Office of Roadway Engineering - Plan Insert Sheets Number Title Date Number Title Date Number Title Date 201015 Extension of Anchor Bolts 07/20/12 207000 Bikeway Pavement Marking Details 01/18/13 202010 Sign Mounting Details 11/27/06 207510 Web Cameras 04/20/12 202020 Concrete Barrier Mounted Sign Support Detail, Method A 11/27/06 207560 Radio Interconnect Details 04/20/12 202021 Concrete Barrier Mounted Sign Support Detail, Method B 11/27/06 207610 Ramp Meter Installation 07/20/12 202022 Concrete Barrier Mounted Sign Support Detail, Method C 11/27/06 208320 Uninterruptible Power Supply (UPS) and Controller Cabinet Foundation 04/20/12 202030 Sign Support Assembly, Pole Mounted, As Per Plan 11/27/06 208321 Uninterruptible Power Supply (UPS) Foundation Retrofit 04/20/12 202160 Split Foundation 11/27/06 208340 Breakaway Transformer Base Connector Design 01/15/10 202310 Protective Coating of Overhead Sign Support Sections 01/21/11 208350 Diamond Interchange 3-Phase Operation 07/18/08 202311 Protective Coating of Overhead Sign Support Sections, Method B 11/27/06 208351 Diamond Interchange 4-Phase Operation 07/18/08 202400 Dynamic Message Sign Truss Catwalk 04/20/12 208521 Signal Tether Attachment 04/19/13 202510 Overhead Sign Support, Type TC-10.48 11/27/06 208522 Overhead Signal Attachments, Span Wire 04/19/13 202910 Fixture Support Arm Repair Brackets 11/27/06 209563 Construction Access Points 04/16/10 203011 Controller Cabinet Generator Power Panel 04/20/12 209565 Maintaining Mainline Traffic Using Ramps 07/20/12 203012 Battery Backup System (BBS) Generator Power Panel 04/20/12 209572 Median Crossover of Passing Lane, Short Distance 10/15/10 203020 Prepare To Stop When Flashing (PTSWF) Sign Installation 04/20/12 209573 Median Crossover of Express Lane, Long Distance 10/15/10 203030 Wapiti Software Timing Master 11/27/06 209940 Traffic Control for Post Chip Seal Operations 07/18/08 203121 Sign Lighting Details 01/21/11 209960 Short-Duration Closure of Multi-Lane Divided Highway 07/20/12 203322 Wapiti Software Intersection Timing, 332 Cabinet 01/19/07 2010175 Impact Attenuator Placement 07/20/12 203323 Wapiti Input File Information for 332 and 336 Cabinets 01/20/12 2010180 Longitudinal Channelizer Detail 04/17/09 203324 Sepac Input File Information for 332 and 336 Cabinets 04/20/12 203362 Wapiti Software Intersection Timing, 336 Cabinet 01/19/07 203410 Magnetometer Detector Probe Installation on Bridge 11/27/06 206010 Typical Pole Entrance Fitting 11/27/06 206011 Aerial Cable Placement Methods 11/27/06 206012 Cable Storage Details I 11/27/06 206013 Cable Storage Details II 11/27/06 206014 Miscellaneous Fiber Optic Details 04/15/11 206015 Typical Loose Tube Cable Installation 04/20/12 206016 Cable Construction 11/27/06 206410 Rumble Stripes 04/20/12 Page 1 of 1 04/19/13 SBR
1.5 (Typ.) Span Wire Clamp Assembly 3-Bolt Clamp Messenger Wire Bullring 1. NOTES S-Hook is matched to the strain pole design number (see table). S-Hook DESIGNED O FFICE O F RO A D W A Y ENGINEERING REVIEWED and turnbuckle are required only at one end of simple spans, all ends of " Bullring Tie as Required (Note 8) Wire Rope Clips (3) complex spans. S-Hook shall be closed at pole end. If S-Hook begins to yield during installation, it shall be removed and replaced. The wire tension shall be adjusted to minimize movement of signal heads in high winds. Typical tension is 600 to 800 lbs. REVISION DATE 04-19-13 CHECKED Safety Tie Anchor Assembly (Typ.) (see Note 7) Backplate, 2. Lock wire shall be stainless steel, " soft temper, wound to prevent turning of the turnbuckle body. Finished span shall have at least 2" of space for turnbuckle adjustment. Turnbuckle shall not be overtightened. Use 8" hand tools, maximum. PIS NUMBER Louvered 3. If signal orientation is not perpendicular to span and tether wire, Thimble w/reflective then use an anchor extension. Clamp assembly must be attached to the Safety Tie Border flat side of the extender bar. (Note 4) 4. Install safety tie at each turnbuckle. This wire shall be 1 x 