Leslie Hope was the South Beebe Draw Metropolitan District Engineer, a stormwater improvement district, from 2000 to 2007. Her duties as a District Engineer consisted of preparing a regional storm drainage master plan for 29,266 acres that were tributary to an impaired waterway, design, bidding and construction observation of regional drainage and water quality facilities, and review of drainage reports submitted for sites within the district boundaries.
The hydrology was determined using the Colorado Urban Hydrograph Procedure. The precipitation amounts were derived from the NOAA maps for Colorado. The routing of the stormwater utilized the computer program UD-SWMM. Regional detention facilities were placed to control stormwater rates and to increase the water quality to the Beebe Seep. Land Development Desktop version 2007 was the drafting software used to prepare the construction drawings for the regional detention facilities within Bromley Park Planned Unit Development. The computer program Flowmaster by Haested Methods was used to design the irregular channels.
The Army Corps of Engineers, HEC-RAS backwater computer model was used to determine the 100 year water surface elevations, base flood widths and flooding limits for the Beebe Seep and portions of the tributaries within the study limits. Stage versus storage calculations were determined on existing and proposed detention and stormwater treatment facilities.
Bromley Park Metropolitan District Engineer
Bromley Park Metropolitan District is a stormwater, roadway, water and sanitary sewer improvement district. Her duties as a District Engineer consisted of updating a regional storm drainage master plan for 2,600 acres. It required preparing construction drawings for regional drainage and stormwater quality facilities, design, bidding and construction, and review of drainage reports submitted for sites within the district boundaries.
Regional detention facilities were placed to control stormwater rates and to increase the water quality to the Beebe Seep. Beebe Seep is owned by the Farmer’s Reservior Irrigation Company, requiring multiple coordination meetings with FRICO to ensure the needs are met as well.
Massey Draw / Deer Creek Golf Course Flood Control Project
Leslie Hope was the project manager for the Massey Draw / Deer Creek Golf Course Flood Control Project involving channelization, drop structures, levees, wetland mitigation, bridges, culverts and erosion protection measures. She also performed expert witness work for this project that consisted of channelizing Massey Draw to prevent future flooding of eleven homes and an eighteen hole golf course.
The hydrology required analyzing existing precipitation gauging stations and running a Log Pearson analysis to determine the probable storm event that impacted the existing homes and golf course in June 2006. 
The hydraulic methodology utilized the ACOE’s computer program HEC-RAS to determine the existing and proposed 100 year floodplain limits. Several proposed alternatives were examined, including a levee within the golf course to prevent the flow from splitting, and drop structures in combination with channelization of Massey Draw.
Since the project was a “retro-fit”, the desires of the existing homeowner’s, Deer Creek golf course and the developers were value-engineered into the final project. A Conditional Letter of Map Revision from FEMA and an amended Army Corps of Engineer’s Individual Permit were obtained for the project. The final design consisted of mitigated wetlands within the channel terraces, two bridges for the cart path, irrigation ditch realignment, drop structures to avoid a levee situation and modifications to some of the greens and fairways within the golf course.
Mamm Creek Gravel Pit The hydraulics had to also consider alternatives for during active mining and reclamation phases. A concern of the Army Corps of Engineer’s was “pit capture”, where the Colorado River would breach the banks and redirect the primary flow of the river through the active pits. However, US Fish and Wildlife wanted to ensure a steady flow of water to prevent non-native fish from being introduced into the river. To accommodate both concerns, a Texas Crossing was installed that consisted of a riprap armored multi-stage weir that allowed a controlled entrance and exit for the Colorado River’s flow above the 2 year stage during the reclamation stage. A Scour Analysis was performed for a proposed conveyor belt bridge system to be installed across the Colorado River. The scour depths were based on the FHWA’s HEC-18. In conjunction with the scour analysis, the proposed floodway limits were delineated for this study limits based on FEMA and the City of Rifle’s guidelines.
Leslie Hope was the project manager and design engineer for determining the 50-year, 100-year, and 500-year floodplain for 4.7 miles of the Colorado River between Silt and Rifle, Colorado. The existing and proposed floodplains and floodway were determined utilizing ACOE’s HEC-RAS computer program. The HEC-RAS analysis connected the Colorado Water Conservation Board’s study of the Colorado River to the City of Rifle’s FEMA FIRM mapping. The project involved over 230 acres of proposed gravel mining operations. There were 20 cross sections of the Colorado River performed, including hydrographic surveying.
