SPECIAL PROVISION 464---006 Reinforced Concrete Pipe

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25 Νοε 2013 (πριν από 3 χρόνια και 10 μήνες)

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Ha
rris County Toll

Road Authority

Tomball Tollway

Co
ntract 80
2

SP

4
6
4
-
006

Job No.

13/0180


1
-
2


SPECIAL PROVISION

464
---
006

Reinforced Concrete Pipe

For this project, Item 464, “Reinforced Concrete Pipe,” of the Standard Specifications, is hereby
amended with respect to the clauses cited below, and no other clauses or requirements of this
Item are wa
ived or changed hereby.

Article 464.2. Materials, Section A. Fabrication
is voided and replaced by the following:

Fabrication plants must be approved by the Construction Division in accordance with
DMS
-
7310
, “Reinforced Concrete Pipe and Machine
-
Made Preca
st Concrete Box Culvert
Fabrication and Plant Qualification,”

before furnishing precast reinforced concrete pipe for
Department projects. The Construction Division maintains a list of approved reinforced concrete
pipe plants.

Furnish material and fabricate

reinforced concrete pipe in accordance with DMS
-
7310,
“Reinforced Concrete Pipe and Machine
-
Made Precast Concrete Box Culvert Fabrication and
Plant Qualification.”

Article 464.2. Materials, Section B. Design, 1. General.
Table 2 is voided and replaced by
the
following:

Table 2

Arch Pipe

Design Size

Equivalent

Diameter (in.)

Rise

(in.)

Span

(in.)

1

18

13
-
1/2

22

2

21

15
-
1/2

26

3

24

18

28
-
1/2

4

30

22
-
1/2

36
-
1/4

5

36

26
-
5/8

43
-
3/4

6

42

31
-
5/16

51
-
1/8

7

48

36

58
-
1/2

8

54

40

65

9

60

45

73

10

72

54

88


Article 464.2 Materials, Section C. Physical Test Requirements

is voided and not replaced.

Ha
rris County Toll

Road Authority

Tomball Tollway

Co
ntract 80
2

SP

4
6
4
-
006

Job No.

13/0180


2
-
2


Article 46
4
.2. Materials, Section
D
. Marking
s.

The first paragraph is voided and replaced by
the following:

Furnish each section of reinforced concrete pipe marked

with the following information specified
in DMS
-
7310
, “Reinforced Concrete Pipe and Machine
-
Made Precast Concrete Box Culvert
Fabrication and Plant Qualification”:



class or D
-
Load of pipe,



ASTM designation,



date of manufacture,



pipe size,



name or trademar
k of fabricator and plant location,



designated fabricator’s approval stamp,



pipe to be used for jacking and boring (when applicable), and



designation “SR” for

pipe meeting sulfate
-
resistant concrete plan requirements (when
applicable).

Article 46
4
.2. Mate
rials, Section
E
.
Inspection

is voided and replaced by the following:

Provide access for inspection of the finished pipe at the project site before and during
installation.

Article 46
4
.2. Materials, Section
F
.
Causes for Rejection

is voided and replaced by

the
following:

Individual section of pipe may be rejected for any of the conditions stated in the Annex of
DMS
-
7310
, “Reinforced Concrete Pipe and Machine
-
Made Precast Concrete Box Culvert
Fabrication and Plant Qualification.”

Article 464.2. Materials, S
ection G. Repairs

is voided and replaced by the following:

Make repairs if necessary as stated in the Annex of DMS
-
7310, “Reinforced Concrete Pipe and
Machine
-
Made Precast Concrete Box Culvert Fabrication and Plant Qualification.”


Article 46
4
.2. Materials
, Section
H
.
Rejections

is voided and not replaced.