underpass type of
separation is at all possible, the submitted
information should show the line and profile of
the nearest or best outlet for drainage. - E. Intersection angle between highway
centerline and railroad centerline. - F. Highway stationing and railroad mile post
stationing at intersection. - G. Railroad right-of-way lines.
-
29-
- 202.2.4 SUPPLEMENTAL SITE PLAN FOR RAILWAY
CROSSINGS -
-
- H. Railroad pole lines, signal control boxes,
communications relay houses, signal standards
and drainage structures. - I. Centerlines of all tracks and location of
switch points. - J. Location of buildings or other structures
within the railroad right-of-way. - K. Railroad traffic counts including type of
movements and speed. - L. Location of all utilities occupying railroad
right-of-way and the names of the owners of these
utilities.
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39Appendix A
- Alternate Type Study Report
40Appendix B
41Appendix C
- Standard Railroad General Notes
42608 RAILROAD GRADE SEPARATION PROJECTS608.1
CONSTRUCTION CLEARANCEObtain the actual
dimensions used in the text of this note from the
"Agreement" (a legal document signed by the
Director and Railroad). To help limit project
construction problems, validate those dimensions
with the district railroad coordinator before the
note is considered complete. Revise the note to
define the agreed upon restraints, including
items such as short term clearances, if different
than the construction clearances maximum period
of time for restricted clearances or other
project specific controls.
43608 RAILROAD GRADE SEPARATION PROJECTSSECTION
600 TYPICAL GENERAL NOTES 39 CONSTRUCTION
CLEARANCE Maintain a construction clearance of
feet horizontally from the center of tracks and
feet meters vertically from a point level
with the top of the higher rail, and feet
meters from the center of tracks, at all times.
The Designer shall fill in the dimensions.
44608 RAILROAD GRADE SEPARATION PROJECTS608.2
RAILROAD AERIAL LINESModify the note below to
match the specific requirements of the
"Agreement" (a legal document signed by the
Director and Railroad). Contact the District
railroad coordinator to confirm whether the
railroad will move, maintain, or re-construction
their lines or other cable systems attached to
the bridge or whether the note must specify this
scope of work as part of the project.40
RAILROAD AERIAL LINES will be relocated by the
Railroad. Use all precautionsnecessary to see
that the lines are not disturbed during the
construction stage and cooperate with the
Railroad in the relocation of these lines. The
cost of the relocation will be included in the
railroad force account work.
45608 RAILROAD GRADE SEPARATION PROJECTS609
UTILITY LINESUtilities shall be coordinated by
the District Utility Coordinator. The District
utilities coordinator shall be contacted for
required notes. If existing utilities contain
asbestos, or other hazardous materials, plan
notes will be required to define what material,
what utility line and where located. Designer
shall assure any plan notes added are coordinated
with the bid item descriptions to assure the
Contractor properly bids the item. The following
note should be used only if utilities are
involved and as modified by the district
utilities coordinator.41 UTILITY LINES The
Utilitiy(ies) shall bore all expense involved in
relocating (installing) the affected utility
lines. The Contractor and Utility(ies) are to
cooperate by arranging their work in such a
manner that inconvenience to either will be held
to a minimum.
46608 RAILROAD GRADE SEPARATION PROJECTSConstructio
n ClearanceMaintain a construction clearance of
12 feet horizontally from the center of tracks
and 21 feet vertically from a point level with
the top of the higher rail, and 6 feet from the
center of tracks, at all times.? How do you
paint the beams ?
47608 RAILROAD GRADE SEPARATION PROJECTSThe
utility shall bear all expense involved in
relocating (installing) the affected utility
lines. The contractor and utility are to
cooperate by arranging their work in such a
manner that inconvenience to either will be held
to a minimum.
48ERECTION PROCEDURETHE CONTRACTOR SHALL SUBMIT
A DETAILED SUPERSTRUCTURE ERECTION PROCEDURE
REPORT FOR ERECTING THE SPAN OVER THE RAILROAD
TRACKS. AS A MINIMUM THE REPORT SHALL CONTAIN
INFORMATION EXPLAINING THE LENGTH OF THE TIME
PERIOD NECESSARY TO ERECT EACH BEAM, HOW
CONSTRUCTION WILL BE COORDINATED WITH THE TRAIN
TRAFFIC, THE SEQUENCE OF PERFORMING ALL WORK
LOCATED OVER THE RAILROAD TRACKS, THE CAPACITY OF
CRANES, THE LOCATION OF CRANES WITH RESPECT TO
THE TRACKS AND THE ESTIMATED LIFTING LOADS.
PRIOR TO BEGINNING WORK OVER THE TRACKS, THE
ERECTION PROCEDURE REPORT MUST BE APPROVED BY THE
CSX DIVISION MANAGER. THE CONTRACTOR SHALL ALLOW
FOR 30 CALENDAR DAYS FOR THE CSX RAILROAD
REPRESENTATIVE TO REVIEW THE SUBMISSION
(859-344-8137 CSX).
49AS-BUILT PLANS FOR THE RAILROAD PRIOR TO
RECEIVING PAYMENT FOR THE FINAL PROJECT ESTIMATE,
THE CONTRACTOR SHALL PROVIDE ASBUILT DRAWINGS TO
THE PROJECT ENGINEER FOR SUBMITTAL TO THE
ENVOLVED RAILROADS FOR THEIR PERMENANT RECORDS.
THE PLANS SHALL CONSIST OF AND INCLUDE THE
FOLLOWING1. MICROSTATION FILES2. SHOW ALL
ACTUAL HORIZONTAL AND VERTICAL CLEARANCES3. SHOW
ALL ACTUAL FOOTING DEPTHS, LOCATIONS AND
DIMENSIONS4. SHOW ALL LOCATIONS OF
UTILITIESPAYMENT FOR THIS WORK SHALL BE AT THE
CONTRACT LUMP SUM PRICE FOR ASBUILT RAILROAD PLANS
50Appendix D
- Bridge Design Manual
- Section 200
51Appendix E
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