This project involves rehabilitation of the Hurricane Arch Bridge which is a critical traffic link for the City of Hurricane. This structure, built in 1937, carries State Route 9 across the Virgin River. The current deck system consists of a concrete filled steel grid with a 7.2-meter curb-to-curb, two-lane roadway. The bridge has a main span length of 87 meters and a total structure length of 118 meters. The structure which currently has imposed load restrictions is to be rehabilitated to carry AASHTO HS20 Live Load.

Modjeski and Masters, Inc. provided services which included:

Phase I:

• Condition inspection
• Condition rating
• Seismic analysis
• Rehabilitation study

Phase II:

• Strengthening
• Design of deck replacement with a lightweight concrete filled steel grid deck
• Resetting rockers and modification to roller bearings
• Replacement of expansion joints
• Replacement of existing paint system
• Plans, specifications, and engineer’s estimate.