Montgomery County Specification Download Acknowledgement

Transcription

1 Montgomery County Specification Download Acknowledgement Request for Bid or Proposal Project # CALVARY ROAD RECONSTRUCTION PRECINCT 1 PLANS ONLY VENDORS MUST IMMEDIATELY RETURN THIS FORM BY purchasing@mctx.org Vendor Responsibilities o Vendors must download and complete any addenda o Vendors must submit responses in accordance with requirements stated on cover of document o Vendor must submit 1295 form with Bid/Proposal Detailed information regarding 1295 can be found under item 49 in the attached Terms and Conditions. Texas Ethics Commission website for 1295: For completing the 1295: Contract ID: 2539 Description: Project Montgomery County will not be responsible for inaccurate or incomplete specifications and/or addenda pertaining to any bid/proposal that is received electronically. Legal Name of Contracting Company Contact Person Complete Mailing Address Telephone Number Address Signature Date P:/Forms/Disclaimer Forms/Specs Download Request

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11 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- X sion of this standard to other formats or for incorrect results or damages resulting from its use. Warning Sign Sequence in Opposite Direction Same as Below R1-2 42" X 42 " X 42" R1-2aP 48" X 36" (See note 8) Channelizing devices separate work space from traveled way 100' 30' Min. 100' Approx. Devices at 15' 50' Min. B Work Space 150' Min. 20' spacing 100' Max. Devices at 20' spacing G " X 24" Shadow Vehicle with TMA and high intensity rotating, flashing, oscillating or strobe lights.(see notes 5 & 6) R1-2 42" X 42 " X 42" CW3-4 48" X 48" (See note 2) CW " X 48" CW16-2P 24" X 18" (See note 2) Except in emergencies, flagger stations shall be illuminated at night Shadow Vehicle with TMA and high intensity rotating, flashing, oscillating or strobe lights. (See notes 5 & 6) CW20-4D 48" X 48" X 200' 30' Min. 150' Work Space B X Min. X 100' Approx. Devices at 20' spacing X CW " X 48" CW20-1D 48" X 48" (Flags- See note 1) G " X 24" Posted Formula Speed * ** * Conventional Roads Only LEGEND Type 3 Barricade Channelizing Devices Truck Mounted Heavy Work Vehicle Attenuator (TMA) Trailer Mounted Portable Changeable Flashing Arrow Board M Message Sign (PCMS) Sign Traffic Flow Flag Flagger Minimum Desirable Taper Lengths ** 10' 11' 12' Offset OffsetOffset Taper lengths have been rounded off. Suggested Maximum Minimum Spacing of Suggested Stopping Sign Channelizing Longitudinal Sight Spacing Devices Buffer Space Distance "X" On a On a "B" Distance Taper Tangent ' 165' 180' 30' 60' 120' 90' 200' 2 WS 35 L= 205' 225' 245' 35' 70' 160' 120' 250' ' 295' 320' 40' 80' 240' 155' 305' ' 495' 540' 45' 90' 320' 195' 360' ' 550' 600' 50' 100' 400' 240' 425' ' 605' 660' 55' 110' 500' 295' 495' L=WS ' 660' 720' 60' 120' 600' 350' 570' ' 715' 780' 65' 130' 700' 410' 645' ' 770' 840' 70' 140' 800' 475' 730' ' 825' 900' 75' 150' 900' 540' 820' L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH) TYPICAL USAGE SHORT SHORT TERM INTERMEDIATE LONG TERM MOBILE DURATION STATIONARY TERM STATIONARY STATIONARY GENERAL NOTES 1. Flags attached to signs where shown are REQUIRED. 2. All traffic control devices illustrated are REQUIRED, except those denoted with the triangle symbol may be omitted when stated elsewhere in the plans, or for routine maintenance work, when approved by the Engineer. 3. The CW3-4 "BE PREPARED TO STOP" sign may be installed after the CW20-4D "ONE LANE ROAD AHEAD" sign, but proper sign spacing shall be maintained. 