807.1Description.
This work consists of providing, placing, operating, relocating, and maintaining temporary safety barrier.
807.2Materials.
807.2.1 Temporary Safety Barrier.
A.Crashworthy Temporary Safety Barrier crash tested under the most recent provisions of MASH, in
accordance with the contract.
B.Eligibility letters in accordance with Section 801.2. C.Segments of barrier with a stamp molded into the top indicating the barrier is in compliance with
MASH. For barrier segments with no molded stamp, submit certification to the engineer of the barrier crash test in accordance with MASH and certification that the barrier meets a minimum of Test Level 3 criteria.
D.Unpinned barrier systems with tested dynamic deflections of no more than 4 feet.
E.Pinned barrier systems with tested dynamic deflections of no more than:
1.10-inches when pinned in a bituminous asphalt surface; and
2.6-inches when pinned in concrete.
F.Pavement Hole Filler Section 1024.8
G.Replace temporary safety barrier not meeting at least the “marginal” criteria of the Quality
Guidelines for Temporary Traffic Control Devices within 24 hours of notification. 807.2.2 Glare Screen.
A.Glare screen as required by the contract.
B.Galvanized hardware in accordance with manufacturer’s recommendations.
807.3Construction.
807.3.1 Temporary Safety Barrier.
A.Arrange pre-inspection of barrier segments with the engineer before transporting temporary
safety barrier to the job site.
B.Paint the traffic side of PCC barrier with a white latex paint before placement.
C.Supplement the temporary safety barrier with standard delineation, pavement markings, or
channelizing devices.
D.Place unpinned barrier as follows:
1.Place continuous unpinned barrier system at the locations shown in the contract or as directed
by the engineer. Differing unpinned barrier systems are to be overlapped, in the direction of travel, by the length of two barrier sections.
2.Place unpinned barrier starting at the impact attenuator and working in the direction of traffic
flow.
3.Connect unpinned barrier segments using approved joint connections.
4.Use 1 type of joint system for a single run of unpinned barrier system.
E.Install pinned barrier as follows:
1.Ensure that holes for pin installations are integral to the barrier segment.
2.Do not use metal straps pinned to the toe of the barrier and the pavement unless these are a
part of the crash tested system.
3.Install continuous pinned barrier system at the locations depicted in the contract or as directed
by the engineer. Differing pinned barrier systems are to be overlapped, in the direction of travel, by the length of two barrier sections.
4.Install pinned barrier starting at the impact attenuator and working in the direction of traffic
flow.
5.Connect barrier segments using approved joint connections.
6.Use 1 type of joint system for a single run of pinned barrier system.
7.Install on bituminous and concrete surfaces by driving pins at the locations specified by the
manufacturer and using manufacturer-supplied pins in accordance with manufacturer’s requirements.
F.Remove unpinned barrier by starting at the end of the barrier run and proceeding toward the
impact attenuator.
G.Remove pinned barrier as follows:
1.Begin removal starting at the end of the barrier run and proceeding toward the impact
attenuator.
2.Cut flush pins that are bonded to the subgrade. Remove all other pins and fill the pavement
holes created by pinning with approved pavement hole filler material.
3.Pinned barrier may only be provided, where unpinned barrier would otherwise be acceptable, if
the project is overlaying the barrier area after it is removed.
H.Relocate temporary safety barrier as follows:
1.Relocate existing runs of temporary safety barrier to the locations shown in the contract or as
directed by the engineer.
2.Remove existing runs of temporary safety barrier in accordance with Sections 807.3.1.E. or
807.3.1.F.
3.Install barrier at the new location in accordance with Sections 807.3.1.C. or 807.3.1.D., as
applicable.
I.Maintain temporary safety barrier as follows:
1.Replace barrier segments not meeting the “marginal” criteria of the Quality Guidelines for
Temporary Traffic Control Devices, in accordance with Section 801.3.
2.Do not repair cracks or spalls in temporary safety barrier.
