Public Works Department Second Floor of City Hall located at 688 Hwy 90, Bay St. Louis, MS 39520Hours: 7:00 a.m. – 4:00 p.m., Monday – Friday Phone: (228) 467-5505Fax: (228) 467-5504E-mail: dperniciaro@baystlouis-ms.gov Documents District 9 Hazard Mitigation Plan Bay St. LouisDownload