19, " stainless steel. Tie should be slack, but not so slack as to contact Wire Rope Clips (3) pole. Use 3 clips per end at 3-" spacing. Tether Wire Clamp Assembly Required (see Note 6) (X) (Note 7) Wire Rope Clips (3) Thimble (Safety Tie) Wire Rope Thimble (Tether) Clip (1) S-Hook Bullring Detail A Guy Grip Anchor Shackle " x 12" Eye-Eye Forged Turnbuckle (Note 1) Strain Pole Tether Wire (Note 5) Cast Wire Rope Clip Tether Wire shall be Horizontal with Minimal or No Sag Breakaway Tether Anchor (see PIS 208522) Detail B Use Extension if Necessary Only to Clear Backplate (Note 3). Signal Head Height Adjustment shall be by Top-Mounted Extensions Only. 5. 6. 7. 8. Tether wire shall be 7-strand ASTM A475 HS or EHS Grade ". On all spans, install tether horizontally. Maintain clearance of 17 to 19 over roadway. Span wire clamp as per Standard Construction Drawing TC-81.10 required for tether wire attachment or approved equal rated at 3000 lbs or higher. Alternate attachment method shall not be permitted. Safety tie anchor height above tether is adjusted in the field before S-Hook is installed. Dimension X (Safety Tie Height) shall be adjusted so that the minimum vertical clearance of the sagging tether wire above the pavement without the S-Hook installed is at least 14. Minimum distance between the safety tie clamp and tether clamp shall be 1.5 and contain enough slack for head to sway in high winds. Safety tie anchor may be any galvanized or stainless steel pole clamp assembly rated at 3000 pounds or higher. On spans with bullrings, a tie shall be provided between messenger and tether bullrings if a 14 clearance cannot be maintained after S-Hook opening. This vertical tie shall be 1 x 19, " stainless steel. Tie shall be slightly slack, tied back using cast wire rope clips as shown. Wire rope clips shall not be over-tightened. PLAN INSERT SHEET SIG NA L TETHER A TTA C H M ENT Bearing Plate: 0.25" Galvanized Mild Steel Bar, 0.25" x 2" x 3" Typ., Inserted Between Tether Wire Strain Pole Design No. Galvanized Mild Steel S-Hook Yield Point S-Hook Wire (+10% / -20%) Diameter (Inches) (Pounds) Extender and Extender, Bolted Through 2 Holes, Edges Rounded or Chamfered 1-4 5-14 3/8 1/2 2000 3300 Span Wire Clamp Assembly Anchor Shackle Lock Wire (see Note 2) 2" Min. (see Note 2) Turnbuckle (Min. " Bolt Size) Safety Tie Thimble Thimble S-Hook: Turnbuckle End Must be Closed Breakaway Plate Chamfer or Round Outside of All Tether Wire Clamping Surfaces, 0.125". Typ., Both Sides Tether Wire Compression Spring PIS 208521 DETAIL A DETAIL B 1 1 (Top View) (Not to Scale) (Front View) (Bottom View)
Extender: Overlap at Least 3" and Fasten with at Least 2 Bolts Backplate (See Note 7) Tri-Stud Breakaway Clamp (Detail A) Center Panel May be Omitted if a Separable Part of Backplate Assembly at 2" Spacing (See Note 6) (NOTE 10) Clamp Assembly, " Slot Messenger Wire Single-Hole Extender Connector Hanger, " (Note 1) Adjustable-Drop Tri-Stud Wire Entrance Strain-Relief Spring (Note 11) (Note 4) 6" Drip Loop (Typ.) 1-4 SECTION SIGNAL HEAD SUSPENSION 2" Fluorescent Yellow Reflective Sheeting Border BACKPLATE LOUVER CONFIGURATION (Typ.) (See Note 7) Backplate (See Note 7) Spreader Bar Assembly: Cast Spreader Bar with Integral Serrated Rings Cast Wire Rope Clips (3) Spreader Bars (Note 9) Lashing Rod 3" Max. 18" 48" 5 SECTION SIGNAL HEAD SUSPENSION (NOTE 10) Field Notch One Corner of Backplate as Needed to Clear Spreader and Tether Wire Clamp Assembly, " Slot DETAIL B1: DOUBLE SPREADER BARS AND CROSS-BRACING ON DIAGONAL SPANS (FRONT VIEW) Messenger Wire Signal Cable Tape or Wrap Cables 6" Drip Loop (Typ.) 18" Cast Wire Rope Clips (3) Strain-Relief Tether Wire Cross Braces: Rounded Edges Spring (Note 11) Min. 0.125" Thick 2" Width Galvanized Steel Breakaway Clamp, Full Width, Fixed Side Fully Flat Rounded Edges DETAIL A: BREAKAWAY TETHER ANCHOR Backup Tie (Note 8) (May be Field Drilled) Direction of Vehicle Travel Under Signal (TYPICAL, SEE NOTE 6) Spreader Bars (Note 9) DETAIL B2: DOUBLE SPREADER BARS AND CROSS-BRACING ON DIAGONAL SPANS (BOTTOM VIEW) (TYP.) 1 " Min. Tether Wire: ", 7-Strand Compression Spring (Note 11) Direction of Vehicle Travel Under Signal Cast Wire Rope Clip Rounded Edges NOTES 1. Adjust hanger and span wire clamp to eliminate 2. 