630Traffic Signs and Sign Supports

ITEM 630 TRAFFIC SIGNS AND SIGN SUPPORTS

630.01Description. This work consists of furnishing and installing traffic signs, sign supports,

and foundations complete and ready for service. This work also includes necessary excavation and backfill, disposal of discarded materials, and restoration of disturbed facilities and surfaces to a condition equal to that existing before this work started.

630.02Materials. The acceptance of materials and products is based on Certified Test Data,

furnished in triplicate, or on test results of samples according to 106.02, as required by the Laboratory. Transfer manufacturers’ guarantees or warranties on all traffic sign material including required guarantees for sign sheeting in accordance with Supplement 1049, to the Department or other maintaining agency upon completion and acceptance of the project. Furnish materials conforming to: Concrete, Class QC Misc or QC 1[1] .................................... 499, 511 Steel: Structural steel .............................. 711.01 Reinforcing steel .......................... 509.02 U-channel posts .......................... 730.015 Square posts ................................ 730.016 Wooden Box Beam .................... 730.017 Tube and pipe ............................... 730.01 Anchor bolts and nuts ................... 730.02 Poles and arms .............................. 730.03 Base and arm plates ...................... 730.04 Handhole covers ........................... 730.05 Pole caps ....................................... 730.06 Arm caps ...................................... 730.07 Hardware ...................................... 730.08 Stainless steel ............................... 730.09 Stainless steel hardware ............... 730.10 Messenger wire ............................ 732.18 Aluminum: Sheet and plate ............................. 730.11 Extrusions ..................................... 730.12 Tube and pipe ............................... 730.13 Castings ........................................ 730.14 Forgings ........................................ 730.15 Welding rods ................................ 730.16 Hardware ...................................... 730.17 Other materials: Retroreflective sheeting, Type I ......................................... 730.18 Retroreflective sheeting, Type IV ..................................... .730.19 Retroreflective sheeting, Type IX .................................... 730.193 556 Retroreflective sheeting, Type XI .................................... 730.194 Nonreflective acrylic opaque sheeting ........................................ 730.20 Silk screen inks ............................. 730.22 Transparent acrylic electronic cuttable films ............................... 730.23 Digital Printing ............................. 730.24 [1]Provide a Concrete Cylinder Cure Box per 511.04.

630.03Shop Drawings. Furnish shop drawings according to 625.06. Submit sign support shop

drawings that cover all design types such as ground mounted, rigid overhead, span wire mounted, and overpass structure mounted supports. On the drawings, show overall height, sign clearance above foundation, span length, sign loc ations, sign overall heights and widths, and glare shield height and location, if applicable.

630.04Sign Fabrication. Sign types include flat sheet, double faced, extrusheet, and overlay

