Art. 725.01 Object and Terminal Markers SECTION 725. OBJECT AND TERMINAL MARKERS
725.01 Description. This work shall consist of furnishing and installing object
markers and terminal markers.
725.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Metal Posts and Hardware for Highway Markers, Signs and Delineators (Note 1) .......................................................... 1006.29
b.Sign Base ............................................................................................... 1090
c.Sign Face ............................................................................................... 1091 Note 1. Posts for terminal markers shall be galvanized, Type C steel posts. Hardware for terminal markers shall be stainless steel. CONSTRUCTION REQUIREMENTS
725.03 Object Markers. Object markers shall be installed to delineate
obstructions within and adjacent to the roadway or to delineate the end of roadway. The specific object marker type required, its location, and method of mounting shall be as shown on the plans.
725.04 Terminal Markers. Terminal markers shall be installed at the
locations shown on the plans to delineate the location of guardrail terminals. Terminal markers shall be either directly applied to the terminal or post mounted in front of the terminal.
a.Direct Applied Terminal Markers. Direct applied terminal markers shall be installed directly on the end of the guardrail terminal as shown on the plans. The surface of the terminal shall be cleaned of all contaminants prior to the installation of the terminal marker. The surface shall be cleaned using a 5-8 percent phosphoric acid solution and rinsed with clean water; or cleaned per the terminal marker sheeting manufacturer’s specifications.
b.Post Mounted Terminal Markers. Post mounted terminal markers shall be fabricated as a Type 1 sign panel and post mounted in front of the guardrail terminal as shown on the plans. Posts shall be driven by hand or mechanical means to a minimum depth of 3 ft (900 mm) and the top of the post shall be 30 in. (750 mm) above the ground. The post shall be protected by a suitable driving cap and if required by the Engineer, the material around the post shall be compacted after driving. The posts shall be vertical and oriented so the face of the terminal marker shall be at 90 degrees to the centerline of the adjacent pavement. A minimum of two bolts shall be required for attachment of the marker. Sign Support – Breakaway Art. 727.03
725.05 Basis of Payment. This work will be paid for at the contract unit price
per each for OBJECT MARKER - TYPE 1, TYPE 2, TYPE 3, or TYPE 4; TERMINAL MARKER - DIRECT APPLIED; or TERMINAL MARKER – POST MOUNTED. SECTION 726. MILE POST MARKER ASSEMBLY
726.01 Description. This work shall consist of furnishing and installing a
milepost marker at the location specified in the plans.
726.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Sign Legend, Type 1 ............................................................................... 1091
b.Metal Posts and Hardware for Highway Markers, Signs, and Delineators ....................................................................... 1006.29
c.Sign Face ............................................................................................... 1091
726.03 Basis of Payment. This work will be paid for at the contract unit price
per each for MILE POST MARKER ASSEMBLY. SECTION 727. SIGN SUPPORT – BREAKAWAY
727.01 Description. This work shall consist of furnishing and installing
galvanized structural steel breakaway sign supports or galvanized hollow structural steel tubular breakaway sign supports and stub posts.
727.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Structural Steel .................................................................................. 1006.04
b.Structural Steel Supports ................................................................... 1093.01
c.High Strength Steel Bolts, Nuts and Washers ............................... 1006.08(b) Hollow structural steel tubing shall be according to ASTM A 500 (Grade B) or ASTM A 501. All other structural steel shapes and plates shall be according to AASHTO M 270 (M 270M). Shims shall be fabricated from stainless steel shim stock according to ASTM A 240 (A 240M), Type 302 or 304. CONSTRUCTION REQUIREMENTS
727.03 General. Sign locations shall be staked by the Contractor and
approved by the Engineer prior to installation of sign supports and structures. The Contractor and the Engineer together shall determine the exact lengths, sizes, and locations required before ordering the supports to be fabricated.
Referenced in this section
Sections that cite this one
Get an email when 725 changes
Illinois revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.
Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 655–656 of 1,217. View official source ↗