- 643 - SECTION 726 -- CULVERT SANDFILL
726.01 Description
1.This work shall consist of sealing existing culverts as shown in the contract or as directed by the Engi neer. The Contractor shall construct bulkheads at the outlet ends and then fi lling the culvert with sand or flowable fill.
726.02 Material Requirements
1.Flowable fill shall meet the requirements of Section 1003.
2.Concrete shall meet the requirements of Section 1002.
3.Fly ash slurries will be approved based on mix submission to Materials & Research Division.
4.Sand shall meet the requi rements of Subsection 1033.02, Paragraph 3.a.
726.03 Construction Methods
1.The Contractor shall plug the culvert at locations shown in the contract. The plug shall be a bulkhead or other structure as shown in the contract.
2.The Contractor shall fill the culv ert with flowable fi ll, sand, or fine aggregate for concrete.
726.04 Method of Measurement
1.Culvert sandfill is measured by the cubic yard (m3). The quantities will be based on the culvert dimensions.
726.05 Basis of Payment
1.P a y I t e m P a y U n i t Culvert Sandfill Cubic Yard (CY) [Cubic Meter (m3)]
2.The plugs will not be paid for directly, but shall be considered subsidiary to the Culvert Sandfill.
3.Payment is full compensation for all work described in this Section. - 644 - SECTION 727 -- SUBSURFACE DRAINAGE MATTING
727.01 Description
1.This work shall consist of furnishing and installing drainage matting at bridge ends as shown in the contract.
727.02 Material Requirements
1.The drainage matting to be us ed shall be on the Department’s Approved Products List.
2.Materials that are not on the De partment’s Approved Products List may be considered for use provided a manufacturer's certificate of compliance for the proposed materials is provided to the Engineer. Material criteria are listed on the Departm ent’s Approved Products List.
727.03 Construction Methods
1.The Contractor shall place the matting at the location shown in the contract.
2.The matting shall be placed in accordance with the manufacturer's recommendation.
3.A 3 inch (75 mm) minimum lap shall be used wh en splicing the matting.
727.04 Method of Measurement
1.Subsurface drainage matting is measured by the square yard (square meter) of area covered with no allowance for overlaps.
727.05 Basis of Payment
1.P a y I t e m P a y U n i t Subsurface Drainage Matting Square Yard (SY) [Square Meter (m2)]
2.Payment is full compensation for all work described in this Section.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 677–677 of 1,048.