Effective with the December 2018 Letting 506 2019 Standard Spec ifications Section 671 Intelligent Transportation Systems - Conduit
671.1 Description
1.This section describes providing conduit for ITS work and prov iding permanent flexible above ground markers along a path of any fiber optic cabling and new or exis ting manholes.
671.2 Materials
671.2.1 Conduit
1.Furnish orange, smooth, high- density polyethylene (HDPE), soli d-wall conduit rated for outdoor and underground use conforming to ASTM F2160. Use the size the plans show with a size-to-diameter ratio (SDR) of 11 and conforming to the following: NOMINAL INSIDE DIAMETER NOMINAL OUTSIDE DIAMETER 1.25 inches 1.660 inches 2 inches 2.375 inches 3 inches 3.50 inches
2.The construction and testing o f the conduit shall comply with applicable EIA/TIA, ANSI, and ASTM standards.
3.Furnish bends, adapters, coup lings, fittings, and other materi als used to install conduits. Meet of the duct manufacturer’s installation recommendations. Furnish anodi zed aluminum reverse threaded couplers sized as appropriate.
671.2.2 Woven Pull Tape
1.Provide woven pull tape for empt y ducts in the run. The woven pull tape shall have documentation as duct cutting resistant, tensile strength of greater than 1100 p ounds, nominal width of 1/2 inch, and maximum allowable elongation under pulling tension of 10 percen t.
671.2.3 Fiber Optic Cable Marker
1.Furnish fiber optic cable markers as the plans show.
671.2.4 Tracer Wire
1.Furnish 12 AWG stranded copper tracer wire conforming to 655 in at least one cond uit for each run. Connect the tracer wire using a wire nut at each pull box, manh ole, or other access point. Alternatively, use a single wi re through the access points.
671.3 Construction
671.3.1 Installing Conduit
1.Install conduit by plowing or trenching.
2.Do not exceed the minimum bending radius of the cable installed in the conduit. Do no t pull cable over edges or corners, over or around obstructions, or through unnec essary curves or bends.
3.Use directional bore installations if the contract specifies.
4.Repairs are not allowed. Remov e broken, chipped, cracked, or i mpaired lengths of fittings or conduit and replace with new materials. Do not install conduit above gr ound or on structures.
5.Provide information to the engineer as specified in 107.22. Expose the main to provide visual inspection by the utility owner fo r gas mains of 100 psi or gre ater, or 12 inches in diameter or greater.
671.3.2 Woven Pull Tape
1.Provide woven pull tape at each raceway point in acceptable to the engineer. If cables are blown directly through the ducts, wov en pull tape for those sections of individual ducts is not required. Spare conduits shall have woven pull tape installed in the duct.
671.3.3 Fiber Optic Cable Marker
1.Provide installation at locations the plans show and as the en gineer directs. Installation should be adequate so that marker cannot be pulled out or removed manually. The marker should self erect after vehicle impact.
2.Install markers so that all lengths of installed fiber optic c ables in new conduit have a minimum of one marker. Install a minimum of 2 m arkers along each fiber optic c able path in new conduit so that one forward and one behind are always visible. Install a marker at each point along the fiber optic cable path where a 45-degree or greater change in direction occurs.
3.Install a marker at each handhole at locations where the fiber optic cabling is installed into existing conduit networks. Install markers a maximum of 24 inches latera l displacement from the actual placement of the conduit and fiber optic cabling. Effective with the December 2018 Letting 507 2019 Standard Spec ifications (4) Install markers no later than 3 days following the installatio n of conduit to contain fiber optic cables, or of direct buried fiber optic c ables. Safeguard the conduit and cables during the installation of the markers. Remove and replace any conduit or cables as the plans show that are damaged during marker installation at no additional cost to contract.
671.4 Measurement
1.The department will measure the Conduit HDPE and Conduit HDPE Directional Bore bid items by the linear foot acceptably completed, measured along the centerline of the conduit from centerline of fitting to centerline of fitting or end of conduit, or between ends of conduit, or between ducts.