3.Examples of unacceptable barrier condition are when:
a.The barrier has multiple cracks throughout, structural cracks, or cracks through the entire
cross-section.
b.The barrier has spalls with a depth greater than 1 1/2-inches.
c.There is exposed rebar or rebar is protruding from the barrier, not including anchor slots.
d.Bolts are protruding from the barrier face.
4.Replace damaged barrier segments within 24-hours of damage notification.
5.Straighten sections of un-damaged barrier wall that deflected due to a crash within 24-hours of
deflection notification.
6.Clean temporary safety barrier as directed by the engineer. During winter months, clean the
barrier in a manner that does not create ice on the roadway.
a.After cleaning, re-paint the traffic side of PCC safety barrier with a white latex paint.
807.3.2 Glare Screen.
A.Provide and install a glare screen system on top of temporary safety barrier if required by the
contract or directed by the engineer.
B.Submit shop drawings for the proposed glare screen system showing the recommended
installation spacing, angle, height, and all materials for approval by the engineer.
C.Install the glare screen system in accordance with the manufacturer’s recommendations and the
details shown on the approved shop drawings.
D.Repair damaged sections of glare screen within 24-hours of notification.
E.Remove glare screen from the barrier wall when no longer required in a manner that does not
damage the barrier.
807.4Method of Measurement.
A.The Department will measure:
1.Temporary safety barrier as the number of linear feet along the centerline of barrier in place,
provided and installed or relocated.
2.Installation and removal of pins as the number of linear feet along the centerline of barrier of
pins installed or removed.
3.Glare screen as the number of linear feet along the line of the screen from center to center of
the end section, provided, installed, and accepted.
807.5Basis of Payment.
A.The Department will pay the accepted quantities of temporary safety barrier at the contract unit
price per linear feet of barrier provided, placed, and accepted. Price and payment constitute full compensation for providing, placing, painting, and maintaining barriers.
B.The Department will pay the accepted quantities of relocated temporary safety barrier at the
contract unit price per linear feet. Price and payment constitute full compensation for:
1.Removing barrier from the existing location;
2.temporary storage at the job site;
3.providing paint and painting; and
4.placing at a new location.
C.The Department will pay the quantity of installing pins at the contract unit price per linear foot of
pinning required to restrain a temporary safety barrier. Price and payment constitute full compensation for providing and placing all materials and setting pin.
D.The Department will pay the quantity of removing pins at the contract unit price per linear foot of
pins required to un-restrain a temporary safety barrier. Price and payment constitute full compensation for removing pins and sealing holes from pins.
E.The Department does not consider barriers the contractor moves to access work as relocated
barrier and will make no additional payment for these moves.
F.The Department will pay the accepted quantities of glare screen at the contract unit price per
linear foot. Price and payment constitute full compensation for:
1.Providing, installing, and maintaining glare screen;
2.replacement of glare screen damaged by traffic; and
3.removal.
G.The Department will only pay for the initial installation of glare screen on the barrier and will not
pay for re-installations on subsequent barrier relocations.
F.The Department will pay for standard delineation of temporary safety barrier with other items on
the contract. ITEM DESCRIPTION UNIT 807008 GLARE SCREEN LF 807020 PROVIDE AND PLACE TEMPORARY SAFETY BARRIER LF 807021 RELOCATE TEMPORARY SAFETY BARRIER LF 807022 REMOVE TEMPORARY SAFETY BARRIER LF 807023 INSTALL TEMPORARYSAFETY BARRIER PINS, IN BITUMINOUS PAVEMENT LF 807024 INSTALL TEMPORARY SAFETY BARRIER PINS, IN CONCRETE LF 807025 REMOVE TEMPORARY SAFETY BARRIER PINS, FROM BITUMINOUS PAVEMENT LF 807026 REMOVE TEMPORARY SAFETY BARRIER PINS, FROM CONCRETE LF
Referenced in this section
Delaware 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: Delaware Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 447–0 of 786.
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