4. Sign spacing may be increased or an additional CW20-1D "ROAD WORK AHEAD" sign may be used if advance warning ahead of the flagger or R1-2 "YIELD" sign is less than 1500 feet. 5. A Shadow Vehicle with a TMA should be used anytime it can be positioned 30 to 100 feet in advance of the area of crew exposure without adversely affecting the performance or quality of the work. If workers are no longer present but road or work conditions require the traffic control to remain in place, Type 3 Barricades or other channelizing devices may be substituted for the Shadow Vehicle and TMA. 6. Additional Shadow Vehicles with TMAs may be positioned off the paved surface, next to those shown in order to protect wider work spaces. X R1-2aP 48" X 36" (See note 8) Except in emergencies, flagger stations shall be illuminated at night 50' Min. 100" Max. Devices at 20' spacing CW16-2P 24" X 18" (See note 2) TCP (1-2a) 7. R1-2 "YIELD" sign traffic control may be used on projects with approaches that have adequate sight distance. For projects in urban areas, work spaces should be no longer than one half city block. In rural areas on roadways with less than 2000 ADT, work spaces should be no longer than 400 feet. 8. R1-2 "YIELD" sign with R1-2aP "TO ONCOMING TRAFFIC" plaque shall be placed on a support at a 7 foot minimum mounting height. X TCP (1-2b) X CW3-2 48" X 48" X CW3-4 48" X 48" (See note 2) 9. Flaggers should use two-way radios or other methods of communication to control traffic. 10. Length of work space should be based on the ability of flaggers to communicate. 11. If the work space is located near a horizontal or vertical curve, the buffer distances should be increased in order to maintain adequate stopping sight distance to the flagger and a queue of stopped vehicles (see table above). 12. Channelizing devices on the center-line may be omitted when a pilot car is leading traffic and approved by the Engineer. 13. Flaggers should use 24" STOP/SLOW paddles to control traffic. Flags should be limited to emergency situations. CW20-4D X 48" X 48" Texas Department of Transportation CW20-4D Traffic Operations Division DATE: FILE: TCP (1-2a) ONE LANE TWO-WAY CONTROL WITH YIELD SIGNS (Less than 2000 ADT - See note 7) CW20-1D 48" X 48" (Flags- See note 1) 48" X 48" CW20-1D 48" X 48" (Flags- See note 1) G " X 24" X TCP (1-2b) ONE LANE TWO-WAY CONTROL WITH FLAGGERS For construction or maintenance contract work, specific project requirements for shadow vehicles can be found in the project GENERAL NOTES for Item 502, Barricades, Signs and Traffic Handling. TRAFFIC CONTROL PLAN ONE-LANE TWO-WAY TRAFFIC CONTROL TCP(1-2)-12 C TxDOT December 1985 DN: TXDOT CK: TXDOT DW: TXDOT CK: TXDOT REVISIONS CONT SECT JOB DIST COUNTY SHEET NO

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14 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- sion of this standard to other formats or for incorrect results or damages resulting from its use. MINOR TWO-WAY STREET MINOR CROSS STREET (ONE-WAY, NON-SIGNALIZED) MINOR CROSS STREET (TWO-WAY, NON-SIGNALIZED) Varies (See note 3) 4" yellow broken Varies (See note 3) SEE DETAIL A ** *** 3' 9' 3' 9' Varies *** Varies based on length of turn bay Typically equal to the length of storage lane 1 Mile (Auxiliary Lane) 48' 1 Mile (Lane Drop) 48' 4" white broken Dotted 8" white Lane Line Dotted 8" white Lane Line 4" yellow broken Type I-C 4" white broken 4" yellow solid 4" white SEE DETAIL B TYPICAL TWLTL AT TWO-WAY CROSS STREET AND RIGHT TURN LANE DROP SEE DETAIL C SEE DETAIL C ONLY ONLY ONLY ONLY 4" yellow solid Type II-A-A spaced at 20' Type I-C 8" white (Typ) broken Type I-C or Type II-C-R spaced at 20' MAJOR CROSS STREET 24" White (typ.) 4" yellow broken 4" Yellow Solid 20' 3-4" Type II-A-A Markers 3-4" 4" Yellow Solid DETAIL A 6' 4' min. typ. 1'-6" 12" White 24" White crosswalk Stop Line lines Final placement of Stop Bar and Crosswalk shall be approved by the Engineer in the field. DETAIL B MATERIAL SPECIFICATIONS PAVEMENT MARKERS (REFLECTORIZED) EPOXY AND ADHESIVES BITUMINOUS ADHESIVE FOR PAVEMENT MARKERS TRAFFIC PAINT HOT APPLIED THERMOPLASTIC PERMANENT PREFABRICATED PAVEMENT MARKINGS 32' typical DMS-4200 DMS-6100 DMS-6130 DMS-8200 DMS-8220 DMS ' 32' ONLY Type I-C DETAIL C GENERAL NOTES 8" white solid ONLY 1. Refer elsewhere in plans for additional RPM placement and details. 