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M aking a Difference

in El Zarzal, Nicaragua

Outline Bridges to Prosperity Introduction

Design Criteria & Pre-Construction Docum ents

Bridge Construction Inspection & M aintenance Involvem ent/Sim ilar Organizations

Questions and Answers

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Vision & M ission

Vision: ‘Bridges to Prosperity envisions a world where poverty caused by rural isolation no longer exists.’

M ission: ‘Bridges to Prosperity provides isolated com m unities with access to essential health care, education and econom ic opportunities by building footbridges over im passable rivers.’

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The Challenge

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1 out of every 7 people in the developing world lack safe transportation access to

essential services

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Bridges Im prove Access & Opportunities School attendance: increase 12%

Girls school attendance: increase 200%

Visits to health care facilities: increase 24%

Incom e for rural fam ilies: increase 50%

Literacy for wom en: increase 60%

W om en em ployed: increase 18%

Local businesses: increase 15%

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Bridges to Prosperity Locations

Country Program s: Current Program s Operated by B2P Staff

Partner Program s: Nations W here B2P has Provided Technical, Financial, Training, or Other Program m atic Assistance to Support Bridge Building Efforts

Team

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Com m unities of El Zarzaland El Corozo

Project Location

El Zarzal, Nicaragua

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The El ZarzalSuspension Bridge

B2P’s 44thbridge in Nicaragua• Location: El Zarzal, Nicaragua• Bridge Span: 58 m eters (190 ft.)• Bridge Type: Suspension• Com m unities Served: El Zarzal, Las Jaguas, El Corozoand El Quebrachal

• Population Served: 1,915 • 139 fam ilies in El Zarzal• 244 fam ilies in nearby com m unities of El Corozo, El Quebrachaland Las Jaguas

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Design Inform ation

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Design Loads• Dead Load = 100 kg/m (68 lb/ft)

• Live Load = 415 kg/m (279 lb/ft)

• W ind Load = 40 kg/m (27 lb/ft)

Factor of Safety for M ain Cables & Suspenders: FS=3.0

Foundation Factor of Safety: FS=2.0

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Layout

M inim um Freeboard = 3m (9.8 ft)

M inim um Setback from Banks = 3m (9.8 ft)

M axim um Pedestal Height = 1.5 m (4.9 ft) (Above Ground Level)

M axim um Elevation Difference Between Saddles = span/50

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El ZarzalFootbridge

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75 ft. 190 ft. 47 ft.

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Foundation Construction

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Arrival to Site

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Accom m odations

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Accom m odations

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Accom m odations

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Scaffold Erection

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Tower Erection

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Tower Erection

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Tower Erection

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Tower Erection

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Tower

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9.5 ft.

22 ft.

6” Diam . Steel Pipe

6” tower cant

Tower Erection

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Tower Erection

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Tower Lift

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Cable

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Cable

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Cable

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Cable

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Cable

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M achete W ork

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Cable

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Cable

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Cable

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Hanger and Crossbeam Fabrication

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Suspenders

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Crossbeam s and Suspenders

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Decking

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Decking

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Decking

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Decking

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Fencing

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Fencing

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Fencing

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Final Touches

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W ho Did W e Help?

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W ho Did W e Help?

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W ho Did W e Help?

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Inauguration

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Inauguration

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Inspection

Local M onitoring

Technical Inspection

Technology Supporting Hum an Effort

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M aintenance & M oron

Repairs to the bridge were m ade by B2P trained forem an and locally hired labor

Foundations were unaffected Residents of the M arfranccom m unity were able to access relief services

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Benefits

Local Im pact & Com m unity Pride

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Benefits

Field Experience

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Benefits

Team Building

Cross-Com pany Collaboration

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Benefits

Personal Benefit

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Get Involved

Industry Partnership Program

Organization Trips

Bridge Corps

Sponsorship

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Sim ilar Organizations

Bridging the Gap Africa

Engineers W ithout Borders

HELVETAS Swiss Intercooperation

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Questions?

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