Tuolumne County Municipal Code Ch. 11.04 Preparation of Plans

Sections:

• 11.04.010

• General.

• 11.04.020

• Submission of plans.

• 11.04.030

• Approval of plans.

• 11.04.040

• Standard sheets and scales.

• 11.04.050

• Plan details.

specifications for, and in connection with, all proposed road improvements, including any necessary dedications and easements', shall be submitted to the department for approval and shall receive the required approval prior to the beginning of construction of any such improvement. (Ord. 1559 § 1 (part), 1987).

complete and in accordance with this title, shall be submitted in triplicate to the department for approval. Plans shall include one set of reproducibles (mylars) together with the required specifications, computations and test data. and any other material requested by the director. The reproducible set of plans. containing the department's stamp of approval thereon, will be returned to the consulting engineer preparing such plans and two copies will be retained for county use and records. Should there be required alterations to or revisions of such plans as submitted, the director will return only such reproducible sheets as may require corrections. At such time as the consulting engineer preparing the plans has made the necessary revisions upon the reproducibles., those sheets will again be submitted as herein above directed. Additional copies of improvement plans may be requested by the director at his/her discretion and these shall be furnished without cost to the county. (Ord. 1559 § 1 (part), 1987).

approved or construction authorized until such time as the director signifies his/her approval by his/her signature in the stamp of approval as applied thereon by the department. There shall be no changes permitted to an approved set of plans unless such changes are resubmitted to the director for approval, as prescribed above for original plans.
Excepted from approval are any feature of the plans that are contrary to, in conflict with or do not conform to any California state law, county of Tuolumne ordinance or resolution, or generally accepted good engineering practice, in keeping with the standards of the profession even though such errors, omissions or conflicts may have been overlooked in the review of the plans. (Ord. 1559 § 1 (part). 1987).

plans are to be submitted on sheet paper of which the maximum external dimensions shall be twenty- four inches by thirty-six inches with a two and one- half inch clear margin on the left edge for binding purposes.

Plotting Scale:

Title Sheet: 2 inches = 1 mile and

1 inch = 1.1 miles

Typical Cross section: 1 inch = 100 feet

(may be modified)

Plan and Profile -

plan: 1 inch = 100 feet

profile: 1 inch = 100 feet horizontal

1 inch = 10 feet vertical

Drainage Study and Contour Map:

1 inch = 200 feet

contour intervals = 10 feet

Construction Detail: scale may be varied.

Variations of the above minimum plotting scales may be approved by the county engineer. (Ord. 1559 § 1 (part), 1987).

to be indicated on plans submitted for approval.
This does not in any way exempt the consulting engineer from the responsibility of preparing neat, accurate and comprehensive plans in keeping with the standards of the profession.

A. Title Sheet. The title sheet shall indicate section and/or grant lines and the location of development within the County. The title sheet shall also include the title of the development. name of the developer and consulting engineer, index of sheets and an approval signature certificate.

B. Typical Cross-section. The typical cross- section sheet shall indicate the minimum width of the right-of-way, pavement design, type, thickness and class, shoulder widths, ditch depth, bank slope

and side slope ratios' crown and superelevation rates, base thickness and class, slope easements, legend and scales.

C. Layout Sheet. The layout sheets shall contain thereon the entire subdivision unit on one sheet, a skeleton layout of the entire subdivision unit and the location of proposed water and/or sewer system, including appurtenances. The plotting scale as indicated as desirable in Section 11.04.040 for the above sheet may be modified for compliance with the above requirements.

D. Plan and Profile Sheets. Standard plan and profile sheets shall be used. The plan for each road shall be delineated within the plan block in the upper half of the sheet. The corresponding profile shall be plotted in the graphical block directly under the road plan. The plan shall contain thereon the right-of-way widths, catch points, cuts (solid line), fills (dashed line), cut and fill easements, culverts and structures, radii and central angles, curves lengths and scales. The profile shall contain thereon the culverts and structures, percent grade and vertical curve length elevations shown at twenty-five-foot intervals throughout the vertical curve. Scales shall clearly show the existing and proposed profiles of all roads. Stationing on plan and profile shall read from left to right unless otherwise authorized by the director.

E. Drainage Study and Contour Sheet. The drainage study and contour sheet shall contain thereon the contours of the subdivision unit and immediate vicinity sufficient to indicate the perimeter of the upland areas to be drained by each structure and associated outlet protection. Section 11.04.010 requires the submittal of computations with improvement plans at the time such plans are submitted for approval. It is required that the consulting engineer prepare and submit calculations to support the design of the drainage structures and that such be shown of the drainage study and contour sheet.

The basis for culvert design shall be “Design Flood” estimates from the California culvert practices which employs the general rules:

1. That a culvert pass a ten year flood without static head on the crown of the culvert at its entrance:

2. That design of the culvert and appurtenances be balanced to avoid serious damage from head and velocity obtained in a one- hundred-year flood. Bridges shall be designed for the one-hundred-year flood. Minimum diameter for pipes shall be eighteen inches in diameter.

F. Construction Detail Sheets. Construction detail sheet shall contain thereon details of all structures such as bridges, box culverts, drop inlets, headwalls, wingwalls, and temporary and permanent erosion control structures. A typical drainage pipe section shall be shown on the map(s). G. Cross-Section. Cross-sections shall be included in the plans where determined necessary by the director. (Ord. 2902 §1, 2008; Ord. 2765 § 1 & 2 (part), 2007; Ord. 1559 § 1 (part), 1987).