2. Lane use word and arrow markings shall be used where through lanes approaching an intersection become mandatory turn lanes. Lane use word and arrow markings should be used in auxiliary lanes of substantial length. Lane use arrow markings or word and arrow markings may be used in other lanes and turn bays for emphasis. Details for words and arrows as shown in the Standard Highway Sign Designs for Texas. 3. When lane used word and arrow markings are used, two sets of arrows should be used if the length of the bay is greater than 180 feet. When a single lane use arrow or word and arrow marking is used for a short turn lane, it should be located at or near the upstream end of the full-width turn lane. TYPICAL TWLTL AT ONE-WAY STREET AND RIGHT TURN AUXILIARY LANE Type II-A-A Markers 4" Yellow All pavement marking materials shall meet the required Departmental Material Specifications as specified by the plans. 4. Other crosswalk patterns as shown in the "Texas Manual on Uniform Traffic Control Devices" may be used. 5. Raised pavement marker Type I-C with undivided highways, flush medians and two way left turn lanes. Raised pavement marker Type II-C-R with divided highways and raised medians. 20' Solid 20' Type II-A-A Markers 6. A two-way left-turn (TWLT) lane-use arrow pavement marking should be used at or just downstream from the beginning of a two-way left-turn lane within a corridor. Repeating the marking after each intersection or dedicated turn bay is not required unless stated elsewhere in the plans ' Full Lane Width Typical 12' Min. Texas Department of Transportation Traffic Operations Division SEE DETAIL A PAVEMENT MARKINGS FOR 20' 1" (Typ) See note 6 TWO-WAY LEFT TURN LANES DIVIDED S AND RURAL LEFT TURN BAYS 8" White (typ.) See Note 5 PM(3)-12 C TxDOT April 1998 DN: CK: DW: CK: TXDOT TXDOT TXDOT TXDOT DATE: FILE: TYPICAL TWO-LANE INTERSECTION WITH LEFT TURN BAYS TYPICAL TRANSITION FOR TWLTL AND DIVIDED REVISIONS 2-12 CONT DIST SECT JOB COUNTY SHEET NO. 22C

15 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- sion of this standard to other formats or for incorrect results or damages resulting from its use. SIGN SUPPORT DESCRIPTIVE CODES (Descriptive Codes correspond to project estimate and quantities sheets) SM RD SGN ASSM TY Post Type FRP = Fiberglass Reinforced Plastic Pipe (see SMD(FRP)) TWT = Thin-Walled Tubing (see SMD(TWT)) 10BWG = 10 BWG Tubing (see SMD(SLIP-1) to (SLIP-3)) S80 = Schedule 80 Pipe (see SMD(SLIP-1) to (SLIP-3)) Number of Posts (1 or 2) Anchor Type UA = Universal Anchor - Concreted (see SMD(FRP) and (TWT)) UB = Universal Anchor - Bolted down (see SMD(FRP) and (TWT)) WS = Wedge Anchor Steel - (see SMD(TWT)) WP = Wedge Anchor Plastic (see SMD(TWT)) SA = Slipbase - Concreted (see SMD(SLIP-1) to (SLIP-3)) SB = Slipbase - Bolted Down (see SMD(SLIP-1) to (SLIP-3)) Sign Mounting Designation No more than 2 sign posts should be located within a 7 ft. circle. U-bolt Sign Panel TYPICAL SIGN ATTACHMENT DETAIL Sign Post 7 ft. diameter circle Single Signs Sign Clamp nut XXXXX(X)XX(X-XXXX) P = Prefab. "Plain" (see SMD(SLIP-1) to (SLIP-3), (TWT), (FRP)) T = Prefab. "T" (see SMD(SLIP-1) to (SLIP-3), (TWT)) U = Prefab. "U" (see SMD(SLIP-1) to (SLIP-3)) IF REQUIRED 1EXT or 2EXT = Number of Extensions (see SMD(SLIP-1) to (SLIP-3), (TWT)) BM = Extruded Wind Beam (see SMD(SLIP-1) to (SLIP-3)) WC = 1.12 #/ft Wing Channel (see SMD(SLIP-1) to (SLIP-3)) EXAL = Extruded Aluminum Sign Panels (see SMD(SLIP-3)) Not Acceptable Nut, lock washer Nylon washer, flat washer, lock washer, nut 7 ft. diameter circle Nylon washer, flat washer, lock washer, Sign Clamp Acceptable Back-to-Back Signs Sign Post REQUIRED CLEARANCE FOR BREAKAWAY SUPPORT Non-breakaway portion of support (i.e., stub). To avoid vehicle undercarriage snagging, any substantial remains of a breakaway support, when it is broken away, should not project more than 4 inches above a 60-inch chord (i.e., typical space between wheel paths). 