2.The department will measure Fiber Optic Cable Marker as each i ndividual marker acceptably completed.
671.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 671.0100 - 0199 Conduit HDPE (duct) (size) LF 671.0200 - 0299 Conduit HDPE Direc tional Bore (duct) (size) LF 671.0300 Fiber Optic Cable Marker EACH
2.Payment for the Conduit HDPE and Conduit HDPE Directional Bore bid items is full compensation for providing, hauling, and installing materials including conduit, fittings, couplers, and bends; for pull wires or ropes; for expansion fi ttings and caps; for excavating , bedding, backfilling, and restoration of ground to original condition including sand, concrete, or other required mate rials; for disposing of surplus materials; and for making inspections.
3.Payment for Fiber Optic Cable Ma rker is full compensation for providing and installing materials including restoration of ground to original condition including topsoil, sand, concrete, or other required materials; and for disposing of surplus materials.
4.The department will pay separately for conduit tracer wire as specified in 671.2.4 under the appropriate 655 bid item. Effective with the December 2018 Letting 508 2019 Standard Spec ifications Section 673 Communication Vaults
673.1 Description
1.This section describes providi ng communication vaults and asso ciated tracer wire marker posts.
673.2 Materials
673.2.1 General
1.Furnish fiber optic cable suppor t assemblies consisting of the brackets, racks, and rails required to suspend surplus cabling and splice enclosures for a communicati on vault. Ensure that support assemblies are made from or coat ed with a corrosion resistant m aterial.
2.Furnish self-curing, permanent bonding, flexible gray rubber c aulk. Ensure that the caulk is mildew- resistant, non-flammable, and is unaffected by sunlight, water, oils, mild acids, or alkali.
3.Furnish fade resistant, ultraviol et stable, high-impact polycarbonate tracer wire marker posts a minimum of 62 inches long with an outside diameter of 3.5 inche s with "WARNING FIBER OPTIC CABLE BELOW" molded into the mark er. Ensure that posts have sta inless steel hardware, five standard terminals, a terminal enclosure for cathodic protection, and an anchor bar. 673.2.2 Rectangular Vaults
1.Furnish one-piece gray, polymer concrete rectangular communica tion vaults measuring 30 inches by 48 inches and at least 48 inches high. Stackable vaults are not allowed.
2.Furnish a two-piece lid with a 15,000 pound minimum design loa d stamped permanently with "WISDOT ITS" or as the plans sho w. Ensure that vault lids have water resistant gaskets, 2 slots measuring 1/2 inch by 4 inch es for a pull out, and enough metal to detect with a metal detector.
673.2.3 Round Vaults
1.Furnish round communications vaults from the department's QPL.
673.3 Construction
1.Provide additional conduit openings in vaults using a manufact urer-approved knockout punch driver. Ensure that gaps between the conduit and vault are not greater than 1/2 inch. Caulk gaps both on the inside and the outside of the vaul t. Cure caulk according to ma nufacturer's specifications before backfilling.
2.Lock vault lids with two 3/8-in ch 16 UNC stainless steel penta head bolts with washers. Anchor support assemblies to vaults using s tainless steel hardware.
3.Install tracer wire marker pos ts so that they cannot be pulled out or removed manually. Install conduit into the access point and connec t the tracer wir e to the tracer wire marker post terminals.
673.4 Measurement
1.The department will measure the EACH bid items under this sect ion as each individual unit acceptably completed.
673.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 673.0100 - 0199 Communication Vault (type) EACH 673.0200 Tracer Wire Marker Posts EACH
2.Payment for the Communication V ault bid items is full compensa tion for providing vaults; and for excavating, backfilling, and restoring the grade.
3.Payment for Tracer Wire Marker Posts is full compensation for providing markers; and for excavating, backfilling, and restoring the grade.
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 515–516 of 601. View official source ↗