TEMPORARY SAFETY BARRIER SECTION 807
438 SECTION 807 — TEMPORARY SAFETY BARRIER
807.1Description.
This work consists of providing, placing, operating, relocating, and maintaining temporary safety barrier.
807.2Materials.
807.2.1 Temporary PCC Safety Barrier.
A.Crashworthy Temporary PCC 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 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
807.2.2 Reflector Panels.
A.Reflector panels in accordance with the DE MUTCD .
B.Sign material made from 0.080 -gauge aluminum.
C.Fluorescent orange prismatic retroreflective sheeting on both sides of aluminum.
807.2.3 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 PCC Safety Barrier.
A.Arrange pre -inspection of barrier segments with the engineer before transporting temporary PCC
safety barrier to the job site.
B.Paint the traffic side of the barrier with a white latex paint before placement.
1.Temporary PCC safety barrier manufactured with white cement may be used to eliminate the
need for painting the barrier , at the discretion of the engineer .
C.Place unpinned barrier as follows:
TEMPORARY SAFETY BARRIER SECTION 807
439 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 .
D.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.
E.Remove unpinned barrier by starting at the end of the barrier run and proceeding toward the
impact attenuator.
F.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 f ill 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.
G.Relocate temporary PCC safety barrier as follows:
1.Relocate existing runs of temporary PCC safety barrier to the locations shown in the contract or
as directed by the engineer.
2.Remove existing runs of temporary PCC 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.
H.Maintain temporary PCC 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. TEMPORARY SAFETY BARRIER SECTION 807
440 2. Do not repair cracks or spalls in temporary PCC 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.Repaint the traffic side of temporary PCC safety barrier a minimum of once a year or
http://www.atssa.com/ as directed by the engineer .
7.Clean temporary PCC safety barrier once every 3 -months while in place on the roadway unless
otherwise directed by DelDOT Traffic. During winter months, clean the barrier in a manner that does not create ice on the roadway. 807.3.2 Reflector Panels.
A.For all types of temporary PCC safety barrier:
1.Install reflector panels on the top of the concrete barrier using bolts, epoxy, or approved
adhesive after placing barriers.
2.Install reflector panels at the intervals required by the DE MUTCD .
3.Replace damaged reflector panels, or those reflector panels not meeting at least the “marginal”
criteria of the Quality Guidelines for Temporary Traffic Control Devices , upon completion of barrier relocation within 24 -hours of notification.
4.Remove reflector panels before removing temporary PCC safety barrier in a manner that does
not damage the barrier.
5.Replace damaged reflector panels or those reflector panels not meeting at least the “marginal”
criteria of the Quality Guidelines for Temporary Traffic Control Devices within 24 hours of notification. 807.3.3 Glare Screen.
A.Provide and install a glare screen system on top of temporary PCC 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. TEMPORARY SAFETY BARRIER SECTION 807
441 807.4 Method of Measurement.
A.The Department will measure:
1.Temporary PCC 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 fe et 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 PCC safety barrier at the contract
unit price per linear feet of barrier provided, placed, and accepted. Price and payment constitute full compensation for:
1.Providing, placing, painting, and maintaining barriers; and
2.providing, installing, maintaining, and replacing reflector panels.
B.The Department will pay the accepted quantities of relocated temporary PCC safety barrier and
reflector panels 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;
4.placing at a new location ; and
5.maintaining and replacing reflector panels.
C.The Department will pay the quantity of installing pins at the contract unit price per linear f oot of
pinning required to restrain a temporary PCC 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 PCC 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.
TEMPORARY SAFETY BARRIER SECTION 807
442 ITEM DESCRIPTION UNIT 807008 GLARE SCREEN LF 807020 PROVIDE AND PLACE TEMPORARY PCC SAFETY BARRIER LF 807021 RELOCATE TEMPORARY PCC SAFETY BARRIER LF 807022 REMOVE TEMPORARY PCC SAFETY BARRIER LF 807023 INSTALL TEMPORARY PCC SAFETY BARRIER PINS, IN BITUMINOUS PAVEMENT LF 807024 INSTALL TEMPORARY PCC SAFETY BARRIER PINS, IN CONCRETE LF 807025 REMOVE TEMPORARY PCC SAFETY BARRIER PINS, FROM BITUMINOUS PAVEMENT LF 807026 REMOVE TEMPORARY PCC SAFETY BARRIER PINS, FROM CONCRETE LF
Source: Delaware Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 448–452 of 779.