Tampa Bay Region - Southwest Florida Water Management District

N374
Mapping - Pasco County - NAVD88 Vertical Control Densification
Project Type
AORs
Flood Protection
Cooperative Funding
Strategic Initiatives
Floodplain Management
Pasco County
Cooperator(s)
Project Manager Jim Owens
Task Manager(s) Jim Owens
Status
Proposed Coop. Funding Application
Recommendation
Fund as a Low priority. This project supports the NAVD88 Migration Project (B134) and the topographic mapping and watershed
modeling currently underway for Pasco County. This will be the third year of this survey control densification effort. The County has
been an active partner with the District in establishing survey control since 1990 and continues to be a leader in this area.
Description
This project improves the quality and accuracy of the vertical control survey network in Pasco County by creating approximately 150
new benchmarks. The District has been cooperating with the County, Florida Department of Environmental Protection and the
National Geodetic Survey on the replacement of the obsolete National Geodetic Vertical Datum of 1929 (NGVD29) with the more
accurate North American Vertical Datum of 1988 (NAVD88). This is the third year that the County and District have cooperated on
this effort. This project enables public and private surveyors and engineers to make an orderly transition to NAVD88. It also allows
the County to be on the same vertical datum as the District and to comply with the federal and state surveying and mapping
requirements.
Benefits
This project has the following benefits. 1) Reduces costs to public and private surveyors by increasing the density and accuracy of
the survey benchmarks. 2) Supports the development of Watershed Management Plans for the County thus contributing to flood
protection, natural systems, water quality and water supply. 3) Pasco County is a participant in FEMA's Community Rating System
and this project will help improve the community rating. This reduces the cost of federal flood insurance for policy-holders in the
County. 4) Supports County and District topographic mapping efforts.
Costs
The total cost for contractual services for the FY2013 Cooperative Funding Initiative application is $200,000, the costs are being
split (50%/50%) evenly between the District and the County. The District is the lead for this project, and the County will reimburse
the District 50 percent of the project costs not exceeding $100,000. Additional costs are associated with staff time required to
manage the project.The total cost for contractual services for the FY2012 Cooperative Funding Agreement is $200,000, the costs
are being split (50%/50%) evenly between the District and the County. The District's cost is split between the Coastal Rivers Basin
($40,000), the Hillsborough River Basin ($40,000), and the Pinellas Anclote River Basin ($20,000) based on approximate area.
The District is the lead for this project, and the County will reimburse the District 50 percent of the project costs not exceeding
$100,000. Additional costs are associated with staff time required to manage the project.
Additional Information
This project will be administered by the District. The vertical control survey work will be published by the National Geodetic Survey
(NGS). All vertical control data produced by this project will be made available through Internet access via LABINS web site and the
NGS web site.
Prior
Funding
Cumulative
Transfer or
Lapsed Funding
FY2012
Funding
FY2013
Funding
Future
Funding
Total
Funding
District Budgeted - Ad Valorem
Based Revenue
013 Hillsborough River Basin 0 0 43,848 20,000
0
63,848
015 Coastal Rivers Basin 0 0 42,887 50,000
0
92,887
016 Pinellas-Anclote River Basin 0 0 22,887 30,000
0
52,887
District Budgeted - Outside
Revenue
Pasco Co - NAVD88 Vertical Control
(N374)
0 100,000 0 100,000
0 200,000
Total
$409,622
97