Hydrologic and Hydraulic Modeling of the Yauger Park Drainage Basin

Client: City of Olympia Public Works, Olympia, WA

The City of Olympia contracted with Clear Creek Solutions to provide hydrologic and hydraulic modeling services.

Our solutions were successful in reducing flooding in the Yauger Park drainage system caused by large events like the December 2007 flood.

The hydrologic and hydraulic model results for each alternative solution were summarized together with the required capital improvements in a report submitted to the City.

These alternative solutions included modeling the effects of management, facility improvements, and modifications to the Yauger Park stormwater drainage system.

Process and Solution

Different scenarios were run and compared with the calibrated model to view the effect the modification(s) on the drainage system.

The Western Washington Hydrology Model (WWHM) was used to model the stormwater runoff from the 1,022-acre Yauger Park drainage basin.

WWHM used HSPF to generate the stormwater runoff and SWMM to route the runoff through the City's conveyance system to Budd Inlet

Result

Flood frequency and other flow statistics were generated from the WWHM-SWMM results.

Capital improvements were included in the models to evaluate their performance prior to determining their recommended priority for implementation.

Our Projects

Land Development Stormwater Analysis
Land Development Stormwater Analysis

A private client contracted with Clear Creek Solutions to investigate potential downstream flooding in conjunction with a proposed land development in Western Washington. The development will be constructed to provide direct discharge from the project site through a tide gate to Puget Sound.

Government Canal Stormwater Analysis Study
Government Canal Stormwater Analysis Study

The City of Pacific contracted Clear Creek Solutions as the stormwater modeling subconsultant to find a pump solution to alleviate flooding in and around the Government Canal.

Monte Villa Parkway Drainage Study
Monte Villa Parkway Drainage Study

The City of Bothell contracted Clear Creek Solutions to investigate the observed street and private property drainage problems along 35th Avenue SE between 228th Street SE and 240th Street SE and south of 240th Street SE to Monte Villa Parkway.

Yauger Park Regional Stormwater Facility Expansion
Yauger Park Regional Stormwater Facility Expansion

Clear Creek Solutions (CCS) and Davido Consulting Group (DCG) were selected by the City of Olympia to assist in the proposed expansion of a joint-use recreation and stormwater flow control facility.

Hydrologic And Hydraulic Modeling Of The Yauger Park Drainage Basin
Hydrologic And Hydraulic Modeling Of The Yauger Park Drainage Basin

The City of Olympia contracted with Clear Creek Solutions to provide hydrologic and hydraulic modeling services. Our solutions were successful in reducing flooding in the Yauger Park drainage system caused by large events like the December 2007 flood.

Edwards Aquifer Recharge Modeling
Edwards Aquifer Recharge Modeling

Comparative analyses were made to determine the preferred precipitation data set for the model.

Costco Stormwater Facility Sizing
Costco Stormwater Facility Sizing

Costco's development of a new store in south Snohomish County, just north of Woodinville, required innovative strategies and analysis to protect adjacent Little Bear Creek.

HSPF Watershed Calibration Clark County, WA
HSPF Watershed Calibration Clark County, WA

Clark County contracted with Otak to update the County's stormwater ordinance. Clear Creek Solutions was hired to produce HSPF calibrations of two watersheds in the county.

Olympia Sea Level Rise Modeling
Olympia Sea Level Rise Modeling

Clear Creek Solutions constructed a WWHM-SWMM model of the City of Olympia drainage systems impacted by a rise in sea levels and associated Puget Sound high tides.

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