This project involved fifteen bridges located throughout Oklahoma including the following bridges on the McClellan-Kerr Arkansas River Navigation System:

• US-64 Bridge, Sequoyah and Sebastian Counties
  A 3,087-foot long bridge with a main span of 340 feet.

• I-40 Bridge, Muskogee & Sequoyah Counties
  A 2,003.16-foot long bridge with a main span of 330 feet.

• SH-100 Bridge, Muskogee and Sequoyah Counties
  A 1,928.25-foot long bridge with a main span of 334 feet.

• SH-51 Bridges, Wagoner County
  A 788-foot long bridge with a main span of 211 feet.

• US-59 Bridge, LeFlore and Sequoyah Counties
  A 1,877.00-foot long bridge with a a main span of 350 feet.

• US-62 Bridges, Muskogee County
  A 1,496.50-foot long bridge with a main span of 334 feet.

Modjeski and Masters, Inc. conducted an evaluation of the vulnerability of the bridges to vessel collision, evaluated possible prevention and protective measures, and made recommendations to reduce the risk and consequences of vessel collisions. Several factors affecting the risk and consequences of vessel collisions were investigated including: bridge characteristics; waterway characteristics; history of vessel collisions with the bridge and analysis of the accidents; vessel traffic characteristics and navigation conditions; and marine terminals, wharves and docks near the bridge and their impact on navigation. The risk analysis considered these factors and was performed in accordance with Method II of the “AASHTO Guide Specification and Commentary for Vessel Collision Design of Highway Bridges.”