Section 212 — Linear and Site Grading

Description

212.01This work consists of performing linear and site grading at designated locations within specified tolerances.

212.02Definitions.

(a)Linear grading. Consists of constructing and grading roadways on a designated alignment.

(b)Site grading. Consists of constructing and grading designated areas outside the roadway prism .

Construction Requirements

212.03Roadway and Site Preparation. Clear the area of vegetation and obstructions according to Sections 201 and 203.

212.04Excavation and Embankment . Construct the roadbeds and sites according to the applicable requirements of Section 204, except a s modified in this Section. Adjust the moisture content of embankment material to a moisture content suitable for compaction. Place embankment material in 12 -inch lifts and compact each lift according to Subsection 204.11(a) . If compacting with rollers is not practical, use approved mechanical or vibratory compaction equipment. Construct approach connections to existing roads, parking areas, and trails as directed. Do not make alignment or profile grade adjustments that adversely affect drainage.

212.05Grading Tolerance. Construct roadbeds and sites within the following grading tolerances:

(a)Linear grading.

(1)Alignment (centerline). Alignment may be shifted a maximum of 10 feet left or right of the planned centerline. Curve radii may be reduced by up to 50 percent. Do not construct curves with radii less than 100 feet. Compound curves are allowed. (2) Profile grade. Profile grade may be shifted a maximum of 5 feet from the plan elevation provided the new grade tangent does not vary more than 2 percent from the plan grade tangent. Connect revised forward and back grade tangents with a uniform vertical curve consistent with the design.

(b)Site grading. The footprint may be shifted a maximum of 10 feet in any direction. The profile of the site may be adjusted a maximum of 2 feet from the plan elevation.

212.06Acceptance. Linear and site grading work will be evaluated under Subsections 106.02 and 106.04. Clearing will be evaluated under Section 201. Removal of obstructions will be evaluated under Section 203.

Measurement

212.07Measure the Section 212 pay items listed in the bid schedule according to Subsection 109.02 .

Payment

212.08The accepted quantities will be paid at the contract price per unit of measurement for the Section 212 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05 .