7 ft. diameter circle Sign Panel 4" max. Nut, lock washer 60" TEXAS TX-DOT 7 ft. diameter circle Not Acceptable Not Acceptable 7.5 ft max 7.0 ft min * Travel Lane Ground Surface Paved Shoulder Travel Lane Paved 12 ft min Shoulder 0 to 6 ft INTERSECTION AHEAD LESS THAN 6 FT. WIDE the edge of the travel lane. 7.5 ft max 7.0 ft min * When the shoulder is 6 ft. or less in width, the sign must be placed at least 12 ft. from Travel Lane Paved Shoulder INTERSECTION AHEAD BEHIND GUARDRAIL PAVED SHOULDERS 7.5 ft max 7.0 ft min * Travel Lane BEHIND BARRIER SIGN LOCATION 6 ft min Paved Shoulder Greater than 6 ft INTERSECTION AHEAD 7.5 ft max 7.0 ft min * GREATER THAN 6 FT. WIDE When the shoulder is greater than 6 ft in width, the sign must be placed at least 6 ft. from the edge of the shoulder. 5 ft min** 2 ft min** Guard Rail SIGNS WITH PLAQUES When a supplemental plaque or secondary sign is used, the 7 ft sign height is measured to the bottom of the supplemental plaque or secondary sign. Travel Lane Travel Lane Paved Shoulder INTERSECTION AHEAD 7.5 ft max 7.0 ft min * BEHIND CONCRETE BARRIER RESTRICTED RIGHT-OF-WAY Paved Shoulder Concrete Barrier **Sign clearance based on distance required for proper guard rail or concrete barrier performance. FT IN 14 4 LOW CLEARANCE 35 M.P.H. EAST ROAD FARM 3713 CURB & GUTTER OR RAISED ISLAND EAST ROAD FARM (When 6 ft min. is not possible.) Maximum possible INTERSECTION 7.5 ft max 7.0 ft min * AHEAD *** T-INTERSECTION 12 ft min 6 ft min 7.5 ft max 7.0 ft min * Travel Lane Paved Shoulder When this sign is needed at the end of a two-lane, two way roadway, the right edge of the sign should be in line with the centerline of the roadway. Place as close to ROW as practical. WEST EAST ROW Paved Shoulder Edge of Travel Lane STOP * Signs shall be mounted using the following condition that results in the greatest sign elevation: (1) a minimum of 7 to a maximum of 7.5 feet above the edge of the travel lane or (2) a minimum of 7 to a maximum of 7.5 feet above the grade at the base of the support when sign is installed on the backslope. The maximum values may be increased when directed by the Engineer. See the Traffic Operations Division website for detailed drawings of sign clamps, Triangular Slipbase System components and Wedge Anchor System components. The website address is: Texas Department of Transportation Traffic Operations Division DATE: FILE: Bolts used to mount sign panels to the clamp are 5/16-18 UNC galvanized square head with nut, nylon washer, flat washer and lock washer. The bolt length is 1 inch for aluminum. When two sign clamps are used to mount signs back-to-back, use a 5/16-18 UNC galvanized hex head per ASTM A307 with nut and helical-spring lock washer. The approximate bolt lengths for various post sizes and sign clamp types are given in the table at right. The bolt length may need to be adjusted depending upon field conditions. Sign clamps may be either the specific size clamp or the universal clamp. Clamp Bolt Sign Panel Nylon washer, flat washer, lock washer, Sign Bolt nut Approximate Bolt Length Pipe Diameter Specific Clamp Universal Clamp 2" nominal 3" 3 or 3 1/2" 2 1/2" nominal 3 or 3 1/2" 3 1/2 or 4" 3" nominal 3 1/2 or 4" 4 1/2" Face of Curb 2 ft min INTERSECTION AHEAD 2 ft min 7.5 ft max 7.0 ft min * Face of Curb Right-of-way restrictions may be created by rocks, water, vegetation, forest, buildings, a narrow island, or other factors. In situations where a lateral restriction prevents the minimum horizontal clearance from the edge of the travel lane, signs should be placed as far from the travel lane as practical. *** Post may be shorter if protected by guardrail or if Engineer determines the post could not be hit due to extreme slope. SIGN MOUNTING DETAILS SMALL ROADSIDE SIGNS GENERAL NOTES & DETAILS SMD(GEN)-08 C TxDOT July 2002 DN: TXDOT CK: TXDOT DW: TXDOT CK: TXDOT REVISIONS CONT SECT JOB 9-08 DIST COUNTY SHEET NO. 26A

