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' Monument Creek Bridge detour- II Paso County is currently planning to reconstruct the ' existing btidge (Project #3021) and upgrade its loading capacity ro 40 tons. As a part of this reconstruction project a 30 foot wide detour road and creek crossing will be constructed immediately, south (downstream) of the bridge. This detour will insure normal traffic use of ' Baptist Road. Depending upon the timing of the bridge recoaswction work, pit traffic may require the use of the detour for the creek crossing. Negotiations for the requirrd additional bridge R-O-W and temporary construction easements for the detour road are underway. The ' County will maintain the detour pomon and of course the bridge reconstruction. All points of entry to pit access roads from public R-O-W will be secured by a gate and posted to the t exclusive use of the proposed pit operations. Signs will identify the pit operator and appropriate permit information. Haul traffic is expected to average 15 tnrcks per working day. This will vary according ro market conditions. The frequency of normal daily haul traffic will be random due to the ' hauler's specific needs. Due to the proposed signage and mechanical truck access devices which step the truck traffic at the two intersections with Baptist Road, the haul rocks will not adversely impact traffic on Baptist Road. Truck traffic will not commingle with Baptist Road traffic except in that portion of the 60' Right-0f-way between Mitchell Road and the [-25 access. ' 4. IMPACTS TO SENSITIVE OR SIGNIFICANT FEATURES ' A. There are no known arohaeological, paleontological or historical resourt:es known to be in the vicinity of this site which will be adversely affected by this activity. ' B. There aze no known hazardous environmental features of this proposed activity. No wetlands, floodplains or geologic hazards are present in the vicinity of the proposed operations ' Wildlife habitat surveys have been initiated with the Colorado Division of Wildlife and protective measures will be implemented by the applicant during operations and reclamation periods. ' S. DRAINAGE PATTERNS ' A. Existing Drainage: Figure 2.3a depicts the existin¢ drainage pauems originating above upstream) of the proposed 14.6 acre pit and also within the pit itself. The basins have been subdivided with respect to offsite or onsite drainage. Basins I & VI are contiguous yet Basin I is aIl offsite drainage whereas Basin VI otiginates on-site. The same analogy may be offered for Basins II & III. ' Basin I (6.38 acres) is largely comprised of the older, previously reclaimed pit area which has been closed according to State/County criteria. This basin drains as sheet flow to the east with variable slopes from 34'0 on the lower east end to 25r9o on the upper west end. All of the ' runoff from the 6.38 acres flows into the proposed pit area. The flatter slopes in Basin I Lave prevented significant damage above the pit. Since reclamation efforts Lave been successful, 1 P-10