525
5-227SECTIO N 525 – BRIDG E RAILINGS
525.0 1 DESCRIPTION . This work shall consist of furnishing and erecting bridge railing and performing repairs to existing bridge railing. 525.0 2 MATERIALS . Materials shall meet the requirements of the following subsections: Mortar, Type IV ................................ ................................ ................................ ......... 707.0 1(e) Grease Rustproofing Compound ................................ ................................ ................ 708.0 4 Structural Steel ................................ ................................ ................................ ........... 714.02 Anchor Bolts for Bridge Railing ................................ ................................ ................ 714.07 Galvanizing ................................ ................................ ................................ ................ 726.0 6 Metalizing ................................ ................................ ................................ .................. 726.0 7 Bearing Pads ................................ ................................ ................................ .............. 731.0 1 Metal Hand Railing ................................ ................................ ................................ ....732.01 Aluminum Bridge Railing ................................ ................................ .......................... 732.02 Galvanized Box Beam Bridge Railing ................................ ................................ .......732.03 Steel Beam Bridge Railing ................................ ................................ ......................... 732.04 Concrete shall meet the requirements of Section 501 for Performance -Based Concrete, Class PCD unless otherwise specified in the Contract. For any class of concrete that is not included in Section 501 , a shrinkage -compensating admixture shall be added during the initial concrete mixing phase or as recommended by the chemical manufacturer’s product r epresentative. The Contractor shall provide a written recommendation from the chemical manufacturer’s product representative for the appropriate shrinkage -compensating dosage. Reinforcing steel shall meet the requirements of Section 507 . 525.0 3 FABRICATIO N DRAWINGS . The fabricator of steel components furnished under this section shall submit detailed fabrication drawings in accordance with the requirements of Subsection 105.06 and The Contractor shall submit a bending schedule for concrete bridge railing reinforcement in accordance with the requirements of Subsection 105.06 . These requirements do not apply to work performed under Subsection 525.06(c) or Subsection 525.06(d) .
525 5-228 525.0 4 FABRICATION .
of Section 506 . Unless otherwise specified, all ferrous metal railing components shall be galvanized.
requirements of Section 501 . Forms shall be constructed to allow for checking and correcting the railing alignment and grade after the concrete has bee n placed and prior to initial set. The forms shall be reinforced in such a manner that finishing of the railing tops will not disturb the final adjusted alignment. 525.0 5 CONSTRUCTIO N TOLERANCES . Tolerances for railing components shall meet the requirements of the AASHTO LRFD Bridge Construction Specifications .
525.06INSTALLATION
of Section 501 , Section 506 , Section 507 , and these specifications. Alignment, grade, and clearances at joints shall be adjusted to the satisfaction of the Engineer. Posts shall be adjusted and aligned to the satisfaction of the Engineer prior to placing any mortar. Unless otherwise specified, removed railing shall become the property of the Contractor and shall be removed from the project. Sleeves for hand railing shall be secured and accurately aligned prior to placement of any concrete. Galvanized surfaces that have been scratched or have received minor abrasions shall be repaired in accordance with Subsection 726.0 6 or as directed by the Engineer. Concrete railing shall receive an aesthetic finish in accordance with Subsection 501.1 4(a)(2) . Cracks in concrete railing shall be repaired by a method approved by the Engineer. Cracks in concrete greater than 0.01 inch may be cause for rejection.
fastened to the bridge railing posts as shown on the Plans or as directed by the Engineer.
525 5-229 (c) Bridge Railing Repair , HDSB . HDSB b ridge railing repair of the type specified shall be performed at the locations indicated in the Plans and as directed by the Engineer.
installing new heavy duty steel beam panels and offset blocks on existing fascia -mounted or curb -mounted posts spaced at 6.25 feet or less.
installing new nested heavy duty steel beam pane ls and offset blocks on existing fascia - mounted or curb -mounted posts spaced greater than 6.25 feet.
of installing new heavy duty steel beam panels and offset bloc ks on new fascia -mounted or curb -mounted posts using existing anchor bolts.
performed at the locations indicated in the Plans and as directed by the Engineer .
consist of installing new bridge railing beams and offset blocks on existing posts.
consist of installing new bridge railing beams, offset blocks, and bridge railing posts, using existing anchor bolts.
consist of installing ne w bridge railing beams, offset blocks, bridge railing posts, and new anchor bolts.
determined by the Engineer. Any missing or damaged railing components or h ardware shall be replaced in -kind in accordance with the Plans.
525 5-230 525.0 7 METHO D OF MEASUREMENT . The quantity of Removal of Existing Bridge Railing and Reset Existing Bridge Railing to be measured for payment will be the number of linear feet of existing railing dismantled and disposed of, or repaired and reset, between the limits specified or as ordered by the Engineer. The quantity of Bridge Railing of the type specified to be measured for payment will be the number of linear feet of the type of bridge railing used in the complete and accepted work. Measurement will be made along the face of the rail from end to end or between the pay limits specified. No deductions or additions will be made for joints. The quantity of Bridge Railing Repair of the type specified to be measured for payment will be the number of feet of railing repaired in the complete and accepted work, measured within the limits shown on the Plans or as directed by the Engineer. No additi onal measurement will be made for nested beam panels. 525.0 8 BASIS OF PAYMENT . The accepted quantity of Removal of Existing Bridge Railing and Reset Existing Bridge Railing will be paid for at the Contract unit price bid per linear foot. Payment will be full compensation for dismantling and disposing of, or for repairing and resetting, existing railing and for furnishing all labor, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Bridge Railing of the type specified will be paid for at the Contract unit price per linear foot. Payment will be full compensation for detailing, furnishing, handling, placing, delineating, galvanizing, applyin g grease rustproof compound, and painting or powder coating the railing components , and for furnishing all labor, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Bridge Railing Repair of t he type specified will be paid for at the Contract unit price per linear foot. Payment will be full compensation for detailing, treating, furnishing, handling, and placing railing components, and for bolts and hardware necessary for installing railing comp onents. Payment will also be full compensation for all work necessary for verifying and adjusting post height or bolt spacing of existing posts, for furnishing all forms, joint filler, admixtures, trial batches, and connection plates for approach railing t erminal connectors, for satisfactory completion of any necessary repairs, surface finishing, and curing and for furnishing all labor, tools, equipment, and incidentals necessary to complete the work.
