US Bridges

Willow Grove Road over Still Run at Iona Lake

Fair

Gloucester County, New Jersey · 0.65 Mi. N of US 40 · Structure no. 0810K04

Built
1938
87 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
3,294
2024 count
Owner
County
County Highway Agency

About this bridge

Willow Grove Road over Still Run at Iona Lake is a concrete slab carrying Willow Grove Road over Still Run at Iona Lake in Gloucester County, New Jersey. It was built in 1938, so it is 87 years old, older than the New Jersey average of 58.5 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 3,294 vehicles a day, roughly 3% of them trucks, projected to reach 3,953 by 2044. The structure is 29 ft (8.8 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWillow Grove Road
CrossesStill Run at Iona Lake
Location0.65 Mi. N of US 40
RouteCounty Highway 613
CountyGloucester County
StateNew Jersey
Coordinates39.59494, -75.0816
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,294 (2024)
Projected traffic3,953 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow Grove Road over Still Run at Iona Lake built?

It was built in 1938, making it 87 years old in 2025.

What condition is Willow Grove Road over Still Run at Iona Lake 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 Willow Grove Road over Still Run at Iona Lake carry?

About 3,294 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Willow Grove Road over Still Run at Iona Lake?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 38 ft wide.

Who owns Willow Grove Road over Still Run at Iona Lake?

It is owned by the County Highway Agency.