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7. Drainage/Culverts

• Each Planning Area and every site within a Planning Area is expected to collect all storm water and release it at points consistent with the Drainage Plan developed as part of the Service Plan for the Castle Pines North Metropolitan District. Drainage from adjoining lots or onto adjoining lots should be accommodated in such a manner that it does not cause soil erosion or impede drainage flows or result in excessive drainage onto adjacent lots. Natural drainage patterns should be maintained, enhanced or restored wherever possible.



• Culverts used as part of driveway, road or other landscape improvements shall be sized for the drainage quantities expected to pass through them. The ends of such culverts shall be cut on a diagonal to final slopes; these ends should be treated with rock or stone riprap or stone retaining walls to prevent erosion of the slope and channel. Riprap and retaining wall materials used in Castle Pines North shall be consistent with the material and design prototypes approved by the DRC. No metal flared end sections shall be allowed for use in culvert end treatments.



8. Utilities

All utilities must be underground within Castle Pines North. Above ground appurtenances such as transformers, meters, vents, etc., should be located as inconspicuously and as far back from the roadway as possible. If visible from the street, additional visual screening will be required for such appurtanences including planting, berming or other appropriate techniques such as the construction of enclosures or walls similar in materials and construction to the wood screen fence prototype or the stone wall as shown below.





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