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Drainage and Flood Control
Projects
Kirker
Creek Improvement Project (
Rodeo
Creek (Hercules): Route
4 (West) Gap Closure Project - Segment 1. The project included a detailed
analysis of Rodeo Creek using HEC-RAS and a basin routing using HEC-HMS which
was used to justify construction of a levee to prevent flooding of the
highway. The project also included design of 1.7 miles of highway widening
and associated drainage analysis and design. This work required an individual
permit from the Corps of Engineers, Fish and Game permit, and a waste
discharge permit from the Regional Water Quality Control Board. A "Location
Hydrology Study" was also completed for the new Route 4 Bridge crossing
of Rodeo Creek. West
Antioch Creek Channel Improvement Project: This project on the lower reach of
West Antioch Creek required detailed hydraulic analysis using HEC-2. The project
also required Department of Fish and Game, US Army Corps of Engineers
(Individual Permit), and Regional Water Quality Control Board permits. As
part of the permitting process, alternative analysis was required for
determining appropriate channel type to fit project constraints, as well as a
mitigation-enhancement and monitoring plan. Proved to the Department of Fish
and Game that a rectangular concrete channel was the only viable option for
channel improvement in a section downstream of Fourth Street. Strawberry
Creek (Sacramento): This project included the analysis and design of
roadway drainage and creek capacity improvements for the City of Sacramento
as part of the Route 99/Calvine-Cosumnes River Boulevard Interchange Project.
Work included new structures over Strawberry Creek, creek relocation and
improvements, consideration of in-stream detention, regulatory agency permits
processing, and environmental mitigation. Work also included the analysis and
design of roadside drainage facilities for a $13 million interchange project,
including detention basins for City NPDES requirements.
Orchard
Creek ( Dry
Creek Bridge Replacement Project: Design and replacement of a scour
critical bridge in Butte County. Required traffic detour, via a low flow
crossing, which impacted endangered species, requiring Section 7 Consultation
with US Fish and Wildlife Service. This project also required Fish and Game
and US Army Corps of Engineers permits. Complicated hydrology and hydraulic
analysis required close coordination with Caltrans Division of Structures
Hydraulics Branch. 1997
Caltrans Storm Damage On-call: This project included over $22 million in
storm damage repair/restoration on State highways in Butte, Plumas, Sierra
and Nevada Counties on the North and Middle Forks of the Feather River, the
North Fork of the Yuba River, Indian Creek, Jackson Creek, Sacramento River,
and Dry Creek. Work included design of bank repair, bank protection, roadway
reconstruction, slide repair, new retaining walls, retaining wall repair/replacement,
bridge repair and replacement, drainage improvements, river hydraulic
analysis, right of way engineering, value engineering studies, and
coordination with regulatory agencies and utilities.
49 - Ladies Canyon Bridge Highway 49 - N.
Yuba River Other
projects involving streams and lakes include:
HEI
has also provided studies and design solutions for improvements to small
urban drainage problems for the following projects:
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