Brush CO Alternatives Analysis Special Projects Program

1: Detention

At a location approximately three miles north of the Morgan County Line and east of SH 71 just south of County Road D, a potential reservoir will be sized. This location was chosen after a brief investigation of topographic data in the area. AECOM will calculate the ability to detain the 100-year event, and will comment on the reservoir’s classification per the Office of the State Engineer’s requirements and additional design requirements.

Reduces flooding potential in Brush

Possible storage of water for agricultural or recreational uses

4 mile dam, with minimum dam height 34 feet at highest point

Spillway must carry the Probable Maximum Flood

Substantial property acquisition and resident relocation from 11 properties required

2: Channelization

Channelization will be analyzed without embankment modifications. AECOM will attempt to reduce flood considerations by increasing channel capacity for a portion of Beaver Creek. The channelization alternative without embankment modification will require bridge replacements at County Road S, two BNSF Bridges, at SH 34, and at I-76.

Construct 1.8 miles of channel improvements and expand capacity of County Road 29 Bridge, 2 BNSF Bridges, and the SH 71 Bridge

Right of way acquisitions needed to allow for substantial bridge widenings and channel widenings

3: Levee

Approximately 2.8 miles of levee will be modeled to prevent inundation of downtown Brush north of the Burlington Northern Santa Fe Railroad (BNSF) Rail Bridge. This levee could also offer an opportunity for a recreational trail. AECOM will comment on the probability of certifying the levees to meet 44 Code of Federal Regulations Part 65.10 (44 CFR 65.10) given the railroad tie-ins and construction costs.

Reduces flooding potential in Brush

Provides Beaver Creek Trail

Construct 2.8 mile levee

Raise County Road S, BNSF, County Road R, and SH 34 to Cross over Levee

4: Combination

Based on preliminary findings of effectiveness of alternatives 1 to 3, AECOM will prepare a fourth alternative combining the more cost effective elements of options 1 to 3.