525
5-231Payment will be made under:
Pay Item Pay Unit
525.1000 Removal of Existing Bridge Railing ................................ ......................... Linear Foot
525.1100 Reset Existing Bridge Railing ................................ ................................ ...Linear Foot
525.1210 Bridge Railing Repair, HDSB, Type I ................................ ...................... Linear Foot
20 Bridge Railing Repair, HDSB, Type II ................................ ..................... Linear Foot
30 Bridge Railing Repair, HDSB, Type III ................................ ................... Linear Foot
525.1310 Bridge Railing Repair, Box Beam, Type I ................................ ................ Linear Foot
20 Bridge Railing Repair, Box Beam, Type II ................................ .............. Linear Foot
30 Bridge Railing Repair, Box Beam, Type III ................................ ............. Linear Foot
525.3000 Bridge Railing, Fascia Mounted ................................ ............................... Linear Foot
525.3120 Bridge Railing, Galvanized 2 Rail Box Beam ................................ .......... Linear Foot
30 Bridge Railing, Galvanized 3 Rail Box Beam ................................ .......... Linear Foot
40 Bridge Railing, Galvanized 4 Rail Box Beam ................................ .......... Linear Foot
525.3230 Bridge Railing, Galvanized 3 Rail Box Beam, Curbless .......................... Linear Foot
525.4030 Bridge Railing, Aluminum 3 Rail ................................ ............................. Linear Foot
525.4130 Bridge Railing, Aluminum 3 Rail, Pedestrian ................................ .......... Linear Foot
525.4400 Bridge Railing, Galvanized HDSB/Fascia Mounted/Stee l Tubing ........... Linear Foot
525.5000 Bridge Railing, Galvanized Steel Tubing/Concrete Combination ............ Linear Foot
525.5100 Bridge Railing, Galv. Steel Hand Rail/Conc. Parapet Comb. .................. Linear Foot
525.5200 Bridge Railing, Texas Rail with Windows ................................ ............... Linear Foot
10 Bridge Railing, Texas Rail without Windows ................................ .......... Linear Foot
525.5300 Bridge Railing, Concrete F -Shape ................................ ............................ Linear Foot
525.5400 Bridge Railing, Concrete Single Slope ................................ ..................... Linear Foot
525.5500 Bridge Railing, Concrete Vertical Face ................................ .................... Linear Foot
525.6100 Bridge Railing, Metal Truss Bridge ................................ .......................... Linear Foot
525.6200 Bridge Railing, Covered Bridge ................................ ............................... Linear Foot
527
5-232SECTIO N 527 – MAINTENANC E OF STRUCTURES AND APPROACHES
527.0 1 DESCRIPTION . This work shall consist of the maintenance of existing structures and approaches within the project limits. 527.0 2 ROAD MAINTENANCE . The Contractor shall maintain all highway sections within the confines of the work under the Contract to the satisfaction of the Engineer. When traffic is to be maintained over the present highway, the full width of the roadway shall be maintained. The maintenance shall be done by means of an approved road grader or other approved equipment of a type that will be efficient in keeping the roadway in a reasonably smooth and passable condition for traffic and shall be subject to the approval of the Engineer. The material for and the necessary filling of holes and similar depressions that develop in the roadway shall be included in the Contract price for this item. If, in the opinion of the Engineer, the Contractor fails to maintain a reasonably smooth roadway surface, and fails to fix the same after written notification, the Engineer will make the necessary provisions to maintain the roadway surface, and the cost shall be deducted from any money due or to become due under the Contract. 527.0 3 BRIDG E MAINTENANCE . When traffic is maintained over an existing structure, the C ontractor shall keep all parts of the structure safe for the legal or posted load of the structure including satisfactory maintenance of the substructure, superstructure, and the bridge surface. The Contractor shall strengthen, patch, shore, or renew any p art or parts of this substructure or superstructure when necessary for the safety of the traveling public. If the existing structure over which traffic is being maintained becomes unsafe for public travel, and if, following written order by the Engineer, the Contractor fails to make satisfactory repairs, the Engineer will make the necessary provisions to repair the structure, and the cost will be deducted from any monies due under the Contract. 527.0 4 METHO D OF MEASUREMENT . The quantity of Maint enance of Structures and Approaches to be measured for payment will be on a lump sum basis. 527.0 5 BASIS OF PAYMENT . The accepted quantity of Maintenance of Structures and Approaches will be paid for at the Contract lump sum price. Payment will be full co mpensation for performing the work specified and for furnishing all labor, materials, tools, equipment, and incidentals necessary to properly maintain substructures, superstructures, and roadway approaches.