TxDOT Specifications

2004 Standard Specifications Book

Last Updated (12/09/2004)

This document is provided for information only and is not to be used for bidding or contract purposes.

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DIVISION IV - STRUCTURES (Items 472 through 499)

Table of Contents

472 REMOVING AND RE-LAYING CULVERT AND STORM DRAIN PIPE
473 LAYING CULVERT AND STORM DRAIN PIPE
474 SLOTTED DRAIN
476 JACKING, BORING, OR TUNNELING PIPE OR BOX
479 ADJUSTING MANHOLES AND INLETS
480 CLEANING EXISTING CULVERTS
481 PVC PIPE FOR DRAINS
483 SCARIFYING CONCRETE BRIDGE SLAB
490 TIMBER STRUCTURES
491 TIMBER FOR STRUCTURES
492 TIMBER PRESERVATIVE AND TREATMENT
495 RAISING EXISTING STRUCTURES
496 REMOVING STRUCTURES
497 SALE OF SALVAGEABLE MATERIAL
499 ADJUSTING STEEL SHOES

ITEM NO. - TITLE AND REQUIREMENTS

472 - REMOVING AND RE-LAYING CULVERT AND STORM DRAIN PIPE

SPECIFICATION REQUIREMENTS
1) Locations must be shown on plans.
2) Details of work to be shown in plans

PAYMENT DESCRIPTION

UNITS

1) "Removing and Re-laying Pipe (Size Specified)"

LF

REFERENCE ITEMS
Required
(400)
Optional
(460) When corrugated metal pipe is required.
(464) When reinforced concrete pipe is required.
(476) When jacking, boring, or tunneling of pipe is required.

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473 - LAYING CULVERT AND STORM DRAIN PIPE

SPECIFICATION REQUIREMENTS                                           
1) Locations and details must be shown on plans.
2) Materials furnished to be shown in plans.

PAYMENT DESCRIPTION

UNITS

1) "Laying Pipe (Size Specified)"

LF

REFERENCE ITEMS
Required
(400)
Optional
(460) When corrugated metal pipe is required.
(464) When reinforced concrete pipe is required.
(476) When jacking, boring, or tunneling of pipe is required.

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474 - SLOTTED DRAIN

SPECIFICATION REQUIREMENTS
1) This is a plans quantity measurement item.
2) “Type” is either steel or aluminum-coated steel.

PAYMENT DESCRIPTION UNITS
1) "Slotted Drain (Type) Pipe Diameter Specified)"

LF

2) "Slotted Drain Outfall (Type) (Pipe Diameter Specified)"

LF

REFERENCE ITEMS
(400), (445), (460)

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476 - JACKING, BORING OR TUNNELING PIPE OR BOX

SPECIFICATION REQUIREMENTS                                                 
1) Specify the type of pipe to be used when jacking, boring, or tunneling pipe on the plans.
2) This is a plans quantity measurement item.
3) This item includes payment for the pipe or box. Do not include a separate pay item.

OPTIONAL REQUIREMENTS
1) When required, protection methods for excavations greater than five (5) feet in depth will be measured and paid for as required under Item 402, “Trench Excavation Protection,” or Item 403, “Temporary Special Shoring.”
2) When corrugated metal pipe is being jacked, bored, or tunneled, it will be in accordance with Item 460.
3) When reinforced concrete pipe is being jacked, bored, or tunneled, it will be in accordance with Item 464.
4) When reinforced concrete box is jacked, it will be in accordance with Item 462.

PAYMENT DESCRIPTION UNITS
1) "Jacking, Boring, or Tunneling Pipe (Type Specified) (Size Specified) (Class Specified)" LF
2) "Jacking, Boring, or Tunneling Pipe (Type Specified) (Size Specified) (Design Specified)" LF
3) "Jacking or Tunneling Box Culvert (Size Specified)" LF

REFERENCE ITEMS
Required
None
Optional
(460) When corrugated metal pipe is required.
(462) When concrete box culvert is required.
(464) When reinforced concrete pipe is required.

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479 - ADJUSTING MANHOLES AND INLETS

SPECIFICATION REQUIREMENTS
1) Adjusted to positions, dimensions, and/or elevations as shown on plans.
2) Capping details must be shown on plans.

PAYMENT DESCRIPTION UNITS
1) "Adjusting Manholes" EA
2) "Adjusting Inlets" EA
3) "Adjusting Manholes and Inlets" EA

REFERENCE ITEMS
(400), (421), (465)

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480 - CLEANING EXISTING CULVERTS

SPECIFICATION REQUIREMENTS
1) Locations must be shown on the plans.