16 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- sion of this standard to other formats or for incorrect results or damages resulting from its use. TRIANGULAR SLIPBASE INSTALLATION GENERAL REQUIREMENTS Post Bolt 10 BWG Tubing or Keeper Plate Schedule 80 Pipe (See General Note 3) Slip Base 5/8" structural bolts (3), nuts (3), and washers Washers (6) per ASTM A325 if required by or A449 and manufacturer galvanized per Item 445 "Galvanizing." Bolt length is 2 1/2". 4" Max. Stub 3/4 " diameter hole. Provide a 36" 7" x 1/2" diameter rod or #4 rebar. Class A concrete 42" 12" min. 24" max. Non-reinforced concrete footing (shall be used unless noted elsewhere in the plans). Foundation should take approx. 2.5 cf of concrete. 12" Dia SM RD SGN ASSM TY XXXXX(X)SA(X-XXXX) NOTE There are various devices approved for the Triangular Slipbase System. Please reference the Material Producer List for approved slip base systems. list.htm The devices shall be installed per manufacturers' recommendations. Installation procedures shall be provided to the Engineer by Contractor. GENERAL NOTES: 1. Slip base shall be permanently marked to indicate manufacturer. Method, design, and location of marking are subject to approval of the TxDOT Traffic Standards Engineer. 2. Material used as post with this system shall conform to the following specifications: 10 BWG Tubing (2.875" outside diameter) 0.134" nominal wall thickness Seamless or electric-resistance welded steel tubing or pipe Steel shall be HSLAS Gr 55 per ASTM A1011 or ASTM A1008 Other steels may be used if they meet the following: 55,000 PSI minimum yield strength 70,000 PSI minimum tensile strength 20% minimum elongation in 2" Wall thickness (uncoated) shall be within the range of 0.122" to 0.138" Outside diameter (uncoated) shall be within the range of 2.867" to 2.883" Galvanization per ASTM A123 or ASTM A653 G210. For precoated steel tubing (ASTM A653), recoat tube outside diameter weld seam by metallizing with zinc wire per ASTM B833. Schedule 80 Pipe (2.875" outside diameter) 0.276" nominal wall thickness Steel tubing per ASTM A500 Gr C Other seamless or electric-resistance welded steel tubing or pipe with equivalent outside diameter and wall thickness may be used if they meet the following: 46,000 PSI minimum yield strength 62,000 PSI minimum tensile strength 21% minimum elongation in 2" Wall thickness (uncoated) shall be within the range of 0.248" to 0.304" Outside diameter (uncoated) shall be within the range of 2.855" to 2.895" Galvanization per ASTM A See the Traffic Operations Division website for detailed drawings of sign clamps and Texas Universal Triangular Slipbase System components. The website address is: 4. Sign supports shall not be spliced except where shown. Sign support posts shall not be spliced. ASSEMBLY PROCEDURE Foundation 1. Prepare 12-inch diameter by 42-inch deep hole. If solid rock is encountered, the depth of the foundation may be reduced such that it is embedded a minimum of 18 inches into the solid rock. 2. The Engineer may permit batches of concrete less than 2 cubic yards to be mixed with a portable, motor-driven concrete mixer. For small placements less than 0.5 cubic yards, hand mixing in a suitable container may be allowed by Engineer. Concrete shall be Class A. 3. Push the pipe end of the slip base stub into the center of the concrete. Rotate the stub back and forth while pushing it down into the concrete to assure good contact between the concrete and stub. Continue to work the stub into the concrete until it is between 2 to 4 inches above the ground. 4. Plumb the stub. Allow a minimum of 4 days to set, unless otherwise directed by the Engineer. 5. The triangular slipbase system is multidirectional and is designed to release when struck from any direction. Support 1. Cut support so that the bottom of the sign will be 7 to 7.5 feet above the edge of the travelway (i.e., edge of the closest lane) when slip plate is below the edge of pavement or 7 to 7.5 feet above slip plate when the slip plate is above the edge of the travelway. The cut shall be plumb and straight. 