US Bridges

Great Island RD over Tidal Flats Inlet

Good

Washington County, Rhode Island · 0.1 MI N of Galilee RD · Structure no. 000000000004995

Built
2016
9 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
205 ft
3 main spans
Daily traffic
1,621
2021 count
Owner
State
State Highway Agency

About this bridge

Great Island RD over Tidal Flats Inlet is a prestressed concrete box beam or girders - multiple carrying Great Island RD over Tidal Flats Inlet in Washington County, Rhode Island. It was built in 2016, so it is 9 years old, younger than the Rhode Island average of 54.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,621 vehicles a day, roughly 8% of them trucks, projected to reach 1,783 by 2041. The structure is 205 ft (62.5 m) long and 49 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesGreat Island RD
CrossesTidal Flats Inlet
Location0.1 MI N of Galilee RD
RouteCity Street 0
CountyWashington County
StateRhode Island
Coordinates41.38419, -71.50728
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length205 ft (62.5 m)
Longest span83 ft (25.3 m)
Deck width49 ft (14.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,621 (2021)
Projected traffic1,783 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$14.6 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Great Island RD over Tidal Flats Inlet built?

It was built in 2016, making it 9 years old in 2025.

What condition is Great Island RD over Tidal Flats Inlet in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Great Island RD over Tidal Flats Inlet carry?

About 1,621 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Great Island RD over Tidal Flats Inlet?

The structure is 205 ft (62.5 m) long with a longest span of 83 ft (25.3 m) and a deck 49 ft wide.

Who owns Great Island RD over Tidal Flats Inlet?

It is owned by the State Highway Agency.