US Bridges

South RD over Ri 4

Fair

Kent County, Rhode Island · 0.5 MI S of JCT Ri 2 · Structure no. 000000000007670

Built
1983
42 years old, rebuilt 1991
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
2 main spans
Daily traffic
561
2015 count
Owner
State
State Highway Agency

About this bridge

South RD over Ri 4 is a steel continuous stringer/multi-beam or girder carrying South RD over Ri 4 in Kent County, Rhode Island. It was built in 1983 and reconstructed in 1991, so it is 42 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 561 vehicles a day, roughly 10% of them trucks, projected to reach 674 by 2036. The structure is 180 ft (55 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSouth RD
CrossesRi 4
Location0.5 MI S of JCT Ri 2
RouteCity Street 0
CountyKent County
StateRhode Island
Coordinates41.60799, -71.49634
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length180 ft (55 m)
Longest span88 ft (26.7 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic561 (2015)
Projected traffic674 by 2036
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$9.5 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was South RD over Ri 4 built?

It was built in 1983, making it 42 years old in 2025. It was reconstructed in 1991.

What condition is South RD over Ri 4 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does South RD over Ri 4 carry?

About 561 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is South RD over Ri 4?

The structure is 180 ft (55 m) long with a longest span of 88 ft (26.7 m) and a deck 38 ft wide.

Who owns South RD over Ri 4?

It is owned by the State Highway Agency.