Flat sheet signs consist of one-piece units made of aluminum. Double faced signs consist of flat sheet aluminum or extruded aluminum blanks with legend on both sides. Extrusheet signs consist of a number of horizontal panels assembled to form a complete sign. Overlay signs consist of an aluminum sheet covering portions or entire surfaces of extrusheet signs. Prior to retroreflective sheeting application, clean aluminum sign surfaces either by total immersion in a tank containing an alkaline solution of the manufacturer’s specification or by steam cleaning with an alkaline solution of the manufacturer’s specification, followed by a thorough rinsing with running water. After cleaning, etch the surface with an acid solution, and dry. Do not allow cleaned and etched surfaces to become contaminated by contact with oil or grease. Drill or punch bolt holes to finish size. Use sign designs according to the OMUTCD and the Sign Designs and Markings Manual. Use the Standard Alphabets for Traffic Control Devices for positive contrast legends on all guide signs. Do not revise overall sign sizes from what is shown in the plans. The edge space between the border and the text may be adjusted from what is normally used to achieve the sign widths show n. For negative contrast legends, use the Standard Alphabets for Traffic Control Devices. Use capital legends and upper/lower case legends in accordance with the Sign Designs and Markings Manual. When either is permitted in the Sign Designs and Markings Manual, use upper/lower case legends. For flat sheet fluorescent yellow and fluorescent yellow -green warning signs, use type XI retroreflective sheeting. For other flat sheet sign types and colors, double faced mile marker, and double faced street name signs, use Type IV, IX or XI retroreflective sheeting for background and retroreflective legends. For extrusheet signs, use Type IV or Type XI retroreflective sheeting for the background, and use Type XI retroreflective sheeting for retroreflective legends, shields and symbols (including hazardous material plaque, airport symbol, arrows and borders). Use the same sheeting type to cover the entire background surface. Use the same sheeting type for the entire legend. Apply retroreflective sheeting to the surface according to the manufacturer’s recommendations, with no blisters, wrinkles, tears, or blemishes. Do not use Reboundable sheeting for permanent signs. For retroreflective legends on flat sheet, double faced mile marker and double faced street name signs, use reverse silk screen transparent ink, digital printing, transparent acrylic electronic cuttable film, or direct applied reflective sheeting copy. When using direct applied retroreflective sheeting copy, apply all legend on a sign with the same rotation angle orientation. For nonreflective legends, use direct 557 silk screen black ink or direct applied nonreflective acrylic opaque black sheeting copy. For double faced mile marker signs, use flat sheet aluminum and apply retroreflective sheeting and legend to both sides. For double faced street name signs, use extruded aluminum blanks with a minimum thickness of 0.063 inch (1.6 mm) and thicker, stiffened edges, and apply retroreflective sheeting and legend to both sides. Extrusheet panels consist of flat sheet aluminum reinforced with aluminum extrusions attached by spot welding. Panels extruded in a single operation may be used in lieu of spot welded panels. Do not use extruded panels and spot welded panels in the same si gn. Bolt together the minimum number of full length, sheeted panels to achieve the sign height, using aluminum bolts, washers, lock washers and nuts. For retroreflective legends, shields and symbols (including hazardous material plaque, airport symbol, arrows and borders) use direct applied retroreflective sheeting. Apply all retroreflective legend on a sign with the same rotation angle orientation. For nonreflective legends, use direct applied nonreflective acrylic opaque black sheeting copy. Use sheeting from the same manufacturer for both the legend and background. For overlay signs, use 0.080 -inch (2.0 mm) thick flat sheet aluminum, with a maximum panel size of 8 × 4 feet (2.4 × 1.2 m). Apply sheeting and legend as described above for extrusheet signs. Attach overlays to extrusheet signs in the shop or field using aluminum blind rivets at a maximum spacing of 18 inches (0.5 m) on the peripheries of the overlays and 24 inches (0.6 m) within the interior. Use fluorescent yellow-green Type XI retroreflective sheeting for the following signs and plaques: School (S1 -1), School Bus Stop Ahead (S3 -1), SCHOOL BUS TURN AHEAD (S3 -2), SCHOOL ENTRANCE (S3-H3), SCHOOL (S4-3P), School Speed Limit Ahead (S4 -5, S4-5a), yellow portions of School Speed Limit (S5-H1), Pedestrian Crossing (R1-6, R1-6b, R1-9), Bicycle (W11-1), Pedestrian (W11-2), Handicapped (W11-9), Bicycle/Pedestrian (W11-15), Trail Crossing (W11-15a), Playground (W15-1), and SAFETY ZONE (W15-H2). Fabricate supplemental warning plaques [such as Advisory Speed (W13-1P), SHARE THE ROAD (W16-1P), Distance (W16-2P, W16-2aP, W16-3P, W16-3aP), Supplemental Arrow (W16-5P, W16-6P, W16-7P) and AHEAD (W16-9P)] from fluorescent yellow- green Type XI retroreflective sheeting when used with a sign above. Use fluorescent yellow Type XI retroreflective sheeting for all yellow signs, yellow portions of multi-colored signs, and yellow sign post reflectors, except for signs and portions of signs required to be fabricated with fluorescent yellow-green Type XI retroreflective sheeting. For lighted signs, cover glare shield and rectangular luminaire support tube with nonreflective acrylic sheeting matching the predominant sign color. Furnish 4 × 2.5 inch (100 × 62 mm) sign identification labels of Type I retroreflective sheeting as shown in Figure 1. For signs fabricated in English based sizes, use white labels with red ink legend. For signs fabricated in hard metric based sizes, regardless of the sign message units contained on the sign face, use yellow labels with red ink legend. Place the label on the back side of the sign in the lower right corner of rectangular signs, or in an equivalent location for other sign shapes, approximately 3 inches (75 mm) from side and bottom sign edges (for smaller signs, these dimensions may be reduced). Position the label so it can be read horizontally and is clearly visible, not near bolt holes or rivets, and not obstructed by the sign support when erected. Silk screen or digitally print the fabrication data onto the face of the label, and include the month and year of fabrication, state project number, sign manufacturer name, the sign process (silkscreen, digital, cut vinyl), and the sheeting manufacturer brand. At the time of sign erection, indicate the erection data by scratching out the appropriate month and year. 558 FIGURE 1 - LABEL DESIGN Fabricate sign post reflectors with flat sheet aluminum and match the retroreflective sheeting type to the sheeting type used for the corresponding sign. Install red sign post reflectors on each post with the following post-mounted signs: Stop (R1-1), Yield (R1-2), Do Not Enter (R5-1), and Wrong Way (R5- 1a). Install yellow sign p ost reflectors on each post with the following post -mounted signs: One - Direction Large Arrow (W1-6), Two-Direction Large Arrow (W1-7), Chevron Alignment (W1-8), and Stop Ahead (W3-1).

