US Bridges

Lo Main ST (CR516) over Garden State Parkway

Fair

Monmouth County, New Jersey · 0.5 MI NW of Gsp &RT36 Jc · Structure no. 361191T

Built
1953
72 years old, rebuilt 1972
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
347 ft
6 main spans
Daily traffic
13,584
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

Lo Main ST (CR516) over Garden State Parkway is a steel stringer/multi-beam or girder carrying Lo Main ST (CR516) over Garden State Parkway in Monmouth County, New Jersey. It was built in 1953 and reconstructed in 1972, so it is 72 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 6 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 13,584 vehicles a day, roughly 4% of them trucks, projected to reach 16,576 by 2044. The structure is 347 ft (105.8 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLo Main ST (CR516)
CrossesGarden State Parkway
Location0.5 MI NW of Gsp &RT36 Jc
RouteCounty Highway 516
CountyMonmouth County
StateNew Jersey
Coordinates40.42323, -74.21717
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length347 ft (105.8 m)
Longest span76 ft (23.2 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,584 (2024)
Projected traffic16,576 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$600,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lo Main ST (CR516) over Garden State Parkway built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1972.

What condition is Lo Main ST (CR516) over Garden State Parkway 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 July 2024.

How much traffic does Lo Main ST (CR516) over Garden State Parkway carry?

About 13,584 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Lo Main ST (CR516) over Garden State Parkway?

The structure is 347 ft (105.8 m) long with a longest span of 76 ft (23.2 m) and a deck 52 ft wide.

Who owns Lo Main ST (CR516) over Garden State Parkway?

It is owned by the State Toll Authority.