§ 16-32. Specifications—Pertaining to roads and highways.

The specifications which apply in this article, pertaining to public roads and highways, shall be as follows:

(1)

Oil pipeline, gas pipeline and water pipeline:

a.

The design of oil, gas, and water pipelines used in the structure shall be equal to the latest specifications of the American Gas Association, the American Water Works Association or the American Society for Testing Materials, as the case may be.

b.

The location of all structures paralleling the road right-of-way shall be determined by the parish engineer at the time the permit is issued.

c.

All water pipelines crossing the highway or public road, except water lines of less than two inches O.D., shall be encased in a suitable pipe of larger diameter. Casing shall extend through the roadbed at least from ditch line to ditch line. Water pipelines or casings, as the case may be, shall have an earth cover of not less than 24 inches as indicated on the plans, attached hereto and made a part hereof, and/or as determined by the parish engineer.

d.

Oil and gas lines of less than two inches O.D. crossing the highway or public road shall not require encasement. The parish engineer, on an individual basis, shall determine the necessity for encasing or not encasing oil and gas lines of greater than two inches O.D. crossing the highway or public road, which determination shall be indicated in writing upon the permit. All oil and gas lines of greater than two inches O.D. crossing the highway or public road, which are not required to be enclosed, shall be suitably protected within the road right-of-way by a Portland cement concrete pad as indicated on the plans, attached hereto and made a part hereof, and/or as determined by the parish engineer. All oil and gas pipelines or casings, as the case may be, shall have an earth cover of not less than 24 inches as indicated on the plans, attached hereto and made a part hereof, and/or as determined by the parish engineer.

e.

All oil, gas, and water pipelines crossing the highway or public road, except lines of less than two inches O.D., shall be marked and identified by a suitable sign placed on a steel or concrete post set in a permanent type mounting over such line at a location adjacent to the road right-of-way line.

f.

Unless shown in the permit, all pipelines shall cross the highway or public road at right angles to the centerline of such highway or public road. No existing drainage structure under the highway or public road may be used for this purpose.

g.

In crossing the highway or public road, cutting of the roadbed or tunneling under the roadbed is specifically prohibited. Pipe or casing, as the case may be, shall be installed by either boring or jacking. When the boring method is used, boring shall extend at least the full distance indicated on the plans, attached hereto and made a part hereof. Diameter of the bored hole shall be just large enough to receive the pipe or casing. Any methods that give satisfactory results may be used. In jacking large casings under the highway or public road, the excavation ahead of the pipe shall be only large enough to receive the pipe.

h.

Open trenches with the right-of-way shall be sand or earth bagged, as indicated on the plans, attached hereto and made a part hereof.

i.

Utility gas and water pipelines in a closed system or subdivision may be constructed by the open trench method without casing being required.

(2)

Sanitary sewer line and storm sewer line:

a.

Sanitary sewer lines and storm sewer lines, which parallel the highway or public road, shall be concrete pipe, vitrified clay pipe, or cast iron pipe.

b.

The location of sanitary sewer lines and storm sewer lines paralleling the highway or public road shall be determined by the parish engineer at the time the permit is issued.

c.

Sanitary sewer lines which cross the highway or public road shall be cast iron pipe and shall extend the full right-of-way of the highway or public road, as indicated on the plans.

d.

Storm sewer lines which cross the highway or public road shall be concrete pipe and shall extend the full right-of-way width of the highway or public road, as directed by the parish engineer.

e.

The design of cast iron pipe used in the structure shall be equal to the latest specifications of the American Water Works Association.

f.

The design of vitrified clay pipe and concrete pipe used in the structure shall comply with the latest specifications of the American Society for Testing Materials.

g.

All joints shall be watertight. No infiltration will be permitted.

h.

All sanitary sewer lines and storm sewer lines shall be laid on a grade of not less than two-tenths percent (a fall of two-tenths foot in 100 feet).

i.

All sanitary sewer lines and storm sewer lines crossing the highway or public road shall be incased in a suitable pipe of larger diameter. Casing shall extend through the roadbed at least from ditch line to ditch line and shall have an earth cover of not less than 24 inches.

j.

Sanitary sewer lines and storm sewer lines in a closed system or subdivision may be constructed by the open trench method without casing being required.

k.

Unless shown in the permit, all pipelines shall cross the highway or public road at right angles to the centerline of such highway or public road. No existing drainage structure under the highway or public road may be used for this purpose.

l.

In crossing the highway or public road, cutting of the roadbed or tunneling under the roadbed, is specifically prohibited. Casing shall be installed by either boring or jacking. When the boring method is used, boring shall extend at least the full distance indicated on the plans. Diameter of the bored hole shall be only large enough to receive the pipe or casing. Any methods that give satisfactory results may be used. In jacking large casing under the highway or public road, the excavation ahead of the pipe shall be only large enough to receive the pipe.

m.

Open trenches within the right-of-way shall be sand or earth bagged, as indicated on the plans.

(3)

Cables:

a.

Cables shall be installed in accordance with the plans, or as directed by the parish engineer.

b.

Power cables, telephone cables, telegraph cables, control cables, and other communication lines shall be covered in a poly sheath. All cables shall be manufactured in accordance with the requirements of the National Electrical Code standards.

c.

Splicing of cables and conduits without such rights-of-way controlled by grantor is permissible; provided, however, that splicing of cables and conduits directly under the street, road, or highway bed is prohibited, except in the event of an emergency.

d.

Where the voltage in cables shall be 110 volts or greater, a suitable danger sign shall be installed.

e.

The location of cables paralleling the highway or public road shall be determined by the parish engineer at the time the permit is issued.

(4)

Rice flumes:

a.

Rice flumes shall be installed in accordance with the plans and shall consist of a barrel with concrete headwalls. The barrel may be corrugated galvanized metal pipe or concrete pipe, at the option of the applicant. A reinforced concrete barrel may be used.

b.

The design of concrete pipe shall comply with the latest specifications of the American Society for Testing Materials.

c.

The design of corrugated galvanized pipe shall comply with the latest specifications of the American Railway Association.

d.

Concrete headwalls shall be constructed on private property and shall consist of one part Portland cement, two parts sand, and four parts gravel, mixed by volume, so as to have a minimum compressive strength of 2,000 pounds per square inch. Concrete headwalls shall be reinforced, to the satisfaction of the parish engineer.

e.

Rice flumes shall cross the highway or public road at right angles to the centerline of the road, as shown on the plans.

f.

Flumes may be laid by the open cut method. The trench shall be backfilled in six-inch layers and restored to its original condition. Resurfacing of the roadbed shall require a minimum thickness of 12 inches of clam shell or gravel over the entire area of the disturbed surface.

(5)

Driveways:

a.

Driveways shall be installed in accordance with the plans and shall consist of a concrete pipe drain laid to the satisfaction of the parish engineer.

b.

Driveways shall be constructed at right angles to the centerline of the road.

c.

Concrete pipe used in the structure shall comply with the latest specifications of the American Society for Testing Materials and shall have watertight joints.

d.

The low line elevation of the pipe shall be determined by the parish engineer.

e.

Backfill over and around the pipe shall be placed in six-inch layers and the driveway surfaced with six inches of clam shell or gravel.

f.

Concrete headwalls shall be permissible, provided the details of the headwalls meet with the approval of the parish engineer.

g.

The minimum diameter of pipe used in the structure shall be 12 inches.

(Code 1969, § 15-24)