630.05Foundations. Locate sign support foundations so the plane of the sign surface is at a right

angle to the roadway lanes served (except for signs not intended for this orientation). Install foundations in accordance with 632.14. Furnish and install a ground rod at each foundation, in accordance with

625.16

Before placing foundation concrete for embedded supports, brace the supports in a vertical position. Seven days after concrete placement, remove bracing for embedded supports and erect signs.

630.06Sign Supports. Sign supports consist of ground mounted, rigid overhead, span wire, and

overpass structure mounted types. Fabricate sign supports according to the applicable requirements of AWS D1.1 Structural Welding Code-Steel. The approval of fabricators according to 501.03 will not apply. Hot -dip galvanize steel structural members according to 711.02. Galvanize steel hardware according to 730.08. Tighten threaded fasteners, except anchor bolt nuts, by the “ “turn of the nut” method according to

513.20

Furnish anchor bolts with a leveling nut, plain washer, and anchor nut conforming to 730.02. Use anchor nuts with a plain washer against the base plate upper surface. Tighten anchor bolt nuts according to 513.20, except that under Table 513.20-3, use the “nut rotation from snug tight condition” from 1/12 to 1/6 turn instead of 1/3 turn. Apply anaerobic adhesive complying with Federal Standard MILS 46163 , Type II, Grade N to anchor bolts and other threaded connections 1/2 -inch (13 mm) diameter or larger, according to the manufacturer’s recommendations.

material and weights required. Drive the ground mounted supports into the earth or embed them in concrete, as specified. Install supports in exposed locations in accordance with the performance requirements of NCHRP 350. The support lengths shown on the plans are approximate. Determine the exact length of supports before fabrication. 559

specified driving depth. Drive posts to the specified depth without bending, distortion, or end mutilation. Do not splice posts. Do not place posts in drainage ditches. If unable to install the post at the specified location, relocate the post with the Engineer’s approval. Install posts located in paved areas through a hole provided by sleeving or core drilling. After the post is in position, patch the hole with asphalt concrete or an approved asphalt material. For groupings of flat sheet signs in multiple arrangements mounted on posts, provide sign backing assemblies. For one-way and street name sign supports, use square posts for mounting signs at right angles to other signs on the post. For temporary sign supports and their placement, conform to the OMUTCD.

steel sections. Furnish slip base connections when specified. Bolt the pieces of each beam together, and preload the assembly bolts before delivery to the project. Carefully handle assembled breakaway beams during transportation and erection. Upon erection, perform the final specified torquing on all threaded fasteners. At least 4 weeks after erecting signs on breakaway beams, inspect the breakaway feature for evidence of shifting or loose fasteners. Re -torque all loose fasteners to specified values. Loosen and re-torque slip base plate fasteners even if no shifting or looseness is detected. Apply anaerobic adhesive to the re-torqued nuts.

Furnish bolt down anchor installations in existing concrete. Furnish triangular slip base connection when specified.

pressure treated with wood preservative. Install breakaway feature after installation for supports in exposed locations.

arms, or span types supported between end frames. Furnish anchor bolts and conduit ells [at least one 2-inch (50 mm) minimum diameter] for installation in the foundation. Upon erection, set support poles and end frames on their foundations, and plumb using the leveling nuts followed by secure tightening of all leveling and anchor nuts on the anchor bolts. Plumb poles supporting cantilevered signs following erection of signs as required. Ensure that a minimum of one full thread remains on each anchor bolt above the top of the anchor nut after final tightening. Do not use concrete grouting in the space between the foundation surface and support base. Do not provide cover bases or individual anchor bolt covers on support anchor bases regardless of support location. Furnish overhead sign supports with sign attachment assemblies for attaching extrusheet signs and/or sign hanger assemblies for mounting flat sheet signs to the support chords. Attach a Support Information Tag per C&MS 732.11and in addition include the county, route, and section number of the support. Locate the tag approximately 8 feet (2.4 m) above groundline on the quadrant of the sign support facing approaching traffic. Identify sign supports spanning opposing directions of traffic with two tags, each on a support member facing traffic. 560 Rigid span supports consist of a box truss supported by single plane truss end frames. Fabricate box trusses from steel tubular members with built -in camber and mark each section “TOP”. Do not erect box trusses unless at least one sign or damping device approved by the Engineer is installed within 8 hours. Provide for the attachment of a luminaire bracket arm on combination overhead sign supports.

