ATTACHMENT 04 Section 01 32 23 Survey Layout and Data.pdf

SECTION 01 32 23

SURVEY, LAYOUT, AND OTHER DATA

PART 1 - GENERAL:

1.1 REFERENCES: (Not Applicable)

PART 2 - PRODUCTS: (Not Applicable)

PART 3 - EXECUTION:

3.1 CONTRACTOR VERIFICATION OF CONTRACT SURVEY DATA

During the initial site layout and before existing site conditions are disturbed the Contractor shall verify, in writing, the basic survey data provided on the drawings or documents provided (if there are any deviations). Verification shall be from the contract drawings and shall include, as a minimum, the existing benchmark data provided and northings and eastings provided to ensure that the survey data adequately reflects existing conditions. The Contractor shall not proceed with construction until the survey verification is provided to the Contracting Officer's Authorized Representative. The Contractor shall refer to Contract Clauses, "Differing Site Conditions" and "Site Investigations and Conditions Affecting Work", for additional requirements.

3.2 CONSTRUCTION TOLERANCES

Construction horizontal and vertical layout shall not deviate from the allowable tolerances as shown in the table below.

Construction Tolerances Item Horizontal Vertical

Box Culverts +/- 0.10 ft. +/- 0.05 ft.

Bridge Substructures +/- 0.03 ft. +/- 0.03 ft.

Bridge Superstructures +/- 0.02 ft. +/- 0.02 ft.

Clearing and Grubbing Stakes +/- 1.00 ft. n/a

Construction Centerline Control Points +/- 0.05 ft. n/a

Construction Centerline Station Points +/- 0.10 ft. n/a

Curbs, Walks, and Bike Paths +/- 0.03 ft. +/- 0.02 ft.

Engineering Stationing +/- 1.00 ft. n/a

Grade Stakes - Roadway Subgrade +/- 0.20 ft. +/- 0.05 ft.

Grade Stakes - Top of Rock +/- 0.20 ft. +/- 0.03 ft.

All ACP Courses +/- 0.10 ft. +/- 0.02 ft.

Manholes, Inlets, and Culverts +/- 0.10 ft. +/- 0.03 ft.

PCC Pavement +/- 0.10 ft. +/- 0.02 ft.

Slope Stakes and References +/- 0.30 ft. +/- 0.10 ft.

Traffic Markings +/- 0.20 ft. n/a

Walls - Retaining, MSE, Sound, etc. +/- 0.10 ft. +/- 0.05 ft.

Wetland Mitigation Control Stakes +/- 0.20 ft. +/- 0.20 ft.

Luminaire and Signal Poles (incl. footings) +/- 0.20 ft. +/- 0.03 ft.

Storm Sewers +/- 0.02 ft. +/- 0.01 ft

Pipe Culverts +/- 0.10 ft +/- 0.02 ft

Structure Layout +/- 0.02 ft +/- 0.01 ft

Concrete Barriers +/- 0.02 ft +/- 0.01 ft

Electrical Installation +/- 0.02 ft +/- 0.01 ft

Supplemental Control Third Order Third Order

Note: Where tolerances differ from Building Codes, such as ACI, the stricter shall apply.