Bridge Type
Main Span(s): Steel [3] Suspension [13]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 1480.7 m = 4858.2 ft
Main Spans: 3 at 365.8 m = 1200.2 ft
Approach Spans: 28
Skew: 0
Width, Roadway: 8.2 m = 26.9 ft (2 Lanes) and Out-To-Out: 9.7 m = 31.8 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 5.18 m = 17.0 ft and Navigational Clearance: 30.2 m = 99.1 ft
Location
Bristol [09280]: Bristol County [001], Rhode Island [44]
Owned by State Toll Authority [31], DOT District: 6
0.8 Mi S of JCT RI 138
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 26.2 metric ton = 28.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 20.1 metric ton = 22.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: November 2020 [1120] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 3.2 km = 2.0 mi
Traffic
ADT: 18924 (2021) and Trucks: 6%
Future ADT: 20816 (In 2041
)
