104.20 Temporary Orange Construction Fence
CATEGORY 100 PRELIMINARY SECTION 104.20 — TEMPORARY ORANGE CONSTRUCTION FENCE
104.20.01 Description
Furnish, install, and maintain new or like new temporary orange mesh construction fence. This fence is not to be used as a safety barrier.
104.20.02 Materials
Precast Concrete Blocks 903.05 Tie Wire, Tension Wires, Tension Wire Clips and Hardware 914.02 Orange Mesh Fencing As approved Fence posts shall be 4 ft high, 1.90 in. diameter round posts; or 5-1/2 ft high, 2 in. steel U channel posts, as specified herein. Submit samples of the fence fabric, fence posts, movable precast concrete blocks, tie wire, tension wires, and other miscellaneous hardware for approval.
104.20.03 Construction
Temporary orange construction fence shall be at least 4 ft high and with a maximum post spacing of 8 ft. When installed on a paved surface, support the fence by inserting the round post into a precast concrete block having a round hole through the center of the block. When installed in unpaved areas, use steel U channel fence posts driven 1-1/2 ft into the ground. Installation of the fence in any other manner will require approval. Secure the fabric to the posts by wrapping a tie wire around the horizontal fence strands and the posts. Install a top tension wire to prevent sagging. When installed on paved surfaces, the Engineer will determine if a bottom tension wire is required. Remove the fence when the Engineer determines that the fence is no longer required. The removed fence is the property of the Contractor. Damaged Construction Fence. Repair or replace damaged construction fence within four hours after notification. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
104.20 Temporary Orange Construction Fence
Contract unit price per linear foot. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
104.20.04 Measurement and Payment
The payment will be full compensation for all material, labor, equipment, tools, and incidentals necessary to complete the work. Temporary Orange Construction Fence will be measured and paid for at the Contract unit price per linear foot for the actual number of linear feet measured to the centers of end posts. Remove and Reset Temporary Orange Construction Fence will be measured and paid for at the
104.22 Automated Flagger Assistance Device (Afad)
CATEGORY 100 PRELIMINARY SECTION 104.22 — AUTOMATED FLAGGER ASSISTANCE DEVICE (AFAD)
104.22.01 Description
An automated flagger assistance device (AFAD) is designed for remote operation by a certified flagger. AFADs shall only be used in situations where there is only one lane of approaching traffic in the direction to be controlled. The AFAD shall be either Type I ‘STOP/SLOW’ Sign system or Type II ‘Red/Yellow’ Lens system. Furnish, install, and maintain a portable, self-contained, AFAD for temporary traffic control as specified in the Contract Documents or as directed. The AFAD shall be crashworthy as specified in Section 104. Furnish certified flagger(s) per 104.15.01 to operate the AFAD(s). Install AFAD related signs and channelizing devices as specified in the Book of Standards for Highways and Incidental Structures.
104.22.02 Materials
AFAD Cones for Maintenance of Traffic Reflectorization Sign Material QPL
104.14 02
950.03 950.08 The AFAD shall be capable of being operated from the controller cabinet mounted on the unit. The unit shall have the ability for manual override in case of remote failure.
104.22.02 01 General System Requirements.
a.Gate Arm. The AFAD shall include a gate arm that is at least 6 ft long and the end of the arm shall reach at least to the center of the lane being controlled. The gate arm shall not extend in the opposite lane. The arm shall have vertical alternating red and white stripes on both sides at 16 in. intervals measured horizontally. The arm shall be made of lightweight rigid material. A retroreflective red or retroreflective fluorescent orange/red flag (minimum of 18 in. square) shall be attached on the end of the roadside end.
b.Remote Control. The AFAD shall be equipped with a weatherproof handheld remote control that is capable of displaying the status of the AFAD display. The remote control 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 197–198 of 1,113.