2. Attach sign to support using connections shown. When multiple signs are installed on the same support, ensure the minimum clearance between each sign is maintained. See SMD(SLIP-2) for clearances based on sign types. CONCRETE ANCHOR 6" min to edge or joint 5/8" diameter Concrete Anchor - 8 places (embed a minimum of 5 1/2" and torque to min. of 50 ft-lbs). Anchor may be expansion or adhesive type. SM RD SGN ASSM TY XXXXX(X)SB(X-XXXX) Concrete anchor consists of 5/8" diameter stud bolt with UNC series bolt threads on the upper end. Heavy hex nut per ASTM A563, and hardened washer per ASTM F436. The stud bolt shall have a minimum yield and ultimate tensile strength of 50 and 75 KSI, respectively. Nuts, bolts and washers shall be galvanized per Item 445, "Galvanizing." Adhesive type anchors shall have stud bolts installed with Type III epoxy per DMS-6100, "Epoxies and Adhesives." Adhesive anchors may be loaded after adequate epoxy cure time per the manufacturer's recommendations. Top of bolt shall extend at least flush with top of the nut when installed. The anchor, when installed in 4000 psi normalweight concrete with a 5 1/2" minimum embedment, shall have a minimum allowable tension and shear of 3900 and 3100 psi, respectively. Texas Department of Transportation Traffic Operations Division SIGN MOUNTING DETAILS SMALL ROADSIDE SIGNS TRIANGULAR SLIPBASE SYSTEM SMD(SLIP-1)-08 C TxDOT July 2002 DN: TXDOT CK: TXDOT DW: TXDOT CK: TXDOT REVISIONS CONT SECT JOB 9-08 DATE: FILE: DIST COUNTY SHEET NO. 26B

17 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- sion of this standard to other formats or for incorrect results or damages resulting from its use SM RD SGN ASSM TY XXXXX(1)XX(P) SM RD SGN ASSM TY XXXXX(1)XX(U) "U" Extender See Detail F 11FT 9IN (max) 1 1 SM RD SGN ASSM TY XXXXX(1)XX(T) 8 W(max)=6FT H 8 W W SM RD SGN ASSM TY XXXXX(1)XX(U) ONE-WAY Gap between (R6-1) or plaques Street Name shall be Aluminum Sign Sign (if required) Panel STOP (R1-1) or YIELD (R1-2) See Extruded Alum. Windbeam Detail D (See SMD(2-1)) Top View PLAQUE = 1 - variable length Detail A STOP = 2-32 inch pieces YIELD = 1-8 inch piece & 1-32 inch piece SM RD SGN ASSM TY XXXXX(1)XX(P-BM) 1.12 #/ft Wing Channel See Detail A 40 See Detail B See Detail C Aluminum Sign Panel SM RD SGN ASSM TY XXXXX(1)XX(U-WC) (See Note 11) Wing Channel Side View SIDE VIEW Nylon washer, 5/16" x 1 3/4" hex bolt with nut, lock washer, 2 flat washers per ASTM A307 Wing galvanized per Channel Item 445, Sign Clamp "Galvanizing." (Specific or Universal) 5/16" x 3 3/4" Wing hex bolt with Channel nut, lock washer Top View and flat washer per ASTM A307 galvanized per Detail B Item 445, "Galvanizing." Drill 7/16" hole 3/8" x 3 1/2" heavy hex (through) after bolt with nut, lock washer assembly and install and 2 flat washers per ASTM bolt, nut, 2 flat 1 1/2" A307 galvanized per washers and Item 445 "Galvanizing." lock washer. Extender Detail F U-Bracket Splices shall only be allowed behind the sign substrate. Nylon washer, T&U Bracket 5/16" x 1 3/4" hex bolt with nut, lock washer, 1/2" x 4" heavy 2 flat washers hex bolt, nut, lock per ASTM A307 washer and 2 flat galvanized per washers per ASTM Item 445, A307 galvanized per "Galvanizing." Item 445, "Galvanizing." 5/16" x 3/4" hex bolt with nut, lock washer and 2 flat washers per ASTM A307 Post galvanized per Item 445, "Galvanizing." Detail E Detail C Regulatory GENERAL NOTES: 1. SIGN SUPPORT # OF POSTS MAX. SIGN AREA 10 BWG 1 16 SF 10 BWG 2 32 SF Sch SF Sch SF 2. The Engineer may require that a Schedule 80 post be used in place of a 10 BWG where a sign height is abnormally high due to a fill slope. 3. Sign supports shall not be spliced except where shown. Sign support posts shall not be spliced. 4. Aluminum sign blanks shall conform to Departmental Material Specifications DMS-7110 and shall have the following minimum thicknesses: for signs less than 7.5 sq. ft., for signs 7.5 to 15 sq. ft., and for signs greater than 15 sq. ft. 5. Signs that require specific supports due to reasons in addition to windloading are indicated on the "REQUIRED SUPPORT" table on this sheet. 