US Bridges

Madison Hill CR604 over Garden State Parkway

Fair

Union County, New Jersey · 3.5 Mile North of Nj 27 · Structure no. 361353T

Built
1948
77 years old
Condition
Fair
inspected June 2023
Type
Frame
Concrete Continuous
Length
160 ft
2 main spans
Daily traffic
7,997
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Madison Hill CR604 over Garden State Parkway is a concrete continuous frame carrying Madison Hill CR604 over Garden State Parkway in Union County, New Jersey. It was built in 1948, so it is 77 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 7,997 vehicles a day, roughly 4% of them trucks, projected to reach 9,758 by 2043. The structure is 160 ft (48.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMadison Hill CR604
CrossesGarden State Parkway
Location3.5 Mile North of Nj 27
RouteCounty Highway 604
CountyUnion County
StateNew Jersey
Coordinates40.61509, -74.31149
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span74 ft (22.6 m)
Deck width55 ft (16.8 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,997 (2023)
Projected traffic9,758 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Madison Hill CR604 over Garden State Parkway built?

It was built in 1948, making it 77 years old in 2025.

What condition is Madison Hill CR604 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 June 2023.

How much traffic does Madison Hill CR604 over Garden State Parkway carry?

About 7,997 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Madison Hill CR604 over Garden State Parkway?

The structure is 160 ft (48.8 m) long with a longest span of 74 ft (22.6 m) and a deck 55 ft wide.

Who owns Madison Hill CR604 over Garden State Parkway?

It is owned by the State Toll Authority.