Structure 8000 · Newport County, RI

Ri 138 over West Passage Narra Bay

Carries Ri 138 over West Passage Narra Bay, 2.0 Mi E Of Jct US 1.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
7,353 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

7,353 ft end to end, longest span 636 ft: about 20 football fields, or 1.4 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a segmental box-girder bridge.

Built1992rebuilt 2009
Length7353.0 ft2241.2 m
Daily traffic33,100counted 2021
Last inspectedMay 2023every 24 months

Location

StateRhode Island
CountyNewport
Location2.0 Mi E Of Jct US 1
CarriesRi 138
CrossesWest Passage Narra Bay
Coordinates41.52833, -71.40276

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length7353.0 ft (2241.2 m)
Max Span636.2 ft (193.9 m)
Deck Width74.1 ft (22.6 m)
Deck Area50651.1 sq m
Main Spans23
Year Built1992 (reconstructed 2009)

Traffic

Avg Daily Traffic33,100 (2021)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000008000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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