US Bridges

Social/Clinton Sts over Mill River Conduit

Fair

Providence County, Rhode Island · 0.1 MI E of JCT Ri 126 · Structure no. 000000000009610

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
44 ft
2 main spans
Daily traffic
12,000
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Social/Clinton Sts over Mill River Conduit is a concrete culvert carrying Social/Clinton Sts over Mill River Conduit in Providence County, Rhode Island. It was built in 1962, so it is 63 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 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 12,000 vehicles a day, roughly 1% of them trucks, projected to reach 14,400 by 2036. The structure is 44 ft (13.3 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSocial/Clinton Sts
CrossesMill River Conduit
Location0.1 MI E of JCT Ri 126
RouteCity Street 0
Coordinates42.00928, -71.50654
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length44 ft (13.3 m)
Longest span21 ft (6.4 m)
Deck width56 ft (17.2 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2015)
Projected traffic14,400 by 2036
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$8 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Social/Clinton Sts over Mill River Conduit built?

It was built in 1962, making it 63 years old in 2025.

What condition is Social/Clinton Sts over Mill River Conduit 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 2024.

How much traffic does Social/Clinton Sts over Mill River Conduit carry?

About 12,000 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Social/Clinton Sts over Mill River Conduit?

The structure is 44 ft (13.3 m) long with a longest span of 21 ft (6.4 m) and a deck 56 ft wide.

Who owns Social/Clinton Sts over Mill River Conduit?

It is owned by the City or Municipal Highway Agency.