DelDOT Section 702: Triangular Channelizing Islands

702.1Description.

This work consists of constructing triangular channelizing islands.

702.2Materials.

A.Bituminous Patching Section 401

B.Truncated Dome Detectable Warning Surfaces Section 705

C.Delineator Section 1073.1

D.Bituminous Pavement Section 1014

E.PCC, Class B Section 1022

F.Liquid Membrane-Forming Compounds for Curing Section 1045.7

G.Expansion Joint Material Section 1042.2.A

702.3Construction.

A.Provide a concrete flatwork technician with an ACI or NRMCA certification, or a certification from

another Department approved certification program, to supervise concrete finishing. Provide the certification to the engineer before placing concrete.

B.Place concrete in accordance with Section 501.3 including the weather limitations in Section

501.3.8.

C.Triangular Channelizing Island.

1.Saw cut existing bituminous concrete pavement or PCC pavement in accordance with Section

762.3 and:

a.Saw cut pavement 18 inches from the proposed face of curb.

b.With the approval of the engineer, the contractor may saw cut at the proposed face of the

curb in locations adjacent to PCC pavement.

2.Remove bituminous concrete pavement, or PCC pavement, and dispose of in accordance with

Section 202.

3.Prepare the foundation in accordance with Section 701.3.

4.Place GABC for curb placement at the location and depths shown on the plans in accordance

with Section 301.3.

5.Layout and pour PCC Type 2 Curb in accordance with Section 701.3, unless otherwise specified

on the plans.

6.Place concrete, joints, finish and cure PCC, and PCC curb and sidewalk in accordance with

Section 701.3.

7.Backfill curb in accordance with Section 701.3, after removal of forms or upon completion of the

slip-form operation.

8.Install the 4-inch PVC sleeve for signs at locations shown in the contract.

9.Construct pedestrian connections in accordance with the Standard Construction Details and

modifications of the Standard Construction Details shown in the contract, and in accordance with Sections 302 and 705.

10.Provide and place Truncated Dome Detectable Warning Surface in accordance with the Standard

Construction Details and Section 705.

11.Perform bituminous patching in accordance with Section 401 and PCC patching in accordance

with Section 503 as shown in the contract or otherwise match the existing pavement structure.

12.Provide and install tubular marker delineators on all corners of the island and in accordance

with Section 824.

a.Provide 28-inch tall and 2-inch wide tubular markers, meeting the requirements of the DE

MUTCD, unless otherwise specified in the contract or as directed by the engineer.

b.Place the maker on the island surface parallel to the roadway surface. Do not place the

tubular marker in the roadway.

13.Do not place curb and sidewalk monolithically unless otherwise directed by the contract or the

engineer.

702.4Method of Measurement.

The Department will measure the quantity of Triangular Channelizing Islands as the number of square feet, from face of curb to face of curb placed and accepted. The Department will measure Truncated Dome Detectable Warning Surface in accordance with Section 705.

702.5Basis of Payment.

A.The Department will pay the quantity of Triangular Channelizing Islands at the contract unit price

per square foot. Price and payment constitute full compensation for:

1.Excavation within the template of the item including the foundation;

2.removal and disposal of existing materials;

3.foundation preparation;

4.providing and placing all materials;

5.compaction;

6.providing forms and forming;

7.supplying, placing, finishing, and curing PCC;

8.constructing joints;

9.expansion joint material;

10.sealing;

11.sign sleeves;

12.construction of pedestrian connections within the limits of the island;

13.backfill and backfilling;

14.removal of surplus materials;

15.removal and replacement of cracked or damaged curb to the joints; and

16.providing and placing delineators.

B.The Department will pay for:

1.Excavation and embankment outside the template of the item in accordance with Section 202 at

the direction of the engineer or contract;

2.rock removal in accordance with Section 202;

3.undercut excavation in accordance with Section 202;

4.Truncated Dome Detectable Warning Surface in accordance with Section 705;

5.PCC removal in accordance with Section 211;

6.saw cutting in accordance with Section 762;

7.GABC in accordance with Section 301; and

8.bituminous pavement patching in accordance with Section 401.

ITEM DESCRIPTION UNIT 702000 TRIANGULAR CHANNELIZING ISLANDS SF

Referenced in this section

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Source: Delaware Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 361–0 of 786. View official source ↗

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701 PCC CURB, INTEGRAL PCC CURB, PCC MONOLITHIC MEDIAN, AND CURB OPENINGS

705 PCC SIDEWALK, PEDESTRIAN CONNECTIONS, AND DETECTABLE WARNING SURFACES

702TRIANGULAR CHANNELIZING ISLANDS

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