§ 25-39. Maintenance of parking facilities and design specifications.

All off-street parking facilities required by this article shall be surfaced, drained and periodically maintained by the owner or operator, and such facilities shall be arranged for convenient access and safety of pedestrians and vehicles. No open area in an off-street parking area shall be encroached upon by buildings, storage, sales, repair work, dismantling or servicing of any kind or any other use.

Design specifications: All parking plans for uses must first be submitted to the city engineer and code administrator for review and approval. Proper entrances, curbs, lanes and signage must be shown. All plans must be to scale and be competently drawn.

(a)

Surface:

(1)

Residential (light traffic): Minimum four-inch Portland cement concrete or six-inch asphaltic concrete;

(2)

Commercial (heavy loads): Minimum six-inch Portland cement concrete or eight-inch asphaltic concrete;

(3)

Alternate design specification:

a.

Residential (light traffic): Six-inch full depth asphaltic concrete or four-inch asphaltic concrete with five (5) inches of untreated aggregate subbase, equivalent with MSHTD specifications for Type 2 aggregate for base, either gradation A or gradation B. The subbase would need to be compacted to one hundred (100) percent of standard maximum density.

b.

Commercial (heavy loads): Eight-inch full depth asphaltic concrete, or six-inch depth asphaltic concrete and five (5) inches of untreated aggregate subbase, equivalent to MSHTD specification for Type 2 aggregate for base, either gradation A or gradation B. The subbase would need to be compacted to one hundred (100) percent of standard maximum density.

(b)

Drainage: Plans of parking areas must be so designed to allow proper runoff without creating damage to surrounding properties. Plans must be submitted to the code administrator and city engineer and approved prior to construction.

(c)

Subbase: Ninety-five (95) percent density is required for base prior to construction of parking area.

(d)

Curbs, parking lots, sidewalks: Curbs will be required in all parking areas/lots other than one- and two-family residential. Entrances from public streets shall be six (6) inch minimum depth from the physical street connection to the property line. All parking lots, sidewalks and walkways to parking areas shall be required to have reinforcements installed in all concrete that is less than six (6) inch in depth. Concrete poured at a depth of six (6) inch or greater will not require reinforcement. Reinforcements shall be a minimum of #3 rebar (three-eights ( 3/8 ) inch diameter bar) on no more than twenty-four (24) inch centers. If using fiber mesh in the concrete mix, the rebar reinforcement can be placed at no more than forty-two (42) inch centers. Sidewalks only shall have the option of using a six (6) inch by six (6) inch welded wire mesh of ten gauge steel, minimum, for its reinforcement.

(e)

Parking area/lot setback:

(1)

The back of the curb shall not be closer than four (4) feet to a property line on 90 degree parking, two (2) feet on sixty (60) degree and forty-five (45) degree parking patterns, and a minimum of one (1) foot curb setback is required for parallel parking.

(2)

Parking on corner lots shall not obstruct the vision of traffic approaching the intersection from any direction.

(f)

Dimensions of parking and other paved areas: Parking stall dimensions shall not be less than nine (9) feet by eighteen (18) feet for both commercial and residential developments plus the necessary space for maneuvering into and out of the space. For parking lots the minimum cross dimensions shall be as follows:

90 degree pattern—Single-loaded aisle: 42 feet;

90 degree pattern—Double-loaded aisle: 66 feet;

60 degree pattern—Single-loaded aisle: 39 feet;

60 degree pattern—Double-loaded aisle: 64 feet;

45 degree pattern—Single-loaded aisle: 31.5 feet;

45 degree pattern—Double-loaded aisle: 54 feet;

Parallel spaces 9 x 21 feet each space.

Parking lots shall be designed so that vehicles exiting a parking lot shall conduct their turning movement on the lot so served. Exception: one- and two-family dwellings, and when projects use alleys for parking lot access and in the cases of dead ends, or low traffic orientated streets, backing onto these public thoroughfares shall be permitted. Note: Determination of eligible streets shall be made by the city engineer and zoning administrator.

(Ord. No. 10904, 3-19-90; Ord. No. 11029, § 5, 4-6-92; Ord. No. 11813, 11-6-2007; Ord. No. 11996, § 1, 3-19-2012)