US Bridges

Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK

PoorPosted for load

Washington County, Rhode Island · 1.9 MI N of JCT US 1 · Structure no. 000000000008560

Built
1975
50 years old
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
2 main spans
Daily traffic
12,829
1994 count
Owner
State
State Highway Agency

About this bridge

Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK is a steel continuous stringer/multi-beam or girder carrying Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK in Washington County, Rhode Island. It was built in 1975, so it is 50 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 12,829 vehicles a day, roughly 3% of them trucks, projected to reach 15,395 by 2036. The structure is 268 ft (81.7 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRi 78 West By-Pass
CrossesRi 91 Brdfrd RD & AMTRAK
Location1.9 MI N of JCT US 1
RouteState Highway 78
Coordinates41.38428, -71.80426
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length268 ft (81.7 m)
Longest span133 ft (40.5 m)
Deck width61 ft (18.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,829 (1994)
Projected traffic15,395 by 2036
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$802,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2025.

How much traffic does Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK carry?

About 12,829 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK?

The structure is 268 ft (81.7 m) long with a longest span of 133 ft (40.5 m) and a deck 61 ft wide.

Who owns Ri 78 West By-Pass over Ri 91 Brdfrd RD & AMTRAK?

It is owned by the State Highway Agency.