US Bridges

Hill Farm RD over Johnsons Pond

Fair

Kent County, Rhode Island · 0.6 MI W of JCT Ri 3 · Structure no. 000000000003340

Built
1934
91 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
4,870
2021 count
Owner
State
State Highway Agency

About this bridge

Hill Farm RD over Johnsons Pond is a concrete slab carrying Hill Farm RD over Johnsons Pond in Kent County, Rhode Island. It was built in 1934, so it is 91 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 4,870 vehicles a day, roughly 12% of them trucks, projected to reach 5,357 by 2041. The structure is 36 ft (11 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHill Farm RD
CrossesJohnsons Pond
Location0.6 MI W of JCT Ri 3
RouteCity Street 0
CountyKent County
StateRhode Island
Coordinates41.67312, -71.6079
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating85.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span30 ft (9.1 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,870 (2021)
Projected traffic5,357 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$1.8 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hill Farm RD over Johnsons Pond built?

It was built in 1934, making it 91 years old in 2025.

What condition is Hill Farm RD over Johnsons Pond 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 Hill Farm RD over Johnsons Pond carry?

About 4,870 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Hill Farm RD over Johnsons Pond?

The structure is 36 ft (11 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.

Who owns Hill Farm RD over Johnsons Pond?

It is owned by the State Highway Agency.