6. For horizontal rectangular signs fabricated from flat aluminum, T-brackets are used for signs 24 inches or less in height. U-brackets are used for signs of greater height. 7. When two triangular slipbase supports are used to support a single sign, they shall not be "rigidly" connected to each other except through the sign panel. This will allow each support to act independently when impacted by an errant vehicle. 8. Wing channel shall meet ASTM A 1011 SS Gr 50 and be galvanized per ASTM A Excess pipe, wing channel, or windbeam shall be cut off so that it does not extend beyond the sign panel (i.e., excess support shall not be visible when the sign is viewed from the front.) Repair galvanized coating at cut support ends per Item 445, "Galvanizing." 10. Additional route markers may be added vertically, provided the total sign area does not exceed the maximum allowable amount per Note Additional sign clamp required on the "T-bracket" post for 24 inch height signs. Place the clamp 3 inches above bottom of sign when possible. 12.Post open ends shall be fitted with Friction Caps. 13.Sign blanks shall be the sizes and shapes shown on the plans. REQUIRED SUPPORT SIGN DESCRIPTION SUPPORT 48-inch STOP sign (R1-1) TY 10BWG(1)XX(P-BM) 60-inch YIELD sign (R1-2) TY 10BWG(1)XX(P-BM) 48x16-inch ONE-WAY sign (R6-1) TY 10BWG(1)XX(P-BM) 36x48, 48x36, and 48x48-inch signs W(max)=6FT W 5W 8 3/8" x 3 1/2" square head bolt, nut, flat washer and lock washer per ASTM A307 galvanized per Item 445 "Galvanizing." (Bolt length may vary TOP VIEW Extruded Aluminum Windbeam (see SMD(2-1)) Sign Clamp (Specific or Universal) Post Sign Clamp (Specific or Universal) Warning 48x60-inch signs 48x48-inch signs (diamond or square) 48x60-inch signs 48-inch Advance School X-ing sign (S1-1) 48-inch School X-ing sign (S2-1) Large Arrow sign (W1-6 & W1-7) TY S80(1)XX(T) TY S80(1)XX(T) See Detail E depending on sign clamp type and pipe diameter.) Detail D Friction caps may be manufactured from hot rolled Texas Department of Transportation Traffic Operations Division SM RD SGN ASSM TY S80(1)XX(U-1EXT) 0.25 H W(max)=8FT H * SM RD SGN ASSYM TY XXXXX(2)XX(P) SM RD SGN ASSM TY S80(1)XX(U-2EXT) All dimensions are in english unless detailed otherwise. +.05" Skirt Variation Depth FRICTION CAP DETAIL 1" min, Pipe O.D. 1.75" max -.025"+.010" or cold rolled steel sheets. The minimum sheet metal thickness shall be 24 gauge for all cap sizes. The rim edges shall be reasonably straight and smooth. Caps shall be sized and formed in such a manner as to produce a drive-on friction fit and have no tendency to rock when seated on the pipe. The depth shall be sufficient to give positive protection against entrance of rainwater. They shall be free of sharp creases or indentations SIGN MOUNTING DETAILS SMALL ROADSIDE SIGNS TRIANGULAR SLIPBASE SYSTEM SMD(SLIP-2)-08 DATE: FILE: 0.2W W 0.6W 0.2W SM RD SGN ASSM TY XXXXX(1)XX(T) (* - See Note 12) Rolled Crimp to engage pipe O.D. Pipe O.D "+.010" and show no evidence of metal fracture. Caps shall have an electrodeposited coating of zinc in accordance with the requirements of ASTM B633 Class FE/ZN 8. C TxDOT July 2002 DN: TXDOT CK: TXDOT DW: TXDOT CK: TXDOT REVISIONS CONT SECT JOB 9-08 DIST COUNTY SHEET NO. 26C

18 DISCLAIMER: The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver- sion of this standard to other formats or for incorrect results or damages resulting from its use. W(min)>8FT 0.25 H W(max)=16FT H See Detail C * 0.15W 0.7W 0.15W W SM RD SGN ASSM TY XXXXX(1)XX(T-2EXT) (* - See Note 12) Extruded Alum. Windbeam (See Detail D on SMD (SLIP-2)) or 1.12 #/ft Wing Channel (See Detail A and Detail B) 8" See Detail A W(max)=15FT H See Detail B 8" 8 1/2" 8 1/2" W-39" 39" W-39" 2 2 W SM RD SGN ASSM TY XXXXX(1)XX(U-XX) Sign Clamp Sign (Specific or Panel Universal) Wing Channel Nylon washer, 5/16" x 4 1/2" hex bolt with nut, lock washer, 2 flat washers per ASTM A307 galvanized per Top View Item 445, "Galvanizing." Detail A Sign Clamp (Specific or Universal).2w 12" Nylon washer, Wing 5/16" x 2 1/2" Channel hex bolt with nut, lock washer, 2 flat washers per ASTM A307 galvanized per Item 445, "Galvanizing." Sign Panel Side View Detail B w variable variable Post clamp Sign clamp 12" 6" 2 7/8" O.D. Slip base Sch. 80 steel pipe Typical Sign Mount SM RD SGN ASSM TY S80(2)XX(P-EXAL) * Additional stiffener placed at approximate center of signs when sign width is greater than 10'. 