814 - ELECTRIC LIGHTING SYS TEMS AND TRAFFIC SIGNALS
800-46 (2) Screw-In Foundation Anchors. Pre-drilling holes fo r screw-in foundation anchors is prohibited. As the
foundation anchors are screwed into the ground, make sure th ey are plumb. The pole base of the screw-in foundation anchor shall be level when the installation is complete. Use the connectors to make minor leveling adjustments on poles with breakaway connectors. Use galvanized or cadmium plated shims or washers (m aximum thickness ¼ inch) to make minor leveling adjustments on other types of poles. Only 1 shim or washer is allowed on any 1 anchor bolt, with a maximum of 2 shims or washers on any pole.
3.Removal of Existing Foundations. Remove the desi gnated existing foundations to the depth shown in the Contract Documents. Backfill the resulting holes according to DIVISION 200 . Dispose of the removed foundations and anchor bolts.
g.Conduit.
1.Run all conductors between standard locations, either in duct or conduit. Use conduit of the size and type shown in the Contract Documents. If desired, use larger size conduit at no additional cost to KDOT. Use the large size conduit for the entire length of the run from outlet to outlet. Do not use reducing couplings. When PVC or HDPE is specified, install acco rding to the manufacturer’s instructions. When steel conduit is used, ream the ends of all conduits to remove burrs and rough edges. Make field cuts square and true so the ends will match for the full diamet er. Do not use slip joints or running threads for coupling conduit. Use an approved threaded union conduit, if a standa rd coupling can not be used. Before couplings are made up, paint threads on all conduits with a rust preventative paint. Fit and ti ghten all couplings until the end of the conduits are brought together. Paint any damaged coating on conduit with rust preventative paint. Thread and cap all steel conduit ends wi th standard pipe caps, until wiring is started. When caps are removed, provide threaded ends with approved conduit bushings. Except factory bends, use conduit bends with a radius of gr eater than or equal to 6 times the inside diameter of the conduit. Where factory bends are not used, make conduit bends without crimping or flattening, using the longest radius practicable. Mark the location ends of all conduit for future electric al circuits in structures with a "Y" a minimum of 3 inches high cut in the face of curb, gutter or wall directly above the conduit.
2.Conduit Entrenched. On electric lighting projects where possible, and on surfacing projects as shown in Contract Documents, install the electrical conduit on straight lines and cover with compacted earth. Place conduit as shown in the Contract Documents. (3) Conduit Jacked. Use TABLE 814-1 to determine the conduit depth. Place conduit under existing pavement by approved jacking or dr illing methods. Do not dist urb pavement without written permission of the Engineer. Keep jacking or drilling pits 2 feet clear of the edge of any type of pavement. TABLE 814-1: JACKED CONDUIT DEPTH Location Conditio n Minimum Depth Pavement 36 inches below top of pavement. Trenches on shoulder and in park areas 36 inches below natural ground level. Finished surface in street areas 36 inches below the street surface.* Railroad tracks 42 inches below top of tie. *Conduit may be laid on top of and secured to th e existing pavement in curbed dividing strips.
4.Vertically extend conduit set in standard bases a pproximately 3 inches above the foundation, or slope towards the base opening where transformer bases are used. Locate conduit entering through the bottom of a pull box near the ends to leave the major portion of the box clear . Terminate conduit entering concrete pull boxes 2 inches inside the box wall and 2 inches or greater above the bottom and slope to facilitate pulling of cable. At all outlets, enter the conduit from the direction of the run. For conduit carried through existing culverts or bridge st ructures, pick up the trenched cable for 3 feet in the ground and run up the face of the culvert headwall to the nearest upper corner or top, through the culvert, down the opposite headwall and into the ground for 3 feet. Fasten conduit to concrete su rfaces by means of approved clamps and fasteners. Clean existing underground conduit to be incorporated into a new system with a mandrel, and blow out with compressed air. Conduit runs shown in the Contract Documents may be changed with approval of the Engineer to avoid underground obstructions. 814 - ELECTRIC LIGHTING SYS TEMS AND TRAFFIC SIGNALS 800-47
h.Electric Service Boxes. Install electric service boxes as shown in the Contract Documents.
i.Pull Boxes. Install pull boxes as shown in the Contract Docu ments. To facilitate work, additional pull boxes may be used at the Contractor’s expense.
j.Expansion Fittings. Install expansion fittings as shown in the Contract Documents, where conduit crosses an expansion joint in the structure. Provide each expansi on fitting with a bonding jumper of No. 6 A.W.G. copper wire or equal.
k.Wiring. Neatly arrange and lace up wiring w ithin junction boxes, transformer bases and on standards, etc. Do not splice cable in conduit or outside of pull boxes, splice boxes or standards, unless shown in the Contract Documents. When not fastened to existing structure or ca rried through conduit, lay conductor cable to the depth shown in the Contract Documents. Use powdered soapstone, talc or other approved l ubricant when inserting conductors in conduit. Pencil, trim to conical shape and roughen conducto r insulation before applying splice insulation. When conductors and cables are pulled into the conduit, tape all ends to exclude moisture until the splices are made or terminal appliances are attached.
l.Bonding and Grounding. When a closed system enclosed in conduit is used, bond metallic cable sheaths, conduit and metal standards to form a continuous system, and effectively ground. When an open system such as an overhead wiring or direct burial underground is used, effe ctively ground only standards and service points, except where conduit runs used under pa vement cross a water system. Install ground electrodes as shown in the Contract Documents.
m.Traffic Signal Interconnect. Install traffic signal interconnects as shown in the Contract Documents.
n.Emergency Vehicle System. Install emergency vehicle systems as shown in the Contract Documents.
