US Bridges

Ri 24 Ramp C over Ramp B

Fair

Newport County, Rhode Island · 0.5 MI S of JCT Ri 114 · Structure no. 000000000006470

Built
1964
61 years old, rebuilt 1991
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
18,100
2008 count
Owner
State
State Highway Agency

About this bridge

Ri 24 Ramp C over Ramp B is a prestressed concrete stringer/multi-beam or girder carrying Ri 24 Ramp C over Ramp B in Newport County, Rhode Island. It was built in 1964 and reconstructed in 1991, so it is 61 years old, older 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 5 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 18,100 vehicles a day, roughly 10% of them trucks, projected to reach 21,720 by 2036. The structure is 70 ft (21.3 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRi 24 Ramp C
CrossesRamp B
Location0.5 MI S of JCT Ri 114
RouteState Highway 24
CountyNewport County
StateRhode Island
Coordinates41.60209, -71.25804
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating62.5 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span66 ft (20.1 m)
Deck width31 ft (9.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,100 (2008)
Projected traffic21,720 by 2036
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$3.2 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ri 24 Ramp C over Ramp B built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1991.

What condition is Ri 24 Ramp C over Ramp B 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 May 2023.

How much traffic does Ri 24 Ramp C over Ramp B carry?

About 18,100 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Ri 24 Ramp C over Ramp B?

The structure is 70 ft (21.3 m) long with a longest span of 66 ft (20.1 m) and a deck 31 ft wide.

Who owns Ri 24 Ramp C over Ramp B?

It is owned by the State Highway Agency.