Cochran Road Over Deep Creek Bridge to Culvert RedesignTeam Members: Cynthia Roby, Aria Scaggs, Vanessa Diaz-Guerrero

Faculty Mentor: Dr. Jenna Jambeck

BACKGROUND

SITE PLAN

HYDRAULIC ANALYSIS

Sponsor/Client:

EXISTING CONDITIONS● Existing bridge constructed in 1940

to withstand a 25-yr storm● Condemned in October 2018, road

closure in October 2019● Original dimensions - 39 ft x 16 ft● Location - 3448 Cochran Rd SW,

Atlanta, GA

● Superstructure section loss - up to 100%

● Downstream blocked by trees and rip rap

● First 5 beams are starting to crush● Foundation undermining● Erosion and scour at wingwalls● Retaining wall movement● Erosion at both abutments

Multi-Cell Reinforced Concrete Box Culvert Design:

● 100-Year Storm Event Design● Design Peak Flow: 12.35 cfs● Required Storage: 67,308 cuft

CULVERT PROFILE BOX CULVERT PLAN

COST BREAKDOWN

GENERALG-001 COVER SHEET G-002 GENERAL NOTES

CIVILC-101 EXISTING SITE CONDITIONSC-102 DEMOLITION PLAN C-103 SITE PLAN C-104 GRADING PLAN C-105 ROADWAY PLAN C-106 EROSION CONTROL PHASE I C-107 EROSION CONTROL PHASE II C-301 CULVERT PROFILE C-501 EROSION CONTROL DETAILS I C-502 EROSION CONTROL DETAILS II C-503 EROSION CONTROL DETAILS III C-504 CONSTRUCTION DETAILS I C-505 CONSTRUCTION DETAILS II C-506 CONSTRUCTION DETAILS III C-507 CONSTRUCTION DETAILS IV

STRUCTURALS-101 BOX CULVERT PLAN S-501 CULVERT REINFORCEMENT DETAIL S-502 DECK REINFORCEMENT DETAILS

SHEET LIST