Iowa Lakes Valuation Project



Rock Creek Lake   


Iowa lakes have great value to the citizens of the state. In the process of using lakes for fishing, boating, swimming and enjoying other outdoor recreation, Iowans also spend money that benefit local economies. During the 2002-2005 period, Rock Creek Lake averaged 80,301 visitors annually. They spend an average $6.88 million annually which in turn supports 137 jobs and $1.84 million of labor income in the region.

Back to Economic Value of Direct and Secondary Recreational Spending for Rock Creek Lake.

Scenario: Reducing Total Nitrogen, Total Phosphorous, and Suspended Solids by 50 percent.

Category Base Scenario
Single Day Visitors 66,504 95,866
Multiple Day Visitors 13,797 19,889
Sales $9,377,291 $13,517,463
Income $1,840,757 $2,653,470
Jobs 137 197
Rock Creek Lake
Single Day Trips, 2002-05 Average 66,504
Multiple Day Trips, 2002 13,797
Total Trips, 2002 80,301

Each recreation trip or visitation has an associated set of expenditures. The composition of these expenditures for typical trips of single day or multiple days (Table 1) is based on a survey of Storm Lake and Rock Creek Lake during the 2002 season. Applying these averages to the lake visitors in the above table results in the estimated spending figures in Table 2.

This level of spending is linked to other economic activity in the region as the initial expenditures are re-spent on goods and services in the regional economy. These multiplier effects are estimated with an Input-Output model for the region and are summarized in Table 3.