Ayres Knowledge Center Scour Evaluation: Bridges with Unknown Foundations | Page 39

SCOUR EVALUATION – PHASE 3 / OFFICE REVIEW REPORT
Bridge #: 794004
County: Volusia
Route: Main Street
Over: Halifax River
1. SCOUR VULNERABILITY RATING (PER FHWA)
a. Scour Critical:
■
Yes
■
Low Risk:
Foundations:
Yes
No
No
■
Known
Unknown
b. Reasons for Rating:
- STRUCTURAL ANALYSIS AND GEOTECHNICAL ANALYSIS INDICATED THAT THE STRUCTURE IS
STABLE AT THE 100-YEAR SCOUR ELEVATION O