US Bridges

Austin RD over Potowomut Pond

PoorPosted for load

Washington County, Rhode Island · 0.6 MI E of JCT US 1 · Structure no. 000000000003680

Built
1979
46 years old
Condition
Poor
inspected October 2023
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
747
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Austin RD over Potowomut Pond is a prestressed concrete slab carrying Austin RD over Potowomut Pond in Washington County, Rhode Island. It was built in 1979, so it is 46 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 747 vehicles a day, roughly 6% of them trucks, projected to reach 822 by 2041. The structure is 51 ft (15.4 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesAustin RD
CrossesPotowomut Pond
Location0.6 MI E of JCT US 1
RouteCity Street 0
Coordinates41.63609, -71.45788
Functional classUrban Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating17.2 US tons
Inventory rating13.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.4 m)
Longest span46 ft (14 m)
Deck width40 ft (12.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic747 (2021)
Projected traffic822 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Austin RD over Potowomut Pond built?

It was built in 1979, making it 46 years old in 2025.

What condition is Austin RD over Potowomut Pond 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 October 2023.

How much traffic does Austin RD over Potowomut Pond carry?

About 747 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Austin RD over Potowomut Pond?

The structure is 51 ft (15.4 m) long with a longest span of 46 ft (14 m) and a deck 40 ft wide.

Who owns Austin RD over Potowomut Pond?

It is owned by the Town or Township Highway Agency.