6" panel should Sign Clamp be placed at the top of See Detail D sign for proper mounting. 6" 12" * 3/8" x 4" heavy hex Drill 7/16" hole bolt with nut, lock washer (through) after and 2 flat washers per ASTM assembly and install A307 galvanized per bolt, nut, 2 flat Item 445 "Galvanizing." washers and 1 1/2" lock washer. Extender Detail C T-Bracket Splices shall only be allowed behind the sign substrate. Sign Clamps (Specific or Universal) 3/8" x 4 1/2" square head bolt, nut, flat washer and lock washer per ASTM A307 galvanized S3x5.7 per Item 445, stiffeners "Galvanizing." attached with post clamps (See SMD(2-1) Detail E for additional details) See Detail E for clamp installation 6" 24" or greater Regulatory Warning GENERAL NOTES: 1. SIGN SUPPORT # OF POSTS MAX. SIGN AREA 10 BWG 1 16 SF 10 BWG 2 32 SF Sch SF Sch SF 2. The Engineer may require that a Schedule 80 post be used in place of a 10 BWG where a sign height is abnormally high due to a fill slope. 3. Sign supports shall not be spliced except where shown. Sign support posts shall not be spliced. 4. Aluminum sign blanks shall conform to Departmental Material Specifications DMS-7110 and shall have the following minimum thicknesses: for signs less than 7.5 sq. ft., for signs 7.5 to 15 sq. ft., and for signs greater than 15 sq. ft. 5. Signs that require specific supports due to reasons in addition to windloading are indicated on the "REQUIRED SUPPORT" table on this sheet. 6. For horizontal rectangular signs fabricated from flat aluminum, T-brackets are used for signs 24 inches or less in height. U-brackets are used for signs of greater height. 7. When two triangular slipbase supports are used to support a single sign, they shall not be "rigidly" connected to each other except through the sign panel. This will allow each support to act independently when impacted by an errant vehicle. 8. Wing channel shall meet ASTM A 1011 SS Gr 50 and be galvanized per ASTM A Excess pipe, wing channel, or windbeam shall be cut off so that it does not extend beyond the sign panel (i.e., excess support shall not be visible when the sign is viewed from the front.) Repair galvanized coating at cut support ends per Item 445, "Galvanizing." 10. Sign blanks shall be the sizes and shapes shown on the plans. 11. Additional sign clamp required on the "T-bracket" post for 24 inch high signs. Place the clamp 3 inches above bottom of sign when possible. 12.Post open ends shall be fitted with Friction Caps. REQUIRED SUPPORT SIGN DESCRIPTION SUPPORT 48-inch STOP sign (R1-1) TY 10BWG(1)XX(P-BM) 60-inch YIELD sign (R1-2) TY 10BWG(1)XX(P-BM) 48x16-inch ONE-WAY sign (R6-1) TY 10BWG(1)XX(P-BM) 36x48, 48x36, and 48x48-inch signs 48x60-inch signs TY S80(1)XX(T) 48x48-inch signs (diamond or square) 48x60-inch signs TY S80(1)XX(T) 48-inch Advance School X-ing sign (S1-1) 48-inch School X-ing sign (S2-1) Large Arrow sign (W1-6 & W1-7) 3/8" x 1" square head bolt and nut Nylon washer, 5/16" x 4 1/2" Texas Department of Transportation Traffic Operations Division hex bolt with nut, lock washer, 2 flat washers per ASTM A307 galvanized per Item 445, "Galvanizing." Extruded Aluminum Sign 2 7/8" O.D. T Bracket Use Extruded Alum. Windbeam as stiffeners See SMD (2-1) for additional details See Detail E for clamp installation SIGN MOUNTING DETAILS SMALL ROADSIDE SIGNS TRIANGULAR SLIPBASE SYSTEM Extruded Aluminum Panel Sch. 80 or 10BWG steel pipe Slip base SMD(SLIP-3)-08 DATE: FILE: Detail D EXTRUDED ALUMINUM SIGN WITH T BRACKET Extruded Aluminum Sign With T Bracket C TxDOT July 2002 DN: TXDOT CK: TXDOT DW: TXDOT CK: TXDOT REVISIONS CONT SECT JOB 9-08 DIST COUNTY SHEET NO. 26D

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