FOUNDATION
712.01 Description. This item shall consist of furnishing and
erecting steel span wire support poles with foundat ions according to these specifications and to the dimensions and deta ils and at the locations shown on the plans or as directed.
712.02 Materials. The following material requirements shall
apply to poles and foundations.
a.Pole shafts shall comply with ASTM A 1011, SS, Grad e 50 (345), AASHTO M 270, Grade 50 (345), ASTM A 595 Gr ade A, or ASTM A 572, Grade 50 or Grade 65. Galvanizing shal l comply with AASHTO M 111, Thickness Grade 100.
b.Anchor bolts shall comply with AASHTO M 314, Grade 55 (379) including supplemental requirement S1. All e xposed portions of bolts shall be galvanized according to AASHTO M 232 or ASTM B 695, Class 40 or 50.
c.Anchor base plates shall comply with AASHTO M 270, Grade 36 (250). Galvanizing shall comply with AASHT O M 111, Thickness Grade 100.
d.Cast anchor base plates shall comply with AASHTO M 103 Grade 65-35. Galvanizing shall comply with AASHTO M 111, Thickness Grade 100, or ASTM B 695Class 40 or 50.
e.Hex nuts shall comply with AASHTO M 292 Grade 2H or AASHTO M 291 Grade DH or DH3 (Grade 10S or 10S3). The thread series shall correspond with that of the bol t furnished. Washers shall comply with AASHTO M 293. Galvanizin g shall comply with AASHTO M 232 or ASTM B 695Class 40 or 5 0. Nuts shall be galvanized by the same process as that of the bolts.
f.Concrete shall comply with Section 802 for Class S concrete. The Department will perform all acceptance sampling and testing at the frequencies shown for Contractor acceptance tes ting in Subsection 802.06. Reinforcing steel shall comply with Section 804 for Grade 40 steel.
g.Ground rods shall be 5/8" (16 mm) diameter Copperwe ld with ground wire and connections.
h.When painting is specified on the plans, the pole a nd base plate shall be painted according to the provisions of Section 638.
712.03 Fabrication. The pole shall be constructed to the
dimensions shown on the plans. The pole shaft shal l have a continuous taper with only 1 vertical seam electric ally welded and rolled smooth. A handhole of sufficient size to al low for internal wiring shall be provided near the pole base. A rei nforcing frame for the handhole tapped for a grounding bolt shall be w elded into the shaft a short distance from the base. A J-hook wir e support shall be welded inside the shaft near the top of the pole. A cast steel or plate anchor base of the size and s hape shown on the plans shall be electrically welded to the botto m of the pole. The anchor base and welding thereto shall develop the f ull strength of the adjacent shaft. Four anchor bolts with hex leveling nuts shall be p rovided with each pole. The anchor bolts shall be of the length shown on the plans and have an L-bend on the bottom and shall be threaded at the top. Before installation, the Contractor shall furnish t o the Engineer design details regarding this item. These details shall specify materials and shall include a certification prepare d and/or approved by a Professional Engineer who is registered in any of the United States: • That the design complies with the plans and specifications and meets or exceeds the standards found in AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals 4th Edition (2001) with 2003 and 2006 interims . • That the materials specified in the design meet or exceed the requirements of Subsection 712.02. The Contractor shall also furnish a certification f rom the manufacturer or supplier that the span wire support pole was fabricated in compliance with the certified design and that the materials furnished comply with the specifications.
712.04 Construction Requirements. The Contractor shall
contact the local utility companies to determine th e location of underground utilities in the area where the foundat ions are to be located and shall be responsible for repairing, to the satisfaction of the utility company, any damaged utilities. Excavation, backfill, compaction, and disposal of s urplus materials shall be performed to the satisfaction of the Engineer. Compaction shall be accomplished to the extent nece ssary to prevent future settlement of the backfill. Disturbed surfa ces shall be returned to their original condition. Foundations for span wire support poles shall be co nstructed in firm earth to the minimum size and depth shown on t he plans. The location of the foundations shall be as shown on th e plans or as directed by the Engineer. Foundations shall be pla ced monolithically and have a 1" (25 mm) chamfer at the top. Conduit, anchor bolts, and ground rods shall be pla ced in proper position and shall be held in place by means of a t emplate until the concrete sets. Concrete shall be constructed accor ding to Section 802. The exposed portion of the foundation shall be given a Class 2 finish. The area between the top of the fo undation and the pole base shall be neatly grouted after the pole ha s been raked and secured in place. The pole shall not be erected up on the foundation for a minimum of 72 hours after placement of the co ncrete. Span wire support poles shall be securely bolted to the foundation in a raked position employing galvanized leveling n uts. Span wire support poles shall be effectively ground ed by means of a ground rod. The grounding wire shall be attac hed to the pole by means of a solderless steel bolt. Subsequent to erection, any damaged galvanized coat ing or paint shall be repaired according to Subsection 807.88 or Section 638, as appropriate. All holes in span wire support pole required for ey e bolts, signal cable, controller mounting, etc., shall be machine drilled.
712.05 Method of Measurement. Span Wire Support Poles
with Foundations will be measured by the unit.
712.06 Basis of Payment. Work completed and accepted and
measured as provided above will be paid for at the contract unit price bid per each for Span Wire Support Pole With Foundation, which price shall be full compensation for furnishi ng and installing the pole; for excavation, backfill, compaction, and removal of surplus material; for furnishing and placing reinfo rcing steel and concrete; and for all materials, labor, equipment, tools, and incidentals necessary to complete the work. Payment will be made under: Pay Item Pay Unit Span Wire Support Pole With Foundation Each
Source: , Edition.