assemblies. Furnish anchor bolts and conduit ells [at least one 2-inch (50 mm) minimum diameter] for installation in the foundation. Achieve a span wire sag under load of 4 to 5 percent of the span. Adjust poles to be essentially vertical after span wire tensioning. Securely tighten all leveling and anchor nuts on the anchor bolts. Ensure that a minimum of one full thread remains on each anchor bolt above the top of the anchor nut after final tightening. Do not provide cover bases or individual anchor base covers on support anchor bases regardless of support location. Attach a Support Information Tag as described in 630.06.B.

bottom of the signs are in a level position, regardless of bridge slope.

supports. Use sign hanger assemblies to attach flat sheet signs to span wire or rigid overhead supports. Use sign support assemblies to attach flat sheet or extrusheet signs to poles or bridge parapets. Use sign backing assemblies for groups of signs attached to a sign post, and to attach exit number or supplemental panels to an extrusheet sign.

630.07Sign Erection. Erect signs on ground mounted or overhead supports according to the

schematic signing layout. Mount overhead signs so that the bottom of the signs are in a level position regardless of the sag of supporting messenger wire, mast arm rise, chord member or o verpass slope. Do not remove an existing sign until the replacement sign is either erected or available for immediate erection. Do not erect a replacement sign on a new support more than 24 hours before the removal of the existing sign.

Use steel bolts, wide washers, lock washers and nuts. Use bearing plates between the sign and U- channel post at each bolt. Field drill signs mounted on messenger wire or mast arms to match holes in brackets.

Use self-aligning aluminum mounting clips, stainless steel T -bolts, stainless steel washers, and stainless steel nylon insert lock nuts, to attach extrusheet signs to sign attachment assemblies, beam or U-channel post supports, and for U-channel post sections used to attach exit number and supplemental panels to extrusheet signs. Use aluminum bolts, washers, lock washers, and nuts to assemble extrusheet signs shipped in two pieces. Tighten nuts and lock nuts using hand tools only. Do not use pneumatic, hydraulic, battery, electric or other power-assisted tools.

630.08Sign Shipment and Storage. Package and ship finished flat sheet signs to assure

adequate protection of the sign face, using methods and materials as recommended by the reflective sheeting manufacturer. 561 Ship extrusheet signs up to 8 feet (2.4 m) high completely assembled. Extrusheet signs over 8 feet (2.4 m) high may be shipped in two pieces for field assembly. Keep extrusheet signs rigid by back bracing or crating. Store signs, whether provided by the Contractor or furnished by the Department, off the ground in a vertical position with adequate covering or shelter to prevent packing material from getting wet. Immediately remove packing material that does become wet from contact with sign faces to prevent damage to the reflective sheeting. Identify extrusheet signs on a detachable form on the sign back giving the project number and year, sign reference number, sign legend sketch, and station location. Identify the underlying sign for signs shipped with an attached overlay sign.

630.09Specific Service and Tourist -Oriented Directional Signs. Maintain existing Specific

Service (logo) signs, Tourist -Oriented Directional Signs (TODS), and Sponsor -A-Highway signs in accordance with 614.07 unless indicated in the plans.

630.10Covering of Signs. Install temporary covers, and subsequently remove and dispose of

them as shown on the plans or as directed by the Engineer . For the covering material, use a sturdy opaque material and obtain the Engineer’s approval of the proposed method of covering and attachment.