PAYMENT DESCRIPTION UNITS
1) "Cleaning Existing Culverts" CY, EA

REFERENCE ITEMS
None

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481 - PVC PIPE FOR DRAINS

SPECIFICATION REQUIREMENTS
1) Locations of PVC pipe must be shown on plans.
2) The sizes and types of PVC pipe must be shown on plans.
3) Details of any fittings, hangers, clamps, straps, anchors, and guard plates, including any material requirements, must be shown on the plans.

PAYMENT DESCRIPTION UNITS
1) "PVC Pipe (Size Specified) (Type Specified)" LF

REFERENCE ITEMS
(400)

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483 - SCARIFYING CONCRETE BRIDGE SLAB

SPECIFICATION REQUIREMENTS                                             
1) Depth must be shown on plans.
2) Locations and/or areas must be shown on plans.

PAYMENT DESCRIPTION UNITS
1) "Scarifying Concrete Bridge Slab" SY

REFERENCE ITEMS
None

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490 - TIMBER STRUCTURES

SPECIFICATION REQUIREMENTS
1) This Item should be utilized for construction of structures or portions of structures.
2) Need paint note in the plans or General Notes and Specification Data if painting is required.
3) Size, type, length, and details of the required hardware must be shown on the plans.
4) Sizes of timber must be shown in the plans.
5) Details of work to be shown in plans

PAYMENT AND MEASUREMENT
Subsidiary to Item 491.

REFERENCE ITEMS
(445), (491), (492)

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491 TIMBER FOR STRUCTURES

SPECIFICATION REQUIREMENTS
1) Details for sizes and cut to be shown on the plans.
2) This Item should be utilized for construction of structures or portions of structures.
3) Surface finish to be shown on the plans.
4) Type and grade of timber to be shown on the plans.

PAYMENT DESCRIPTION UNITS
1) "Treated Timber" MBF
2) "Untreated Timber" MBF

REFERENCE ITEMS
(490), (492)

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492 - TIMBER PRESERVATIVE AND TREATMENT

SPECIFICATION REQUIREMENTS                                                  
1) This Item governs for the treatment of lumber and timber with preservative.

PAYMENT AND MEASUREMENT
Subsidiary to the various bid items in the contract.

REFERENCE ITEMS
None

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495 - RAISING EXISTING STRUCTURES

SPECIFICATION REQUIREMENTS
1) Location of structure(s) to be raised must be shown on plans.
2) Indicate any special lifting restrictions (e.g., jack locations) on the drawings.
3) Include pedestal details.

PAYMENT DESCRIPTION UNITS
1) "Raising Existing Structure" LS

REFERENCE ITEMS
Optional
(442), (448) When metal pedestals are allowed.
(420), (421), (440) When concrete pedestals are allowed.
(434) When elastomeric bearings are required.

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496 - REMOVING STRUCTURES

SPECIFICATION REQUIREMENTS
1) Location of cuts in beams to be salvaged must be shown on plans.
2) For steel structures to be removed, test paint for contamination. Provide the test results to the Contractor by general note.
3) Designate material to be salvaged in the plans.
4) Designate storage site for salvaged material in the plans.

PAYMENT DESCRIPTION UNITS
1) "Removing Structure (Type Specified)" EA, LF

REFERENCE ITEMS
Optional
(430) When portions of existing structure are to remain in place.

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497 - SALE OF SALVAGEABLE MATERIAL

SPECIFICATION REQUIREMENTS                                                 
1) Quantity to be shown on the plans.

PAYMENT DESCRIPTION UNITS
1) "Salvaged Material (Credit Item)" LS

REFERENCE ITEMS
None

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499 - ADJUSTING STEEL SHOES

SPECIFICATION REQUIREMENTS
1) The locations for adjusting steel shoes must be shown on plans or as required by the Engineer.
2) Include a note on the plans specifying that the existing paint on the beams and shoes contains lead and/or other hazardous materials.
3) Details for adjusting steel shoes on a structure must be shown on plans.
4) Indicate if any beam ends are to be trimmed.
5) Indicate shoe design or jack capacity on the plans.
6) Show any concrete spalling to be repaired that will be paid for using Item 429. Concrete repair is paid for and constructed using Item 429.

PAYMENT DESCRIPTION UNIT
1) "Adjusting Steel Shoes" EA

REFERENCE ITEMS
(429), (441), (442), (446), (448)

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