US Bridges

Grove ST (cr 644) over Cooper River

Fair

Camden County, New Jersey · 0.24 MI S of Rt 70 · Structure no. 044D001

Built
1931
94 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
14,327
2023 count
Owner
County
County Highway Agency

About this bridge

Grove ST (cr 644) over Cooper River is a steel stringer/multi-beam or girder carrying Grove ST (cr 644) over Cooper River in Camden County, New Jersey. It was built in 1931, so it is 94 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 14,327 vehicles a day, roughly 4% of them trucks, projected to reach 17,482 by 2043. The structure is 61 ft (18.6 m) long and 66 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesGrove ST (cr 644)
CrossesCooper River
Location0.24 MI S of Rt 70
RouteCounty Highway 644
CountyCamden County
StateNew Jersey
Coordinates39.91577, -75.03468
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span55 ft (16.8 m)
Deck width66 ft (20 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,327 (2023)
Projected traffic17,482 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Grove ST (cr 644) over Cooper River built?

It was built in 1931, making it 94 years old in 2025.

What condition is Grove ST (cr 644) over Cooper River 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 February 2023.

How much traffic does Grove ST (cr 644) over Cooper River carry?

About 14,327 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Grove ST (cr 644) over Cooper River?

The structure is 61 ft (18.6 m) long with a longest span of 55 ft (16.8 m) and a deck 66 ft wide.

Who owns Grove ST (cr 644) over Cooper River?

It is owned by the County Highway Agency.