Project: Isle of Palms Connector (SC 517)

Summary

The Isle of Palms Connector (SC 517) is a 3.84 mile fixed span bridge connecting the mainland town of Mount Pleasant, SC with the island on the Charleston, Carolina coast which created opportunities for commercial development along US 17.

Characteristics and Setting

Classification/Type Bridge
Transportation Mode Highway
Usage 23,600
Length (mi) 4.00
Economic Distress 1.09
Population Density (ppl/sq mi) 371
Population Growth Rate (%) 1.6%
Employment Growth Rate (%) 2.7%
Market Size 228,216
Airport Travel Distance (mi) 13.0000
Topography 1

Geography

Region Southeast
State SC
County Charleston
City Mt Pleasant, Isle of Palms
Urban/Class Level Metro
Local Area N/A
Impact Area N/A
Transportation System None

Timing

Initial Study Date N/A
Post Construction Study Date 1998
Construction Start Date 1990
Construction End Date 1993
Months Duration N/A

Costs

Project Year of Expenditure (YOE) N/A
Planned Cost (YOE $) N/A
Actual Cost (YOE $) $35,000,000
Actual Cost (2022$) $96,205,600

Pre/Post Conditions

NOTE: All pre/post dollar values are in 2022$

Transportation

Measure Pre project Post project Change % Change

Impacts

NOTE: All impact dollar values are in 2022$

Measure Total

Case Location

View Map

Narrative

ISLE OF PALMS CONNECTOR CHARLESTON, SC

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