630.12Removal and Delivery, Storage, Reerection, or Disposal of Signs and Supports

Carefully dismantle signs and sign supports indicated for removal. Either deliver to the Department facility as designated by the plan , store on the project, re -erect, or dispose of removed signs and sign supports. To ensure maintenance of adequate traff ic control at all times, remove signs only with the Engineer’s approval. Remove sign supports in a manner to avoid damage. Remove sign service to the support by disconnecting and removing cables at the service pull-box. Ensure that connection of remaining cables conforms to 625.18. Remove support foundations to at least 1 foot (0.3 m) below subgrade or finished groundline. Backfill and restore surfaces to a condition equal to that existing before the work started and dispose of surplus material according to 105.16, 105.17 and 611.15 at no cost to the Department. Furnish mounting hardware for signs to be re-erected. Field drill as necessary. Furnish anchor bolts and conduit ells for installation in the foundation for overhead sign supports to be re-erected. Remove overlay signs so as not to damage the underlying sign.

630.13Inspection. After erection, the Engineer will inspect signs under both day and night

conditions. Correct deficiencies in lateral position or visibility to the Engineer’s satisfaction.

630.14Method of Measurement. The Department will measure Ground Mounted Post Support

by the number of feet (meters) measured from the bottom of the support to the top of the support, and will include driving, hardware for anchor base installation, and furnishing and placing of patchi ng materials for excavations in paved areas. The Department will not measure the overlap length of post for the anchor base installation. The Department will measure Foundations for ground mounted pipe supports, ground mounted structural beam supports, rigid overhead sign supports and span wire sign supports by the number of each for one pipe, structural beam, pole, end frame or strain pole, and will include excavation, dewatering, sleeving, casing, reinforcing steel, concrete, backfilling raceways, and when required the 10 foot (3m) foundation section of concrete barrier, and the disposal of surplus excavation. Sealing of the 10 foot foundation section of concrete barrier shall be paid for under Item 512 when specified in the plans. 562 The Department will measure Ground Mounted Structural Beam Support by the number of feet

and placing of patching materials for excavations in paved areas. The Department will measure Ground Mounted Pipe Support by the number of feet (meters) measured from the bottom of the foundation to the top of the sign and will include u -bracket, tubing, posts and hardware for sign attachment, bolt -down anchor and furnishing and placing of patching materials for excavations in paved areas. The Department will measure Ground Mounted Wooden Box Beam Support by the number of feet (meters), and will include u-channel post, sheet metal cap, stabilizers, hardware for sign attachment, solid concrete block, excavation, backfilling, disposal of surplus material, and installation of breakaway feature. The Department will measure One Way Support and Street Name Sign Support by the number of feet (meters) measured from the bottom of the support to the top of the support, and will include driving, hardware for anchor base installation, and furnishing and placing of patching materials for excavations in paved areas. The Department will not measure the overlap length of post for the anchor base installation. The Department will measure Temporary Sign Support by the number of feet (meters) or the number of each furnished, erected, maintained, and removed. The Department will measure Breakaway Structural Beam Connection by the number of each set of connection parts with necessary welding and drilling of holes as required for the breakaway function in one beam, and will include base plates, fuse plate, hinge plate, bolt retainer plate, and bolts assembled to specified torques. The Department will measure Triangular Slip Base Connection by the number of each set of connection parts with the necessary welding and drilling of holes as required for the breakaway function in one pipe and will include slip plate, slip base casting, locking collar, bolt retainer plate, coiled pin and bolts assembled to specified torques. The Department will measure Overhead Sign Support by the number of each, and will include anchor bolts and conduit ells furnished for the foundation, sign attachment assemblies, sign hanger assemblies and identification stickers when specified. The Department will measure Combination Overhead Sign Support with light pole extension by the number of each, and will include anchor bolts and conduit ells furnished for the foundation, sign attachment assemblies, sign hanger assemblies and identification stickers when specified. Bracket arms and roadway lighting luminaires are not included. The Department will measure Sign Attachment Assembly by the number of separately itemized assemblies, and will include one overhead sign bracket, U-bolts, clamps, and miscellaneous hardware. The Department will measure Luminaire Support Assembly by the number of separately itemized assemblies, and will include one support arm, other necessary structural members, and miscellaneous hardware. The Department will measure Span Wire Sign Support by the number of each support, and will include two strain poles with span wire clamps and anchor shackles, anchor bolts and conduit ells furnished for foundations, messenger wire, clamps, thimbles, and sign hanger assemblies with hangers, braces, lengths of post, and miscellaneous hardware. The Department will measure Overpass Structure Mounted Sign Support by the number of each support, and will include attachment work and hardware, to attach one individual sign. 563 The Department will measure Sign Hanger Assembly by the number of each, and will include all parts necessary to attach one individual sign. For pole mounted sign supports, the Department will measure Sign Support Assembly by the number of each, and will include brackets, hardware, and posts sufficient to attach each sign or set of signs to an individual pole. For bridge mounted sign supports, the Department will measure Sign Support Assembly by the number of each, and will include post, hardware, and attachment work. The Department will measure Sign by the number of square feet (square meters) of signs, and will include the furnishing of identification stickers, sign backing assemblies, mounting bolts, washers, nuts, bearing plates, clips, and rivets. For square, rectangular, circular, or irregulars haped signs, the Department will determine measurement by multiplying the largest dimensions of width and height. For triangular shaped signs, the Department will determine measurement by multiplying the largest dimension of width and one-half the largest dimension of height. The Department will include the area of the glare shields for lighted signs as an integral part of the sign. The Department will measure Sign Post Reflector by the number of each, and will include the furnishing of mounting bolts, washers and nuts. The Department will measure Sign, Double-Faced by the number of each, and will include mounting fittings and hardware. The Department will measure Sign Erected by the number of square feet (square meters) of signs erected, and will include mounting hardware, the assembly of signs that are in more than one piece and the installation of required sign backing assemblies. The Department will exclude the furn ishing of signs. For square, rectangular, circular, or irregular shaped signs, the Department will determine measurement by multiplying the largest dimensions of width and height. For triangular shaped signs, the Department will determine measurement by mu ltiplying the largest dimension of width and one - half the largest dimension of height. The Department will include the area of the glare shields for lighted signs as an integral part of the sign. The Department will measure Sign Backing Assembly by the number of separately itemized assemblies, and will include back bracing for each group of flat sheet signs attached to a post or posts, or a single assembly for backing posts used to attach an exit or supplemental panel to a guide sign. The Department will measure Covering of Sign by the number of square feet (square meters) of sign face covered, and will include the subsequent removal and disposal of the covering. The Department will measure Removal and Delivery, Storage, Reerection, or Disposal of Sign by the number of each sign removed and delivered, stored, re -erected or disposed of. Major signs are defined for measurement as being 40 square feet (3.7 m²) or larger. The Department will measure Removal and Delivery, Storage, Reerection, or Disposal of Support by the number of each support removed and delivered, stored, re -erected or disposed of, and will include removal of foundations and restoration of surfaces. With reerection, the Department will include furnishing of anchor bolts, conduit ells, necessary field drilling, and hardware.