o.Operating Instructions. Provide all operating instructions to the Engineer.
p.Loop Detector Replacement. Install loop detectors as shown in the Contract Documents and as specified by the owner. 814.4 MEASUREMENT AND PAYMENT If shown as a bid item in the contract, the Engineer will measure electrical conduit by the linear foot from the outside edge to outside edge of service boxes, junction boxes or traffic light footings. Excavation, removal, backfilling and Grade 3.0 concrete are subsidiary. The Engineer will measure electric lighting systems, tr affic signal installations, emergency vehicle systems and traffic signal interconnects by the lump sum. The Engineer will measure each electric service box. The Engineer will measure the loop detector replacemen ts by the linear foot of saw cut required for the installation. Payment for "Electric Lighting System", "Electric Conduit", "Electric Service Box", "Traffic Signal", "Traffic Signal Interconnect", "Emergen cy Vehicle System" and "Loop Detector Replacement" at the contract unit prices and "Loop Detector Replacement (Set Price)" at the set price is full compensation for specified work. 815 - CATCH BASINS, INLETS, OU TLETS, MANHOLES, JUNCTION BOXES & OTHER EXISTING STRUCTURES
800-48 Section 815
CATCH BASINS, INLETS, OUTLETS, MANH OLES, JUNCTION BOXES AND OTHER EXISTING STRUCTURES 815.1 DESCRIPTION Install catch basins, inlet, outlets, manholes and junction boxes as shown in the Contract Documents. B I D I T E M S U N I T S C a t c h B a s i n * E a c h I n l e t * E a c h O u t l e t * E a c h M a n h o l e * E a c h Junction Box Each *Type 815.2 MATERIALS Provide materials that comply w ith the applicable requirements. Concrete and Mortar .............................................................................................. SECTIONS 401 & 402 Aggregates for Concre te Not On Grade ................................................................ SECTION 1102 Reinforcing Steel ................................................................................................... DIVISION 1600 Gray Iron Castings ................................................................................................ DIVISION 1600 Steel Cas tings ........................................................................................................ DIVISION 1600 Structural Steel ...................................................................................................... DIVISION 1600 Brick ...................................................................................................................... DIVISION 1300 Manhole St eps ....................................................................................................... DIVISION 1700 815.3 CONSTRUCTION REQUIREMENTS
a.Excavation. Comply with SECTION 204 .
b.Concrete. Comply with DIVISION 700 for concrete form work, placing, curing and protection. Use Grade 3.0 concrete, unless shown otherwise in the Contract Documents.
c.Masonry. If shown in the Contract Documents, brick masonry or concrete masonry units may be used in place of concrete for the walls of catch basins, manholes or curb inlets. Masonry manholes may be constructed circular with an inside diameter equa l to the greater of the inside dimensi ons indicated in the Contract Documents for the concrete manhole. When masonry is used in place of concrete for square or rectangular structures, use the inside dimensions of the structure shown in the Contract Documents. Use mortar for masonry as specified in DIVISION 400 . Lay the brick or concrete masonry units with full mortared joints and with sufficient header co urses to tie the masonry together properly.
d.Reinforcement. Comply with DIVISION 700 .
e.Placing Castings. Set castings in full mortar beds or as shown in the Contract Documents. Mix mortar for setting castings as specified in DIVISION 400 . Set castings to correct elevation so no adjustment is required.
f.Backfilling. Comply with SECTION 204 .
g.Cleaning. Clean all catch basins, manholes, inlets, outle ts, etc. from any accumulation of silt and debris. 815 - CATCH BASINS, INLETS, OU TLETS, MANHOLES, JUNCTION BOXES & OTHER EXISTING STRUCTURES
800-49 h. Painting. Paint structural steel cover pl ates with 1 shop coat of an a pproved primer, 1 field coat of
aluminum paint (tinted) and 1 field coat of aluminum paint. Perform painting as specified in SECTION 714 . Painting of castings is not required unl ess shown in the Contract Documents.
i.Pre-Cast Units. Use pre-cast units when shown in the Contract Documents. If the Contract Documents do not contain fabrication details for the pre-cast unit, submit 6 copies of shop drawings ( SECTION 105 ) to the Engineer for approval. 815.4 MEASUREMENT AND PAYMENT The Engineer will measure each catch basi n, inlet, outlet manhole and junction box. Masonry and pre-cast units will not be measured or paid for as a separate item but will be paid for as the completed unit as provided above. Payment for "Catch Basins", "Inlets", "Outlets", "Manholes" and "Junction Boxes" at the contract unit prices is full compensation for the specified work; however the unit bi d price will be adjusted according TABLE
815-1 for increases and decreases in the height indicated in the Contract Documents.
TABLE 815-1: CHANGE IN HE IGHT PAYMENT ADJUSTMENTS Change in Height (feet) Increment of Increases or Decreases in Unit Bid Price Total Increase or Decrease 0 to 0.49 None None 0.50 to 1.00 7.5% 7.5% 1.01 to 2.00 10.0% 17.5% 2.01 to 3.00 12.5% 30.0% For change in height of more than 3.00 feet, the in crement of increase or decreas e is 15% for each foot or fraction over 3.00 feet. OSHA requires different construction procedures and safety requirements when excavated depths reach 5.0 feet or greater. In consideration of this , if a plan height of less than 5.0 feet is adjusted to a height of 5.0 feet or greater, or a plan height of 5.0 feet or greater is adjusted to a height of less than 5.0 feet, an additional 25% of the unit price will be added or deducted from the bid price. This is in addition to normal correction applied from the TABLE 815-1 .
Source: Kansas Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 537–540 of 978.