538-1 Description.
Remove the existing guardrail system and reinstall using new and reusable components, at the locations shown in the Plans. Construct the reset guardrail in accordance with the Standard Plans using new and reusable components, excluding components defined as non -reusable in this Section. Furnish and install end treatment assemblies, approac h transition connections to rigid barrier, trailing end transition connections to rigid barrier, and bridge anchorage assemblies as required by the Plans.
538-2 Materials.
538-2.1 Planned Non -reusable Components: The following items are considered
planned non-reusable components and must be replaced with new components:
1.Timber posts
2.Timber offset blocks
3.End treatment assemblies
4.Approach transition connections to rigid barrier , including but not limited to panels, posts, hardware, offset blocks, etc.
5.Trailing end transition connections to rigid barrier
6.Bridge anchorage assemblies , including but not limited to panels, posts, hardware, offset blocks, etc.
7.Mounting hardware, including but not limited to nuts, bolts, washers, e tc.
8.Any other items specified as non -reusable in the Plans
538-2.2 Unforeseen Non -reusable Components: During construction operations, the
Engineer may deem other existing components, excluding planned non -reusable components, as unacceptable for re -use. Such components are considered unforeseen non -reusable components and require replacement with new components. Unforeseen non -reusable components will be compensated in accordance with 4 -4. Components damaged during construction operations are not considered unforeseen non -reusable components and must be replaced with new components at no cost to the Department.
538-3 Construction Methods.
Construct the reset guardrail in accordance with Section 536. If the reset guardrail is to be placed in t he same location as the previous installation, do not use the previous installation’s in -ground post holes. Place the reset posts at the approximate midspan location of the previous installation. Backfill and thoroughly tamp the unused, in - ground holes at the previous post locations. To accommodate the new post locations, field punch new post bolt slots in the reusable guardrail panels where needed. Meet the dimension and treatment requirements of the Standard Plans and Section 536.
538-4 Method of Measure ment.
The quantities paid for will be the plan length quantity, in linear feet, constructed, in place and accepted. FY 2023-24 Return to Table of Contents The plan length of a run of guardrail is measured end -to-end following the centerline of the panels, from the begin/end guardrail stations as defined in the Standard Plans and specified in the Plans, including the end treatments and transition connections to rigid barrier lengths.
538-5 Basis of Payment.
Price and payment for resetting guardrail will be full compensation for all work specif ied in this Section, including the furnishing replacements for planned non -reusable components (excluding end treatment assemblies, approach transition connections to rigid barriers, and bridge anchorage assemblies) and installation of all required components as defined in the Standard Plans . The price and payment will include any reduced post spacing, trailing end transition connections, shop -bent panels, and CRT post segments as defined in the Standard Plans and shown in the Plans. Price and payment for end treatment assemblies, approach transition connections to rigid barriers, and bridge anchorage assemblies will be as specified in Section 536. Payment will be made under: Item No. 538 - 1- Guardrail - Reset - per foot. FY 2023-24 Return to Table of Contents SECTION 544 CRASH CUSHIONS
544-1 Description.
Install redirective crash cushions as shown in the Plans. Redirective crash cushions are safety devices with capabilities to redirect the impacting vehicle along the full length of the device.
544-2 Approved Product List ( APL).
Use crash cushions listed on the APL. Manufacturers seeking evaluation of cras h cushions for inclusion on the APL must submit the following:
1.Product drawings, which at a minimum include:
a.Anchorage details for the crash cushion
b.Tables showing the relevant system information and lengths for all options
c.Length of need location
d.Transition details
e.List of all components
2.Installation manuals
3.Crash testing reports demonstrating that the system meets the requirements of MASH
4.All relevant FHWA Eligibility Letters
544-3 Installation.
Handle and install manufactured materials or articles in accordance with the manufacturer’s instructions and the Standard Plans . Transition crash cushions in accordance with the Plans, Standard Plans, Index 544-001 and the APL drawings. Delineate crash cu shion ends with Type IV or better retroreflective sheeting meeting the requirements of Section 994. Install retroreflective sheeting with a minimum surface area of 360 square inches and a minimum height of 15 inches. As an alternative, a Type 1 object marker meeting the requirements of Section 705 may be used to delineate the crash cushion end . Center the object marker 3 feet in front of the crash cushion end. Perform repairs necessary due to defective material, work, or operations without additional cost to the Department. Restore crash cushions damaged by the traveling public after the installation is completed, accepted and serving its intended purpose on an open section of bridge or roadway within 24 hours.
544-4 Method of Measurement.
The quantity pa id for will be the number of each type as designated, constructed, in place, and accepted. Crash cushion types are designated by Test Level (TL) and include either narrow or wide systems.
544-5 Basis of Payment .
Price and payment will be full compensation for all work specified in this Section , including delineation and system transitions to guardrail or rigid barriers . FY 2023-24 Return to Table of Contents
Source: Florida Standard Specifications for Road and Bridge Construction, 2024 Edition. Pages 761–762 of 1,299.