630.15Basis of Payment. The Department will not pay for relocating posts from their planned

location without prior approval by the engineer. The Department will pay for accepted quantities at the contract prices as follows: Item Unit Description Each Ground Mounted Structural Beam Support 564 Foundation Each Ground Mounted Pipe Support Foundation Each Foundation, Type TC-_____ Foot (Meter) Ground Mounted Support, ___ Post Foot (Meter) Ground Mounted Structural Beam Support, ___ Beam Foot (Meter) Ground Mounted Support, Pipe Foot (Meter) Ground Mounted Wooden Box Beam Support,_____Beam Foot (Meter) One-Way Support, ___ Post Foot (Meter) Street Name Sign Support, ___ Post Foot (Meter) Temporary Sign Support, ___ Post or Each Each Breakaway Structural Beam Connection Each Triangular Slip Base Connection Each Overhead Sign Support, Type TC-___, Design___ Each Combination Overhead Sign Support, Type TC-___, Design___ Each Sign Attachment Assembly Each Luminaire Support Assembly Each Span Wire Sign Support, Type TC-17.11, Design ___ Each Overpass Structure Mounted Sign Support, Type TC-___, Design___ Each Sign Hanger Assembly, (Span Wire, Mast Arm) Each Sign Support Assembly, (Pole or Bridge Mounted) Square Foot Sign, (Flat Sheet, Ground (Square Meter) Mounted Extrusheet, Overhead Extrusheet, Overlay) Each Sign, Double-Faced, (Street Name, Mile Marker) Square Foot Sign Erected, (Flat Sheet, (Square Meter) Extrusheet, Overlay) Each Sign Backing Assembly Each Sign Post Reflector Square Foot Covering of Sign (Square Meter) Each Removal of Ground Mounted (Major) Sign and (Delivery, Storage, Reerection, or Disposal) Each Removal of Ground Mounted (Structural Beam, Post, Pipe, Wooden Box Beam) Support and (Delivery, Storage or Disposal) Each Removal of Overhead Mounted Sign and (Delivery, Storage, Reerection, or Disposal) 565 Each Removal of Overhead Sign Support and (Delivery, Storage, Reerection, or Disposal), Type TC-___ Each Removal of Overlay Sign 566