4. 6. all play between hanger and clamp by using shim washers as necessary. Cast " alumimum matching clamps and hangers with a tight initial fit shall be used. All signal head assemblies shall be installed in a plumb position and perpendicular to the approach lane. 3. All signal heads shall be installed with their lowest part (including tether attachment hardware and backplates) with a clearance above the roadway pavement at all points of 17 to 19. It is intended that this clearance be obtained without the use of bottom extenders, but rather by the careful selection of foundation heights, attachment heights, span wire sag, and other factors during the installation. If the installation cannot be adjusted to the proper clearance the Contractor shall advise the Engineer of all signals which exceed the maximum. The Engineer will, in consultation with the maintaining agency, direct the use of extenders or waive the maximum clearance requirement for each head. If extenders are necessary, adjustable signal hangers as detailed may be used. Only top extenders shall be used; see Note 6. Signal head rotation shall be prevented by the use of serrated rings and tri-studs or other positive devices incorporated in the signal housing and at critical locations in the supporting hardware. Only single-piece tri-stud entrance ports shall be used, not inserts. Nylon locking or deformed-thread nuts shall be used. 5. All conductors shall have adequate clearance between hangers, thimbles, bullrings, etc. in order to avoid damage from rubbing. For all tethered installations, breakaway tether anchor(s) shall be installed in bottom bracket. Bottom tether anchor extender shall be used only if there is interference between backplate and tether wire. Signal height adjustment shall be made by top- mounted extenders only. Breakaway clamp shall be full width with rounded edges. Clamp should compress tether wire only against a flat surface (Detail A). 7. All backplates shall have louvers and 2" fluorescent yellow reflective border. Border shall not be applied over louvers. Louvers should be oriented to scoop air from the front side and oriented with the openings facing alternate directions by groups, as shown. Louver open area shall be at least 8 percent of the total backplate area. 5-section backplates shall have notched top corners, as shown. 8. Backup tie shall be ", 7- strand wire identical to tether wire. Three cast wire rope clips on each side shall be used with 18" overlap and spacing as shown. Tie shall hang no lower than 16.5 above pavement, and must not rub against the breakaway clamp. Ties under 3-section heads are recommended in windy areas; shall be installed if specified in plans, or if directed by the Engineer. Spacing of clips may be adjusted to accommodate adjacent heads. Closely spaced adjacent heads may share a single backup tie and wire rope clips. There shall be a minimum of three wire rope clips between heads. 9. On diagonal spans, a double spreader bar assembly shall be used. Each spreader bar shall be cast aluminum or steel with integral serrations, two on the ends, one in the middle on the opposite side. These shall be attached as shown in Details B1 and B2. All spreader bar hardware shall be stainless steel, with nylon locking or deformed-thread nuts. 10. Multi-way heads with backplates shall not be used on tethered spans. Existing multi-way heads shall be separated as directed by the Engineer. Rewire as necessary to separate the heads per the 11. Compression spring, 0.375" OD, 0.054" wire diaproper alignment. meter, 10-12 coils per inch, stainless steel 6" minimum length. O FFICE O F RO A D W A Y ENGINEERING DESIGNED REVIEWED PLAN INSERT SHEET PIS NUMBER REVISION DATE 04-19-13 O VERHEA D SIG NA L A TTA C H M ENTS, SPA N W IRE CHECKED PIS 208522 1 1